TORQUE CONVERTER 8C6931 - Caterpillar

Take extreme care to insure the cleanliness of the hydraulic oil. Keep the hydraulic oil clean in order to extend the component life and assure the maximum performance.
Illustration 1 g03795748
The filter can be accessed through the left side access door in the hopper.
In order to catch any oil that spills, place a suitable container under the filter. Refer to the Operation and Maintenance Manual, "General Hazard Information" for information that pertains to fluid spillage.
Remove the plug in the bottom of the filter housing in order to pre-drain the filter housing.
Remove the filter housing with a 1.25 inch socket or box end wrench. Do not use an air wrench, open-end wrench, or adjustable wrench.
Remove the filter element from the filter housing, and discard the filter in a proper manner.
Clean the filter housing. Install the plug in the bottom of the filter housing.
Coat the new gasket with clean oil.
Install the new filter element and gasket in the filter housing.
Install the filter housing. Tighten the filter housing to a torque of 40 5 N m (30 4 lb ft).
Illustration 2 g03795739
Check the pump drive oil level with oil level gauge (2). Maintain the oil level according the appropriate levels listed on the oil level gauge. Note: The pump drive oil must be checked with the engine running.
If oil needs to be added, remove plug (1) for the fill port. Add oil through the opening.