Troubleshooting Chart - CM 653 Serie Manual De Funcionamiento

Troubleshooting Chart

Symptom
Hoist is hard to operate
in either direction.
Hoist is hard to operate
in down direction.
Hoist is hard to operate
in up direction.
Possible Cause(s)
1. Load chain worn long to
gauge, thus binding between
liftwheel and chain guide roller.
2. Load chain rusty, corroded or
clogged with foreign matter
such as cement or mud.
3. Bushings or liftwheel rollers
clogged with matter such as
cement or dust.
4. Lever binding.
5. Brake parts corroded or
clogged with foreign matter.
6. Liftwheel pockets clogged with
foreign matter or worn excessively
causing chain to bind between
liftwheel and chain guide rollers.
7. Liftwheel twisted or bent - gear
teeth bent.
8. Check washer not in correct
position.
1. Brake adjusting nut is too tight.
2. Brake parts corroded or clogged
with foreign matter.
3. Chain binding.
1. Chain binding.
2. Overload.
Corrective Action
1. Check chain, (See page 6) and replace if worn
excessively.
2. 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.
3. Disassemble and clean liftwheel rollers and
bushings in gear cover and side plate (gear side).
Any parts worn excessively should be replaced.
4. Clean by removing any foreign matter which may
be between the lever and the brake cover.
5. Disassemble brake and clean thoroughly (by wiping
with a cloth - not by washing in a solvent). Replace
discs if too gummy, worn or scored. Keep discs and
brake surfaces clean and dry.
6. Clean out pockets and use if not worn excessively.
Replace liftwheel if pockets are worn.
7. Excessive overload had been applied. Replace
damaged parts.
8. Reposition check washer (See page 7).
1. See BRAKE ASSEMBLY, page 7.
2. Disassemble brake and clean thoroughly
(by wiping with a cloth - not by washing in a
solvent). Replace discs if too gummy, worn or
scored. Keep discs and brake surfaces clean
and dry.
3. Check chain, (See page 6) and replace if worn
excessively. 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
Bros. Refining Co.) or equal lubricant.
1. Check chain, (See page 6) and replace if worn
excessively. 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
Bros. Refining Co.) or equal lubricant.
2. Reduce load or use correct capacity unit.
10
Bar and Chain Oil 10-R (Fiske
®
Bar and Chain Oil 10-R (Fiske
®