KITO CX005 - Page 36

36
Symptom Cause Action
Sometimes fails to lift load.
Pawl sounds weak.
Pawl sounds irregularly.
• Pawl Spring Assembly lacks spring, or
breaks.
• Pawl does not return to original
position due to accumulated rust
(corrosion).
Replace Pawl Spring Assembly.
Perform disassembly inspection regularly.
• Missing Pawl Spring Assembly causes
poor return.
• Poor return of Pawl due to mis-
assembly. (Pawl Spring is caught
between the step of Pawl Shaft and
the Pawl.)
Reassemble the hoist correctly.
When reassembly is completed, be sure to
perform an operational test, and check that
the pawl sounds click.
• Frequently extended use causes Pawl
or Ratchet Disc to wear with poor
engagement.
Replace Pawl Spring Assembly.
Perform disassembly inspection regularly.
Hand Chain slips.
• Abrasion of sprocket of Hand Wheel.
• Elongation or abrasion of Hand Chain.
• Wrong size of Hand Chain.
Replace Hand Wheel Assembly.
Perform disassembly inspection regularly.
Use proper Hand Chain.
Lift a load normally but
Pawl clicking sounds
are weak (with regular
clicks).
• Weakened or broken Pawl Spring
Assembly causes insufcient force of
Pawl.
Replace the Pawl Spring Assembly.
Perform disassembly inspection regularly.
• Poor return of Pawl due to mis-
assembly. (Pawl Spring is caught
between the step of Pawl Shaft and
the Pawl.)
Reassemble the hoist correctly.
When reassembly is completed, be sure to
perform an operational test, and check that
the pawl sounds click.
Heavy pulling force at
no load (with occasional
squeaking sound).
• Poor gear engagement.
• Abrasion of gear tooth ank.
• Lack of lubricant caused by a long-
term negligent maintenance may
result in abrasion or breakage.
Replace Gear.
Perform disassembly inspection regularly.
Lift load only halfway
but not further.
• Load Chain of the Bottom Hook or
Hand Chain is entangled or twisted.
Be sure to check that the Bottom Hook is not
entangled or twisted with the Load Chain or
Hand Chain.
• The Overload Limiter (OLL: a device
to prevent an excessive overload) is
activated.
Reduce the load to less than the rated load.
a
b
Length when purchased (guideline)
Rated load (t) a b
0.25 14.2 2.5
0.5 20 3.5