35
ASSEMBLY
1. Place the motor adapter (item 10) on a clean work sur-
face with the motor mounting surface down. Apply a
light coat of oil to a new backup ring (item 12) and O-
Ring (item 11) and install them into the groove on the
motor adapter. Backup rings are always placed on the
low pressure side of the O-Ring. In this case, the back-
up ring is toward the motor mounting surface. Lightly
oil the new brake cylinder seal (item 7) and install it
onto the motor adapter with the seal lip down.
2. Lubricate the friction discs with the same oil used in the
winch. Install a steel brake disc (item 8) into the motor
adapter, followed by a friction disc (item 9). Continue to
alternately install steel and friction discs until there are
8 steel and 7 friction discs. A steel disc will be on top.
3. Install the brake plate spacer (item 5) on top of the last
steel disc.
4. Place the brake housing (item 1) on a clean work sur-
face with the motor end facing up. Install the spring
spacer (item 2), then the 12 springs (item 3).
5. Install the pressure plate (item 4) into the brake hous-
ing. Be careful that none of the springs fall over. Install
the steel backup ring (item 6).
NOTE: The close fi tting backup ring may be depressed
slightly to one side to lodge it in the brake cylinder bore
and temporarily hold the pressure plate and springs in
place while the brake cylinder is inverted and lowered
over the motor adapter. As an alternate, the motor adapt-
er and brake plates can be turned over and installed into
the brake cylinder, holding the brake plates and spacer in
place through the center opening. Be careful to not pinch
your fi ngers between the spacer plate and the pressure
plate.
6. Apply petroleum jelly or oil soluble grease to the seal-
ing surface of the brake housing and the piston seal.
Turn the brake housing over and lower it onto the motor
adapter, being careful not to damage the piston seal or
O-Ring on the adapter. The alternate assembly method
above can also be used.
7. Turn the entire assembly over and install the capscrews
(14) and lockwashers (13). After the capscrews make
contact with the motor adapter, evenly tighten them
one turn at a time until the motor adapter is drawn tight
against the brake cylinder, then torque to the recom-
mended value.
Seal
O-Ring
Backup Ring
Always use the molded spring spacer to properly posi-
tion the springs in the brake cylinder. Failure to install
the spring spacer may allow the springs to contact each
other and become damaged. This could result in loss of
load control, property damage, injury or death.
To Next Page
