Readjustment Boom - General Info; Boom Lift Adjustment; Glide Shoes - Yaw Damping - Hardi MASTER PRO VHH Instruction Book

6 - Maintenance

Readjustment boom - general info

Before commencing adjustment jobs please go through this check list.
1. The sprayer must be well lubricated (see section about lubrication).
2. Connect the sprayer to the tractor.
3. Place tractor and sprayer on level ground (horizontal).
4. Unfold boom.
5. Set slanting angle to neutral position (horizontal).
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ATTENTION! For information on boom terminology see "Boom and terminology" on page 22.
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NOTE! Adjustment of hydraulic cylinders is to be carried out without pressure in the system.
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WARNING! Nobody is allowed to be under the boom whilst adjustment is carried out.

Boom lift adjustment

If slack occurs (backwards and forwards movements of the boom) the
slide arrangements (A) should be adjusted:
1. Begin by loosening the counternuts (B).
2. Each slider arrangement (A) is adjusted by means of a bolt (C).
Adjust the slider arrangements until same clearance has been
reached at all 4 sliders and the boom carrier runs freely without
play.
3. Tighten counternuts (B) again.
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ATTENTION! It is very important that the boom carrier does not
run unequally in the H-frame, and also important that there is no
play in any of the sliders.

Glide shoes - yaw damping

If slack occurs (backwards and forwards movements of the boom)
adjustment of yaw damping is needed. This is done by slightly
tightening the bolts (A). Be carefull not to overtighten or squeeze the
rubber bushings (B). Only tighten until there are no more play!
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