Change Of Bulbs; Wear Bushing Renewal On Steering; Venting The Steering Hydraulics; Suspension Rubber Dampers (Optional) - Hardi NAVIGATOR PRO Original Instruction Book

6 - Maintenance

Change of bulbs

1. Switch off the light.
2. Loosen the screws on the lamp and remove the cover or lens.
3. Remove the bulb.
4. Fit a new bulb, refit the cover and tighten the screws.
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ATTENTION! If halogen bulbs are used, never touch the bulb with your fingers. Natural moisture in the skin will cause
the bulb to burn out when the light is switched on. Always use a clean cloth or tissue when handling halogen bulbs.

Wear bushing renewal on steering

If too much play is found in the steering, the wear bushes must be renewed. This should be done at your local HARDI dealer.

Venting the steering hydraulics

If the steering cylinder hydraulics have been dismantled it is necessary
to vent the cylinders.
1. Remove the dust cap from the venting screw (A) on the left side
steering cylinder.
2. Mount a clear 5 mm hose to the venting screw (A) and lead into a
catch can.
3. Open the venting screw (A) 1/8 turn and then steer fully to left
(retract cylinder).
4. Keep steering until air is no longer visible in the hose.
5. Close the venting screw (A) again.
6. Repeat the procedure for the right side cylinder.
7. Steer fully from left to right 8-10 times.
8. Do the venting procedure again to assure there is no air in the system.
9. Mount the dust caps to the venting screws (A) again.
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DANGER! Be careful when operating the track! Be sure there is space enough to steer the sprayer from side to side!
Only persons working on the sprayer is allowed in the moving area of the sprayer!

Suspension rubber dampers (optional)

If the shock absorbers loose their efficiency, they should be replaced.
1. Connect the sprayer to a tractor to prevent overbalancing.
2. Lift the rear end of the sprayer with e.g. a crane. Use lifting points as described in "Sprayer setup".
3. Loosen the nut below the suspension rubber dampers.
4. Remove the suspension rubber dampers and replace with new ones.
5. Tighten the nut below the suspension rubber dampers.
6. Lower the rear of the sprayer again.

Shield renewal on transmission shaft

See the manufacturer's instruction book.

Replacement of transmission shaft cross journals

See the manufacturer's instruction book.
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