Ingersoll Rand LV Serie Manual De Instalación Y Operación página 7

Lifting Load (UP Position - Haul In)
The following procedure assumes the hoist is in the NEUTRAL (center) position and the hook is attached to a load, but the
hoist is not supporting the load.
1. Place selector lever in the UP position.
2. Rotate the free knob clockwise.
3. Pull anchor end of load chain until slack is removed.
4. Rotate (ratchet) hand lever in the clockwise direction to raise (haul in) load.
• 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.
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 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
(Dwg. MHP0040)
6