VALVE GP-SOLENOID 1917785 - 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, PERJ1017, "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.
Illustration 1 g02943636The hydraulic oil filter is located behind the mud flap on the front of the hydraulic tank.
Stop the engine.
Illustration 2 g02943678
Steering and implement pilot hydraulic system oil filter.
The mud flap is removed from this view to enhance visibility.
Remove the hydraulic oil filter element housing by loosening the housing with a suitable wrench at the bottom of the filter housing. A strap type wrench may also be used to loosen the filter housing.
Dispose of the used oil filter element contained in the oil filter element housing properly.
Note how the oil seals at the top of the oil filter element housing are arranged. Remove the used oil seals from the groove at the top of the oil filter element housing and dispose of the used oil seals properly.
Wash the oil filter element housing in clean nonflammable solvent. Dry the housing thoroughly.
New oil seals for the oil filter element housing are supplied with the new oil filter element. Install the new oil seals in the groove at the top of the oil filter element housing in the proper arrangement. The proper arrangement of the oil seals was noted in step 4 above.
Clean the oil filter mounting base. Make sure that none of the material from the used oil seals remains inside the filter mounting base.
Place the new oil filter element in the oil filter element housing. Apply a thin coat of hydraulic oil to the new oil seals that were installed on the oil filter element housing.
Position the oil filter element housing on the oil filter base and begin to tighten the oil filter element housing by hand. Carefully continue to tighten the oil filter element housing with a wrench until rotation of the housing stops. Do not overtighten.
After rotation of the oil filter element housing has stopped when being tightened with a wrench, loosen the oil filter element housing 1/4 turn. Installation of the oil filter element housing is now complete.
Remove the filler cap and the strainer from the hydraulic oil filler tube. Wash the filler cap and the strainer in a clean nonflammable solvent. Allow the strainer to air dry.
Inspect the strainer for damage. Replace the strainer, if necessary. Install the strainer and the filler cap.
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 - Check" for the correct procedure.