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SHAFT 7B0032 - Caterpillar



7B0032 SHAFT Caterpillar parts SHAFT
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Alternative (cross code) number:
CA7B0032
7B-0032
7B0032
Caterpillar 7B0032 SHAFT

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Table 1
Tools Needed     Qty    
6V-3079 Pressure Hose Assembly     1    
6V-4143 Coupler Assembly     2    
8T-0856 Pressure Gauge (
6000 kPa (870 psi))     1    
8T-0860 Pressure Gauge (
40000 kPa (5800 psi))     1    Note: Make sure that the filters and the screens are clean before you test any pressures. Make sure that the oil is at operating temperature before you perform this test.Note: Before you perform any tests, visually inspect the entire hydraulic system for oil leaks and for damaged components.
Personal injury or death can result from sudden machine movement.Sudden movement of the machine or release of air pressure or oil pressure can cause injury to persons on or near the machine.To help prevent possible injury before testing and adjusting any air system or hydraulic system, perform the procedure in the Testing and Adjusting, "General Information" section.
Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Illustration 1 g00531329
(1) High pressure relief valve (2) Low pressure relief valve (3) Hoist dual stage relief valve (4) Hoist control valveHoist dual stage relief valve (3) is part of the hoist control valve (4). The relief pressure for the RAISE position is controlled by high pressure relief valve (1). The relief pressure for the LOWER position is controlled by low pressure relief valve (2) .Relief Valve Test (High Pressure)
Illustration 2 g00531857
(5) Pressure tap
Lower the dump body. Stop the engine.
Connect a hose assembly with an 8T-0860 Pressure Gauge (0 to 40000 kPa (0 to 5800 psi)) to pressure taps (5) .
Start the engine. Operate the dump body repeatedly until the temperature of the hydraulic oil is above 38°C (100°F).
Run the engine at high idle and move the hoist control to the RAISE position.
After the dump body is fully raised, look at the gauge and hold the hoist control in the RAISE position. The high pressure gauge reading is the relief valve pressure setting of high pressure relief valve (1). The correct pressure setting is 17230 520 kPa (2500 75 psi).
Illustration 3 g00531382
(1) High pressure relief valve (2) Low pressure relief valve (3) Hoist dual stage relief valve (6) Nut (7) Retainer
Loosen nut (6). Turn retainer (7) in order to adjust the setting of high pressure relief valve (1) .
When high pressure relief valve (1) is correctly set, tighten nut (6) .Relief Valve Test (Low Pressure)
Illustration 4 g00531859
(8) Pressure tap
Lower the dump body. Stop the engine.
Connect a hose assembly with an 8T-0856 Pressure Gauge (0 to 6000 kPa (0 to 870 psi)) to pressure tap (8) .
Start the engine. Operate the dump body repeatedly until the temperature of the hydraulic oil is above 38°C (100°F).
Lower the dump


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