Remove o-ring (item #37), bushing (item #14) from outside of
motor end bearing (item #3), remove o-ring (item #32), bearing
(item #13) from inside of motor end bearing (item #3). Place
new, well oiled, o-ring (item #32) into groove inside of end
bearing and press new bearing (item #13) into end bearing.
Press bushing (item #14) onto end bearing and dip o-ring (item
#37) in oil and seat into groove of end bearing.
Remove seal (item #40) from gear housing end bearing (item
#6). Loosen nut (item #22) and remove nylon setscrew (item
#19) and remove ring gear (item #5) from gear housing end
bearing, if necessary. Remove bushing (item #14) and bearing
(item #12) from gear housing end bearing (item #6). Press
new bushing (item #14) and bearing (item #12) into place in
end bearing. Install ring gear and nylon setscrew and nut. Ring
gear must be fully seated in gear housing end bearing (item #6)
and slot in ring gear must NOT be aligned with clutch shifter
hole. Install new seal in gear housing end bearing, with sharp
edge of seal outward.
Generously apply grease (MOBILITH SHC 007) to teeth of ring gear (item #5), teeth of planet gears in drum (item #1) and to bushing in
gear housing end bearing (item #6). Apply a small amount of grease to base of bushing on motor end bearing (item #4). Apply grease to
teeth of gear and short end of shaft (item #10). Place gear end of shaft through thrust washer (item #49) and into bearing in end bearing
(item #6). Place drum over shaft and rotate drum to engage planet gears with output gear on shaft and with ring gear in end bearing.
Assemble end bearing (item #3) to drum assembly and use tie plates (item #11) and capscrews (item #18) to hold both end bearings
together. Tighten capscrews to 55 Ft. Lbs. (75 Nm.). Slide thrust washer (item #48) over end of shaft and against end bearing (item #3).
Place snap ring (item #41) into groove in splined end of shaft.
If necessary, remove and replace appropriate shifter assembly (item #2 or #3), as follows:
MANUAL CLUTCH SHIFTER ASSEMBLY
Remove by loosening setscrew (item #21), jam nut and unscrewing clutch shifter. Be sure slot in ring gear is not aligned with clutch shifter
hole. Rotate drum, if necessary, to insure hole and slot are not aligned. Reinstall clutch shifter with plunger, jam nut and handle positioned
in cylinder housing, as shown. Thread assembly (with handle engaged in cylinder slot) into the end bearing. Pull drum toward the brake
housing end bearing to remove play. Hold drum in the position and continue threading the shifter assembly in until the gap between the end
of the handle and cylinder is 7/16 +0 -1/16 inch and handle is in the horizontal position, as shown below. NOTE: This gap will vary with
drum endplay. With the drum pulled against the gear housing, the gap should be 3/8 inch. Lightly tighten jam nut. Rotate drum until handle
snaps fully into the engaged position. Pull handle out and rotate 90
clutch shifter at DISENGAGED position. Securely tighten jam nut while holding the handle. Tighten setscrew securely. Re-check clutch
operation as described on page 5.
AIR CYLINDER SHIFTER ASSEMBLY
Remove by loosening setscrew (item #21),
jam nut and unscrewing clutch shifter. To
reinstall, thread air cylinder into housing.
Install one or two shims (item #44) under
cylinder head, if needed, to orient air cylin-
der port for pneumatic connections.
Tighten setscrew. Refer to page 5 and
check for proper operation of the clutch.
o
. Verify that drum can be rotated freely (at least one full revolution) with
11
3
47
41
11
18
9
18
PLANET
GEARS
1
50
8
19
22
PLUNGER
44
3
HANDLE (HORIZONTAL)
+0
7/16
-1/16
CYLINDER
MANUAL CLUTCH ADJUSTMENT
21
6
2
MANUAL CLUTCH
SHIFTER
JAM NUT
AIR-CYLINDER
CLUTCH SHIFTER