ANGLE 0037220 - 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.
Note: The Hystat transmission and the hydraulic system use a common tank.
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Two hydraulic filters are located on the right side of the machine. Open the access door on the right side of the machine.
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Remove both filter elements by using the following steps.
Place a pan under the filters.
Remove the drain plugs. Then, loosen the filter housings with a strap type wrench to allow air entry into the filter housing to allow for oil drainage.
Allow some time for complete drainage of oil from the filter housings.
Remove the filter housings from the oil filter bases.
Clean the filter element mounting bases. Remove any part of the filter element gasket that remains on the filter element mounting bases.
Replace a new filter element into the housing. Apply a light coat of oil to the gasket of the new filter elements.
Install the filter housings onto the filter bases. When the gasket contacts the filter element mounting base, tighten the housing to a torque of 40 5 N m (30 4 lb ft). Use a 32 mm (1.25 inch) box end wrench.
Install the drain plugs. Tighten to a torque of 10 1.5 N m (7 1.1 lb ft)
Close the access door.
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Maintain the hydraulic oil level so the oil is visible in the sight gauge . Add oil, if necessary.Reference: See Operation and Maintenance Manual, "Hydraulic System Oil Level - Check" for additional information.
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Open the access door on the left side of the machine
Inspect the gasket on the cap for damage. Replace the gasket, if necessary.
Install the cap.
Close the access door.