980G Wheel Loader Power Train Caterpillar

Transmission Oil Pump - Remove

Usage:

980G 2KR

Removal Procedure

Start By:

Remove the cab. Refer to Disassembly and Assembly, "Cab - Remove" for the machine that is being serviced.
Relieve the pressure from the hydraulic system. Refer to Disassembly and Assembly, "Hydraulic System Pressure - Release" for the machine that is being serviced.

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NOTICE

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the machine. 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 Tools and Shop Products Guide", for tools and supplies suitable to collect and contain fluids in Caterpillar machines. Dispose of all fluids according to local regulations and mandates.

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Personal injury can result from hot oil or hot components.
At operating temperature, oil is hot and under pressure. Hot oil can cause burns.
Remove the fill cap only when the engine is stopped, and the fill cap is cool enough to touch with your bare hand.

Do not allow hot oil or components to contact skin.

Note: Put identification marks on the hose assemblies for installation purposes. Plug the hose assemblies. This will help to prevent fluid loss and this will help to prevent contaminants from entering the system.

Drain the oil from the hydraulic tank in a suitable container. The capacity of the hydraulic oil tank is 125 L (33 US gal).

Drain the oil from the transmission in a suitable container. The capacity of the transmission oil is 62 L (16.4 US gal).

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Illustration 1	g00498559

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Illustration 2	g00498561

Disconnect hose assembly (1) from brake pump (2) .

Disconnect inlet tube (3) from brake pump (2) .

Disconnect transmission pressure inlet hose (4) and lube hose (5) .

Disconnect transmission inlet tube (6) .

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Illustration 3	g00498562

Support the transmission oil pump with a suitable sling and a hoist. Remove two bolts (7) that connect the transmission oil pump to the steering pump.

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Illustration 4	g00498564

Separate the transmission oil pump from steering pump (8). Remove coupler (9) from steering pump (8). The combined weight of the brake and transmission oil pump is 23 kg (50 lb).