14
Manual Drum Brake
Optional feature. Refer to Dwg. MHP1375.
The manual drum brake may be applied by pushing down on the
handle (135) and released by pulling up. By pushing the handle
down fully it will go over-center and lock in that position,
preventing drum rotation. The drum brake must be kept properly
adjusted to hold the required load. Refer to ‘Adjustments’ in the
“MAINTENANCE” section. If brake band cannot be adjusted to
hold the rated load, the brake must be disassembled, inspected
and repaired.
Drum Brake Handle Operation
(Dwg. MHP1375)
Automatic Drum Brake
Optional feature. The automatic drum brake is a spring applied,
air released, externally mounted brake which uses an air
actuated, spring loaded cylinder to automatically disengage the
brake when the motor is operated in either the haul-in or payout
directions. Air pressure directed to the cylinder overcomes
spring pressure to release the brake and allow the drum to rotate.
When the control valve is placed in the neutral position, the air
in the cylinder is vented which allows the cylinder spring to
automatically engage the brake and prevent drum rotation.
Adjustments to the cylinder clevis can be made to compensate
for normal brake lining wear. The drum brake must be kept
properly adjusted to hold the required load. Refer to
‘Adjustments’ in the “MAINTENANCE” section. If brake band
cannot be adjusted to hold rated load, the brake must be
disassembled, inspected and repaired.
Free Spool
Optional feature. Refer to Dwg. MHP1322.
The Free Spool option allows wire rope to be spooled from the
drum without operating the winch motor.
During normal winch operations the free spool is in the non-free
spool position. The output shaft connects the outboard upright to
the drum. The free spool handle is in the DOWN position.
WARNING
• To avoid damage to the structure and winch the winch
drum must be stationary and there must be no load on the
wire rope during Free Spool operation.
Free Spool Position:
1.
Engage the drum band brake to lock drum in position.
2.
Pull handle (509) out.
3.
Rotate the handle (509) counterclockwise, 180º to the ‘up’
position.
4.
Release handle. Ensure handle is engaged in slots in detent
plate (510).
The drum is now in free spool. During free spool operations use
the drum band brake to control drum speed during wire rope
payout.
Non Free Spool Position:
Before operating the winch with the motor, ensure winch is not
in free spool mode.
1.
Engage the drum band brake.
2.
Pull handle (509) out.
3.
Rotate handle clockwise, 180º to the ‘down’ position. This
connects the winch drum to the outboard upright. If
required, the band brake can be carefully released to allow
drum to rotate to assist in lining up outboard gear (28)
splines with drum and upright.
4.
Release handle. Ensure handle is engaged in slot in detent
plate (510).
Free Spool Operation Drawing
NOTICE
• Drawing view reversed. Handle is located on the opposite
(right hand as viewed side of housing.
(Dwg. MHP1322)
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 ...
