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Problem
The mast has stopped
moving downward.
TP-5418901-F
August 2020
Table 7-1 Troubleshooting Continued
Possible Cause
Damaged Motor
and Brake Cable.
Damaged or
inoperative Motor.
Malfunctioning
Universal Control Box.
Extension Nuts fail to
synchronize with
Drive Screw.
Original Instructions
S
AL O
TILETTO
PERATING
Possible Solution
Disconnect the Motor and
Brake Cable from the
mast. Inspect the cable for
continuity and shorts.
Replace faulty cable.
Replace the Motor.
Contact authorized service
center for evaluation and
possible return for repair.
Try raising the mast 76
mm (3 inches) and
approach that region
again. If this does not
work, the Extension Nuts
may be worn out and will
need to be replaced.
Try lowering the mast with
the Crank Handle
Assembly. There may be a
burr on the Extension Nut
and action with the crank
assembly, which is not
limited by the torque limits
of the Motor, may power
through it. If this does not
work, the Extension Nuts
may be worn out and will
need to be replaced.
I
NSTRUCTIONS
Continued
8-3
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