PUMP G 4T6827 - 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, "Dealer Service Tool Catalog" for tools and supplies suitable to collect and contain fluids on Cat® products.Dispose of all fluids according to local regulations and mandates.
Operate the machine until the torque converter and transmission oil is warm. Park the machine on a level surface. Engage the parking brake and shut off the engine.
Raise the hood. Refer to Operation and Maintenance Manual, "Hood Control". The oil level dipstick is integral with the oil filler cap for the torque converter and transmission oil. The oil filler cap is located on the left side of the engine near the air cleaner housing.
Illustration 1 g02387962
Remove cover plate (1).
Clean the area around drain plug (2).
Remove the drain plug and the O-ring seal. Allow the oil to drain into a suitable container. Note: Retain the drain plug and the O-ring seal.
Inspect the drain plug and the seal for damage. If the drain plug or the seal are damaged, replace the damaged components.
Lubricate the O-ring seal with transmission oil.
Install the drain plug and the seal.
Remove the oil filter for the torque converter and transmission oil. Discard the oil filter. Install a new oil filter. Refer to Operation and Maintenance Manual, "Torque Converter and Transmission Oil Filter - Replace".
Illustration 2 g02389399
Clean the area around the top of oil level gauge (dipstick) (3) and filler tube (4) for the torque converter/transmission.
Fill the torque converter/transmission system with new oil through the filler tube . Fill the system to the "COLD SAFE START" range on the dipstick. Refer to the Operation and Maintenance Manual, "Capacities (Refill)", Operation and Maintenance Manual, "Lubricant Viscosities" and Operation and Maintenance Manual, "Torque Converter and Transmission Oil Level - Check".
Guide the dipstick down the filler tube and turn the handle on the dipstick in order to make the seal between the filler tube and the filler cap.
Start the engine. Run the engine at low idle.
Ensure that the parking brake is engaged. Engage the service brakes. Slowly operate the transmission control in order to circulate the oil.
Inspect the torque converter/transmission system for leaks. Shut off the engine and make any necessary repairs.
Install the cover plate.
Wait for five minutes before removing the dipstick. Turn the handle on the dipstick in order to remove the dipstick.
Wipe off the dipstick.
Install the dipstick fully.
Check the oil level on the COLD SAFE START portion