Boom
maintenance - Adjustments
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Boom opening dampers If adjustment is necessary check there is no hydraulic pressure in the ram then slacken off the lock-nut on the damper (fig. 32) and turn the dome shaped nut on the end clock-wise to extend it out.
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Outer fold rams
These rams should be adjusted so
that the outer section of the boom folds in tightly against the
rubber bump stops on the inner section. If adjustment is necessary check there is no hydraulic pressure in the ram then slacken the locking nut on the ram rod and turn the ram rod anti-clockwise with a suitable spanner, this will fold the boom in tighter.
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When the booms are fully open the
outer sections should be angled very slightly forwards, if they are
not adjust the locking stud near the hinge point. The boom should the
tight against the head of this stud when fully open.
If adjustment is necessary slacken
the locking nut on the stop stud and turn the stud clockwise with a
suitable spanner. This will move the boom further forwards. Remember to always re-tighten locking nuts after adjustment. |
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Outer Boom rests (18-24m)
The outer boom
rests support the outer boom sections whilst transporting and whilst
spraying at 12 metres. It is most important that the rest takes the
weight of the outer section when it is folded in. When starting off
and climbing hills ensure the outer sections do not move back off the
rests or serious damage to the outer hinge points may result.