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Damper replacement
• Unlock and loosen the clamp nut by one turn fig.1.
• Unlock the damper block fig.2.
• Unlock the counter-nut fig.3.
• Loosen the counter-nut fig.4 until it hits the stop on the clamp nut
fig.1.
• Dismantle the damper block fig.2 while pulling on the axle fig.5.
• Grease the axle on refitting and reassemble in reverse order.
• Repeat the same operations for the damper blocks.
Damper adjustment
• Loosen counter nuts fig.3 and fig.4.
• Hold the axle fig 5. and turn the nut fig.4, until the damper block is
in position according to the adjustment table below.
Boom
TR4R 24 m
TR4R more than 24 m
µ
ATTENTION! Both dampers should have identical settings. To do this, the length of the axles should be equal with
respect to the brackets.
÷
NOTE! All damper blocks should be replaced at the same time.
Replacement and adjustment of dampers (LPA2 frame)
Damper replacement:
• Unfold the boom completely on flat ground.
• Loosen the 2 screws fig.1 to dismantle the dampers.
• Remove the screw fig.2 and the washer fig.4 and the damper fig.3.
• On reassembly, apply glue to the screws fig.2, then tighten them
until they make contact with the washer fig.4, and tighten to the
value shown in the table below.
• Fold the stop tab fig.5 over the head of the screw.
Boom
TR4 24 m
TR4R more than 24 m
Damper blocks
X (front)
2
203 mm
4
203 mm
Number of turns
3
1.5
5
3
4
Y (rear)
--
198 mm
6 - Maintenance
1 2
X
Y
1
2
5
3
4
97
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