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Horizontal Alignment of Inner Sections
For booms of 27-30 meters with mechanical pivot joint.
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. Loosen the two Allen bolts (A). Key size: 8 mm.
2. Loosen the counter nut (B). Key size: 30 mm
Turn the pin bolt (D). Key size: 13 mm
• To bring the boom forwards (B):
Turn the pin bolt counterclockwise and tighten the counter nut.
Torque = 250 Nm.
To bring the boom backwards (C):
Loosen the counter nut and turn the stop bolt clockwise.
Tighten the counter nut when finished adjusting.
3. 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.
4. Check the length (E) of the rubber piece: 70 - 74 mm.
When this is correct, tighten the bolts (A).
5. Loosen the bolts and counter nuts (F).
6. Adjust the steel piece (G) sideways, so there is equal leeway (H).
7. Tighten the bolts (F) when finished.
6 - Maintenance
B
C
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