WRENCH-PINION 2208430 - Caterpillar

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.
This machine has a hydraulic oil tank for the steering and brake hydraulic oil system. Hydraulic oil tank pressure must be relieved before servicing the steering and brake pump case drain oil filter.
Stop the engine.
Illustration 1 g03352854
Breaker relief valve for the steering and brake system hydraulic oil tank.
(1) Access door
(2) Breaker relief valve
Open access door (1) on the left-hand side of the cab platform. Push the button on the top of breaker relief valve (2) in order to relieve any tank pressure.
Illustration 2 g03352861
Hydraulic system steering and brake pump case drain oil filter.
The hydraulic system steering and brake pump case drain oil filter is located beneath the cab platform. Open the access door that is directly behind the operator cab.
Remove the hydraulic steering and brake pump case drain oil filter and dispose of the filter properly. Make sure that the old filter seal is removed from the filter base.
Apply a thin coat of oil to the seal on the new filter.
Install a new hydraulic oil filter hand tight until the seal of the filter contacts the base. Note the position of the index marks on the filter in relation to a fixed point on the filter base. Note: There are rotation index marks on the hydraulic filter that are spaced 90 degrees or 1/4 of a turn away from each other. When you tighten the filter, use the rotation index marks as a guide.
Tighten the filter according to the instructions that are printed on the filter. Use the index marks as a guide. For non-Cat filters, use the instructions that are provided with the filter. Note: You may need to use a Cat strap wrench, or another suitable tool, in order to turn the filter to the amount that is required for final installation. Make sure that the installation tool does not damage the filter.
Start the engine and run the engine at low idle. Inspect the hydraulic system for leaks.
Check the level of the hydraulic oil. Reference: Refer to Operation and Maintenance Manual, "Hydraulic System Oil Level (Steering) (Brake) - Check" for the correct procedure.
Close the access door.