PUMP GP-FUEL INJECTION 4211878 - Caterpillar

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact skin.
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.
Park the machine on a level surface with front wheels straight ahead. Lower all attachments to the ground. Apply a slight downward pressure to the attachments. Center the articulation of the machine and install the frame lock pin. The frame lock pin must move freely in the frame. Move the front wheels to vertical and install the wheel lean locking bolt. Engage the parking brake. Stop the engine.
Illustration 1 g01297679
Clean the area around hydraulic oil filler cap (1) of any dirt or debris. This must be done before the hydraulic oil filler cap can be removed.
Slowly remove the hydraulic oil filler cap in order to relieve the tank pressure.
Clean the area around filter (2). This must be done before the filter can be removed.
Remove the filter with a strap type wrench. See Operation and Maintenance Manual, "Oil Filter - Inspect". Discard the used filter properly.
Clean the filter base. Check for any pieces of the seal from the old filter. Remove any pieces of the seal from the old filter.
Apply a thin coat of clean hydraulic oil to the seal of the new filter.
Install the new filter by hand until the seal of the new filter contacts the base. Note the position of the index marks on the filter in relation to a fixed point on the filter mounting base. Note: There are rotation index marks on the filter that are spaced 90 degrees or 1/4 of a turn away from each other. When you tighten the filter, use the rotation index marks as a guide.
Tighten the filter according to the instructions that are printed on the filter. Use the index marks as a guide for tightening the filter. For non-Caterpillar filters, use the instructions that are provided with the filter. Note: You may need to use a Caterpillar strap wrench, or another suitable tool, in order to turn the filter to the amount that is required for final installation. Make sure that the installation tool does not damage the filter.
Maintain the hydraulic oil level above the "MIN" mark on sight gauge (3).
Inspect the filler cap gasket. If the filler cap gasket is damaged, replace the filler cap gasket.
Install the hydraulic oil filler cap.