MOBILE ACCESS TOWER SHALLOW BRACE

Incorporating the use of Advance Guardrail and 3T methods of assembly SHALLOW BRACE INSTRUCTION MANUAL Issued January 2008 MOBILE ACCESS TOWER I...
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Incorporating the use of Advance Guardrail and 3T methods of assembly

SHALLOW BRACE

INSTRUCTION MANUAL

Issued January 2008

MOBILE ACCESS TOWER

INTRODUCTION This instruction manual contains all the information required to correctly assemble the OCTO 250 shallow brace mobile access tower incorporating the two PASMA (Prefabricated Access Suppliers’ and Manufacturers Association) approved methods of assembly as endorsed by the Health and Safety Executive. The primary method of safe assembly is the incorporation of Advance Guardrail protection (PlusGard™) to provide collective measures enabling full compliance with the Work at Height Regulations 2005. The provision and utilisation of Advance guardrail protection is recommended for all operatives erecting OCTO 250 Mobile Access Towers. This Manual should be used in conjunction with a suitable Risk Assessment and Method Statement (by user) relative to the project to be undertaken, Work at Height Regulations 2005, Regulation 6(1). It must be noted that all employers have a responsibility to ensure that work methods (practices) and adequate facilities/ resources (including work equipment) are provided to eliminate or minimise risks, Work at Height Regulations 2005, Regulations 6, 7, 8 and Schedule 3 Part 2. Please ensure you read and fully understand the manual. Follow the content during assembly and ensure that the tower is complete prior to use. This manual must be made available to the user/ assembler at all times. Whilst the initial section of this manual is dedicated to the preferred method of assembly by using PlusGard™ and thereby complying with the Work at Height Regulations 2005, a secondary method (3T) is also included within this Manual. However, with the availability of PlusGard™ the user/ duty holder may find justification of this option difficult in relation to compliance with The Work at Height Regulations 2005. Sufficient training, combined with necessary experience, must also be considered and be appropriate to achieve competency to undertake basic mobile access tower assembly. Only competent (and qualified) personnel should undertake erection, dismantling and alteration (and organisation, planning and supervision) of basic mobile access towers, Regulation 5, the Work at Height Regulations 2005 and consideration should be given to providing additional (minimum) training beforehand, if required (Regulation 6 (5)(b)). GENERAL SAFETY NOTES 1.

Ensure that all necessary components and safety equipment (including PlusGard™ components) are available and operational.

2.

Inspect the tower and PlusGard™ components for signs of damage or incorrect functioning prior to use. Damaged or incorrect components must not be used. Castors and adjustable legs should be periodically lubricated to keep them free running.

3.

Erect Exclusion zone and fit Warning Signs to comply with Schedule 3 Part 2 (11), Work at Height Regulations 2005.

2

4.

Ensure the scaffolding is to be erected on suitable foundations capable of withstanding the loads imposed by the scaffolding (Schedule 3 Part 1(2) of Work at Height Regulations 2005) and, where appropriate, adequate sole boards to be provided.

5.

It is recommended that at least two people assemble the tower.

6.

OCTO 250 towers MUST ALWAYS be climbed from the inside, climbing the frames only.

7.

When lifting components or materials, always use reliable lifting equipment and tying methods to ensure there is no possibility of the tower overturning. Always lift from within the tower base.

8.

Mobile access towers must only be moved manually, by pushing at the base. Ensure that the platforms are free of persons and equipment and that brake locks are off prior to movement. Beware of soft or uneven ground and overhead obstructions. The tower height must be reduced to 4m high and stabilisers raised approx 25mm clear of the ground. On completing the move apply all brakes and check adjustment and stability prior to completion of tower to full assembled height.

Note Tower height must be reduced to 2m high prior to any moves if less than 4 stabilisers are used.

9.

Always inspect the tower after moving and before use.

10. Always beware of live electrical apparatus, cables or moving parts of machinery. 11. Care should be taken when using power tools, wash jets or other tools that cause lateral force. The maximum lateral force on a freestanding tower at platform level is 20kg. 12. DO NOT use boxes, ladders or other such means to gain additional height. 13. Never bridge between a tower and a building unless specification and approved. 14. Never jump onto platforms. 15. Do not use hoisting arrangements on a mobile access tower. 16. Fit side guardrails at all platforms. 17. Fit toeboards on all working platforms. 18. Fit intermediate rest platforms at 4m intervals (maximum). 19. Mobile access towers are not designed to allow them to be lifted or suspended. 20. PlusGard™ is personal protection equipment only and should not be used in any other way. 21. In accordance with regulations any tower that has been erected must be inspected every 7 days (minimum) to ensure that the tower continues to comply with the regulations. WIND SPEED SAFETY RULES Where possible, tie in the tower to a rigid structure when working outdoors or in exposed conditions. Beware of the funnelling effect of open ended and uncladded buildings. 3

Beaufort Scale 0-4 5-6 >6

Description Moderate Breeze Small branches move Strong Breeze Large branches bend Walking progress impeded

Air Speed 13-18 mph 25-31 mph 34-40 mph

Action No action required Tie tower to a rigid structure Dismantle tower if such conditions are expected

STABILISERS Stabilisers should be attached at about 45° as shown, so that A is roughly equal to B, and forms the largest possible square. If this is not possible, e.g. façade work, use the alternative methods illustrated.

MAXIMUM LOAD The maximum load is 225 Kg per platform evenly distributed. A maximum of 3 platforms may be loaded. Maximum load, however, is 625 Kg for total tower. BRACES All braces are fitted with self-priming triggers that automatically lock when attached to the tower. Attach braces square to the tower and remove by releasing the trigger. When attaching diagonal braces and handrails the braces face down. PLUSGARD™ PlusGard™ is an additional advance guardrail that provides fall prevention for the erector throughout tower erection and dismantling. PlusGard™ consists of verticals (mounted on the tower uprights) and telescopic guardrails*. The vertical’s locking device can be operated from above or below and can either be locked in the closed or open configurations. The locking procedures for both configurations are as follows: 4

The attachment hooks are closed and locked when the locking pistons do not project from the back face of the attachment hooks (circled). Turn and pull the upper control handle (or turn and push the lower control handle), as shown adjacent. The attachment hooks are now locked in the

open position and the locking piston projects

out from the back face of the attachment hook (circled). It is now easy to reposition the vertical. When the vertical is in place, turn and push the upper control handle (or turn and pull the lower control handle) as shown adjacent. The attachment hooks are now closed and locked. Always ensure that the locking piston does not project from the back face of the attachment hook (circled). Even the slightest projection indicates that it is not properly secured.

When erecting a scaffold, PlusGard™ is assembled at each bay from ground level. It is then moved upwards, a lift at a time, after the scaffold’s integral guardrails have been installed. When dismantling, PlusGard is attached at the top lift and moved down as the scaffold is dismantled. Each move is made from the lift below before the scaffold’s integral guardrails have been removed.

Note It is recommended that operatives wear gloves when using PlusGard™. * How to choose the telescopic guardrails Both the scaffold’s bay length and lift height will influence the choice of telescopic guardrail. It is preferable to choose guardrails that can be moved up or down in one step. Should the choice of telescopic guardrails be limited and the available guardrail does not extend to the required diagonal distance then the following solution should be adopted: Move initial vertical half the distance it is required to travel, ie 1m, then move the adjacent vertical to the correct height (2m). Move the initial vertical to the correct height (2- step moving). Repeat as necessary until all telescopic guardrails are at the required position.

NARROW WIDTH TOWERS Narrow width towers are assembled following the same steps as explained for span towers, except that all platforms are trapdoor platforms ensuring that successive trapdoors are at opposing ends of tower. 5

COMPONENT BREAKDOWN CHARTS (PlusGard™ method – Span) COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 250 SPAN

2

3

4

5

6

7

8

9

10

11

12

8R Span Frame

2

4

4

6

6

8

8

10

10

12

12

4R Span Frame

2

0

2

0

2

0

2

0

2

0

2

Horizontal Brace

6

6

6

10

10

10

10

14

14

14

14

Diagonal Brace

4

6

8

10

12

14

16

18

20

22

24

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Adjustable Leg

4

4

4

4

4

4

4

4

4

4

4

Castor

4

4

4

4

4

4

4

4

4

4

4

Fixed Platform

1

1

1

2

2

2

2

3

3

3

3

Trapdoor Platform

1

1

1

2

2

2

2

3

3

3

3

Stabiliser Std. (Indoor use)

4

4

4

4

4

4

4

0

0

0

0

Stabiliser Std. (Outdoor use)

4

4

4

4

4

0

0









Stabiliser Large (Indoor use)

0

0

0

0

0

0

0

4

4

4

4

Stabiliser Large (Outdoor use)

0

0

0

0

0

4

4









Total tower self weight (Kg) - 1.5m

124

136

159

201

223

235

257

310

332

344

366

Total tower self weight (Kg) - 2.5m

148

162

186

244

268

282

306

375

399

413

437

Total tower self weight (Kg) - 3.2m

165

179

204

275

299

314

338

420

444

459

483

Toeboard (End)* c Toeboard (Side)*

c

◊ Stabiliser not required • Do not use tower unless tied in

* For one working platform only (additional platforms to be factored accordingly) c For folding toeboards: 1 per working platform

• Do not use tower unless tied in * For one working platform only (additional platforms to be factored accordingly) c For folding toeboards: 1 per working platform

Additional kit required during Assembly and Dismantle operations (Span) PLATFORM HEIGHT IN METRES

COMPONENTS OCTO 250 SPAN

2

3

4

5

6

7

8

9

10

11

12

Horizontal Brace

0

0

4

0

4

4

8

4

8

8

12

Fixed Platform

0

1

1

0

0

1

1

1

1

2

2

Trapdoor Platform

0

1

1

0

0

1

1

1

1

2

2

Plusgard Vertical

4

4

4

4

4

4

4

4

4

4

4

Telescopic Guardrail

4

4

4

4

4

4

4

4

4

4

4

Weight of Additional kit (Kg) - 1.5m

33

57

64

33

40

64

70

64

70

94

100

Weight of Additional kit (Kg) - 2.5m

34

71

79

34

42

79

87

79

87

124

132

Weight of Additional kit (Kg) - 3.2m

39

84

96

39

51

96

108

96

108

152

164

Note Weight of Additional kit required during assembly and dismantle operations has not been factored into total tower self weight calculations.

6

COMPONENT BREAKDOWN CHARTS (PlusGard™ method - Narrow width) COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 250 N/W

2

3

4

5

6

7

8

9

10

11

12

8R N/W Frame

2

4

4

6

6

8

8

10

10

12

12

4R N/W Frame

2

0

2

0

2

0

2

0

2

0

2

Horizontal Brace

6

6

6

10

10

10

10

14

14

14

14

4

6

8

10

12

14

16

18

20

22

24

Toeboard (End)*

2

2

2

2

2

2

2

2

2

2

2

Toeboard (Side)* c

2

2

2

2

2

2

2

2

2

2

2

Adjustable Leg

4

4

4

4

4

4

4

4

4

4

4

Castor

4

4

4

4

4

4

4

4

4

4

4

Trapdoor Platform

1

1

1

2

2

2

2

3

3

3

3

Stabiliser Std. (Indoor use)

4

4

4

4

4

4

4

0

0

0

0

Stabiliser Std. (Outdoor use)

4

4

4

4

4

0

0









Stabiliser Large (Indoor use)

0

0

0

0

0

0

0

4

4

4

4

Stabiliser Large (Outdoor use)

0

0

0

0

0

4

4









Total tower self weight (Kg) - 1.5m

101

111

128

156

174

184

201

240

257

267

285

Total tower self weight (Kg) - 2.5m

118

130

149

187

206

218

237

286

305

317

336

Total tower self weight (Kg) - 3.2m

131

143

163

210

230

242

262

320

339

352

371

Diagonal Brace c

• Do not use tower unless tied in * For one working platform only (additional platforms to be factored accordingly) c For folding toeboards: 1 per working platform

Additional kit required during Assembly and Dismantle operations (Narrow Width)

COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 250 N/W

2

3

4

5

6

7

8

9

10

11

12

Horizontal Brace

0

0

4

0

4

4

8

4

8

8

12

Trapdoor Platform

0

1

1

0

0

1

1

1

1

2

2

Plusgard Vertical

4

4

4

4

4

4

4

4

4

4

4

Telescopic Guardrail

4

4

4

4

4

4

4

4

4

4

4

Weight of Additional kit (Kg) - 1.5m

33

45

52

33

40

52

58

52

58

70

76

Weight of Additional kit (Kg) - 2.5m

34

53

61

34

42

61

69

61

69

88

96

Weight of Additional kit (Kg) - 3.2m

39

62

74

39

51

74

86

74

86

108

120

Note Weight of Additional kit required during assembly and dismantle operations has not been factored into total tower self weight calculations.

7

OCTO 250 SERIES

DAILY CHECKS

Tower Length Component Size Component Weight

m

Kg

m

Kg

m

Kg

The tower must be checked on a daily basis and after any significant weather changes e.g. high winds, snow, frost.

8R Span Frame 4R Span Frame

2.0 1.0

13.2 9.1

2.0 1.0

13.2 9.1

2.0 1.0

13.2 9.1

Use the checklist prior to use.

8R Narrow Frame 4R Narrow Frame

2.0 1.0

9.8 6.7

2.0 1.0

9.8 6.7

2.0 1.0

9.8 6.7

Tower is vertical and square

Horizontal Brace Diagonal Brace

1.5 1.8

1.59 1.92

2.5 2.7

2.03 2.81

3.2 3.4

3.01 3.12

Braces correctly fitted and secure

21.9

Castors locked/ legs correctly adjusted

1.5m

COMPONENTS

Fixed Platform

1.5

11.8

2.5m

2.5

18.2

3.2m

3.2

below

Trapdoor Platform

1.5

12.0

2.5

18.6

3.2

22.6

All castors, base plates and stabilisers are in contact with the ground

Toeboard (side) Toeboard (end) Toeboard (end)

1.5 1.45 0.85

1.1 0.7 0.5

2.5 1.45 0.85

3.3 0.7 0.5

3.2 1.45 0.85

4.3 0.7 0.5

Toeboards located

Span Narrow

1.5 1.5

6.30 6.05

2.5 2.5

9.09 8.84

3.2 3.2

11.9 0 11.6 5

Correct stabilisers fitted, adjusted and secure

Adjustable Leg

a

1.3

a

1.3

a

1.3

Hand rails fitted and secure

Castor 200 Castor 125

b c

4.3 2.5

b c

b c

4.3 2.5

If a box has not been ticked, do not use the tower until the fault is rectified.

Stabiliser Std. Stabiliser Large

V51

4.3 2.5

5.0 7.7

2.11

5.1

5.0 7.7

2.11

5.1

5.0 7.7

2.11

Where a fault is found, access to the tower must be stopped.

5.1 KEY to Table

T2L T2M T3L

d e f

4.6 3.4 3.2

d e f

4.6 3.4 3.2

8

d e f

4.6 3.4 3.2

a) b) c) d) e) f)

Adjustable over a distance of 500mm 200mm wheel diameter 125mm wheel diameter Telescopic from 2.30m to 3.66m Telescopic from 2.07m to 3.07m Telescopic from 1.25m to 2.5m

THE BASE SECTION 1.

Fit four legs and castors (or base plates) to two 8 rung span frames (see illustration). Turn the height adjustment collar on each leg until approximately 100mm from the lower end. Insert each leg until the collar is in contact with the frame’s tubing.

2.

Set each castor brake on by moving the brake lever fully down.

3.

With each frame’s spigot facing inward, attach two horizontals to the upright of each frame, above the first rung and square the two frames to each other. Note It may be advantageous to place a platform at low level to assist in “squaring” tower.

4.

With the aid of a spirit level, you should now make any necessary adjustments to level the tower by turning the adjustment collar.

5.

Attach two diagonal braces to the bottom rung of each base frame, with one brace being placed so the brace hook is as far to the outer edge as possible, the other brace hook should be placed at least 50mm (one tube width) from outer edge. Then attach the other end of both braces to the 5th rung on the opposing 2m frame. 9

STABILISERS When specified, the correct stabilisers or outriggers must always be used. See component checklists on Pages 6 and 7. When using standard stabilisers, fit them now. To attach the stabiliser, fit the upper screw clamp to frame upright, approx. 50mm above the seventh rung (from ground), then fit the lower screw clamp as low as possible to the frame upright.

Set each stabiliser at 45° (approx) creating as large a footprint as possible and ensure that they are in firm contact with the ground. Notes It may be advantageous to ensure that stabilisers are fitted from frame side as shown. Large Stabilisers can only be fitted after upper frame has been placed. If repositioning stabilisers when in position then screw clamps MUST be loosened prior to movement then re– fixed.

ASSEMBLING UPPER FRAMES PlusGard Vertical

1.

Ensuring PlusGard™ attachment hooks are locked in the open position, attach the PlusGard™ vertical to the tower upright at the lowest possible location (adjustable leg) and close the attachment hooks using either the lower or upper control handles.

2.

Repeat Step 1 for remaining tower uprights.

3.

Attach the telescopic guardrail components by mounting the outer tube end into the guardrail holder ensuring that the spring-loaded locking device on the end attachment is securely locked in the guardrail holder.

Upper Control Handle Guardrail holder (height adjustable)

Telescopic Guardrail Attachment hooks

End Attachment 4. Lower Control Handle

Transport Lock

Release the inner tube end by pressing the transport locking pin on the underside of the tube and pull out the inner tube to the required length. Mount the inner tube end into the opposing vertical guardrail holder and check that the springloaded locking device on the end attachment is securely locked in position. 10

Repeat steps 3 & 4 for remaining telescopic guardrails. 5.

Raise PlusGard™ verticals into a position where the upper telescopic guardrail is one metre above the platform level by releasing the attachment hooks (using either the lower or upper control handles) and lock in the open position.

6.

Lift the verticals, in turn, and attach at the appropriate height. Lock and secure the attachment hooks and turn verticals inward to face of tower (platform) to minimise gap.

7.

Place a trapdoor platform and fixed platform to 1m level (4 rungs) ensuring that the trapdoor hinge is to the outside edge. Note This platform is used temporarily to assist in the erection of the tower.

8.

Add two 1m (4 Rung) frames on top of the existing frames.

9.

Attach two diagonal braces from 5th rung of lower frame and attach to 1st rung of opposing 1m (4 rung) frame in accordance with bracing pattern.

10. Fit horizontal braces (both sides) to 2nd rung of 1m frame to form permanent lower handrail to 1st lift platform level. 11. Remove level.

platforms

from

1m

12. Raise PlusGard™ verticals into a position where the upper telescopic guardrail is one metre above the first lift platform level by releasing the attachment hooks (using either the lower or upper control handles) and lock in the open position.

11

13. Lift PlusGard™ verticals, in turn, and attach at the appropriate height. Lock and secure the attachment hooks and turn verticals inward to face of tower (platform) to minimise gap. 14. Place trapdoor platform and fixed platform to first lift platform level (8 rungs) ensuring that the trapdoor hinge is to the outside edge. 15. Attach Horizontal braces (both sides) to top rung of 1m frame to form permanent guardrail to 1st lift platform level. Horizontal braces should be set at outer edge to one side of the tower and one tube width (50mm) from outer edge to other side. 16. Add two more 8 Rung frames on top of the existing frames. 17. Attach two diagonal braces from lower frame to upper frame in accordance with bracing pattern. 18. Attach a further two diagonal braces in accordance with brace pattern. 19. Repeat steps 12 & 13 to raise PlusGard™ into a position where the upper telescopic guardrail is one metre above the second platform level. 20. Place a trapdoor platform and fixed platform to second lift platform level ensuring that trap is placed at opposing corner to trap on platform below. 21. Attach horizontal braces (both sides) at 2nd rung and 4th rung above platform to form permanent guardrail. Horizontal braces should be set at outer edge to one side of the tower and one tube width (50mm) from outer edge to other side. Repeat steps 16 to 21 as necessary until desired height is reached (max. height 8m outdoors and 12 m indoors). 22. Upon completion of the tower, disassemble PlusGard™ (at the top) in the opposite order to the assembly (steps 1 to 5).ie. detach telescopic guardrails by releasing the inner tube ensuring that the transport locking pin on the underside of the tube is properly engaged. 23. Detach the outer tube end and thereafter remove the PlusGard™ verticals. The tower is complete.

12

ODD HEIGHT TOWERS 1.

Fit four legs and castors (or base plates) to two 8 rung span frames (see illustration). Turn the height adjustment collar on each leg until approximately 100mm from the lower end. Insert each leg until the collar is in contact with the frame’s tubing.

2.

Set each castor brake on by moving the brake lever fully down.

3.

With each frame’s spigot facing inward, attach two horizontals to the upright of each frame, above the first rung and square the two frames to each other. Note It may be advantageous to place a platform at low level to assist in “squaring” tower.

4.

With the aid of a spirit level, you should now make any necessary adjustments to level the tower by turning the adjustment collar.

5.

Attach two diagonal braces to the bottom rung of each base frame, with one brace being placed so the brace hook is as far to the outer edge as possible, the other brace hook should be placed at least 50mm (one tube width) from outer edge.

6.

Then attach the other end of both braces to the fifth rung on the opposing 2m frame.

7.

Fit stabilisers (see Stabilisers section; page 10) 13

8.

Ensuring advance guardrail (PlusGard™) attachment hooks are locked in the open position, attach the PlusGard™vertical to the tower upright at the lowest possible location (adjustable leg) and close the attachment hooks using either the lower or upper control handles.

9.

Repeat Step 8 for remaining tower uprights.

10. Attach the telescopic guardrail components by mounting the outer tube end into the guardrail holder ensuring that the spring-loaded locking device on the end attachment is securely locked in the guardrail holder. 11. Release the inner tube end by pressing the transport locking pin on the underside of the tube and pull out the inner tube to the required length. Mount the inner tube end into the opposing vertical guardrail holder and check that the spring-loaded locking device on the end attachment is securely locked in position. 12. Repeat steps 10 & 11 for remaining telescopic guardrails. 13. Raise PlusGard™verticals into a position where the upper telescopic guardrail is one metre above the first lift platform level (4th rung) by releasing the attachment hooks (using either the lower or upper control handles) and lock in the open position. Lift the verticals, in turn, and attach at the appropriate height. Lock and secure the attachment hooks and turn verticals inward to face of tower (platform) to minimise gap. 14. Place a trapdoor platform and fixed platform to first lift platform level (4 rungs) ensuring that the trapdoor hinge is to the outside edge.

Note This platform may be used temporarily to assist in the erection of the tower. 15. Add two more frames on top of the existing frames.

16. Attach two diagonal braces from lower frame to upper frame in accordance with bracing pattern. 17. Attach two more diagonal braces in accordance with brace pattern. 18. Attach horizontal braces (both sides) at 2nd rung and 4th rung above platform to form permanent guardrail. Horizontal braces should be set at outer edge to one side of the tower and one tube width (50mm) from outer edge to other side. 14

19. Repeat step 13 to raise PlusGard™ into a position where the upper telescopic guardrail is one metre above the second platform level. 20. Place a trapdoor platform and fixed platform to second lift platform level ensuring that trap is placed at opposing corner to trap on platform below.

Repeat steps 15 to 20 as necessary until desired height is attained (max. height 8m outdoors and 12 m indoors). 21. Upon completion of tower disassemble PlusGard™ (at the top) in the opposite order to the assembly (steps 8 to 12).ie. detach telescopic guardrails by releasing the inner tube ensuring that the transport locking pin on the underside of the tube is properly engaged. 22. Detach the outer thereafter remove verticals.

tube end and the PlusGard™

The tower is complete.

DISMANTLING THE TOWER The dismantling procedure is simply a reversal of the steps explained for the assembly. For your safety and that of others, take particular care not to allow components to fall to the ground since this will not only result in damage but may cause serious injury. TRAINING These instructions do not take the place of proper training. Consult your supplier for details of specific training courses for users of mobile access towers. 15

THE 3T METHOD OF ASSEMBLY Whilst our recommended method of assembly to fully comply with the Work at Height Regulations 2005, is by using Advance Guardrails (PlusGard™), a secondary method has also been approved and endorsed by both PASMA and the HSE. This method is known as the 3T method (Through The Trap). NARROW WIDTH TOWERS Narrow width towers are assembled following the same steps as explained for span towers, except that all platforms are trapdoor platforms ensuring that successive trapdoors are at opposing ends of tower. COMPONENT BREAKDOWN CHARTS (3T Method - Span) COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 250 SPAN

2

3

4

5

6

7

8

9

10

11

12

8R Span Frame

2

4

4

6

6

8

8

10

10

12

12

4R Span Frame

2

0

2

0

2

0

2

0

2

0

2

Horizontal Brace

6

6

6

10

10

10

10

14

14

14

14

4

6

8

10

12

14

16

18

20

22

24

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Adjustable Leg

4

4

4

4

4

4

4

4

4

4

4

Castor

4

4

4

4

4

4

4

4

4

4

4

Fixed Platform

1

1

1

1

1

1

1

1

1

1

1

Trapdoor Platform

1

1

1

2

2

2

2

3

3

3

3

Stabiliser Std. (Indoor use)

4

4

4

4

4

4

4

0

0

0

0

Stabiliser Std. (Outdoor use)

4

4

4

4

4

0

0









Stabiliser Large (Indoor use)

0

0

0

0

0

0

0

4

4

4

4

Stabiliser Large (Outdoor use)

0

0

0

0

0

4

4









Total tower self weight (Kg) - 1.5m

124

136

159

189

211

223

245

286

308

320

342

Total tower self weight (Kg) - 2.5m

148

162

186

226

250

264

288

339

363

377

400

Total tower self weight (Kg) - 3.2m

165

179

204

253

277

292

316

376

400

415

439

Diagonal Brace Toeboard (End)*

c

Toeboard (Side)*

c

• Do not use tower unless tied in * For one working platform only (additional platforms to be factored accordingly) c For folding toeboards: 1 per working platform

Additional kit required during Assembly and Dismantle operations (Span) PLATFORM HEIGHT IN METRES

COMPONENTS OCTO 250 SPAN

2

3

4

5

6

7

8

9

10

11

12

Horizontal Brace

0

0

4

0

0

4

4

4

4

8

8

Trapdoor Platform

0

1

1

0

0

1

1

1

1

2

2

Weight of Additional kit (Kg) - 1.5m

0

12

19

0

0

19

19

19

19

37

37

Weight of Additional kit (Kg) - 2.5m

0

19

27

0

0

27

27

27

27

54

54

Weight of Additional kit (Kg) - 3.2m

0

23

35

0

0

35

35

35

35

69

69

Note Weight of Additional kit required during assembly and dismantle operations has not been factored into total tower self weight calculations.

16

COMPONENT BREAKDOWN CHARTS (3T Method – Narrow Width) COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 250 N/W

2

3

4

5

6

7

8

9

10

11

12

8R N/W Frame 4R N/W Frame

2 2

4 0

4 2

6 0

6 2

8 0

8 2

10 0

10 2

12 0

12 2

Horizontal Brace

6

6

6

10

10

10

10

14

14

14

14

4

6

8

10

12

14

16

18

20

22

24

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Adjustable Leg

4

4

4

4

4

4

4

4

4

4

4

Castor

4

4

4

4

4

4

4

4

4

4

4

Trapdoor Platform

1

1

1

2

2

2

2

3

3

3

3

Stabiliser Std. (Indoor use)

4

4

4

4

4

4

4

0

0

0

0

Stabiliser Std. (Outdoor use)

4

4

4

4

4

0

0









Stabiliser Large (Indoor use)

0

0

0

0

0

0

0

4

4

4

4

Stabiliser Large (Outdoor use)

0

0

0

0

0

4

4









Total tower self weight (Kg) - 1.5m

101

111

128

156

174

184

201

240

257

267

285

Total tower self weight (Kg) - 2.5m

118

130

149

187

206

218

237

286

305

317

336

Total tower self weight (Kg) - 3.2m

131

143

163

210

230

242

262

320

339

352

371

Diagonal Brace Toeboard (End)*

c

Toeboard (Side)*

c

• Do not use tower unless tied in * For one working platform only (additional platforms to be factored accordingly) c For folding toeboards: 1 per working platform

Additional kit required during Assembly and Dismantle operations (N/W) PLATFORM HEIGHT IN METRES

COMPONENTS OCTO 250 N/W

2

3

4

5

6

7

8

9

10

11

12

Horizontal Brace

0

0

4

0

0

4

4

4

4

8

8

Trapdoor Platform

0

1

1

0

0

1

1

1

1

2

2

Weight of Additional kit (Kg) - 1.5m

0

12

19

0

0

19

19

19

19

37

37

Weight of Additional kit (Kg) - 2.5m

0

19

27

0

0

27

27

27

27

54

54

Weight of Additional kit (Kg) - 3.2m

0

23

35

0

0

35

35

35

35

69

69

Note Weight of Additional kit required during assembly and dismantle operations has not been factored into total tower self weight calculations.

THE BASE SECTION 1.

Fit four legs and castors (or base plates) to two 4 rung span frames (see illustration). Turn the height adjustment collar on each leg until approximately 100mm from the lower end. Insert each leg until the collar is in contact with the frame’s tubing.

2.

Set each castor brake on by moving the brake lever fully down.

17

3.

With each frame’s spigot facing inward, attach two horizontals to the upright of each frame, above the first rung and square the two frames to each other.

Note It may be advantageous to place a platform at 4.

With the aid of a spirit level, you should now make any necessary adjustments to level the tower by turning the adjustment collar.

5.

Attach two temporary horizontal braces to 3rd rung of frame (at least 100mm from outer edge).

6.

Add two 2m frames on top of base (1m) frames.

7.

Attach two diagonal braces to the bottom rung of each base frame, with one brace being placed as far to the outer edge as possible, the other brace being placed at least 50mm (one tube width) from outer edge. Then attach the other end of both braces to the bottom rung on the opposing 2m frame.

8.

Attach two more diagonal braces (in accordance with brace pattern) from 1st rung to 5th rung of upper frame.

9.

Remove temporary horizontal braces.

The base is complete

STABILISERS When specified, the correct stabilisers or outriggers must always be used. See component checklist on Page 16/ 17. When using standard stabilisers, fit them now. To attach the stabiliser, fit the upper screw clamp to frame upright, approx.50mm above the seventh rung (from ground) as shown above, then fit the lower screw clamp as low as possible to the frame upright. Set each stabiliser at 45° creating as large a footprint as possible and ensure that they are in firm contact with the ground. Note It may be advantageous to ensure that stabilisers are fitted from frame side as shown. Large Stabilisers can only be fitted after upper frame has been placed. If repositioning stabilisers when in position then screw clamps MUST be loosened prior to movement then re– fixed.

18

10. Place a trapdoor platform at 2m level (8 rungs from ground) and set to one side of tower. Note The trapdoor platform hinge to be set to inside of tower (temporary only to assist in assembling tower).

11. Operative should then climb through the trap and rest against the platform (just below base of back) with feet firmly placed on frame rungs (as shown).

12. Fit horizontal braces to both sides of platform at 2nd and 4th rungs above platform level to form guardrail protection to single platform only. It is safe to use the platform when horizontal braces have been locked and secured in place.

13. Add two more 8 rung frames on top of the existing frames. 14. Attach two diagonal braces from lower frame to upper frame in accordance with bracing pattern. 15. Attach two more diagonal braces from 1st rung to 5th rung of upper frames. 16. Place fixed platform initially at 4m level and slide across to opposite side of tower (as shown) from where operative is standing below then place trapdoor platform ensuring that trap is placed at opposing side to trap on platform below. Note Ensure that the trapdoor hinge is to the outside edge.

19

17. Repeat step 11 above and climb through the trap. 18. Fit horizontal braces to both sides of platform at 2nd and 4th rungs above platform level to form permanent handrail. It is safe to use the platform once horizontal braces are locked and secured in place. Repeat steps 10 to 18 until desired height has been reached (max. height 8m outdoors and 12 m indoors).

DISMANTLING THE TOWER The following instructions describe the steps necessary to dismantle the OCTO 250 tower utilising the 3T method. For your safety and that of others, take particular care not to allow components to fall to the ground since this will not only result in damage but may cause serious injury. 1.

At top platform level unlock horizontal braces and diagonal brace at furthest positions from the trap before descending through the trap. As before, rest against the platform (just below base of back) with feet firmly placed on frame rungs.

2.

Remove horizontal braces and pass down to operatives below.

3.

Unlock diagonal brace at top platform level.

4.

Descend to platform level below and remove top platform.

5.

Standing on platform, unlock diagonal braces fixed at upper frames then remove diagonal braces completely.

6.

Remove upper frames.

Repeat steps 1 to 6 until dismantle process is complete.

20

ODD HEIGHT TOWERS – 3T Method 1.

Fit four legs and castors (or base plates) to two 8 rung span frames (see illustration). Turn the height adjustment collar on each leg until approximately 100mm from the lower end. Insert each leg until the collar is in contact with the frame’s tubing.

2.

Set each castor brake on by moving the brake lever fully down.

3.

With each frame’s spigot facing inward, attach two horizontals to the upright of each frame, above the first rung and square the two frames to each other.

Note It may be advantageous to place a platform at low level to assist in “squaring” tower. 4.

With the aid of a spirit level, you should now make any necessary adjustments to level the tower by turning the adjustment collar.

5.

Attach two diagonal braces to the bottom rung of each base frame, with one brace being placed so the brace hook is as far to the outer edge as possible, the other brace hook should be placed at least 50mm (one tube width) from outer edge.

6.

Then attach the other end of both braces to the fifth rung on the opposing 2m frame.

7.

Fit stabilisers (see Stabilisers section; page 18)

8.

Place a trapdoor platform at 1m level (4 rungs from ground) and set to one side of tower. Note The trapdoor platform hinge to be set to inside of tower (temporary only to assist in assembling tower).

This platform may be used temporarily to assist in the erection of the tower.

21

9. Operative should then climb through the trap and rest against the platform (just below base of back) with feet firmly placed on frame rungs (as shown).

10. Fit horizontal braces to both sides of platform at 2nd and 4th rungs above platform level to form guardrail protection to single platform only. It is safe to use the platform when horizontal braces have been locked and secured in place. 11. Add two more 8 rung frames on top of the existing frames. 12. Attach two diagonal braces from lower frame to upper frame in accordance with bracing pattern. 13. Attach two more diagonal braces from 1st rung to 5th rung of upper frames. 14. Place fixed platform initially at 3m level and slide across to opposite side of tower (as shown) from where operative is standing below then place trapdoor platform ensuring that trap is placed at opposing side to trap on platform below. Note Ensure that the trapdoor hinge is to the outside edge.

15. Repeat step 9 above and climb through the trap. 16. Fit horizontal braces to both sides of platform at 2nd and 4th rungs above platform level to form permanent handrail. It is safe to use the platform once horizontal braces are locked and secured in place. Repeat steps 11 to 16 until desired height has been reached (max. height 8m outdoors and 12 m indoors). 22

DISMANTLING THE TOWER 1.

At top platform level unlock horizontal braces and diagonal brace at furthest positions from the trap before descending through the trap. As before, rest against the platform (just below base of back) with feet firmly placed on frame rungs.

2.

Remove horizontal braces and pass down to operatives below.

3.

Descend to platform level below and remove top platform

4.

Remove diagonal braces fixed to upper frames.

5.

Remove upper frames.

Repeat steps 1 to 5 until dismantle process is complete.

TRAINING These instructions do not take the place of proper training. Consult your supplier for details of specific training courses for users of mobile access towers. TOEBOARDS

Whichever position the working platform is assembled toeboards must be fitted. Slot the toeboard set together and position on the outer edge of the platform. The toeboards are designed so that the side boards overhang the platform and the end boards are retained by raised studs on the platform hooks (see illustration).

Note If using one piece folding toeboards then select correct toeboard for the desired tower, unfold and fit in place, retained by raised studs on the platform hooks (as above).

23

For Technical advice (or further information) on OCTO 250 Series Towers, please contact: Turner Access Ltd, 65 Craigton Road, Glasgow, G51 3EQ Tel: +44 (0) 141 309 5555 Fax: +44 (0) 141 309 5436 Email: [email protected]

24

Incorporating the use of Advanced Guardrail and 3T methods of assembly

SHALLOW BRACE

INSTRUCTION MANUAL

Issued January 2008

MOBILE ACCESS TOWER

INTRODUCTION This instruction manual contains all the information required to correctly assemble the OCTO 500 shallow brace mobile access tower incorporating the two PASMA (Prefabricated Access Suppliers’ and Manufacturers Association) approved methods of assembly as endorsed by the Health and Safety Executive. The primary method of safe assembly is the incorporation of Advanced Guardrail protection (PlusGard™) to provide collective measures enabling full compliance with the Work at Height Regulations 2005. The provision and utilisation of Advanced guardrail protection is recommended for all operatives erecting OCTO 500 Mobile Access Towers. This Manual should be used in conjunction with a suitable Risk Assessment and Method Statement (by user) relative to the project to be undertaken, Work at Height Regulations 2005, Regulation 6(1). It must be noted that all employers have a responsibility to ensure that work methods (practices) and adequate facilities/ resources (including work equipment) are provided to eliminate or minimise risks, Work at Height Regulations 2005, Regulations 6, 7, 8 and Schedule 3 Part 2. Please ensure you read and fully understand the manual. Follow the content during assembly and ensure that the tower is complete prior to use. This manual must be made available to the user/ assembler at all times. Whilst the initial section of this manual is dedicated to the preferred method of assembly by using PlusGard™ and thereby complying with the Work at Height Regulations 2005, a secondary method (3T) is also included within this Manual. However, with the availability of PlusGard™ the user/ duty holder may find justification of this option difficult in relation to compliance with The Work at Height Regulations 2005. Sufficient training, combined with necessary experience, must also be considered and be appropriate to achieve competency to undertake basic mobile access tower assembly. Only competent (and qualified) personnel should undertake erection, dismantling and alteration (and organisation, planning and supervision) of basic mobile access towers, Regulation 5, the Work at Height Regulations 2005 and consideration should be given to providing additional (minimum) training beforehand, if required (Regulation 6 (5)(b)). GENERAL SAFETY NOTES 1.

Ensure that all necessary components and safety equipment (including PlusGard™ components) are available and operational.

2.

Inspect the tower and PlusGard™ components for signs of damage or incorrect functioning prior to use. Damaged or incorrect components must not be used. Castors and adjustable legs should be periodically lubricated to keep them free running.

3.

Erect Exclusion zone and fit Warning Signs to comply with Schedule 3 Part 2 (11), Work at Height Regulations 2005. 2

4.

Ensure the scaffolding is to be erected on suitable foundations capable of withstanding the loads imposed by the scaffolding (Schedule 3 Part 1(2) of Work at Height Regulations 2005) and, where appropriate, adequate sole boards to be provided.

5.

It is recommended that at least two people assemble the tower.

6.

OCTO 500 towers MUST ALWAYS be climbed from the inside, climbing the ladders only.

7.

When lifting components or materials, always use reliable lifting material and tying methods to ensure there is no possibility of the tower overturning. Always lift from within the tower base.

8.

Mobile access towers must only be moved manually, by pushing at the base. Ensure that the platforms are free of persons and equipment and that brake locks are off prior to movement. Beware of soft or uneven ground and overhead obstructions. The tower height must be reduced to 4m high and stabilisers raised approx 25mm clear of the ground. On completing the move apply all brakes and check adjustment and stability prior to completion of tower to full assembled height.

Note Tower height must be reduced to 2m high prior to any moves if less than 4 stabilisers are used. 9.

Always inspect the tower after moving and before use.

10. Always beware of live electrical apparatus, cables or moving parts of machinery. 11. Care should be taken when using power tools, wash jets or other tools that cause lateral force. The maximum lateral force on a freestanding tower at platform level is 20kg. 12. DO NOT use boxes, ladders or other such means to gain additional height. 13. Never bridge between a tower and a building unless specification and approved. 14. Never jump onto platforms. 15. Do not use hoisting arrangements on a mobile access tower. 16. Fit side guardrails at all platforms. 17. Fit toeboards on all working platforms. 18. Fit intermediate rest platforms at 4m intervals (maximum). 19. Mobile access towers are not designed to allow them to be lifted or suspended. 20. PlusGard™ is personal protection equipment only and should not be used in any other way. 21. In accordance with regulations any tower that has been erected must be inspected every 7 days (minimum) to ensure that the tower continues to comply with the regulations. WIND SPEED SAFETY RULES Where possible, tie in the tower to a rigid structure when working outdoors or in exposed conditions. Beware of the funnelling effect of open ended and uncladded buildings. 3

Beaufort Scale 0-4 5-6 >6

Air Speed 13-18 mph 25-31 mph

Description Moderate Breeze Small branches move Strong Breeze Large branches bend Walking progress impeded

34-40 mph

Action No action required Tie tower to a rigid structure Dismantle tower if such conditions are expected

STABILISERS Stabilisers should be attached at about 45° as shown, so that A is roughly equal to B, and forms the largest possible square. If this is not possible, e.g. façade work, use the alternative methods illustrated.

MAXIMUM LOAD The maximum platform load is 225 Kg/ platform evenly distributed, 625 Kg for total tower. A maximum of 3 platforms may be loaded. BRACES All braces are fitted with self-priming triggers that automatically lock when attached to the tower. Attach braces square to the tower and remove by releasing the trigger. When attaching diagonal braces and handrails the braces face down. PLUSGARD™ PlusGard™ is an additional advanced guardrail that provides fall prevention for the erector throughout tower erection and dismantling. PlusGard™ consists of verticals (mounted on the tower uprights) and telescopic guardrails*. The vertical’s locking device can be operated from above or below and can either be locked in the closed or open configurations. The locking procedures for both configurations are as follows: 4

The attachment hooks are closed and locked when the locking pistons do not project from the back face of the attachment hooks (circled). Turn and pull the upper control handle (or turn and push the lower control handle), as shown adjacent. The attachment hooks are now locked in the

open position and the locking piston projects

out from the back face of the attachment hook (circled). It is now easy to reposition the vertical. When the vertical is in place, turn and push the upper control handle (or turn and pull the lower control handle) as shown adjacent. The attachment hooks are now closed and locked. Always ensure that the locking piston does not project from the back face of the attachment hook (circled). Even the slightest projection indicates that it is not properly secured.

When erecting a mobile access tower, PlusGard™ is assembled at ground level. It is then moved upwards, a lift at a time, after the tower’s integral guardrails have been installed. When dismantling, PlusGard is attached at the top lift and moved down as the tower is dismantled. Each move is made from the lift below before the tower’s integral guardrails have been removed.

* How to choose the telescopic guardrails Both the scaffold’s tower width and lift height will influence the choice of telescopic guardrail. It is preferable to choose guardrails that can be moved up or down in one step. Should the choice of telescopic guardrails be limited and the available guardrail does not extend to the required diagonal distance then the following solution should be adopted: Move initial vertical half the distance it is required to travel, ie 1m, then move the adjacent vertical to the correct height (2m). Move the initial vertical to the correct height (2- step moving). Repeat as necessary until all telescopic guardrails are at the required position.

NARROW WIDTH TOWERS Narrow width towers are assembled following the same steps as explained for span towers, except that all platforms are trapdoor platforms ensuring that successive trapdoors are at opposing ends of tower.

5

COMPONENT BREAKDOWN CHARTS (PlusGard™ method) COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 500 SPAN

2

3

4

5

6

7

8

9

10

11

12

4R Span Frame

1

2

2

3

3

4

4

5

5

6

6

2R Span Frame

1

0

1

0

1

0

1

0

1

0

1

4R Span Ladder Frame

1

2

2

3

3

4

4

5

5

6

6

2R Span Ladder Frame

1

0

1

0

1

0

1

0

1

0

1

Horizontal Brace

6

6

6

10

10

10

10

14

14

14

14

4

6

8

10

12

14

16

18

20

22

24

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Adjustable Leg

4

4

4

4

4

4

4

4

4

4

4

Castor

4

4

4

4

4

4

4

4

4

4

4

Fixed Platform

1

1

1

2

2

2

2

3

3

3

3

Trapdoor Platform

1

1

1

2

2

2

2

3

3

3

3

Stabiliser Std. (Indoor use)

4

4

4

4

4

4

4

0

0

0

0

Stabiliser Std. (Outdoor use)

4

4

4

4

4

0

0









Stabiliser Large (Indoor use)

0

0

0

0

0

0

0

4

4

4

4

Stabiliser Large (Outdoor use)

0

0

0

0

0

4

4









Total tower self weight (Kg) - 1.5m

116

132

148

194

209

225

241

298

314

330

346

Total tower self weight (Kg) - 2.5m

139

157

175

237

255

273

290

364

381

399

416

Total tower self weight (Kg) - 3.2m

156

175

193

268

286

304

322

408

426

444

463

Diagonal Brace Toeboard (End)*

c

Toeboard (Side)*

c

• Do not use tower unless tied in * For one working platform only (additional platforms to be factored accordingly) c For folding toeboards: 1 per working platform

Additional kit required during Assembly and Dismantle operations (Span) PLATFORM HEIGHT IN METRES

COMPONENTS OCTO 500 SPAN

2

3

4

5

6

7

8

9

10

11

12

Horizontal Brace

0

0

4

0

4

4

8

4

8

8

12

Fixed Platform

0

1

1

0

0

1

1

1

1

2

2

Trapdoor Platform

0

1

1

0

0

1

1

1

1

2

2

Plusgard Vertical

4

4

4

4

4

4

4

4

4

4

4

Telescopic Guardrail

4

4

4

4

4

4

4

4

4

4

4

Weight of Additional kit (Kg) - 1.5m

33

57

64

33

40

64

70

64

70

94

100

Weight of Additional kit (Kg) - 2.5m

34

71

79

34

42

79

87

79

87

124

132

Weight of Additional kit (Kg) - 3.2m

39

84

96

39

51

96

108

96

108

152

164

Note Weight of Additional kit required during assembly and dismantle operations has not been factored into total tower self weight calculations.

6

COMPONENT BREAKDOWN CHARTS (PlusGard™ method)

COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 500 N/W

2

3

4

5

6

7

8

9

10

11

12

4R N/W Frame

1

2

2

3

3

4

4

5

5

6

6

2R N/W Frame

1

0

1

0

1

0

1

0

1

0

1

4R N/W Ladder Frame

1

2

2

3

3

4

4

5

5

6

6

2R N/W Ladder Frame

1

0

1

0

1

0

1

0

1

0

1

Horizontal Brace

6

6

6

10

10

10

10

14

14

14

14

4

6

8

10

12

14

16

18

20

22

24

Toeboard (End)*

2

2

2

2

2

2

2

2

2

2

2

Toeboard (Side)* c

2

2

2

2

2

2

2

2

2

2

2

Adjustable Leg

4

4

4

4

4

4

4

4

4

4

4

Castor

4

4

4

4

4

4

4

4

4

4

4

Trapdoor Platform

1

1

1

2

2

2

2

3

3

3

3

Stabiliser Std. (Indoor use)

4

4

4

4

4

4

4

0

0

0

0

Stabiliser Std. (Outdoor use)

4

4

4

4

4

0

0









Stabiliser Large (Indoor use)

0

0

0

0

0

0

0

4

4

4

4

Stabiliser Large (Outdoor use)

0

0

0

0

0

4

4









Total tower self weight (Kg) - 1.5m

99

112

127

159

173

187

202

244

259

272

287

Total tower self weight (Kg) - 2.5m

116

131

148

190

206

221

238

290

307

322

339

Total tower self weight (Kg) - 3.2m

129

145

162

213

230

245

263

324

341

357

374

Diagonal Brace c

• Do not use tower unless tied in * For one working platform only (additional platforms to be factored accordingly) c For folding toeboards: 1 per working platform

Additional kit required during Assembly and Dismantle operations (Narrow Width) COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 250 N/W

2

3

4

5

6

7

8

9

10

11

12

Horizontal Brace

0

0

4

0

4

4

8

4

8

8

12

Trapdoor Platform

0

1

1

0

0

1

1

1

1

2

2

Plusgard Vertical

4

4

4

4

4

4

4

4

4

4

4

Telescopic Guardrail

4

4

4

4

4

4

4

4

4

4

4

Weight of Additional kit (Kg) - 1.5m

33

45

52

33

40

52

58

52

58

70

76

Weight of Additional kit (Kg) - 1.5m

34

53

61

34

42

61

69

61

69

88

96

Weight of Additional kit (Kg) - 1.5m

39

62

74

39

51

74

86

74

86

108

120

Note Weight of Additional kit required during assembly and dismantle operations has not been factored into total tower self weight calculations.

7

DAILY CHECKS The tower must be checked on a daily basis and after any significant weather changes e.g. high winds, snow, frost. Use the checklist prior to use.

below

Tower is vertical and square Braces correctly fitted and secure Castors locked/ legs correctly adjusted All castors, base plates and stabilisers are in contact with the ground Toeboards located Correct stabilisers fitted, adjusted and secure Hand rails fitted and secure

Folding Toeboard

If a box has not been ticked, do not use the tower until the fault is rectified. Where a fault is found, access to the tower must be stopped.

KEY to Table a) b) c) d) e) f)

8

Adjustable over a distance of 500mm 200mm wheel diameter 125mm wheel diameter Telescopic from 2.30m to 3.66m Telescopic from 2.07m to 3.07m Telescopic from 1.25m to 2.50m

THE BASE SECTION 1.

Fit two legs and castors (or base plates) to one 4 rung span frame (see illustration) and two legs and castors to one 4 rung ladder frame. Turn the height adjustment collar on each leg until approximately 100mm from the lower end. Insert each leg until the collar is in contact with the frame’s tubing.

2.

Set each castor brake on by moving the brake lever fully down.

3.

With each frame’s spigot facing inward, attach two horizontals to the upright of each frame, below the first rung and square the two frames to each other.

Note It may be advantageous to place a platform at low level to assist in “squaring” tower. 4.

5.

With the aid of a spirit level, you should now make any necessary adjustments to level the tower by turning the adjustment collar. Attach two diagonal braces to the bottom rung of each base frame, with one brace being placed so the brace hook is as far to the outer edge as possible, the other brace hook should be placed at least 50mm (one tube width) from outer edge. Then attach the other end of both braces to the 3rd rung on the opposing 2m frame.

The base is complete.

STABILISERS When specified, the correct stabilisers or outriggers must always be used. See component checklist on Pages 6/ 7. When using standard stabilisers, fit them now.

9

To attach the stabiliser, fit the upper screw clamp to frame upright approx. 50mm above 3rd rung (from ground), then fit the lower screw clamp as low as possible to the frame upright.

Set each stabiliser at 45° creating as large a footprint as possible and ensure that they are in firm contact with the ground. Notes It may be advantageous to ensure that stabilisers are fitted from frame side as shown. Large Stabilisers can only be fitted after upper frame has been placed.

If repositioning stabilisers when in position then screw clamps MUST be loosened prior to movement then re– fixed.

ASSEMBLING UPPER FRAMES PlusGard™ Vertical

1.

Ensuring PlusGard™ attachment hooks are locked in the open position, attach the PlusGard™ vertical to the tower upright at the lowest possible location (adjustable leg) and close the attachment hooks using either the lower or upper control handles.

2.

Repeat Step 1 for remaining tower uprights.

3.

Attach the telescopic guardrail components by mounting the outer tube end into the guardrail holder ensuring that the spring-loaded locking device on the end attachment is securely locked in the guardrail holder.

Upper Control Handle

Guardrail holder (height adjustable)

Telescopic Guardrail Attachment hooks

End Attachment 4. Lower Control Handle

Transport Lock

Release the inner tube end by pressing the transport locking pin on the underside of the tube and pull out the inner tube to the required length. Mount the inner tube end into the opposing vertical guardrail holder and check that the springloaded locking device on the end attachment is securely locked in position. 10

Repeat steps 3 & 4 for remaining telescopic guardrails. 5.

Raise PlusGard™ verticals into a position where the upper telescopic guardrail is one metre above the platform level by releasing the attachment hooks (using either the lower or upper control handles) and lock in the open position.

6.

Lift the verticals, in turn, and attach at the appropriate height. Lock and secure the attachment hooks and turn verticals inward to face of tower (platform) to minimise gap.

7.

Place a trapdoor platform and fixed platform to 1m level (2 rungs) ensuring that the trapdoor hinge is to the outside edge. Note This platform is used temporarily to assist in the erection of the tower.

8.

Add two 1m (2 Rung) frames on top of the existing frames, ensuring that ladder frame is positioned as frame below.

9.

Attach two diagonal braces from 3rd rung of lower frame and attach to 1st rung of opposing 1m (2 rung) frame in accordance with bracing pattern.

10. Fit horizontal braces (both sides) to 1st rung of 1m frame to form permanent lower handrail to 1st lift platform level. 11. Remove platforms from 1m level.

12. Raise PlusGard™ verticals into a position where the upper telescopic guardrail is one metre above the first lift platform level by releasing the attachment hooks (using either the lower or upper control handles) and lock in the open position. 13. Lift PlusGard™ verticals, in turn, and attach at the appropriate height. Lock and secure the attachment hooks and turn verticals inward to face of tower (platform) to minimise gap. 11

14. Place trapdoor platform and fixed platform to first lift platform level (4 rungs) ensuring that the trapdoor hinge is to the outside edge. 15. Attach Horizontal braces (both sides) to top rung of 1m frame to form permanent guardrail to 1st lift platform level. Horizontal braces should be set at outer edge to one side of the tower and one tube width (50mm) from outer edge to other side.

16. Add two more 4 Rung frames on top of the existing frames ensuring that ladder frame is positioned as frame below. 17. Attach two diagonal braces from lower frame to upper frame in accordance with bracing pattern. 18. Attach a diagonal accordance pattern.

further two braces in with brace

19. Repeat steps 12 & 13 to raise PlusGard™ into a position where the upper telescopic guardrail is one metre above the second platform level. 20. Place a trapdoor platform and fixed platform to second lift platform level ensuring that trap is positioned to suit ladder. 21. Attach horizontal braces (both sides) at 1st rung and 2nd rung above platform to form permanent guardrail. Horizontal braces should be set at outer edge to one side of the tower and one tube width (50mm) from outer edge to other side. Repeat steps 16 to 21 as necessary until desired height is reached (max. height 8m outdoors and 12m indoors). 22. Upon completion of the tower, disassemble PlusGard™ (at the top) in the opposite order to the assembly (steps 1 to 5).ie. detach telescopic guardrails by releasing the inner tube ensuring that the transport locking pin on the underside of the tube is properly engaged. 23. Detach the outer tube end and thereafter remove the PlusGard™ verticals. The tower is complete. 12

ODD HEIGHT TOWERS 1.

Fit two legs and castors (or base plates) to one 4 rung span frame (see illustration) and two legs and castors to one 4 rung ladder frame. Turn the height adjustment collar on each leg until approximately 100mm from the lower end. Insert each leg until the collar is in contact with the frame’s tubing.

2.

Set each castor brake on by moving the brake lever fully down.

3.

With each frame’s spigot facing inward, attach two horizontals to the upright of each frame, below the first rung and square the two frames to each other. Note It may be advantageous to place a platform at low level to assist in “squaring” tower.

4.

With the aid of a spirit level, you should now make any necessary adjustments to level the tower by turning the adjustment collar.

5.

Attach two diagonal braces to the bottom rung of each base frame, with one brace being placed so the brace hook is as far to the outer edge as possible, the other brace hook should be placed at least 50mm (one tube width) from outer edge.

6.

Then attach the other end of both braces to the 3rd rung on the opposing 2m frame.

7.

Fit stabilisers (see Stabilisers section; page 9).

8.

Ensuring advance guardrail (PlusGard™) attachment hooks are locked in the open position, attach the PlusGard™vertical to the tower upright at the lowest possible location (adjustable leg) and close the attachment hooks using either the lower or upper control handles.

Repeat Step 8 for remaining tower uprights.

13

9.

Attach the telescopic guardrail components by mounting the outer tube end into the guardrail holder ensuring that the spring-loaded locking device on the end attachment is securely locked in the guardrail holder.

10. Release the inner tube end by pressing the transport locking pin on the underside of the tube and pull out the inner tube to the required length. Mount the inner tube end into the opposing vertical guardrail holder and check that the spring-loaded locking device on the end attachment is securely locked in position. Repeat steps 9 & 10 for remaining telescopic guardrails. 11. Raise PlusGard™ verticals into a position where the upper telescopic guardrail is one metre above the platform level by releasing the attachment hooks (using either the lower or upper control handles) and lock in the open position. 12. Lift the verticals, in turn, and attach at the appropriate height. Lock and secure the attachment hooks and turn verticals inward to face of tower (platform) to minimise gap.

13. Place a trapdoor platform and fixed platform to 1m level (2 rungs) ensuring that the trapdoor hinge is to the outside edge. Note This platform is used temporarily to assist in the erection of the tower. 14. Add two 2m (4 Rung) frames on top of the existing frames ensuring that ladder frame is positioned as frame below.

15. Attach two diagonal braces from 3rd rung of lower frame and attach to 1st rung of opposing 2m (4 rung) frame in accordance with bracing pattern. 16. Attach two more diagonal braces in accordance with brace pattern. 17. Attach horizontal braces (both sides) at 1st rung and 2nd rung above platform to form permanent guardrail. Horizontal braces should be set at outer edge to one side of the tower and one tube width (50mm) from outer edge to other side. 14

18. Repeat steps 11 & 12 to raise PlusGard™ into a position where the upper telescopic guardrail is one metre above the second platform level. 19. Place a trapdoor platform and fixed platform to second lift platform level ensuring that trap is positioned to suit ladder.

Repeat steps 14 to 19 as necessary until desired height is attained (max. height 8m outdoors and 12 m indoors). 22. Upon completion of the tower, disassemble PlusGard™ (at the top) in the opposite order to the assembly (steps 1 to 5).ie. detach telescopic guardrails by releasing the inner tube ensuring that the transport locking pin on the underside of the tube is properly engaged. 23. Detach the outer thereafter remove verticals.

tube end and the PlusGard™

The tower is complete.

DISMANTLING THE TOWER The dismantling procedure is simply a reversal of the steps explained for the assembly. For your safety and that of others, take particular care not to allow components to fall to the ground since this will not only result in damage but may cause serious injury. TRAINING These instructions do not take the place of proper training. Consult your supplier for details of specific training courses for users of mobile access towers. 15

THE 3T METHOD OF ASSEMBLY Whilst our recommended method of assembly to fully comply with the Work at Height Regulations 2005, is by using Advanced Guardrails (PlusGard™), a secondary method has also been approved and endorsed by both PASMA and the HSE. This method is known as the 3T method (Through The Trap). NARROW WIDTH TOWERS Narrow width towers are assembled following the same steps as explained for span towers, except that all platforms are trapdoor platforms ensuring that successive trapdoors are at opposing ends of tower. COMPONENT BREAKDOWN CHARTS (3T Method - Span) COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 500 SPAN

2

3

4

5

6

7

8

9

10

11

12

4R Span Frame

1

2

2

3

3

4

4

5

5

6

6

2R Span Frame

1

0

1

0

1

0

1

0

1

0

1

4R Span Ladder Frame

1

2

2

3

3

4

4

5

5

6

6

2R Span Ladder Frame

1

0

1

0

1

0

1

0

1

0

1

Horizontal Brace

6

6

6

10

10

10

10

14

14

14

14

4

6

8

10

12

14

16

18

20

22

24

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Adjustable Leg

4

4

4

4

4

4

4

4

4

4

4

Castor

4

4

4

4

4

4

4

4

4

4

4

Fixed Platform

1

1

1

1

1

1

1

1

1

1

1

Trapdoor Platform

1

1

1

2

2

2

2

3

3

3

3

Stabiliser Std. (Indoor use)

4

4

4

4

4

4

4

0

0

0

0

Stabiliser Std. (Outdoor use)

4

4

4

4

4

0

0









Stabiliser Large (Indoor use)

0

0

0

0

0

0

0

4

4

4

4

Stabiliser Large (Outdoor use)

0

0

0

0

0

4

4









Total tower self weight (Kg) - 1.5m

116

132

148

182

198

214

229

274

290

306

322

Total tower self weight (Kg) - 2.5m

139

157

175

219

237

254

272

327

345

362

380

Total tower self weight (Kg) - 3.2m

156

175

193

246

264

282

300

364

382

401

419

Diagonal Brace Toeboard (End)*

c

Toeboard (Side)*

c

• Do not use tower unless tied in * For one working platform only (additional platforms to be factored accordingly) c For folding toeboards: 1 per working platform

Additional kit required during Assembly and Dismantle operations (Span) COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 500 SPAN

2

3

4

5

6

7

8

9

10

11

12

Horizontal Brace

0

0

4

0

0

4

4

4

4

8

8

Trapdoor Platform

0

1

1

0

0

1

1

1

1

2

2

Weight of Additional kit (Kg) - 1.5m

0

12

19

0

0

19

19

19

19

37

37

Weight of Additional kit (Kg) - 1.5m

0

19

27

0

0

27

27

27

27

54

54

Weight of Additional kit (Kg) - 1.5m

0

23

35

0

0

35

35

35

35

69

69

Note Weight of Additional kit required during assembly and dismantle operations has not been factored into total tower self weight calculations.

16

COMPONENT BREAKDOWN CHARTS (3T Method – Narrow Width) COMPONENTS

PLATFORM HEIGHT IN METRES

OCTO 500 N/W

2

3

4

5

6

7

8

9

10

11

12

4R N/W Frame 2R N/W Frame

1 1

2 0

2 1

3 0

3 1

4 0

4 1

5 0

5 1

6 0

6 1

4R N/W Ladder Frame

1

2

2

3

3

4

4

5

5

6

6

2R N/W Ladder Frame

1

0

1

0

1

0

1

0

1

0

1

Horizontal Brace

6

6

6

10

10

10

10

14

14

14

14

4

6

8

10

12

14

16

18

20

22

24

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

Adjustable Leg

4

4

4

4

4

4

4

4

4

4

4

Castor

4

4

4

4

4

4

4

4

4

4

4

Trapdoor Platform

1

1

1

2

2

2

2

3

3

3

3

Stabiliser Std. (Indoor use)

4

4

4

4

4

4

4

0

0

0

0

Stabiliser Std. (Outdoor use)

4

4

4

4

4

0

0









Stabiliser Large (Indoor use)

0

0

0

0

0

0

0

4

4

4

4

Stabiliser Large (Outdoor use)

0

0

0

0

0

4

4









Total tower self weight (Kg) - 1.5m

99

113

127

159

174

187

202

244

259

273

287

Total tower self weight (Kg) - 2.5m

116

132

148

190

207

222

238

291

307

323

339

Total tower self weight (Kg) - 3.2m

130

145

163

213

230

246

263

324

341

357

374

Diagonal Brace Toeboard (End)*

c

Toeboard (Side)*

c

• Do not use tower unless tied in * For one working platform only (additional platforms to be factored accordingly) c For folding toeboards: 1 per working platform

Additional kit required during Assembly and Dismantle operations (N/W) PLATFORM HEIGHT IN METRES

COMPONENTS OCTO 500 N/W

2

3

4

5

6

7

8

9

10

11

12

Horizontal Brace Trapdoor Platform

0 0

0 1

4 1

0 0

0 0

4 1

4 1

4 1

4 1

8 2

8 2

Weight of Additional kit (Kg) - 1.5m

0

12

19

0

0

19

19

19

19

37

37

Weight of Additional kit (Kg) - 1.5m

0

19

27

0

0

27

27

27

27

54

54

Weight of Additional kit (Kg) - 1.5m

0

23

35

0

0

35

35

35

35

69

69

Note Weight of Additional kit required during assembly and dismantle operations has not been factored into total tower self weight calculations.

THE BASE SECTION 1.

Fit two legs and castors (or base plates) to one 2 rung span frame (see illustration) and two legs and castors to one 2 rung ladder frame. Turn the height adjustment collar on each leg until approximately 100mm from the lower end. Insert each leg until the collar is in contact with the frame’s tubing.

2.

Set each castor brake on by moving the brake lever fully down.

17

3.

With each frame’s spigot facing inward, attach two horizontals to the upright of each frame, below the first rung and square the two frames to each other. Note It may be advantageous to place a platform at low level to assist in “squaring” tower.

4.

With the aid of a spirit level, you should now make any necessary adjustments to level the tower by turning the adjustment collar.

5.

Attach two temporary horizontal braces to 2nd rung of frame.

6.

Add one 2m (4Rung) frame and one 2m ladder frame on top of base (1m) frames.

7.

Attach two diagonal braces to the bottom rung of each base frame, with one brace being placed so the brace hook is as far to the outer edge as possible, the other brace hook should be placed at least 50mm (one tube width) from outer edge. Then attach the other end of both braces to the bottom rung on the opposing 2m frame.

8.

Attach two more diagonal braces (in accordance with brace pattern) from 1st rung to 3rd rung of upper frame.

9.

Remove temporary horizontal braces.

The base is complete STABILISERS When specified, the correct stabilisers or outriggers must always be used. See component checklist on Page 16/ 17. When using standard stabilisers, fit them now. To attach the stabiliser, fit the upper screw clamp to frame upright approx. 50mm above the 3rd rung (from ground), as shown above, then fit the lower screw clamp as low as possible to the frame upright. Set each stabiliser at 45° creating as large a footprint as possible and ensure that they are in firm contact with the ground. Note It may be advantageous to ensure that stabilisers are fitted from frame side as shown. Large Stabilisers can only be fitted after upper frame has been placed. If repositioning stabilisers when in position then screw clamps MUST be loosened prior to movement then re– fixed.

18

10. Place a trapdoor platform at 2m level (4 rungs from ground) and set to one side of tower. Note The trapdoor platform hinge to be set to inside of tower (temporary only to assist in assembling tower).

11. Operative should then climb through the trap and rest against the platform (just below base of back) with feet firmly placed on frame rungs (as shown).

12. Fit horizontal braces to both sides of platform at 1st and 2nd rungs above platform level to form guardrail protection to single platform only. Note It is safe to use the platform when horizontal braces have been locked and secured in place.

13. Add two more 4 rung frames on top of the existing frames. 14. Attach two diagonal braces from lower frame to upper frame in accordance with bracing pattern. 15. Attach two more diagonal braces from 1st rung to 3rd rung of upper frames. 16. Place fixed platform initially at 4m level (diagonally) and slide across to opposite side of tower (as shown) from where operative is standing below then place trapdoor platform ensuring that trap is placed at opposing side to trap on platform below. Note Ensure that the trapdoor hinge is to the outside edge.

19

17. Repeat step 11 and climb through the trap. 18. Fit horizontal braces to both sides of platform at 1st and 3rd rungs above platform level to form permanent handrail. It is safe to use the platform once horizontal braces are locked and secured in place.

Repeat steps 13 to 18 until desired height has been reached (max. height 8m outdoors and 12 m indoors).

DISMANTLING THE TOWER The following instructions describe the steps necessary to dismantle the OCTO 500 tower utilising the 3T method. For your safety and that of others, take particular care not to allow components to fall to the ground since this will not only result in damage but may cause serious injury. 1.

At top platform level unlock horizontal braces and diagonal brace at furthest positions from the trap before descending through the trap. As before, rest against the platform (just below base of back) with feet firmly placed on frame rungs.

2.

Remove horizontal braces and pass down to operatives below.

3.

Unlock diagonal brace at top platform level.

4.

Descend to platform level below and remove top platform.

5.

Standing on platform, unlock diagonal braces fixed at upper frames then remove diagonal braces completely.

6.

Remove upper frames.

Repeat steps 1 to 6 until dismantle process is complete.

20

ODD HEIGHT TOWERS – 3T Method 1.

Fit two legs and castors (or base plates) to one 4 rung span frame (see illustration) and two legs and castors to one 4 rung ladder frame. Turn the height adjustment collar on each leg until approximately 100mm from the lower end. Insert each leg until the collar is in contact with the frame’s tubing.

2.

Set each castor brake on by moving the brake lever fully down.

3.

With each frame’s spigot facing inward, attach two horizontals to the upright of each frame, above the first rung and square the two frames to each other.

Note It may be advantageous to place a platform at low level to assist in “squaring” tower. 4.

With the aid of a spirit level, you should now make any necessary adjustments to level the tower by turning the adjustment collar.

5.

Attach two diagonal braces to the bottom rung of each base frame, with one brace being placed so the brace hook is as far to the outer edge as possible, the other brace hook should be placed at least 50mm (one tube width) from outer edge.

6.

Then attach the other end of both braces to the third rung on the opposing 2m frame.

7.

Fit stabilisers (see Stabilisers section; page 18)

8.

Place a trapdoor platform at 1m level (2 rungs from ground) and set to one side of tower. Note The trapdoor platform hinge to be set to inside of tower (temporary only to assist in assembling tower).

This platform may be used temporarily to assist in the erection of the tower.

21

9. Operative should then climb through the trap and rest against the platform (just below base of back) with feet firmly placed on frame rungs (as shown).

10. Fit horizontal braces to both sides of platform at 1st and 2nd rungs above platform level to form guardrail protection to single platform only. It is safe to use the platform when horizontal braces have been locked and secured in place. 11. Add two more 4 rung frames on top of the existing frames. 12. Attach two diagonal braces from lower frame to upper frame in accordance with bracing pattern. 13. Attach two more diagonal braces from 1st rung to 3rd rung of upper frames. 14. Place fixed platform initially at 3m level and slide across to opposite side of tower (as shown) from where operative is standing below then place trapdoor platform ensuring that trap is placed at opposing side to trap on platform below. Note Ensure that the trapdoor hinge is to the outside edge.

15. Repeat step 9 above and climb through the trap. 16. Fit horizontal braces to both sides of platform at 1st and 2nd rungs above platform level to form permanent handrail. It is safe to use the platform once horizontal braces are locked and secured in place. Repeat steps 11 to 16 until desired height has been reached (max. height 8m outdoors and 12 m indoors). 22

DISMANTLING THE TOWER 1.

At top platform level unlock horizontal braces and diagonal brace at furthest positions from the trap before descending through the trap. As before, rest against the platform (just below base of back) with feet firmly placed on frame rungs.

2.

Remove horizontal braces and pass down to operatives below.

3.

Descend to platform level below and remove top platform

4.

Remove diagonal braces fixed to upper frames.

5.

Remove upper frames.

Repeat steps 1 to 5 until dismantle process is complete.

TRAINING These instructions do not take the place of proper training. Consult your supplier for details of specific training courses for users of mobile access towers. TOEBOARDS

Whichever position the working platform is assembled toeboards must be fitted. Slot the toeboard set together and position on the outer edge of the platform. The toeboards are designed so that the side boards overhang the platform and the end boards are retained by raised studs on the platform hooks (see illustration).

Note If using one piece folding toeboards then select correct toeboard for the desired tower, unfold and fit in place, retained by raised studs on the platform hooks (as above).

23

For Technical advice (or further information) on OCTO 500 Series Towers, please contact: Turner Access Ltd, 65 Craigton Road, Glasgow, G51 3EQ Tel: +44 (0) 141 309 5555 Fax: +44 (0) 141 309 5436 Email: [email protected]

24