-10-
Problem
Cause and explanation
Remedy
The hoist will not lift
the load (no clicking
sound).
Pawl not engaging with ratchet disc; possible
contamination with dirt or foreign material.
Clean and lubricate the
pawls and ratchet disc
assembly.
Pawl spring is damaged.
Replace pawl spring.
Ratchet spring is loose or damaged.
Tighten or replace
ratchet spring.
Load slips or drifts
while being lowered.
Dirt or corrosion or foreign material in hoist
components.
Inspect and correct
problem. Keep hoist
clean and lubricated.
The brake is slipping. Friction discs are worn
from long term use, or are damaged from
overloading or misuse.
Replace friction disc. See
chapter 5. INSPECTION
for minimum allowable
thickness. Do not
overload the hoist.
The load drops the
instant lowering is
started.
The braking surface is dirty. During assembly, the
braking surface must be wiped clean of dirt.
Clean or replace the
brake assembly.
The braking surface is oily. The braking surface
must not be allowed to become soiled with
grease or machine oil because it is a dry type
brake.
Clean or replace the
brake assembly.
The hoist will not
lower the load.
The brake has caught. (Hoist was left under
loaded condition for an extended period, or was
shock loaded while in operation.)
Place selector lever in
DOWN position and pull
hard on the lever handle
to re-set the brake.
Resume operation.
Brake components are corroded or damaged.
Replace damaged
components; keep hoist
clean and lubricated.
The chain is tight
when lifting, even
without a load.
(A squeaking noise
can be heard at
times.)
Gear teeth are worn from long term use, or for
not being greased regularly.
Disassemble and replace
the load gear, gear case
and side plate.
7. Troubleshooting
Any maintenance or repair of the lever hoist should be performed by properly
trained
personnel.
WARNING!
