88 50950106/AP0313
4. Replace the reservoir drain plug.
5. Clean any dirt/debris off the surface of
the filter housing.
6. Spin off the old hydraulic filter ele-
ment and spin on the new filter ele-
ment.
7. Lubricate the seal on the new filter
element with hydraulic oil before
installing.
8. Refill the hydraulic oil reservoir with
oil (if needed). Refer to the Lubrica-
tion chart (page 73).
Changing Hydraulic Oil
The hydraulic oil must be replaced if it becomes contaminated, after major
repairs and after 500 hours or one year of use.
1. Install a catch pan of sufficient capacity under the oil reservoir. See page 73.
2. Open the reservoir drain plug (Figure 47), and allow the oil to drain.
3. Reinstall the drain plug.
4. Change the oil filter.
5. Refill the reservoir. Refer to the Lubrication chart (page 73).
6. Start the engine and operate the hydraulic controls.
7. Stop the engine and check for leaks at the filter and reservoir drain plug.
8. Check the fluid level and add fluid, if needed.
Bucket Cutting Edge
The bucket cutting edge should be replaced when it is worn to within 1 in.
(25 mm) of the bucket body.
Alternator Belt
Refer to the separate engine manual for setting proper belt tension. If the belt is
worn, cracked or otherwise deteriorated, replace the belt following the procedure
in the engine manual.
Wheel Nuts
Wheel nut torque must be checked before initial operation and every two hours
thereafter until the wheel mounting hardware torque remains at 180 ft.-lbs.
(244 N·m). When wheels are removed and reinstalled this procedure must be
repeated.
Figure 47 Hydraulic Oil
Drain Plug
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