VALVE GP-RELIEF 3G2627 - Caterpillar

Canister Type Filters
Ensure that proper drain hose or other drain catch method is in place.
Remove the vent plug (if equipped) and drain all oil from the filter housing into a proper receptacle.
Remove the oil filter cover.
Remove all elements and contain the oil spills.
Wipe out the oil filter housing and cover. Inspect all canister housing and cover seals for damage. Replace the filter, if necessary.
Clean all magnetic screens (if equipped).
Install the required filters ensuring element adapters and springs are seated properly.
Close or install the drain valve and install the vent plug.General
Use a Filter Cutter to cut the filter element open. Spread apart the pleats and inspect the element for metal and other debris. An excessive amount of debris in the filter element can indicate a pending failure.
Remove the fill cap. Store the cap in a clean location to avoid contamination and damage.
Before filling, refer to Operation and Maintenance Manual, Lubricant Viscosities for the proper type of oil. Also, refer to Operation and Maintenance Manual, Refill Capacities for the proper amount of refill oil.
Fill the tank with clean oil through the filler tube. ISO standards recommend the oil to be 16/13 or cleaner for fill oil.Note: A filter transfer cart, such as the 204-7392 may be required to help get the oil cleanliness level down to ISO 16/13.
Check the sight gauge to ensure that the correct amount of oil was added.
After filling the tank with the proper amount of clean oil, replace and secure the clean filler cap.
Start the engine and operate the engine at low idle for 5 minutes. During this time, exercise all implements to ensure a full system. Inspect the oil filter and drain plug for oil leaks. Stop the engine.
Maintain the oil level at the proper level according to the sight gauge.Final Drive/Differential Oil Change Procedure
Operate the machine to warm the oil.
Park the machine on level ground and lower all implements to the ground. Be sure to engage the parking brake and stop the engine.
Illustration 14 g01278275
(1) Final drive drain plug
(2) Final drive fill plug
Position one final drive so that the oil level mark is horizontal and/or the drain plug (1) is at the lowest point.
Thoroughly clean the area around the final drive fill plug (2). Remove and clean the final drive fill plug.
Illustration 15 g01278276
(3) Bottle Group
(4) Vacuum Pump
Obtain an oil sample from the final drive fill port before draining the final drive oil. Use a Fluid Sampling Bottle (3) and a Vacuum Pump (4) to obtain the final drive oil sample. Refer to Contamination Control Guideline, SEBF8482, "Obtaining an Oil Sample for S O S Analysis" for more information on oil sampling methods.
Install the final drive fill plug.
Send the oil sample to a Caterpillar S O S lab for complete and proper oil analysis including particle counting.
Thoroughly clean the area around the final drive drain plug (1).
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