TRUNNION 4D9934 - 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.
The valve for sampling the transmission oil is located on the transmission oil filter base, and is located on the left-hand side of the machine.
Operate the machine for a few minutes before obtaining the oil sample. This operation will thoroughly mix the transmission oil for a more accurate sample.
Illustration 1 g03380249
Transmission oil sampling valve
Remove the access plate that is between the rear axle and the articulation joint on the left-hand side of the machine.
Use the transmission oil sampling valve in order to obtain a sample of the transmission oil.
Replace the access plate that was removed in step 2 before operating the machine. Reference: For more information, refer to Special Publication, SEBU6250, "Caterpillar Machine Fluids Recommendations" and Special Publication, PEHP6001, "How To Take A Good Oil Sample".