Maintenance — Planetary Axles Planetary Axles
6. Unscrew the filter cover (3, Figure 15).
Changing Planetary Axle Oil Replace the oil in the axles if it becomes contaminated, after the first 500 hours of service, and after 1500 hours or annually thereafter. 1. Warm the axles up to operating temperature. 2. Perform the “Mandatory Safety Shutdown Procedure” on page 4. The machine must be parked on a level surface. 1
3. Complete the “Changing Axle Wheel-Hub Oil” and the “Changing Axle Center Oil” procedures.
Changing Axle Wheel-Hub Oil Figure 17 – Hydraulic Oil Service (AL 500 series model shown)
NOTE: Removing the tires and raising the machine on jackstands can make hub oil changing easier. See “Raising Machine for Drive System Troubleshooting” on page 161.
1. Hydraulic Oil Filter
1. Rotate the oil drain/fill plugs (1, Figure 18) on the wheel hubs so they are positioned at the top as shown in the figure. Thoroughly clean the area around the plugs and slowly loosen and remove the plugs.
7. Remove the old filter element (1, Figure 17). 8. Clean the surface of the filter housing where the element seal contacts the housing. Put clean oil on the rubber gasket of the new filter element (1, Figure 17). 9. Install the new filter element (1, Figure 17). 10. Reinstall the drain plug.
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11. Reinstall the filter cover. 12. Refill the reservoir until the oil is between the two lines on the dipstick (1, Figure 15). 13. Start the engine and operate the hydraulic controls. 14. Stop the engine and check for leaks at the hydraulic oil filter and reservoir drain plug. 15. Check the oil level and add oil if necessary.
Figure 18 – Wheel-Hub Oil Drain Plug Removal Position 1. Wheel-Hub Oil Drain/Fill Plug
50940008/AP0311
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