6 - Maintenance
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Readjustment boom - general info
Before beginning boom adjustments, please go through this check list:
1. The sprayer must be well lubricated (see part about lubrication).
2. Connect the sprayer to the tractor.
3. Place tractor and sprayer on level ground (horizontal).
4. Unfold boom.
5. Set tilt angle of both wings to horizontal position.
Adjustment of hydraulic cylinders are done without pressure in the system.
ATTENTION! See your Boom Operator’s manual supplied with your sprayer for detailed technical information and
service procedures specific to your boom configuration.
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WARNING! Nobody is allowed to be under the boom while adjustment is carried out. Never walk under the boom
unless it is safely folded and stowed on the transport brackets.
Wear bushing replacement on boom lift
Inspect and replace the wear bushings before they are worn through.
1. Connect the trailer to a tractor and unfold the booms to working
position.
2. Lift the boom center frame with a lifting device and support it until
the load is taken off the parallelogram arms.
3. Remove the screws (A), pull out the pins (B) at one of the upper
parallelogram arms and replace the wear bushings.
4. Refit the arm.
5. Repeat this procedure for the other upper arm.
6. The lower arms must be disconnected simultaneously.
7. Grease all grease nipples.
8. Remove the lifting gear.
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.
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 replacement on steering
If too much play is found in the steering, the wear bushings must be replaced. This should be done at your local HARDI® dealer.
Shield replacement on transmission shaft
See the manufacturer’s instruction book.
Replacement of transmission shaft cross journals
See the manufacturer’s instruction book.
A
B
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