Gehl SL7600 Operator's Manual page 61

3. Remove the drain plug located on the bottom left of the oil reservoir.
Early Units:To drain the oil in earlier units, remove the belly plate and
disconnect the lowest fitting from the front of the hydraulic tank.
4. Change the oil filters.
5. Reinstall the drain plug (or fitting).
6. Refill the reservoir. Refer to the "Lubrication" topic (page 49) for oil
recommendations.
7. Start the engine and operate the hydraulic controls.
8. Stop the engine and check for leaks at the filters and reservoir drain plug.
9. Check the fluid level and add fluid if needed.
10. Reinstall the rear belly plate.
Bucket Cutting Edge
The bucket cutting edge should be replaced when it is worn to within 1"
(25 mm) of the bucket body.
Alternator/Fan 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 setting stabilizes
at the recommended setting 180 ft-lbs (244 N·m). When wheels are removed
and replaced, this procedure must be repeated.
Lift Arm Pivots
The lift arm pivot points should be torqued to 240 ft-lbs (325 N·m). Refer to
the Maintenance Interval Chart (page 71) for the service interval for the lift
arm pivots.
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