Provides for remote mounting of winch control at a fixed location at up to 20 feet (6
metres) away from winch motor. Air hoses connect throttle to winch motor to provide
winch operation.
Move control throttle handle to the right (clockwise) to payout wire rope and to the
left (counterclockwise) to haul-in wire rope. Avoid sudden movements of control valve
to ensure smooth operation of winch.
n Remote Pilot Pendant Throttle (optional feature)
Refer to Dwg. MHP2398 on page 12, A. Red - Air Supply; B. Green; C. Yellow; D.
Payout load; E. Haul-In Load.
Provides for remote winch control at distances of up to 66* feet (20 metres) away
from winch. The pilot pendant control throttle is a two function movable control
station for winch operation. Pilot pressure from pendant control activates winch
control valve. The winch control valve, located on winch motor, controls motor speed
and direction of drum rotation. Direction of drum rotation is determined by the
pendant lever/button depressed.
n Remote Pilot Lever Throttle (optional feature)
Provides for remote winch control at distances of up to 66* feet (20 metres) away
from winch. The lever pilot control throttle is a fixed mounted lever control station
for winch operation. Pilot pressure from lever pilot control throttle activates winch
control valve. The winch control valve, located on winch motor, controls motor speed
and direction of drum rotation. Direction of drum rotation is determined by the
direction in which lever is shifted.
* For distances greater than 50 feet (15 metres) contact Ingersoll Rand Technical
Sales for control suitability.
n
Underwound Operation (optional feature)
Underwound operation allows wire rope haul-in or payout off the bottom of drum.
This is a special operation and requires a winch specifically designed for this usage.
n
Emergency Stop and Overload System
Emergency Stop and Overload System are standard on -CE winches.
Refer to Dwg. MHP2619 on page 11, A. Emergency Stop Button; B. Push Down to
Stop Winch Movement; C. Overload Valve Reset Button; D. Twist Red Button to Reset;
E. Overload Valve Adjustment Screw.
When emergency stop or overload valve is activated, winch drum rotation will
immediately cease.
CAUTION
• If winch continues to move (payout load) after emergency stop activates,
brake(s) are not holding load and may require adjustment or repair.
When control valve senses a preset pressure difference between ports, a pilot signal
is sent to stop flow of air, winch drum rotation will immediately cease.
n Emergency Stop
Emergency stop device is located on the control valve. When activated, winch drum
rotation will immediately cease. To activate emergency stop, depress (push down)
red palm valve, located on top of control valve.
NOTICE
• If winch overload occurs, overload device, if equipped, also stops winch. To
operate winch after an overload, reduce load and reset overload.
Emergency Stop Reset:
1. Rotate red stop button, in (counterclockwise) direction until red stop button
‘pops’ up.
2. Winch is ready to resume operation.
Pendant Control:
Refer to “Emergency Stop” section and Dwg. MHP1892 on page 12, A. Pendant
Handle; B. “Emergency Stop” Button; C. “ON” Button; D. Winch Control Levers.
n Overload System (CE Models only)
The winch utilizes a direct acting load limiter to limit the maximum line pull to 160%
of the rated line pull. The limiter is a pressure regulator that limits the supply air to
a pressure that will not allow the winch to pull beyond 160% of the rated line pull.
Checking Overload Valve Setting:
Proper test and adjustment of overload should only be performed by an
Ingersoll Rand trained technician. The winch shall not be able to lift a load greater
than 160% of the rated utility load. If this is possible, adjustment is required.
1. Attach load line to a load that is calibrated to maximum rated load for winch.
2. Move control lever to haul-in position. If winch does not lift load, adjust the
adjustment screw. Refer to ‘Overload Valve Adjustment’ in the Product
Maintenance Information Manual.
Setting the Overload:
Attach load line to a load that is calibrated to 160% of winch rated capacity. Shift
control lever to haul-in position.
1. If overload valve activates, reset overload valve. Winch is ready for normal
operation.
2. If winch lifts higher than 160% of rated load, lower load. Turn jam nut
(counterclockwise) in 1/4 turn increments until overload valve activates when
control lever is shifted to haul-in position. After each 1/4 turn, retest winch.
n
Tensioning System (optional feature)
Refer to Dwg. MHP1865 on page 12, A. Pressure Gauge; B. Regulator; C. Auxiliary
Valve (shown in Normal Position); D. Control Valve.
With auxiliary valve in the NORMAL position, winch provides normal operation.
Placing valve selector in TENSIONING position allows winch to automatically operate
to haul-in slack wire rope to maintain tension.
Auxiliary valve provides preset air pressure to air motor and disc brake. This allows
brake to be released and winch to overhaul during TENSIONING operations. In this
position, winch will maintain constant tension on wire rope.
Auxiliary valve is pre-set at zero from the factory. Specific adjustments must be made
in the field. Adjustments can be modified at any time to accommodate the load
conditions. Refer to ‘Regulator Adjustment’ in the Product Maintenance Information
Manual.
n Tensioning System (operation)
1. Place auxiliary valve in NORMAL position.
2. Operate winch normally to position end of load line.
3. Connect load line to load.
WARNING
• Ensure slack load line is taken up by operating winch control valve with
selector in NORMAL position. If selector lever is placed in TENSION position
the winch will immediately attempt to establish line tension causing line to
‘snap’ resulting in injury or damage to property.
4. Operate winch normally to remove slack from load line.
5. Actuate valve to TENSION position to set winch to automatically haul-in load line
and maintain line tension.
n
Winch Brakes
n Manual Drum Band Brake (optional feature)
Manual band brake may be applied by turning brake handwheel (104) to the right
(clockwise) and released by turning handwheel to the left (counterclockwise). Brake
must be kept properly adjusted to hold the required load. Refer to 'Adjustments' in
‟MAINTENANCE” section in Product Maintenance Information Manual for instructions.
n Automatic Drum Band Brake (standard)
The automatic drum band brake is a spring applied, air released brake which utilizes
an air actuated, spring loaded cylinder, that automatically disengages brake when
motor is operated. Air pressure in cylinder overcomes spring pressure to release brake.
When control valve is placed in neutral position, air in cylinder is vented and spring
automatically engages brake to prevent band rotation.
The cylinder clevis must be kept properly adjusted to hold required load.
NOTICE
• Extended exposure to corrosive atmospheres can cause the band brake lining
to adhere to the drum. It is recommended when winch is not in operation
and in a no load condition that the band brake be left in a released position.
n Automatic Disc Brake
The automatic disc brake is a spring applied, air released brake. Using an air actuated,
spring loaded piston, the brake automatically disengages when motor is operated and
engages when throttle is returned to neutral position.
Air pressure ported through brake housing overcomes spring pressure and moves
piston which releases brake. When control valve is placed in neutral position, air is
vented, spring pressure overcomes air pressure and spring pressure moves piston,
engages brake and prevents drum rotation.
n
Drum Locking Pin (optional feature)
Refer to Dwg. MHP2772 on page 12, A. Drum Lock Assembly; B. Engaged; C.
Disengaged.
The drum locking pin assembly is mounted on the outboard upright, opposite motor.
Handle movement must be parallel to the winch base. It should be engaged if a load
is left suspended. The word ‘TOP’ is stamped into the handle for correct orientation
and must be visible from above.
To engage Drum Locking Pin:
When facing the handle, pull handle away from the outboard upright and pivot it to
the left. Handle pivot capscrew will be in closest position to drum flange. Operate
winch very slowly until locking pin engages one of the drum flange holes.
WARNING
• Ensure that all braking mechanisms are engaged and all personnel are clear
of winch load and rigging before disengaging locking pin.
• Extremely difficult locking pin release is an indication that load is held by
locking pin and braking mechanisms are not functioning properly. Do not
release locking pin until load control is established.
Form MHD56439 Edition 2
7