950H Wheel Loader, 962H Wheel Loader and IT62H Integrated Toolcarrier Electrohydraulic System Caterpillar


Piston Pump (Implement) (Pilot)

Usage:

950H J5J



Illustration 1g01954696

(1) Lubricate the bore with a minimal amount of the lubricant that is being sealed.




Illustration 2g01954713

(2) Apply 4C-5300 Gasket Sealant to the threads of the plug prior to installation. Tighten the plug to 13 ± 2 N·m (115 ± 18 lb in).

(3) Apply 4C-5300 Gasket Sealant to the threads of the plug prior to installation.

(F) Installation depth for two dowels ... 2.67 to 2.92 mm (0.105 to 0.115 inch)

(H) Installation depth for two dowels ... 5.55 to 5.80 mm (0.218 to 0.228 inch)

298-8919 Pump Control Valve Gp




Illustration 3g01954734

(4) Lubricate the bore with a minimal amount of lubricant that is being sealed.

(5) Tighten the nut to the following torque. ... 30 ± 7 N·m (22 ± 5 lb ft)

(6) Tighten the nut to the following torque. ... 177 ± 15 N·m (130 ± 11 lb ft)

(7) Tighten the piston to the following torque. ... 350 ± 30 N·m (260 ± 22 lb ft)

(8) At installation, apply 155-0695 Thread Lock Compound.

(9) 270-8937 Spring

Length under test force ... 25.9 mm (1.02 inch)
Test force ... 59 ± 3 N (13 ± 1 lb)
Free length ... 27.6 mm (1.09 inch)
Outside diameter ... 22.7 ± 0.2 mm (0.89 ± 0.01 inch)

(10) 263-1202 Spring

Length under test force ... 75 mm (2.95 inch)
Test force ... 772 ± 38 N (174 ± 9 lb)
Free length ... 104.69 mm (4.12 inch)
Outside diameter ... 28 ± 0.15 mm (1.102 ± 0.006 inch)

Pump Specifications

Note: All specifications are for SAE 10W oil at 50° C (122° F) and 2200 rpm.

Displacement per revolution ... 125 cc (7.6 cubic inch)

Maximum operating pressure ... 31000 kPa (4500 psi)

The pump rotates in the counterclockwise direction when the pump is viewed from the shaft end.

Flow at a discharge pressure of 10000 kPa (1450 psi) ... 272 L/min (72 US gpm)

Margin pressure at a flow of 138 L/min (36 US gpm) and a discharge pressure of 25000 kPa (3650 psi) ... 2100 kPa (305 psi)

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