6 - Maintenance
6.15
Adjusting boom level to ground
Unfold the boom and check that the boom sections are parallel to the
center frame and level to the ground. Adjust if necessary, as described
below. Adjustment is carried out with the boo
m unfolded.
For SPB-HY & SPC-HY models the following procedure is used:
1. Loosen lock nut (A).
2. Adjust nut (B) - in or out - until boom wing is level to the ground.
3. Secure lock nut (A) again. Same procedure appl
ies to both sides.
For SPB-HZ & SPC-HZ models the following procedure is used:
1. Ensure that cylinder is fully extended.
2. Loosen jam nut (A).
3. Apply an adjustable wrench to the machined surface at (B).
4. Turn the cylinder rod unt
il boom is level to the ground.
5. Secure jam nut (A) again. Same procedure applies to both sides.
Adjusting rear cable
1. Raise boom to its highest position. Fold it to transport position
with tilt cylinders fully extended. Make sure that fold cylinders are
pressurized and that the boom is folded all the way in.
2.
Ensure the boom transport brackets are in contact with the outer
wing. Adjust if necessary.
3. Loosen the jam nuts (E) on the ends of turnbuckle (F). Adjust the
turnbuckle (F) so that the outer section contacts the boom
transport bracket.
SPB boom (45-66’): Turn the turnbuckle another 4 complete turns.
SPC boom (80-100’): Turn the turnbuckle another 3 complete turns.
4. Secure jam nuts (E) again.
±
WARNING! The rear cable can snap and injure you or someone else if tensioned when the boom is unfolded. Always
adjust the front cable first - with the boom unfolded and the rear cable last - with the boom folded in trans
port
position.
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