MAINTENANCE
1202
Changing Hydraulic Oil: New Style 1. Position the excavator on a level surface.
Figure 5-34 Excavator Position for Checking and Changing Hydraulic Oil 3
2. Fully extend the bucket and boom, and retract arm as shown in Figure 5-34.
Figure 5-36 Rotate the cab
3. Lower the bucket and dozer blade to the ground. See Figure 5-34. Shut off the engine. Remove the ignition key and take it with you.
7. Follow “Mandatory Safety Shutdown Procedure” on page 11. 8. Crawl underneath the chassis between the tracks. See Figure 5-36.
4. Slowly open the filler cap (1) to relieve pressure. Remove the cap and clean debris out of the strainer. See Figure 5-35.
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9. Open the drain plug (3) and drain oil into a suitable container. Re-install drain plug and tighten securely. See Figure 5-37.
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Figure 5-35 Hydraulic Oil Tank Cover 5. Remove the hydraulic oil tank cover (2). See Figure 5-35.
Figure 5-37 Hydraulic Oil Tank Plug
IMPORTANT:Always dispose of hydraulic
6. To access the hydraulic oil tank drain plug (3), rotate the cab to an angle of slightly less than 45°, as shown. See Figure 5-36.
fluids according to environmental laws or take to a recycling center for proper disposal. DO NOT pour onto the ground or down a drain. 10. Remove bolts and filter cover (4). Remove and discard old filter (5). Install the new filter (5) into reservoir. See Figure 5-38.
908170/BP0307
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Printed in U.S.A
