SETUP AND INSTALLATION 2250 OPERATOR MANUAL
4-56
Published 06-24-16, Control # 241-01
5. Raise the boom 76 to 102 mm (3 to 4 in) off the blocking
to ensure that the backhitch is properly tensioned.
6. Disengage the backhitch pins with the switch on the
remote control. Hold the backhitch pins switch in the
disengaged position until the gantry has been lowered
onto the gantry cylinders in step 8
.
7. Visually check that both pins are fully engaged. If either
pin fails to engage, determine the possible cause of the
problem:
• Pin damaged
• Air/electric fault
8. Boom down to lower the gantry until it comes to rest on
the gantry cylinders (the boom will lower onto the
blocking first, then the gantry will lower).
9. Retract the gantry cylinders with the switch on the
remote control to lower the gantry until the cylinders are
fully retracted. Pay out the boom hoist wire rope to keep
the rope slack as the gantry lowers.
10. Select and confirm the desired operating mode with the
crane mode selector.
11. Unplug the crane setup remote control from the junction
box and store the remote control.
CAUTION
Gantry or Boom Damage!
Do not disengage the backhitch pins until the backhitch is
tensioned. The gantry can fall violently. Structural damage
to the gantry or boom will occur.
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