6 - Maintenance
177
Horizontal Alignment of Inner Sections
This alignment is to compensate for the wind resistance when driving with an unfolded boom, as well as keeping a good
balance in the boom when driving on uneven fields. The boom is adjusted relatively to the direction of driving.
Steps for adjustment:
1. Turn the stop bolt (A). Wrench = 30 mm.
• To bring the boom forward (B):
Turn the stop bolt counterclockwise and tighten the counter nut.
Torque = 250 Nm.
• To bring the boom backward (C):
Loosen the counter nut and turn the stop bolt clockwise.
2. Stand near the boom centre and look towards the boom end.
Compared to being on a perpendicular line to the direction of driving, the boom should now be adjusted a little
forward (B).
The boom tip must be between 100 and 450 mm ahead of the
perpendicular line.
3. When the plunger cylinder (D) is fully pressurized, the piston stroke
(E) must not exceed 38 mm. Adjust the stop bolt (A) accordingly.
4. Adjustment is completed, when the boom is aligned within the
range mentioned in step 2. After aligning other boom sections,
check if realigning is needed here.
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