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TROUBLESHOOTING CHART
Symptom
1. Hoist is hard to operate in either direction.
2. Hoist is hard to operate in down direction.
3. Hoist is hard to operate in the hoisting direction.
4. Hoist will not operate in either direction.
5. Hoist will not operate in the lowering direction
6. Hoist will not operate in the hoisting direction
7. Hoist will not hold load in suspension.
Possible Cause(s)
A. Load chain worn long to gauge, thus binding
between liftwheel and chain guide.
B. Load chain rusty, corroded or clogged with
foreign matter such as cement or mud.
C. Bushings clogged with matter such as cement
or dust.
D. Lever binding.
E. Brake parts corroded or clogged with
foreign matter.
F. Liftwheel pockets clogged with foreign matter or
worn excessively causing chain to bind between
liftwheel and chain guide.
G. Liftwheel twisted or bent - gear teeth bent.
A. Brake parts corroded or clogged with
foreign matter.
B. Brake not properly adjusted.
C. Chain binding.
A. Chain binding.
A. Driver or stops on handwheel broken.
B. Gears jammed
A. Locked brake due to a suddenly applied load,
shock load, or load removed by means other than
by operating unit in the lowering direction.
B. Chain binding
C. Lower hook all the way out. Load chain
fully extended.
A. Chain binding
B. Overload
A. Lower hook or load side of chain on wrong
side of liftwheel.
B. Brake not properly adjusted.
C. Driver or stops on handwheel broken.
D. Worn brake parts.
E. Oily, dirty or corroded brake friction surfaces.
17
Corrective Action
A. Check chain, (See pages 9 and 10) and replace
if worn excessively.
B. Clean chain by tumble polishing or using a
non-acid or non-caustic type solvent. Check
chain for gouges, damaged or bent links.
Lubricate with Lubriplate
Bar and Chain Oil
®
10-R (Fiske Bros. Refining Co.) or equal lubricant.
C. Disassemble and clean liftwheel bushings and
bushings in gear cover and side plate (gear side).
Any parts worn excessively should be replaced.
D. Clean by removing any foreign matter which may
be between the lever and the brake cover.
E. Disassemble brake and clean thoroughly (by wiping
with a cloth - not by washing in a solvent). Replace
ratchet assembly if too gummy, worn or scored.
Keep brake surfaces clean and dry.
F. Clean out pockets and use if not worn excessively.
Replace liftwheel if pockets are worn.
G. Excessive overload had been applied.
Replace damaged parts.
A. Disassemble brake and clean thoroughly.
(By wiping with a cloth- not by washing in a
solvent). Replace brake disc if gummy, visibly
worn or coated with a foreign matter. Keep brake
disc and brake surfaces clean and dry.
B. Readjust brake (See pages 9 and 10).
C. See Items 1A, 1B and 1C.
A. See Items 1A, 1B and 1C.
A. Replace damaged part.
B. Inspect for foreign matter in gear teeth.
A. With hoist under load keep chain taut, pull
sharply on hand chain in the lowering direction
to loosen brake.
B. See Items 1A, 1B and 1C.
C. Chain taut between the liftwheel and loose end
connector. Operate unit in hoisting direction only.
A. See Items 1A, 1B and 1C.
B. If handwheel slips while operating, reduce load or
use correct capacity hoist.
A. Lower hook must be on same side of liftwheel
as upper hook
B. Readjust brake (See pages 9 and 10t).
C. See Item 4A.
D. Replace brake parts which are worn.
E. See Item 2A.
P/N 10001646 Rev. AA
June 2015
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