6 - Maintenance
86
Vertical Alignment of Inner and Outer Sections
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ATTENTION! This alignment must be done before attempting to
do the “Over-Centre Boom Lock Adjustment” on page 87.
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This instruction applies for the connection between inner and
intermediate sections as well as for the connection between
intermediate and outer sections.
1. Unfold the boom.
2. Slightly loosen the nuts (A) and (C).
3. Begin with turning the eccentric bolts (B) and (D) so that their
punch mark in the side of the bolt head points outwards, i.e. it
points at the breakaway section on the boom.
4. Turn the eccentric bolts (B) and (D) the same way simultaneously
to obtain the right vertical alignment.
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ATTENTION! The upper eccentric bolt adjusts only half of the
adjustment, and the lower eccentric bolt adjusts the other half.
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ATTENTION! It is important to adjust the eccentric bolts
simultaneously and in same direction!
5. Tighten the nuts (A) and (C) again.
6. Fold the boom to see if it hits and rests correctly in the transport
brackets.
7. If necessary to adjust, slightly loosen the nuts (A) and (C) again.
8. Turn the eccentric bolts (B) and (D) simultaneously in opposite
directions, until the boom rests correctly in the transport bracket.
Bracket to boom clearance must be 8 mm.
9. Use a torque wrench to tighten the nuts (A) and (C) to 250 Nm.
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