Ingersoll Rand LV Serie Manual De Instalación Y Operación página 8

• Ratchet may not engage and raise (haul in) load until all chain slack is removed and hoist is
supporting load weight. If hand lever movement does not produce lifting, apply tension to the
anchor side of load chain while ratcheting until slack is removed and the hoist begins lifting the
load.
Lowering Load (DOWN Position - Pay Out)
The following procedure assumes the hoist selector lever is in the UP position, the hoist is holding a load
and the operator wants to lower (pay out) the load:
1. Place selector lever in the DOWN position. Indicator arrow will continue to point away from the free
chain notch.
2. Rotate (ratchet) hand lever in the counterclockwise direction to lower (pay out) load.
• To prevent injury or property damage always lower loads until the load chain becomes slack
before shifting to the NEUTRAL position.
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 Ingersoll-Rand service repair center. Do
not operate the hoist until all problems have been corrected.
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. 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 hooks swivel easily and smoothly. Repair or lubricate as
necessary.
NOTICE
CAUTION
INSPECTION
7