HOUSING 4E7803 - Caterpillar

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.
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 Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Operate the engine until the transmission oil is warm. Park the machine on a level surface. Lower the bowl until the bowl exerts a slight downward pressure on the ground.Engage the parking brake. Stop the engine.
The transmission drain plug is located under the transmission.
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Remove the transmission drain plug and drain the oil into a suitable container.Note: Discard the drained fluids according to local regulations.
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Remove the sump drain plug and drain the oil into a suitable container.
Change the filter element. Refer to the Operation and Maintenance Manual, "Transmission Oil Filter and Magnetic Screen - Replace/Clean".
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Remove the cover for the scavenge screen.
Remove the scavenge screen from the housing.
Wash the scavenge screen in a clean, nonflammable solvent.
Clean the cover for the scavenge screen and inspect the seal. Replace the seal if damage or wear is evident.
Insert the scavenge screen into the housing.
Install the housing cover. Tighten the bolts in the housing cover.
Clean the transmission drain plug and install the transmission drain plug.
Clean the sump drain plug and install the sump drain plug.
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Fill the transmission with oil through the filler tube. Refer to the Operation and Maintenance Manual, "Capacities (Refill)" and the Operation and Maintenance Manual, "Lubricant Viscosities".
Illustration 5 g00103213
Remove the transmission breather.
Wash the transmission breather in a clean, nonflammable solvent.
Install the transmission breather.
Start the engine. Run the engine at low idle. Inspect the transmission for leaks.
Slowly operate the transmission direction and speed control in order to circulate the oil.
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Maintain the oil level between the "FULL" and "ADD OIL" marks on the dipstick (1). Add oil through filler tube (2), if necessary.
Stop the engine.