COVER GP-ACCESS 3904878 - Caterpillar

Hot oil and hot components can cause personal injury. Do not allow hot oil or hot components to contact the 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.
Operate the engine in order to warm the steering system oil. Prepare the machine for maintenance. Refer to Operation and Maintenance Manual, "Prepare the Machine for Maintenance".
Illustration 1 g03119125
Push the button on the breaker relief valve (1). The breaker relief valve is located on top of the steering hydraulic tank.
Slowly, remove filler cap (2) on the steering hydraulic tank in order to relieve the pressure. Install the filler cap after the tank has been drained. This will prevent dirt from entering the system.
Illustration 2 g02834217
Open drain valve (4) and drain the oil into a suitable container.
Close the drain valve.
Remove the filler cap and the retaining ring on the filler screen.
Remove the filler screen. Wash the cap and the screen in clean, nonflammable solvent. Allow the cap and the screen to dry.
Inspect the cap seal. Use a new seal if the used seal is damaged.
Install the filler screen and the retaining ring.
Fill the steering hydraulic tank and install the filler cap. The oil level must be within the green range of sight gauge (3) in illustration 1. Refer to Operation and Maintenance Manual, "Lubricant Viscosities". Refer to Operation and Maintenance Manual, "Capacities (Refill)".
Start the engine. Observe the oil level and inspect the machine for leaks. Stop the machine and make any necessary repairs.
Check the oil level in the steering hydraulic tank. When the engine is running and the oil is at operating temperature, maintain the oil level within the green range of the sight gauge. If necessary, add oil.