HARNESS AS-WIRING 3754311 - Caterpillar

Illustration 1 g00591940
The main pump must be filled with hydraulic oil before operation or damage will result. Add hydraulic oil through the fill/vent port of the main pump.
Test Specification
Note: The values of the pump flow, the pressure settings for the relief valves, and other specifications are measured on the machine. For further details on the testing procedures, refer to the Testing and Adjusting manual. ISO VG32 hydraulic oil ... 50 5°C (122 9°F)Pump rotation should be clockwise.At the following pressure settings, measure the output flow. Output flow ... 178 15 L/min (47 4 US gpm) Pump delivery pressure ... 6850 kPa (1000 psi) Power shift pressure ... 2400 kPa (350 psi) Pump speed ... 1800 rpm Output flow ... 153 10 L/min (40 2.6 US gpm) Pump delivery pressure ... 11800 kPa (1700 psi) Power shift pressure ... 2400 kPa (350 psi) Pump speed ... 1800 rpm (1) Two 123-2025 Springs Free Length ... 19.0 mm (0.75 inch) Outside diameter ... 10.5 mm (0.41 inch) (2) Two 123-1980 Springs Free Length ... 22.0 mm (0.87 inch) Outside diameter ... 18.8 mm (0.74 inch) (3) Two 099-5837 Springs Free Length ... 126.0 mm (4.96 inch) Outside diameter ... 46.0 mm (1.81 inch) (4) Two 087-4762 Springs Free Length ... 63.0 mm (2.48 inch) Outside diameter ... 30.8 mm (1.21 inch) (5) Two 087-4763 Springs Free Length ... 35.5 mm (1.40 inch) Outside diameter ... 29.5 mm (1.16 inch)Use the following shims (6) to attain the correct dimension "A". The correct dimension is 76.0 + 0.00 - 0.05 mm (2.99 + .000 - .002 inch). (6) 9T-3376 Shim Thickness of one shim ... 2.7 mm (0.106 inch) 9T-3377 Shim Thickness of one shim ... 2.8 mm (0.110 inch) 9T-3378 Shim Thickness of one shim ... 2.9 mm (0.114 inch) 9T-3379 Shim Thickness of one shim ... 3.0 mm (0.118 inch) 9T-3380 Shim Thickness of one shim ... 3.1 mm (0.122 inch)Use the following spacers (7) to attain the correct dimension "B". The correct dimension 4.7 0.05 mm (.185 .002 inch). (7) 9T-3391 Spacer Thickness of one spacer ... 5.3 mm (0.209 inch) 9T-3392 Spacer Thickness of one spacer ... 5.4 mm (0.213 inch) 9T-3393 Spacer Thickness of one spacer ... 5.5 mm (0.217 inch) 9T-3394 Spacer Thickness of one spacer ... 5.6 mm (0.221 inch) 9T-3395 Spacer Thickness of one spacer ... 5.7 mm (0.224 inch) 9T-3396 Spacer Thickness of one spacer ... 5.8 mm (0.228 inch) 9T-3397 Spacer Thickness of one spacer ... 5.9 mm (0.232 inch)Pilot Pump
Part of the Main Pump
Type of pump ... GearBench test the pump with ISO VG32 hydraulic oil at a temperature of 50 5°C (122 9°F).At the following pressure setting, measure the output flow: Output flow ... 36.5 L/min (9.6 US gpm) Pump delivery pressure ... 4100 200 kPa (595 30 psi) Pump speed ... 1800 rpm