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A6. TROUBLE SHOOTING
NOTE: A maintenance program should start for
each hoist immediately after it is entered
into service.
This maintenance program should comply
with recommendations in the applicable
parts and Instruction Manual, and all per-
tinant Federal, State, Provincial and Local
regulations.
A7. INSPECTIONS and MAINTENANCE
If you cannot
fi
nd a trouble’s cause, contact the supplier.
A6.4 BS/BSO Secondary Brake Troubles
Problem
Cause
Remed
y
1. Hoist goes up but not down BS/BSO secondary brake is closed
a) Primary wire rope has run out
a)
WARNING: STOP DOWNWARD TRAVEL!
or has failed.
Proceed according para. A5.4, (3), page 30.
b) Platform has hit an obstruction
b)
WARNING: STOP DOWNWARD TRAVEL!
Go up until the hoist supports the load,
and clear the obstruction.
Details in para A5.4, (4), page 31.
2. BS/BSO secondary brake
a) Mechanical defect.
a) Contact the supplier.
automatically
closes
without apparent reason.
b) Oversized or damaged wire rope
b) Check wire rope and replace, if necessary.
3. Unit will climb but
Closed Secondary Brake
Power up approximately 6 inches while depressing.
will not descend.
blocstop
TM
control lever to open.
4. Excessive wire rope
a) Worn Guide Bushing.
a) Replace inlet and outlet bushings if worn.
wear.
b) Rigging
b) Rigging alignement - wire rope must pass
straight through hoist, not at an angle.
WARNINGS!
Avoid injuries:
1. Checks and repair of the elec-
tric equipment must only be carried out
by QUALIFIED ELECTRICIANS!
Wiring diagrams are shown in the control box
of the motor.
2. DO NOT OPEN ANY CONTROL BOX OR PEN-
DANT CONTROL WITH POWER SUPPLY TO
HOIST!
3. Any other repair should only be carried out
by the supplier (TRACTEL Group Company) or
by a quali
fi
ed person, and only original spare
parts shall be used.
6.1 Wire Rope Drive Mechanism Troubles
6.2
Motor
Troubles
(see pages 16 to 17)
6.3 Primary Brake Troubles
Regular inspections should be followed for the
life of the hoist and written inspection records
kept as speci
fi
ed.