CAUTION
•
To avoid damaging the pendant hose, make sure the strain relief cable, not
the pendant hose, is supporting the weight of the pendant.
OPERATION
It is recommended that the user and owner check all appropriate and applicable
regulations before placing this product into use. Refer to Product Safety Information
Manual.
The hoist operator must be carefully instructed in his or her duties and must
understand the operation of the hoist, including a study of the manufacturer’s
literature. The operator must thoroughly understand proper methods of hitching
loads and should have a good attitude regarding safety. It is the operator’s
responsibility to refuse to operate the hoist under unsafe conditions.
WARNING
•
The hoist is not designed or suitable for lifting, lowering or moving people.
•
Never lift loads over people.
•
The hook latch is intended to retain loose slings or devices under slack
conditions. Use caution to prevent the latch from supporting any of the
load.
•
Refer to Product Safety Information Manual for general operation
information.
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Hoist Controls
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Pendant Operation
The pendant is a remote control that allows the operator to control the positioning
of a load. The pendant can have from two to six functions. The two-function pendant
will control hoist movement in the UP and DOWN direction. A four-function pendant
will control trolley movement along the support beam and hoist operation. A six-
function pendant would include the above movements plus control a bridge
assembly allowing hoist movement in four directions. Always apply smooth even
pressure during operation, avoid quick starts and abrupt stops. This will allow
smoother control of suspended loads and reduce undue stress on components.
Remote Two Function Pendant (Without Emergency Stop)
Refer to Dwg. MHP2398 on page 10, A. Red — Air Supply; B. Green; C. Yellow; D.
Payout Load; E. Haul-In Load.
Remote Two Function Pendant (With Emergency Stop)
Refer to Dwg. MHP1649 on page 10, A. Pendant Handle; B. Emergency Stop Button;
C. “ON” Button; D. Function Levers.
Remote Four Function Pendant (Shown only with Emergency Stop)
Refer to Dwg. MHP1547 on page 11, A. Pendant Handle; B. Emergency Stop
Button; C. “ON” Button; D. Hoist Control Levers; E. Trolley Control Levers.
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Emergency Stop (optional feature)
Refer to Dwgs. MHP1649 on page 10 and MHP1547 on page 11.
The Emergency Stop button, when activated, will immediately stop all operations
of the trolley and hoist. The Emergency Stop button will remain depressed after
activation. To reset Emergency Stop button, twist (rotate) Emergency Stop button
clockwise until button releases and spring returns to its original position. Depress
“ON” button.
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Rope Control (optional feature)
The rope control provides the operator with a local hoist operating station. The
following directions are as viewed from the motor end of the hoist, facing the rope
control. Refer to Dwg. MHP3043 on page 10, A. Down; B. Up.
1. To lift a load, pull down on the right rope.
2. To lower a load, pull down on the left rope.
3. Pull rope to full travel for maximum speed. Pull rope partially for slower speeds.
4. To stop lifting or lowering, release rope. Hoist motor will stop.
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Storing the Hoist
1. Always store the hoist in a no load condition.
2. Wipe off all dirt and water.
3. Oil the chain, hook pins and hook latch.
4. Place in a dry location.
5. Plug hoist air inlet port.
6. Before returning hoist to service, follow instructions for ‘Hoists Not In Regular
Use‘. Refer to the “INSPECTION” section on page 6.
INSPECTION
1. Check hoist for oil leaks daily. Immediately repair any leaks.
2. At the beginning of each shift operate the hoist in both directions without a load.
Ensure the motor runs free, and that the brake(s) do not drag.
3. Keep hoist housings clean of dust and dirt build up which may cause heat build
up and sparks.
Inspection information is based in part on American Standards of Mechanical
Engineers Safety Codes B30.16.
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 B30.16 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 to ensure corrective action is taken. A
determination as to whether a condition constitutes a safety hazard(s) must be
decided, and the correction of noted safety hazard(s) accomplished and
documented by written report before placing the equipment in service.
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Frequent Inspection
On equipment in continuous service, a ‘Daily Inspection’ should be made by the
operator at the beginning of each shift and a ‘Quarterly Inspection’ (90 days) should
be conducted during regular service for any damage or evidence of malfunction.
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Daily Inspection
Complete inspections prior to start of daily tasks. Conduct visual inspections during
regular operation for indications of damage or evidence of malfunction (such as
abnormal noises).
1.
Lubricator. Adjust air line lubricator drops (ISO VG 32 [SAE 10W]) per minute to
2 to 3 during hoist operation.
2.
Surrounding Area. Visually check hoist for oil leaks. Do not operate hoist if
leaking oil is found. Ensure surrounding area has no slippery surfaces and is
obstruction free.
3.
Hoses and Fittings. Visually inspect for damage, air leaks, and loose
connections. Repair all leaks or damage and tighten loose connections prior to
starting daily tasks.
4.
Hoist. Check for visual signs or abnormal noises (grinding, etc.) which could
indicate a potential problem. Make sure all controls function properly. Check
chain feed through hoist and bottom block. If chain binds, jumps, is excessively
noisy or “clicks,” clean and lubricate chain. If problem persists, replace chain. Do
not operate hoist until all problems have been corrected.
5.
Upper and Lower Limit Device. Test operation with no load slowly in both
extremes of travel. Upward travel must stop when stop buffer on the bottom
block hits hoist limit switch. Downward travel must stop when the stop buffer
attached to the end of the unloaded load chain decreases and activates limit
switch.
6.
Controls. During operation of the hoist, verify that response to pendant is quick
and smooth. Ensure controls return to neutral when released. If hoist responds
slowly or movement is unsatisfactory, do not operate the hoist under load
conditions until all problems have been corrected.
7.
Brake. During operation test brake. Brake must be capable of supporting load
without slipping. Brake must release when control returns to neutral. If brake
does not hold load or does not release properly when pendant is not being used,
brake must be further inspected. Refer to Product Maintenance Information
Manual.
WARNING
•
Worn or improperly functioning brakes may cause excessive heat build up
and sparks.
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Form MHD56296 Edition 5
