Usage:
Rotation when seen from drive end ... counterclockwise
Type of pump ... piston
Displacement ... 46 cm3/rev (2.8 in3/rev)
For test use SAE 10 oil at 65°C (150°F)
Test At Full Speed
Output ... 100.8 ± 3.0 liter/min (26.6 ± .8 U.S. gpm)
At a pressure of ... 690 kPa (100 psi)
With pump at ... 2200 rpm
With engine at ... 2200 rpm
Output ... 99.4 ± 3.0 liter/min (26.3 ± .8 U.S. gpm)
At a pressure of ... 6900 kPa (1000 psi)
With pump at ... 2200 rpm
With engine at ... 2200 rpm
Test At Half Speed
Output ... 50.4 ± 1.5 liter/min (13.3 ± .4 U.S. gpm)
At a pressure of ... 690 kPa (100 psi)
With pump at ... 1100 rpm
With engine at ... 1100 rpm
Output ... 49.6 ± 1.5 liter/min (13.1 ± .4 U.S. gpm)
At a pressure of ... 6900 kPa (1000 psi)
With pump at ... 1100 rpm
With engine at ... 1100 rpm
(1) Torque for nut ... 170 ± 20 N·m (125 ± 15 lb ft)
(2) Torque for three bolts ... 25 ± 3 N·m (18 ± 2 lb ft)
(3) Main relief valve (forward direction):
For machines with serial numbers 3BL1-UP and 3ZL1-UP
Pressure setting (not adjustable) ... 21 000 kPa (3045 psi)
For machines with serial numbers 4HL1-UP and 5AL1-UP
Pressure setting (not adjustable) ... 25 000 kPa (3625 psi)
Torque for plug ... 160 ± 70 N·m (120 ± 50 lb ft)
(4) Charge relief valve:
Bench test at 38°C (100°F) minimum.
Pressure setting (shim adjustable) ... 2756 ± 140 kPa (400 ± 20 psi)
Torque for plug ... 70 ± 27 N·m (50 ± 20 lb ft)
(5) Torque for bypass valve (Do not overtighten) ... 10 to 14 N·m (7 to 10 lb ft)
(6) Main relief valve (reverse direction):
For machines with serial numbers 3BL1-UP and 3ZL1-UP
Pressure setting (not adjustable) ... 21 000 kPa (3045 psi)
For machines with serial numbers 4HL1-UP and 5AL1-UP
Pressure setting (not adjustable) ... 25 000 kPa (3625 psi)
Torque for plug ... 160 ± 70 N·m (120 ± 50 lb ft)
Pump Servo
(1) Torque for locknut ... 5.4 to 9.5 N·m (48 to 84 lb ft)
(2) Torque for bolts ... 11 to 15 N·m (8 to 11 lb ft)
(3) Torque for locknut ... 17 to 25 N·m (13 to 18 lb ft)
(4) Torque for locknut ... 5.4 to 9.5 N·m (48 to 84 lb ft)