9
GENERAL ASSEMBLY
F. GEAR END ASSEMBLY
1. Bolt gear-housing (10) loosely into both frames
(73, 74).
2. When reassembling use a lot of grease or oil
on the areas such as the thrust washer, o-ring
and seals. First slide thrust washer (38) onto
shaft. Next install the output gear set (24) into
the gear housing (10). Rotate the thrust
washer ((24-5) or (24-7)) in position to allow
installation of the snap ring ((24-8) or 24-9))
into the shaft groove. Push the gear set and
shaft back into the housing until it stops
against the thrust washer (38). Then install
snap ring onto output shaft (20).
(Note: Line
up all three planet gears in the output gear set
with the gear housing as it starts into the
housing).
3. Install the output sun gear (8, 111), the thrust
washer (37), then the secondary gear set (23).
4. Line up the teeth that are on the inside of the
primary gear housing (9) with all three of the
gears on the secondary gear set. Push the
primary gear housing (9) into place making
sure not to cut the o-ring (36). Install the eight
capscrews (35) and torque them to
specification.
5. Install the secondary sun gear (7). Making
sure it is against the washer in the secondary
gear set.
6. Attach the inner thrust washer (34) to the input
gear set (22A). Insert input gear set (22A)
making sure it is against the thrust washer
(34). Put the outer thrust washer (34) in place
and slip the input shaft (21) all the way though
the output shaft (20). Let the input shaft stick
out on the gear end so that all of the spline is
showing. Make sure the correct end is
towards the gear end. It will not work if it is
backwards.
7. Slip the input sun gear (6A) and race (127)
onto the end of the input shaft (21). Push
back on the input shaft and sun gear at the
same time until the sun gear fits into the inside
diameter of the three planet gears on the input
gear set. Put the cover (3A) on and secure
the eight capscrews (30) making sure the o-
rings (33) is not cut.
8. If you have the blocked piston version, after
rebuild, install it just as you would the other
cover except when you slip the outer input sun
gear on the shaft it is locked into the cover
assembly. When installing the blocked piston
cover assembly rotate it back and forth until
the sun gear lines up with the planet gears in
the input gear set and then secure the eight
capscews (30) to the proper torque. On the
motor end, lightly tap on the input shaft until it
seats into the bearing (27) in the cover. Note:
In both cover versions assistance may be
needed in holding the input shaft while the
cover is installed.
G. DRUM SECTION ASSEMBLY
1. After inspecting and replacing the necessary
parts, you can reinstall the drum (11). This
part is very heavy and you will need the
assistance of a hoist. With the weight of the
drum supported, install the brake band
assembly (77) and reattach the capscrews
(91), nut and washers (85 & 86). The brake
band air cylinder (76) can be reattached later if
not all together.
2. Install the inner thrust collar (46) making sure
the half moon slots are lined up with the key
slots in the output shaft (20). Tap the three
keys (47) into their slots in the output shaft and
slide the coupler (12) into place.
3. Install the sliding clutch (13), clutch plate (15),
and thrust ring (128) by installing six
capscrews (129). Then install the outer thrust
collar (131). Again, align the half moon slots
with the keys. Holding tightly against keys,
lock down the set screws (130).
4. Slide the brake housing (16) into place. The
air line from the brake band air cylinder can be
attached at this time.
5. Install the four capscrews (70), nuts and
washers (71, 72) into the frames (73, 74).
6. Slide the clutch (13) out of gear so you can
turn the drum freely and tighten all bolts
through the frames to the proper torque
specification.
7. Turn the drum to make sure it is not binding.
8. Install the sliding clutch air cylinders (17 and
125) and air cylinder covers (96 & 97) to the
brake housing with the four capscrews (51) on
each side.
9. Readjust the adjusting nuts (99) on the clutch
plate (15). Hook air to the cylinders and apply
air both directions. With the clutch fully
engaged (air applied) there should be slight
movement on the clutch plate in both
directions. When adjusted properly tighten the
jam nut on the end of the air cylinder to lock in
place.
