SM11-010-1
Page 9
10. Lift the housing free of the cylinder and piston
NOTE
assembly.
For older Model 15 Hoist skip to step 6.
11. Remove the nine springs from the cylinder.
5.
Remove the bearing with the seal from inside
the left side of the hoist drum.
12. Using a soft faced hammer, remove the brake
piston from the cylinder.
6.
Remove the shaft, coupling, and internal snap
ring.
13. Remove the O-ring from thecylinder.
7.
Remove the snap ring, clutch, and key from the
14. Remove the O-rings from the piston.
main shaft (right side).
Hydraulic Motor.
8.
Remove the spacer from the main shaft.
1.
Drain the oil from the drum by removing the
9.
Remove the capscrews securing the hub to the
plugs.
right end cover.
2.
Tag and disconnect the hydraulic lines from the
10. Remove the bolts and washers securing the
motor and the hoist motor control valve. Cap or plug
right end cover to the center housing; remove the
all lines and openings.
right end cover.
3. Remove the hex head bolts and washers secur-
11. Remove the O-ring from the right end cover.
ing the motor to the left end cover; remove the mo-
tor; discard the motor gasket. For maintenance of
12. Remove the capscrews securing the gear reduc-
the vane type motor, refer to the VANE MOTOR SM
tion unit, drum end, O-ring, and spacer to the drum;
package.
remove these parts as an assembly from the drum.
Hoist.
Gear Reduction Unit.
1. Remove the bolts and washers securing the left
1.
Remove the capscrews securing the cover and
side cover to the center housing; remove the end
thrust washer to the unit end cover; remove the cov-
cover.
er and the thrust washer.
NOTE
2.
Remove the bolts and washers securing the unit
end cover to the ring gear; remove the unit end cov-
In the older Model 15 Hoist, there is a
er.
drum support bearing cage which
houses the roller bearing and seal. In
3.
Remove the spacer.
the newer Model 15 Hoist, the drum
support bearing cage is not used. For
4.
Remove the sun gear.
the older Model 15 Hoist continue with
step 2. For the newer Model 15 Hoist
5.
Remove the primary reduction assembly.
skip to step 5 and continue.
6.
Remove the ring gear.
2. Remove the bolts and washers securing the
drum support bearing cage to the drum; remove the
7.
Remove the snap ring securing the bearing to
drum support bearing cage.
the hub; remove the bearing and main shaft.
3.
Remove the bearing with the seal from the
8.
Remove the shaft seals.
drum support bearing cage.
9.
Remove the snap ring, which retains the hub,
4.
Remove the O-ring from the drum support
from inside of the secondary reduction assembly.
bearing cage.
10. Remove the secondary reduction assembly.
11. Remove the hub from the right drum end.
