1. Remove the four capscrews securing the brake valve
to the motor. Remove the four capscrews securing
the manifold block to the motor. Disconnect the motor
case drain hose at the motor.
NOTE
:
Some installa-
tions have the brake release hose connected directly
to the motor, instead of to the manifold block. In this
case, disconnect the brake release hose at the motor
port. Stand winch up on drum support with the motor
end up and secure in this position.
2. Before removing the motor, it is a good idea to note or
mark the position of the motor in relation to the winch,
since it will be rotated 180° when reinstalled. Remove
the capscrews securing the motor to the winch and
carefully remove the motor.
3. Remove the brake clutch assembly from the motor
support.
4. Remove the snap ring and sprag bushing retainer
from one end only of the brake clutch assembly.
5. Pull the inner race out. Examine the race for scoring,
wear or indentations caused by the sprag cams. If the
inner race is not completely smooth, the assembly
should be replaced.
30
REVERSING DIRECTION OF DRUM ROTATION
Motor
Case Drain
Brake Release
Circuit
Brake Release
Circuit
Hoisting
Port
Motor
Case Drain
Motor
Brake
Valve
M
Lowering
Port
DRN
DRN
BR
BR
Hoisting
Port
Lowering
Port
Motor
Brake
Valve
M
M = Manifold Block
“A”
“B”
NOTE:
Only BG6A and BG6B hoists equipped with gear motors and Braden cast brake valves are capable of being
configured for opposite, or underwound drum rotation.
In order to change the direction of rotation, 2 things must be changed on the winch. First, the motor must be made to
rotate in the opposite direction. This is done by exchanging positions of the brake valve and manifold block on the
motor. Secondly, the brake clutch assembly must be made effective for the opposite direction of rotation. This is done
by reversing the inner race of the brake clutch assembly.
Figures “A” and “B” above show typical BG6 gear motor installations. Note that the only difference between the two
drawings is the motor is rotated 180° (the “belly” of the motor moves to the opposite side). If the motor shaft rotates
clockwise in figure ‘A” when the hoisting port is pressurized, it will rotate counterclockwise in figure “B”.
Summary of Contents for BRADEN Gearmatic BG6A
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