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Hot oil and components can cause personal injury. Do not allow hot oil or components to contact skin. |
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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 machine for a few minutes in order to warm the hydraulic system oil.
- The machine should be level. Lower the bucket to the ground and apply slight downward pressure. Engage the parking brake and stop the engine.
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Illustration 1 g01038716 - Hydraulic tank filler cap (1) is located on the right side of the machine.
- Remove hydraulic tank filler cap (1).
- Hydraulic tank drain valve (4) is located at the bottom of the hydraulic tank. Remove the bottom guard in order to access the drain valve. Open the drain valve and allow the hydraulic oil to drain into a suitable container.
- Close drain valve (4).
- Fill the hydraulic system oil tank.
Reference: Refer to Operation and Maintenance Manual, "Lubricant Viscosities and Refill Capacities".
- Inspect the gasket on the hydraulic tank filler cap for damage. Replace the gasket, if necessary. Install the hydraulic tank filler cap.
- Start the engine and run the engine for a few minutes.
- Maintain the hydraulic oil level between lines (2) and (3) on the sight gauge. Add oil, if necessary.
Note: The oil must be free of bubbles. If bubbles are present in the oil, air is entering the hydraulic system. Inspect the suction hoses and hose clamps.
- Stop the engine.
