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Limit Switch
Operate winch in both directions to activate limit switches. Limit switches should
engage at established s/- 2 ft (0.7 m), and prevent winch operation until
reset by shifting winch operating direction.
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Adjustments
Refer to Dwg. MHP2688 on page 12,
A.
Center Nut;
B.
Payout;
C.
Haul-In.
To adjust set points:
Follow instructions in the order they appear for limit switch adjustment
(use two
people to make adjustments):
NOTICE
• These adjustments are for underwound wire rope applications only.
1. Remove cap from limit switch cover.
2. Unscrew center nut slightly.
3.
PAYOUT:
Rotate (1) screw clockwise while slowly paying out until winch shuts
off.
4.
HAUL-IN:
Rotate (2) screw counterclockwise while slowly hauling in until winch
shuts off.
5. Tighten center nut.
6. Reinstall cap on limit switch cover and tighten.
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Motor
For optimum performance and maximum durability of parts, provide recommended air
supply as measured at motor inlet. Refer to Table 2 ‘General Specifications’
on page 4. The air motor should be installed as near as possible to compressor or air
receiver.
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Initial Winch Operating Checks
Winches are tested for proper operation prior to leaving the factory. Before the winch
is placed into service the following initial operating checks should be performed.
1. When first running motor, inject light oil into inlet connection to provide initial
lubrication.
2. When first operating the winch, it is recommended that motor be driven slowly
in both directions for a few minutes.
3. Check Emergency Stop operation. Refer to “OPERATION” section on page 6.
4. Check Limit Switch operation. Refer to “OPERATION” section on page 6.
For winches that have been in storage the following start-up procedures are required.
1. Give winch an inspection conforming to the requirements of ‘Winches Not in
Regular Use’ in “INSPECTION” section on page 9.
2. Pour a small amount of ISO VG 32 (SAE 10W) oil in motor inlet port.
3. Operate motor for 10 seconds in both directions to flush out any impurities.
4. Check to ensure oil levels are “full.”
5. The winch is now ready for normal use.
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 before operating product.
The four most important aspects of product operation are:
1. Follow all safety instructions when operating the product.
2. Allow only people trained in safety and operation of this winch to operate this
equipment.
3. Subject each product to a regular inspection and maintenance procedure.
4. Be aware of product capacity and weight of load at all times.
WARNING
• Do not lift loads over people.
CAUTION
• Verify limit switch operation to ensure man riding device does not contact
sheave.
NOTICE
• Refer to Product Parts Information Manual for drawings unless specified
elsewhere.
Operators must be physically competent. Operators must not have a health condition
which might affect their ability to act, and they must have good hearing, vision and
depth perception. The winch operator must be carefully instructed in his duties and
must understand the operation of the winch, including a study of the manufacturer’s
literature. The operator must thoroughly understand proper methods of hitching loads
and must have a good attitude regarding safety. It is the operator’s responsibility to
refuse to operate the winch under unsafe conditions.
1. Lifting and lowering speeds are operator controlled and should be as slow as
practical.
Ingersoll Rand
recommends that you do not exceed 100 ft (30 m) per
minute. Any applicable codes and standards should be followed.
2. Personnel being lifted or lowered must be alert to obstacles and hazards during
movement.
3. A personnel platform should not be used due to winches rated load.
4. Tag lines shall be used where practical.
5. The winch operator shall remain at the controls at all times when handling
personnel.
6. Handling of personnel shall be discontinued upon indication of any impending
danger.
WARNING
• Maintain at least 3 wraps of wire rope on the drum at all times.
7. The man riding device shall be raised approximately 1 ft (30 cm) and inspected
to ensure that it is secure prior to personnel occupancy. Before raising or lowering
personnel, the following conditions shall exist:
a. Wire rope shall be free of kinks.
b. Winch shall be reeved for single part line which avoids obstructions and
interference.
c. The primary point of wire rope attachment shall be centered over the man
riding device to reduce tilting and swinging the suspended person.
8. When personnel are suspended, a signal person must be provided unless operator
has line of sight. Signals must be visible to the operator at all times.
9. Rider suspension devices shall be in accordance with all applicable codes and
regulations, such as ISO-EN 361 (harness, wire, pulleys..).
10. Bridles and associated hardware for the man riding device shall not be used for
any other service.
11. If a slack wire rope condition occurs the hoisting mechanisms shall be inspected
to assure wire rope is properly spooled onto drum and through sheaves. When
slack wire has been detected, operator must determine and rectify problem prior
to resuming operation.
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Training
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Program
The employer shall provide and implement a training program for all supervisors and
employees engaged in the operation of raising, lowering or suspending personnel
using proper suspension devises from a winch load line so that they are familiar with
the requirements of the hoisting system and are able to recognize the associated
hazards and take appropriate measures. Records of training programs shall be
maintained.
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Planning Meeting
A meeting attended by the winch operator, signal persons, persons to be lifted and
the person in charge of the task to be performed is required to be held to plan and
review the procedures to be followed, including procedures for entering and leaving
the man riding device, the use of safety equipment, signals, and the lift chart
information.
NOTICE
• This meeting shall be held prior to the beginning of personnel hoisting
operations at each new work location and thereafter for any new employees
assigned to the operation.
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Winch Controls
A spring loaded, motor-mounted, manual throttle control valve is supplied as a
standard feature on these winches. The throttle control provides operator control of
motor speed and direction of drum rotation.
Operate winch throttle control using smooth, even movements. Do not slam or jerk
throttle controls during operation.
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Winch Mounted Air Throttle
Refer to Dwg. MHP2976 on page 12,
A.
Lift Slider Handle UP to Unlock;
B.
Haul-In;
C.
Payout.
The winch control throttle valve is spring loaded, full flow air and mounts to the
motor rotary housing.
6
Form MHD56314 Edition 4
