MAN-MINI-04
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© 2020 ALL MATERIAL HANDLING
30. Only operate the hoist with manual power.
31. After use, or when in a non-operational mode the chain hoist should be secured against
unauthorized and unwarranted use.
32. Do not leave a load suspended when the hoist is unattended or not in use.
STORING THE HOIST
1. Always store the hoist in a no load condition.
2. Wipe off all dirt and water and hang in a dry place.
3. Oil the chain, hook pins and hook latch pins.
4.
Before returning hoist to service follow instructions for ‘Hoists not in Regular Service’ in the
“INSPECTION”
Frequent and periodic inspections should be performed on equipment in regular service. Frequent
inspections are visual examinations performed by operators or service personnel during routine hoist
operation. Periodic inspections are thorough inspections performed by personnel trained in inspection
and maintenance of the hoist. Careful inspection on a regular basis will reveal potentially dangerous
conditions while still in the early stages, allowing corrective action to be taken before the condition
becomes dangerous.
Deficiencies revealed through inspection, or noted during operation, must be reported to an appointed
person. A determination must be made as to whether a deficiency constitutes a safety hazard before
resuming operation of the hoist.
Records and Reports
Some form of inspection record should be maintained for each hoist, listing all points requiring periodic
inspection. A written report should be made monthly on the condition of the critical parts of each hoist.
These reports should be dated, signed by the person who performed the inspection, and kept on file
where they are readily available for review.
Frequent Inspection
On a hoist in continuous service, frequent inspection should be made at the beginning of each shift. In
addition, visual inspections should be conducted during regular service for any damage or evidence of
malfunction.
1. OPERATION. Check for visual or abnormal noises which could indicate a potential problem. Do
not operate a hoist unless the load chain feeds through the hoist and hook block smoothly. Listen
for “clicking”, binding or malfunctioning. The clicking sound of the pawl on the ratchet gear is normal
when a load is being raised. If chain binds, jumps, or is excessively noisy, clean and lubricate the
chain. If problem persists, return the hoist to your nearest repair center. Do not operate the hoist
until all problems have been corrected. Check that hand chain moves freely and without binding or
excessive drag. Hook should stop moving when hand chain stops moving.
2. HOOK LATCH. Check operation of the hook latch. Replace if broken or missing.
3. HOOKS. Check for wear or damage, increased throat width, bent shank or twisting of hook.
Replace hooks which exceed the throat opening discard width (15%) shown in Table 1 (ref. Dwg.
H-01) or exceed a 10° twist (ref. Dwg. H-01). If the hook latch snaps past the tip of the hook, the
hook is sprung and must be replaced. Check hooks swivel easily and smoothly. Repair or lubricate
as necessary.
4. CHAIN (ref. Dwg. C-01). Examine each of the links for bending, cracks in weld areas or shoulders,
transverse nicks and gouges, weld splatter, corrosion pits, striation (minute parallel lines) and chain
wear, including bearing surfaces between chain links. Replace a chain that fails any of the
inspections. Check lubrication and lubricate if necessary. See ‘Load Chain’under LUBRICATION.”
5. LOAD CHAIN REEVING. Make sure welds on standing links are away from load sheave. Reinstall
chain if necessary. Check that the last link of the load chain is securely connected. Make sure chain
is not capsized, twisted or kinked. Adjust as required.
Periodic Inspection
Frequency of periodic inspection primarily depends on the severity of usage:
NORMAL
yearly
HEAVY
semi-annually
SEVERE
quarterly
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