Hardi MEGA VPZ NK Original Instruction Book page 146

6 - Maintenance
4. Turn the eccentric bolts (B) and (D) the same way simultaneously
to obtain the right vertical alignment.
ATTENTION! The upper eccentric bolt adjusts only half of the
adjustment, and the lower eccentric bolt adjusts the other half.
It is important to adjust the eccentric bolts simultaneously and in
same direction!
5. Tighten the nuts (A) and (C) again after alignment.
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.
Clearance between bracket and boom must be 8 mm.
9. Use a torque wrench to tighten the nuts (A) and (C) to 250 Nm.
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