SM09-004-0
Page 5
1. Press the oil seal into the end cover.
8. Set the cylinder housing on the brake housing im-
mediately to permit an even spread of RTV.
2.
Place the shaft in the brake housing.
9. Install the four bolts and washers. Alternately
3. Place the stators and brake discs over the splined
tighten the bolts, and torque them to 35 pounds-foot (4.8
shaft into the brake housing. Ensure the proper order is
kgm).
maintained (brake disc, stator, brake disc, stator).
SWING GEARBOX.
4. Lubricate and install new O-rings and backup rings
on the piston and the cylinder head.
Disassembly.
5. Install the cylinder head and the piston into the
NOTE
brake housing.
Any maintenance involving disassem-
6. Insert the compression springs into the counter-
bly of the swing gearbox should in-
bores on the piston.
clude the replacement of all seals and
O- ings.
r
7. Apply a thin, even film of RTV Sealant to the brake
housing according to the following procedure:
NOTE
For ease of alignment, scribe or mark a
line through the end cover, internal
WARNING
gear, and hub.
Minor concentrations of acetic acid vapor
1. Remove the plugs and drain the housing com-
pletely.
may be produced during application.
Adequate ventilation should be provided
NOTE
when silicone RTV is applied in confined
areas.
Steps 2 and 3 are only necessary if the
swing brake and motor have not been
Eye contact with these silicone RTV
removed.
materials may cause irritation. If eye
contact occurs, flush eyes with water
2. Position the swing box on a clean work surface,with
for 15 minutes and have the eyes
the swing motor up, and remove the capscrews and
examined by a doctor.
washers securing the motor to the gear housing cover.
Remove the motor.
3. Remove the hex head bolts and lockwashers from
a. Remove dirt, grease, or moisture from the mating
the brake assembly. Remove the brake assembly.
surfaces.
4. Remove the thrust races and thrust bearing from
b. Dry the surfaces.
the first stage planet carrier. Remove the spacer.
c. Apply a thin bead, maximum 0.125 inch (3.175
5. Remove the first stage planet carrier assembly.
mm) diameter, completely around one mating surface
and all fastener holes to ensure complete sealing and to
6. Remove the thrust races and thrust bearing from
prevent leakage.
the second stage planet carrier.
