"

" Series Variable Displacement Piston Pumps

AR16 Axial Port Type

AR16 Side Port Type

"AR" series variable displacement pump has been developed which the aim of even further the quientness in operation, smaller in size and lighter in mass and based on Yuken technology and engineering which put on market the "A" series pump which has a reputation for its quiet operation and high efficiency. Geometric Displacement Graphic Symbol

Pump Type

.1 1

.2 2

.5 5

1

10

2 20

5 50

100

cu. in./rev 10 15 200 300 cm3/rev

Maximum Operating Pressure MPa (PSI)

Page

16 (2320)

18

AR16 "AR" Series Variable Diplacement Piston Pumps

M O

AR22

15

Hydraulic Fluids Hydraulic Fluids

Control of Contamination

Use petroleum base oils such as anti-wear type hydraulic oils or R & O (Rust and Oxidation inhibitor) type hydraulic oils equivalent to ISO VG-32 or 46. The recommended viscosity range is from 20 to 400 mm2/s (98 to 1800 SSU) and temperature range is from 0 to 60 °C (32 to 140 °F), both of which have to be satisfied for the use of the above hydraulic oils.

Due caution must be paid to maintaining control over contamination of the operating oil which can otherwise lead to breakdowns and shorten the life of the unit. Please maintain the degree of contamination within NAS Grade 10. The suction port must be equipped with at least a 100 µm (150 mesh) reservoir type filter and the return line must have a line type filter of under 10 µm.

Instructions Mounting

Drain Piping

When installing the pump the filling port should be positioned upwards.

Install drain piping according to the chart and ensure that pressure within the pump housing should be maintained at a normal pressure of less than 0.1 MPa (14.5 PSI) and surge pressure of less than 0.5 MPa (72.5 PSI). Length of piping should be less than 1 m (3.3 ft.), and the pipe end should be submerged in oil. In case AR16 and AR22 pump, a screw-in torque of fitting is 40 to 50 Nm (354 to 443 IN.1bs.). Do not apply bending and thrust torque to the fitting.

Alignment of Shaft Employ a flexible coupling whenever possible, and avoid any stress from bending or thrust. Maximum permissible misalignment is less than 0.1 mm (.004 inches) TIR and maximum permissible misangular is less than 0.2°.

Suction Pressure

[Recommended Drain Piping Size]

Permissible suction pressure at inlet port of the pump is between -16.7 and +50 kPa (5 in.Hg Vacuum and 7 PSIG). For piping to the suction port, use the pipes of the same diametre as that of the specified pipe flange to be used. Make sure that the height of the pump suction port is within one metre (3.3 ft) from the oil level in the reservoir.

Fitting Size Model

AR16, AR22

Japnese Std. "JIS" & European Design Std.

N.American Design Std.

3/8

SAE #8

[Inside Dia. 8.5 mm (.33 in.) or more]

10 mm (.39 in.)

Hints on Piping

Bleeding Air

When using steel pipes for the suction or discharge ports, excessive load from the piping to the pump generates excessive noise. Whenever there is fear of excessive load, please use rubber hoses.

It may be necessary to bleed air from pump case and outlet line to remove causes of vibration. An air bleed valve (Model Number ST1004-*-10*, Page 820) is recommended for this purpose.

Suction Piping In case the pump is installed above the oil level, the suction piping and suction line filter should be located lower than the pump position to prevent air in the suction line.

16

Inside Dia. of Pipe

"AR" Series Variable Displacement Piston Pumps

PISTON PUMPS

A

Starting

"AR" Series

Before first starting, fill pump case with clean operating oil via the filling port. In order to avoid air blockage when first starting, adjust the control valves so that the discharged oil from the pump is returned direct to the reservoir or the actuator moves in a free load. [Volume of Pre-fill Oil Required] Model

Volume cm3 (in.3 )

AR16 AR22

430 (26.2)

Setting Discharge Pressure and Delivery At the time of shipment, the unit has been preset to maximum delivery and minimum discharge pressure. Adjust the preset delivery and pressure to meet your system requirements.

Adjustment of Discharge Pressure Turning the adjustment screw clockwise, increases pressure. Volume adjusted by each full turn of the pressure adjustment screw Model Numbers

Adjustment Volume MPa (PSI)

AR16/AR22-FR01B

2.9 (420)

AR16/AR22-FR01C

5.4 (780)

Adjustment of Delivery Turning the delivery adjustment screw clockwise, decreases delivery. The minimum adjustable flow and adjustable volume of each full turn of the delivery adjustment screw

Model Numbers

Adjustable volume with each full turn of the adjustment screw cm3/rev (cu.in./rev)

AR16

1.5 (.092)

6 (.366)

AR22

2.1 (.128)

8.5 (.519)

Minimum adjustable flow cm3/rev (cu.in./rev)

"AR" Series Variable Displacement Piston Pumps

17

"AR" Series Variable Displacement Piston Pumps Pressure Compensator Valve Spool Pressure Adj. Screw

Control Piston Drain Port Pivot

Flow Adj. Screw

Journal Bearing OUT

IN

Shaft Port Plate Yoke Cylinder Block Slipper Retainer Spring

Piston Ass'y

Features Smaller in Size and Lighter in Mass As indicated in the dimensional comparison presented below, the AR16 is smaller than the A16 (32 design). Also, the mass of AR16 is substantially lighter than the A16.

Low Noise The noise level of AR16 has been reduced by 1-2 dB (A) at full flow and full cut-off compared with that of the excellent A16 quiet pump.

[Comparison of "AR16" with "A16"] A16,32 Design AR16,20 Design Fully Extended 263.5(10.37)

187(7.36)

190(7.48)

188(7.40)

Fully Extended 240(9.45)

130(5.12)

Model

18

DIMENSIONS IN MILLIMETRES (INCHES)

Approx. Mass (Flange Mtg.)

AR16

9.8 kg (21.6 lbs.)

A16

16.5 kg (36.4 lbs.)

Ratio of Mass (AR16/A16) 60 %

"AR" Series Variable Displacement Piston Pumps

PISTON PUMPS

A "AR" Series

"AR" Series Variable Displacement Piston Pumps – Single Pump, Pressure Compensator Type Graphic Symbol

M O

Specifications Operating Pressure MPa (PSI)

Geometric Displacement cm3/rev (cu.in./rev)

Model Numbers

AR16-FR01*-20/2080/20950

15.8 ( .964)

AR22-FR01*-20/2080/20950

22.2 (1.355)

Rated

Shaft Speed Range r/min.

Intermittent 16 (2320)

Max.

Min.

1800

600

1800

600

Approx. Mass kg (lbs.) 9.8 (21.6)

When setting the pressure, make sure the full cut-off pressure never exceeds the maximum intermittent pressure.

Model Number Designation AR16 -F R Series Number AR16 (15.8 cm3/rev) AR22 (22.2 cm3/rev)

Mounting

F: Flange Mtg.

Direction of Rotation Viewed from Shaft End R: 1 Clockwise (Normal)

01

B

S

-20

*

Control Type

Pres. Adj. Range MPa (PSI)

Port Position

Design Number

Design Std.

B: 1.2 - 7 {170 - 1020}

None: Axial Port

C: 2.0 - 16 {290 - 2320}

S: Side Port

01: Pressure Compensator Type

1. Available to supply pump with anti-clockwise rotation. Consult Yuken for details.

20 Refer to

2

20

2. Design Standards: None......... Japanese Standard "JIS" 80 . .. . ......... European Design Standard 950 . . ......... N. American Design Standard

Pipe Flange Kits Pipe flange kits are available. When ordering, specify the kit number from the table below. Pipe Flange Kit Numbers Name of Port

Pump Model Numbers

AR16-FR01 AR22-FR01

Suction

Threaded Connection

Socket Welding

Japanese Standard "JIS"

European Design Standard

N. American Design Standard

Japanese Standard "JIS" European Design Standard

N. American Design Standard

F5-06-A-1021

F5-06-A-10801

F5-06-A-10950

F5-06-B-1021

F5-06-B-10901

Discharge

Discharge port is available only for the threaded connections. Detail of the pipe flange kits are shown on page 24.

Mounting Bracket Kits Mounting bracket available on separate order. Refer to page 24 for dimennsions of the Mtg. bracket. Pump Model Numbers

Mtg. Bracket Kit Numbers

Approx. Mass kg (lbs.)

AR16/AR22-FR01

LP-1A-10

2.2 (4.9)

Note: The mounting bracket kit consists of a mounting bracket, two hex. bolts and two plain washers.

"AR" Series Variable Displacement Piston Pumps Single Pump, Pressure Compensator Type

19

Typical Pump Characteristics of Type "AR16" at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)] Performance Characteristic Curve

Output Flow

kW 8

6

20 Input Power

6

4 10

4 2 0

2

0 0

4

0

8

500

12

1000 1500 Pressure

16 MPa 2000

80

0

HP 12 10 8 6 4 2 0

L/min U.S.GPM 8 30

Output Flow

60

Input Power

Input Power

U.S.GPM 8

N=1800 r/min Volumetric Efficiency Overall Efficiency

kW 8

6 20

6

4

Input Power

4

10

2 0 0

4

0

PSI

8

500

0 0 16 MPa

12

1000 1500 Pressure

2320

2

Output Flow

L/min 30

Efficiency

80 60

HP 12 10 8 6 4 2 0

% 100

N=1500 r/min Volumetric Efficiency Overall Efficiency

Output Flow

Efficiency

% 100

2000

PSI 2320

Input Power kW 10 8

Input Power

10 8

6

6 4

2

P= 14 (2030) P= 12 (1740)

10

P= 2 (290) P=0.7 (100)

0

0

P=MPa(PSI)

HP 12

P= 10 (1450) P= 8 (1160) P= 6 (870) P= 4 (580)

4

2

kW 10

N=1500 r/min

Input Power

HP 12

0 0

5 1

10 2

20

15

3 4 5 Output Flow

30

25 6

8 6

8

P=MPa(PSI) P= 14 (2030) P= 12 (1740)

6

P= 10 (1450) P= 8 (1160)

4

P= 6 (870) P= 4 (580)

2

P= 2 (290) P=0.7 (100)

4 2

0

0

0

L/min

8 U.S.GPM

7

N=1800 r/min

0

5 1

10 2

15

20

3 4 5 Output Flow

25 6

30

L/min

8 U.S.GPM

7

Drain in.3/min L/min 120 2.0

Full Cut-off Power kW 1.5

N=1800 r/min

100 1.5 80

1.5

Drain

Full Cut-off Power

HP 2.0

1.0 1800

1.0 0.5

r/min

0.5 20

0

0

0 0

4 500

8 1000

N=1500 r/min

40

r/min 1500

0.5

Full Cut-off 1.0

60

12 1500

16 MPa 2000

0

0

PSI

0

4

8

500

1000

2320

Full Cut-off Pressure

in 800 r/m 1500,1

Full Flow

0

12 1500

16 MPa 2000

PSI 2320

Pressure

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover] dB(A) 80

N=1500 r/min

70 60

Noise Level

Noise Level

dB(A) 80

Full Flow

N=1800 r/min

70

Full Flow

60 50

50

Full Cut-off

Full Cut-off 40

0 0

20

4 500

8

12

1000 1500 Pressure

16 MPa 2000

PSI

40

0 0

4 500

2320

"AR" Series Variable Displacement Piston Pumps Single Pump, Pressure Compensator Type

8

12

1000 1500 Pressure

16 MPa 2000

PSI 2320

PISTON PUMPS

A

Typical Pump Characteristics of Type "AR22" at Viscosity 20 mm2/s (100 SSU) [ISO VG32 Oils, 50°C (122°F)]

Overall Efficiency

80

HP kW 16 12 60 10 12 8 6 8 4 4 2 0

Output Flow

8

30

Input Power

6

20

4 10 0

4

0

8

500

2

0 0 16 MPa

12

1000 1500 Pressure

2000

Input Power

L/min U.S.GPM 40 10

% 100

N=1800 r/min Volumetric Efficiency

80

L/min U.S.GPM 40 10

Output Flow

HP kW 16 12 60 10 12 8 8 6 4 4 2 0

8

30

Overall Efficiency Input Power

6

20

4 10

0 0

PSI

"AR" Series

N=1500 r/min Volumetric Efficiency

4

8

500

1000

2320

Output Flow

Efficiency

% 100

Output Flow

Input Power

Efficiency

Performance Characteristic Curve

2 0 0 16 MPa

12 1500

2000

PSI 2320

Pressure

Input Power kW 10

P=MPa(PSI) P= 14 (2030)

12

Input Power

10

HP 14

N=1500 r/min

8

P= 10 (1450) 8

6

P= 8 (1160) P= 6 (870)

6 4

0

P= 12 (1740)

8

P= 6 (870)

6

P= 2 (290)

0

2

4

50 L/min

40

6 8 Output Flow

10

P= 1 (145)

0

0 30

20

P= 4 (580)

2

2

0 10

P= 8 (1160)

6

4

P= 1 (145)

0

P= 10 (1450)

4

P= 2 (290) 2

N=1800 r/min P=MPa(PSI) P= 14 (2030)

8

10

P= 4 (580)

4 2

kW 10

12

P= 12 (1740) Input Power

HP 14

12

0 0

U.S.GPM

10

30

20

2

4

50 L/min

40

6 8 Output Flow

10

12

U.S.GPM

Drain in.3/min L/min 2.0 120

Full Cut-off Power HP 2.0

1800 r/min

100

kW 1.5

1.5 Drain

1.0 1.0 180

0.5 0.5

1500

in 0 r/m

1500 r/min 0.5

r/min

20

0

4 500

8

12

1000 1500 Full Cut-off Pressure

2000

16 MPa

0

4

PSI

0

500

2320

1500

Full Flow

0

0 0

Full Cut-off

1.0

60 40

0

0

,1800

8

r/min

12

1000 1500 Pressure

16 MPa 2000

PSI 2320

Noise Level [One metre (3.3 ft.) horizontally away from pump head cover] dB(A) 80

dB(A) 80

N=1500 r/min

70

Noise Level

Noise Level

Full Cut-off Power

80 1.5

Full Flow

60 50

N=1800 r/min

70

Full Flow

60 50 Full Cut-off

Full Cut-off 40

0 0

4 500

8

12

1000 1500 Pressure

16 MPa 2000

2320

PSI

40

0 0

4 500

"AR" Series Variable Displacement Piston Pumps Single Pump, Pressure Compensator Type

8 1000 1500 Pressure

12

16 MPa 2000

2320

PSI

21

Response Characteristics Change in Accordance with Circuits and Operating Conditions. Test Circuit and Conditions Circuit

Hydraulic High Pressure Hose 3/4" 1 m (3.3 ft.)

SOL

M O

Conditions Drive Speed : 1500 r/min Hydraulic Fluid : ISO VG32 oil Oil Temperature : 50 °C (122 °F) Viscosity : 20 mm2/s (100 SSU)

Result of Measurement t1

Pressure

t2 Ps

P1

2 MPa (290 PSI)

2 MPa (290 PSI) Time

SOL OFF

Model AR16 AR22

22

Full Cut-off Pressure P1 MPa (PSI) 16 (2320)

OFF

ON

Response Time ms t1

t t22

Overshoot Overshoot Pressure Pressure Ps MPa (PSI)

60

65

5.6 ( 810)

70

70

7.3 (1060)

"AR" Series Variable Displacement Piston Pumps Single Pump, Pressure Compensator Type

PISTON PUMPS AR16-FR01*-20/2080/20950 AR22-FR01*-20/2080/20950

Filling Port [22(.87) Hex. Head Plug Furnished]

22.2

147 (5.79) 172 (6.77) Discharge Port "C" Thd.

(.874) 32.5 32.5 (1.28) (1.28) 120 (4.72)

Pressure Adj. Screw 13(.51) Hex.

106 (4.17) 130 (5.12)

76 (2.99)

96 (3.78) 114 (4.49)

77 (3.03)

31 (1.22)

10 (.39)

Lock Nut 13(.51) Hex.

INC.

82.55(3.2500) Dia. 82.50(3.2480)

50 (1.97)

47.6 (1.874) Suction Port 19(.75) Dia.

(.98)

19.05(.7500) Dia. 19.02(.7488) 21.24(.836) 21.08(.830)

Flow Adj. Screw 13(.51) Hex. DEC.

Drain Port "D" Thd.

12(.47)

44.5 Fully Extended 195.5(7.70) (1.75) 6.5 68 (2.68) (.26) 25

Lock Nut 13(.51) Hex.

Fully Extended 165.5(6.52) Fully Extended 100.5 (3.96) 4.79(.1886) 4.76(.1874)

"AR" Series

Axial Port Type

Pressure Gauge Connection "F" Thd

"E" Thd. 17(.67) Deep 2 Places

A

95(3.74) Dia.

Install the pump so that the "Filling port" is at the top. Model Numbers

"C" Thd.

"D" Thd.

Rc 3/4

Rc 3/8

AR16/AR22-FR01*-20 AR16/AR22-FR01*-2080

SAE #12

SAE #8

Rc 1/4

M10

3/4 BSP.F 3/8 BSP.F

AR16/AR22-FR01*-20950

"F" Thd.

"E" Thd.

1/4 BSP.Tr

3/8-16 UNC

SAE #4

DIMENSIONS IN MILLIMETRES (INCHES)

AR16-FR01*S-20/2080/20950 AR22-FR01*S-20/2080/20950

Side Port Type

"E" Thd. 17 (.67) Deep 2Places

47.6 (1.874)

Drain Port "D" Thd.

22.2 (.874)

74 (2.91)

Suction Port 19 (.75) Dia.

158 (6.22)

74 (2.91) Discharge Port "C" Thd.

Model Numbers AR16/AR22-FR01*S-20

"C" Thd.

"D" Thd.

Rc 3/4

Rc 3/8

AR16/AR22-FR01*S-2080

3/4 BSP.F

3/8 BSP.F

AR16/AR22-FR01*S-20950

SAE #12

SAE #8

"E" Thd. M10 3/8-16 UNC

For other dimensions, refer to "Axial Port Type".

"AR" Series Variable Displacement Piston Pumps Single Pump, Pressure Compensator Type

23

Pipe Flange Kit for Suction Port Threaded Connection Japanese Std. "JIS": F5-06-A-1021 48(1.89)

11(.43) Dia. Through 2 Places

Rc 3/4 Thd.

30 (1.18)

O-Ring SO-NB-G30

47.6 (1.874)

66(2.60)

22.2 (.874)

Soc. Hd. Cap Screw (2 Pcs.) M10 45 Lg.

15 (.59)

Approx. Mass ............... 0.5 kg (1.1 lbs.)

N. American Design Std.: F5-06-A-10950

European Design Std.: F5-06-A-10801 48(1.89)

31(1.22)

22.2 (.874)

0.3 – 0.5 (.01 – .02)

20 (.79)

10.8 (.43)

3/4 BSP. F Thd.

19 0.2 – 0.5 (.01 – .02) (.75)

O-Ring SO-NB-G30

14.8 (.58) Soc. Hd. Cap Screw (2 Pcs.) M10 35 Lg.

Socket Welding F5-06-B-1021/10901

O-Ring SO-NB-G30

11.5 (.45)

15.6 (.61) Soc. Hd. Cap Screw (2 Pcs.) 3/8-16UNC 1-1/2 Lg.

15 (.59) 8 (.31)

O-Ring SO-NB-G30

47.6 (1.874)

27.7 Dia. (1.09)

22.2 (.874)

Soc. Hd. Cap Screw (2 Pcs.)

C

Kit Numbers

C mm (In.)

F5-06-B-1021

15 (.59)

Soc. Hd. Cap Screw M10

F5-06-B-10901 16.75 (.66) 3/8-16 UNC

Approx. Mass ............... 0.3 kg (.66 lbs.)

17 (.67)

Plain Washer (2 Pcs.)

50 (1.969)

56.5 (2.22)

95 (3.74)

27.5 (1.08)

95 (3.74) 72.5 72.5 (2.854) (2.854) 180 (7.09)

80 (3.15) 145.5 (5.73) 14 (.55) 15 (.59)

Hex. Bolt (2 Pcs.) M10 × 25 Lg.

Japanese Std. "JIS" European Design Std. 1-1/4 Lg. N. American Design Std.

45Lg.

12(.47) Dia. Through 24(.94) Dia. Spotface 4 Places

3 (.12)

Mtg. Bracket

Remarks

DIMENSIONS IN MILLIMETRES (INCHES)

Mtg. Bracket Kit: LP-1A-10

24

SAE #12

Approx. Mass ............... 0.5 kg (1.1 lbs.)

48(1.89)

11(.43) Dia. Through 2 Places

66(2.60)

34(1.34)

47.6 (1.874)

70(2.76)

11(.43) Dia. Through 17.5(.69) C' bore 2 Places

"AR" Series Variable Displacement Piston Pumps Single Pump, Pressure Compensator Type

PISTON PUMPS

A

Spare Parts List

21 26 15

16 29 31 12 30 32 14 23 11 10 6

33 13 24

35 34 4 27 17

"AR" Series

AR16-FR01*-20/2080/20950 AR22-FR01*-20/2080/20950 1 3 25

Z

Z

38 39 40 41 42

9 28 70

71

5 19 37 36 8

7

2 22 18 20

51 52 53 54 55 56 57 58 59 60 61

Design "20950" Only 63

62

Section Z-Z List of Seals & Bearings Item

Name of Parts

5

Gasket

17

Bearing

19

Bearing

20

Oil Seal

30 31 32 54

Part Numbers AR16-FR01

AR22-FR01

Qty.

1302-PK312891-5

1

6305

1

HMK 1715 V2

Z30-1303-PK410300-8

1

TCN 254511

1

O-Ring

SO-NB-P9

3

O-Ring

SO-NA-P8

1

O-Ring

SO-NB-P14

1

O-Ring

SO-NA-A018

1

62

O-Ring

SO-NB-P10

1

70

O-Ring

SO-NB-A905

1

When ordering seals, please specify the seal kit number from the table below.

List of Seal Kits Pump Model Numbers

Seal Kit Number

AR16-FR01*-20/2080/20950

KS-AR16-01-20

AR22-FR01*-20/2080/20950

"AR" Series Variable Displacement Piston Pumps Single Pump, Pressure Compensator Type

25

Interchangeability in Installation between "A" Series and "AR" Series Specifications Model Geometric Displacement

16 MPa (2320 PSI)

16 MPa (2320 PSI)

16 MPa (2320 PSI)

16 MPa (2320 PSI)

600 -1800 r/min

Shaft Speed Range

16.5 kg (36.4 lbs.)

Approx. Mass (Flange Mtg.)

AR22-FR01*-20*

22.2 cm3/rev (1.355 cu.in./rev)

21 MPa (3050 PSI)

Intermittent

A22-*-R-01-*-K-32*

15.8 cm3/rev (.964 cu.in./rev)

Rated

Operating Pres.

AR16-FR01*-20*

A16-*-R-01-*-K-32*

Description

600 -1800 r/min

9.8 kg (21.6 lbs.)

16.5 kg (36.4 lbs.)

9.8 kg (21.6 lbs.)

Interchangeability in Installation Model Numbers

Interchangeability in Installation

"A" Series

"AR" Series

A16-*-R-01-*-K-32*

AR16-FR01*-20*

A22-*-R-01-*-K-32*

AR22-FR01*-20*

Piping

Mtg. Flange & Shaft End

Suction Port

Discharge Port

Drain Port

Yes

Yes

No

No

Comparison of dimensions between "A" series and "AR" series are shown below. Note: Dimensions with star mark 44.5 Filling Port

6.5

26.5

Drain Port "D" Thd.

Suction Port 19 Dia.

96

109 62

12

106 130

172

65

+0.03 0

R12

φ95

"E" Thd. 17 Deep 8 Places

22.2

4.76

12

47.6

187

25

0

0

φ 19.05 -0.03

Pressure Adj. Screw

Flow Adj. Screw

φ 82.55 -0.05

59

0 21.24 -0.16

Fully Extended 219

are identical to each other.

18

A16/A22-F-R-01-*-K

Discharge Port 19 Dia.

188

"C" Thd.

Model Numbers

"D" Thd.

"E" Thd.

Rc 3/8

A16/A22-F-R-01-*-K-32

M10

3/8 BSP.F

A16/A22-F-R-01-*-K-3280

SAE #8

A16/A22-F-R-01-*-K-32950 AR16/22-FR01*-20

Rc 3/4

Rc 3/8

AR16/22-FR01*-2080

3/4 BSP.F

3/8 BSP.F

AR16/22-FR01*-20950

SAE #12

SAE #8

"F" Thd.

3/8-16 UNC M10 3/8-16 UNC

Rc 1/4 1/4 BSP.Tr SAE #4

AR16/AR22-FR01

22.2 32.5

32.5 120

26

76

10 147 172

106 130

Discharge Port "C" Thd.

"AR" Series Variable Displacement Piston Pumps Single Pump, Pressure Compensator Type

114

96

Pressure Adj. Screw

31

12

77

0

0

50

47.6 Suction Port 19 Dia.

φ82.55 -0.05

25 "E" Thd. 17 Deep 2 Places

Pressure Gauge Connection "F" Thd.

Fully Extended 165.5 Fully Extended 100.5 +0.03 4.76 0

6.5 0 21.24 -0.16

Fully Extended 195.5 68

φ19.05 -0.03

Flow Adj. Screw

Filling Port Drain Port "D" Thd. 44.5

95