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Adjusting the boom - general information
1. Before carrying out the adjustment, check the following points:
2. The sprayer must be correctly lubricated (see section "Greasing").
3. Hitch the sprayer to the tractor.
4. Both the tractor and sprayer must be on an even surface.
5. Unfold the boom.
6. Set the boom tilting to the neutral position.
IMPORTANT! For boom terminology voir The terminology for dual-fold booms is as follows page 20.
÷
The cylinders should be adjusted with no pressure in the hydraulic system.
±
WARNING! No one should stand under the boom during the various adjustment operations.
Anti-yaw device
If the boom whips (forward and backward horizontal movements),
the whip damper should be adjusted. To do this:
• Slightly tighten nuts (1) to increase the spring pressure on the
friction pads (2).
• Check the friction pads regularly and replace them if they are worn.
÷
Excessively tightening the anti-yaw device can reduce its
effectiveness.
Central frame locking device
The central frame is locked by two cylinders, one either side of it. To adjust the locking device, the boom must be unfolded
and the sprayer parked on a horizontal surface.
• Unlock the central frame (the cylinder rod is in)
• Loosen locknut (1) and screw the foot (2) all the way.
• Lock the central frame by operating the control. The cylinder rods
are all the way out.
• Unscrew the feet and, using your hands, support them on the
shims (3).
• Re-tighten locknut (1)
To prevent any damage to the locking device, the feet should press against the shims only moderately.
6 - Maintenance
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2
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