RECOVERY GP-COOLANT 3817235 - Caterpillar

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the skin.
Obtain the Sample and the Analysis
In addition to a good preventive maintenance program, Caterpillar recommends using S O S oil analysis at regular scheduled intervals in order to monitor the condition of the differentials, and the maintenance requirements of the differentials.Each oil sample should be taken when the oil is warm and when the oil is well mixed. The sample should be taken at this time in order to ensure that the sample is representative of the oil in the differential and the final drives.Obtain the S O S Sample
Use a 1U-5718 Vacuum Pump or use an equivalent pump that is inserted into the sump.To avoid contamination of the oil samples, the tools and the supplies that are used for obtaining oil samples must be clean.Refer to Special Publication, PEHP6001 for more information on obtaining a good oil sample. Consult your Caterpillar dealer for complete information and assistance in establishing an S O S program for your differentials and final drives.
Illustration 1 g00619955
Front differential filler plug
Illustration 2 g00619971
Rear differential filler plug
The differential filler plugs are located near the middle of the front axle and the rear axle.
Remove the front differential filler plug. Obtain an oil sample in a suitable container.
Clean the filler plug and install the filler plug to the front differential. Seal the container and label the container. Send the sample to your Caterpillar dealer for analysis.
Repeat the procedure for the other rear differential.