Ingersoll Rand PALAIR Manual De Instalación Y Operación página 8

• All new, altered or modified equipment should be inspected and tested by personnel trained in safety, operation
and maintenance of this equipment to ensure safe operation at rated specifications before placing equipment in
service.
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.
Load Chain Reports
Records should be maintained documenting the condition of load chain removed from service as part of a long range load
chain inspection program. Accurate records will establish a relationship between visual observations noted during
frequent inspections and the actual condition of the load chain as determined by periodic inspection methods.
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 signs or abnormal
noises (grinding etc.) which could indicate a
potential problem. Make sure all controls function
properly and return to neutral when released.
Check chain feed through the hoist and bottom
block. If chain binds, jumps, is excessively noisy or
"clicks", clean and lubricate the chain. If problem
persists, replace the chain. Do not operate the hoist
until all problems have been corrected
2. HOOKS. Check for wear or damage, increased
throat width, bent shank or twisting of hook.
Replace hooks which exceed the throat opening
discard width shown in Table 2 (ref. Dwg.
MHP0040) or exceed a 10° twist (ref. Dwg.
MHP0111). If the hook latch snaps past the tip of
the hook, the hook is sprung and must be replaced.
Check hook support bearings for lubrication or
damage. Make sure they swivel easily and
smoothly. Repair or lubricate as necessary.
3. UPPER AND LOWER LIMIT DEVICE. Test
operation with no load slowly to both extremes of
travel. Upward travel must stop when the bottom
block or stop buffer on chain hits hoist limit arm or
switch. Downward travel must stop when the loop
at the unloaded end of the chain decreases and
activates the limit arm or switch.
INSPECTION
WARNING
(Dwg. MHP0040)
(Dwg. MHP0111)
4. AIR SYSTEM. Visually inspect all connections,
fittings, hoses and components for indication of air
leaks. Repair any leaks found. Check and clean
filters if equipped.
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