JOINT-U 6V0094 - 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.
Illustration 1 g00626838
Attach a quick connecting hose to the drain valve on the steering hydraulic tank.
Open the drain valve.
Drain the oil into a suitable container. Close the drain valve and remove the quick connecting hose. Wash the Cap and the Filler Screen
Remove the tank filler cap.
Remove the retaining ring on the 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 screen, the retaining ring and the cap. Filling the Steering Hydraulic System
Fill the steering hydraulic tank. Refer to Operation and Maintenance Manual, "Lubricant Viscosities". Refer to Operation and Maintenance Manual, "Capacities (Refill)".
Illustration 2 g00626997
When the engine is not running, the oil level should be at the "FULL COLD" mark in the sight glass.
Use the engine shutdown switch to prevent the engine from starting. Crank the engine for approximately 15 seconds. The oil level will decrease as oil fills the steering system.
Add oil to the steering hydraulic tank in order to raise the oil level to the safe starting range.
Repeat Step 3 and Step 4 until the oil stabilizes at the "FULL COLD" mark in sight glass (1).
Lower the guard on the engine shutdown control. Start the engine. Operate the machine in order to warm the oil. Observe the oil level. Inspect the machine for leaks and make any necessary repairs.
Install the filler cap.
Check the oil level. Maintain the oil level to the "FULL WARM" mark in sight glass (1).
Stop the engine. If necessary, add oil.