13
* To ensure accurate winch control when remotely operating the
winch at distances greater than 60 feet (18 metres) contact
Ingersoll-Rand Technical Sales for control suitability.
Pendant Operation
(Dwg. MHP1311)
Emergency Stop
Optional feature. Refer to Dwgs. MHP0671 and MHP0754.
The emergency stop device is located at the air inlet of the winch
on local control models, and on the pendant on remote control
models. When activated, winch drum rotation will immediately
cease.
1.
To start winch operation depress the ‘ON’ button.
2.
To operate winch, depress the appropriate ‘Haul-in’ or
‘Payout’ lever.
3.
In the event of an emergency all winch operation can be
stopped by pushing the emergency stop button. This will
prevent air from reaching the winch motor, engage the
winch automatic brake(s) and stop winch haul-in or payout
movement.
4.
If depressed, the ‘OFF’ button will also stop winch
operation.
5.
To reset the Emergency Stop Valve:
a.
Locate the serrated ring directly below the emergency
stop button. Rotating the serrated ring clockwise, will
cause the emergency stop button to ‘pop up’.
b.
Depress the emergency stop valve ‘ON’ button.
Winch Overload Device
Optional feature. The overload device is integrated into the
winch air motor control air system and prevents the winch from
lifting a load greater than the overload value provided in the
“INSPECTION” section. If an overload is detected, inlet supply
air is stopped and the winch will not operate.
If the overload device is activated the load must be lowered and
reduced. Alternative methods should be used to accomplish the
task. To lower the load reset the winch:
1.
Locate the serrated ring directly below the emergency stop
button. Rotating the serrated ring clockwise, causes the
emergency stop button to ‘pop up’.
2.
Depress the emergency stop valve ‘ON’ button.
3.
Operate the winch control in the payout direction.
Local Control Emergency Stop Valve Operation
(Dwg. MHP0754)
Remote Pendant Emergency Stop Valve Operation
(Dwg. MHP0671)
Winch Brakes
Automatic Disc Brake
The automatic disc brake is a spring applied, air released brake.
When the winch is operated in the payout direction air pressure
acting on the diaphragm overcomes spring pressure and releases
the brake. The brake automatically engages when winch
operation is returned from the payout direction to neutral or
when shifted to the haul-in direction. When the winch is in the
neutral or haul-in positions the brake air is vented and the brake
springs apply the brake. The springs, acting on the pressure
plate, compress the brake friction and separator plates and
engage the brake to prevent drum rotation in the payout
direction.
The cam type sprag clutch assembly allows drum rotation in the
haul-in direction with the brake plates engaged, but prevents the
drum from rotating in the payout direction.
Disc brake adjustment is not required. If the disc brake does not
operate properly it must be disassembled, inspected and
repaired.
WARNING
• If the brake is disassembled, the friction and separator
plates must be correctly installed as shown in the
“MAINTENANCE” section of this manual. Failure to
correctly install the friction and separator plates can cause
injury and/or property damage.
Summary of Contents for FA2A
Page 8: ...7 ...
Page 38: ...37 WINCH CROSS SECTION DRAWING ...
Page 39: ...38 WINCH ASSEMBLY PARTS DRAWING ...
Page 41: ...40 MOTOR ASSEMBLY PARTS DRAWING ...
Page 47: ...46 CONTROL VALVE ASSEMBLY PARTS DRAWING ...
Page 49: ...48 REMOTE PENDANT AND CONTROL VALVE ASSEMBLY PARTS DRAWING ...
Page 53: ...52 EMERGENCY STOP AND OVERLOAD ASSEMBLY PARTS DRAWING ...
Page 55: ...54 REMOTE EMERGENCY STOP AND OVERLOAD ASSEMBLY PARTS DRAWING ...
