1.
Place selector lever in DOWN position.
2.
Rotate (ratchet) hand lever in counterclockwise direction to lower load.
CAUTION
•
To prevent injury or property damage always lower loads until load chain becomes slack before shifting
to NEUTRAL position.
WARNING
•
Do not continue lowering hoist after chain anchor has contacted hoist body. Hoist damage may occur
resulting in a falling load which can cause severe injury, death or property damage.
Slip Clutch Operation
Hoists are equipped with a slip clutch. When trying to lift a load that exceeds capacity of hoist, the hand lever will rotate
but the load will not be lifted. The overload clutch was set to slip at a nominal setting of 150% of rated load with a
range of ±20%.
INSPECTION
Inspection information is based in part on American Standards of Mechanical Engineers Safety Codes B30.21.
WARNING
•
All new or repaired equipment should be inspected and tested by Ingersoll Rand trained technicians to
ensure safe operation at rated specifications before placing equipment in service.
•
Never use a hoist that inspection indicates is damaged.
Frequent and periodic inspections should be performed on equipment in regular service. Frequent inspections are
visual examinations performed by operators or Ingersoll Rand trained inspectors and include observations made
during routine equipment operation. Periodic inspections are thorough inspections conducted by Ingersoll Rand
trained technicians.
ASME B30.21 states inspection intervals depend upon the nature of the critical components of the equipment and the
severity of usage. Refer to ‘Inspection Classifications’ chart and ‘Maintenance Intervals’ chart in Product Maintenance
Information Manual for recommended maintenance intervals. 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 designated personnel
trained in safety, operation and maintenance of this hoist. A determination as to whether a condition constitutes a
safety hazard must be decided, and the correction of noted safety hazards accomplished and documented by written
report before placing the hoist in service.
Frequent Inspection
On hoists 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.
Operations. Check for visual signs or abnormal noises which could indicate a potential problem. Do not operate
a hoist unless the 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, the chain and load sheave
may have to be replaced. Do not operate the hoist until all problems have been corrected.
Form 48488878 Edition 2
7
