966H Wheel Loader and 972H Wheel Loader Electrohydraulic System Piston Pump (Implement) (Pilot) Caterpillar


Piston Pump (Implement) (Pilot)
`
966H Wheel Loader and 972H <BR>Wheel Loader Electrohydraulic System [RENR8856]
HYDRAULIC SYSTEM
PUMP GP
966H Wheel Loader and 972H Wheel Loader Electrohydraulic System Piston Pump (Implement) (Pilot)
966H Wheel Loader and 972H Wheel Loader Electrohydraulic System Piston Pump (Implement) (Pilot)
1.1. 298-8919 Pump Control Valve Gp
2.1. Pump Specifications



Illustration 1g01944361

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




Illustration 2g01944362

(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)

(G) Installation depth for two dowels ... 6.8 to 9.0 mm (0.27 to 0.35 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 3g01944379

(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 2100 rpm.

Displacement per revolution ... 145 cc (8.8 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) ... 302 L/min (80 US gpm)

Margin pressure at a flow of 151 L/min (40 US gpm) and a discharge pressure of 25000 kPa (3650 psi) ... 2100 kPa (305 psi)

Information System:

2009/07/20 The Mounting of the Transmission Tube Assemblies has been Improved {3154}
C13 Tier 4 Final Engines Water Pump - Test
D10T Track-Type Tractor Hydraulic System Filter Bypass Screen - Clean
C13 Tier 4 Final Engines Water Temperature Regulator - Test
2009/06/29 Correction to Specifications , "Service and Parking Brake" {4251, 4267}
2009/06/29 Correction to Specifications , "Service and Parking Brake" {4251, 4267}
D8T Track-Type Tractor Hydraulic System Filter Screens - Clean
980H Wheel Loader Machine Systems Lubrication Pump (Automatic) - Assemble
980H Wheel Loader Machine Systems Lubrication Pump (Automatic) - Disassemble
2009/06/15 A New Cover Plate For the Bottom Guard Is Now Used {7153}
Undercarriage Reconditioning Bulletin Contents {0374, 4150}
973D Track-Type Loader Power Train Power Train Electrohydraulic System
2009/06/29 Correction to Specifications , "Lockup Clutch and Solenoid Valve (Torque Converter)" {3124, 5479}
2009/09/30 Shims are Available for Improved Strength of Draft Arm and the Bearing Joint on Wheel Tractor-Scrapers {6207, 6245}
C13, C15, and C18 Tier 4 Interim Engines Sensor Signal (Analog, Active) - Test
973 K Track-Type Loaders Track Roller - Single Flange
2010/04/15 New Alternators for 3054C, C4.4 and C6.6 Engines {1405, 1425}
2014/09/12 New Alternators for C6.6 and C4.4 Engines {1405, 1425}
973D Track-Type Loader Hydraulic System Control Valve (Implement)
C27 Engine for the AD55B Underground Articulated Truck Engine Has Mechanical Noise (Knock)
C27 Engine for the AD55B Underground Articulated Truck Engine Overspeeds
C27 Engine for the AD55B Underground Articulated Truck Engine Stalls at Low RPM
C27 Engine for the AD55B Underground Articulated Truck Exhaust Has Excessive Black Smoke
C27 Engine for the AD55B Underground Articulated Truck Exhaust Has Excessive White Smoke