CM-ET Hurricane 360 - Manual (Page 14)

14 10
Troubleshooting Chart
Symptom Possible Cause(s) Corrective Action
1. Hoist is hard to
operate in either
direction.
2. Hoist is hard to
operate in the
lowering 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.
A) Load chain worn long to gage, thus binding
between liftwheel and chain guide.
B) Load chain rusty, corroded or clogged with
foreign matter such as cement or mud.
C) Load chain damaged.
D) Liftwheel clogged with foreign matter or worn
excessively, causing binding between the lift-
wheel and chain guide.
E) Hand chain worn long to gage, thus binding
between handwheel and cover.
F) Handwheel clogged with foreign matter
or worn excessively, causing binding of chain
between the handwheel and cover.
G) Liftwheel or gear teeth deformed.
A) Brake parts corroded or coated 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.
A) Check gage of chain (See page 5). Replace
if worn excessively.
B) Clean by tumble polishing or using a non-
caustic type solvent. Lubricate with
Lubriplate® Bar and Chain Oil 10-R (Fiske
Bros. Refining Co.) or equal lubricant.
C) Check chain for gouges, nicks, bent
or twisted links. Replace if damaged.
D) Clean out pockets. Replace if worn
excessively.
E) Check gage of chain (See page 5).
F) Clean out pockets. Replace if worn
excessively.
G) Excessive overload has been applied.
Replace damaged parts.
A) Disassemble brake and clean thoroughly.(By
wiping with a cloth- not by washing in a sol-
vent). 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 page 7).
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 page 7).
C) See Item 4A.
D) Replace brake parts which are worn.
E) See Item 2A.