7.6MAIN DRIVE GEAR AND BEARING
REMOVAL
TOOL NAMEPART NUMBER
PILOTHD-35316-10
RECEIVER CUPHD-35316-11
CROSS PLATEHD-35316-3A
8 IN. BOLTHD-35316-4A
12 IN. BOLTHD-35316-5
WASHERHD-35316-7
BEARING DRIVERHD-35316-9
MAIN DRIVE GEAR/BEARING
REMOVER AND INSTALLER
HD-35316-C
NICE BEARINGRS-25100-200
NICE BEARINGRS-25100-200
Failure to use Main Drive Gear Remover and Installer can
cause premature failure of bearing and related parts.
(00540b)
NOTE
Main drive gear and bearing can be removed with the transmis-
sion case in the frame after removing door assembly. Use
MAIN DRIVE GEAR/BEARING REMOVER AND
INSTALLER (Part No. HD-35316-C).
1. Remove retaining ring.
NOTES
• The main drive gear bearing and retaining ring must be
replaced if the main drive gear is removed. The bearing
will be damaged during the removal procedure.
• The CROSS PLATE (Part No. HD-35316-3A) is stamped,
"UP 6 SPEED". Mount cross plate with this end pointing
up.
2. See Figure 7-33. Place CROSS PLATE (Part No. HD-
35316-3A) (1) on right side of transmission case as shown,
and secure with two screws (2). Position cross plate so
that large bolt hole in cross plate is lined up with center of
main drive gear (4).
3. Insert 12 IN. BOLT (Part No. HD-35316-5) (3) through
cross plate and main drive gear.
4. At left side of transmission case, place WASHER (Part
No. HD-35316-7), NICE BEARING (Part No. RS-25100-
200) (6), flat washer (7) and nut (8) over end of bolt.
Tighten nut until main drive gear is free.
NOTES
• When removing the main drive gear, the gear is pressed
out against the resistance of the bearing inner race.
Without any support at the inner race, the bearing is des-
troyed.Whenever the main drive gear is removed the main
drive gear bearing must also be replaced.
• See Figure 7-34. When the main drive gear is removed,
a portion of the bearing inner race remains attached to
the main drive gear. If the main drive gear is to be re-used,
this inner race must be removed first.
• If not already done, remove large main drive gear oil seal
and retaining ring.
5. See Figure 7-35. Slide PILOT (Part No. HD-35316-10) (3)
over small end of BEARING DRIVER (Part No. HD-35316-
9) (2).
6. Insert 8 IN. BOLT (Part No. HD-35316-4A) (1) through
bearing driver and pilot.
7. Insert bolt with bearing driver and pilot into right side of
transmission case, through main drive gear bearing (4).
Make sure bearing driver fits up against main drive gear
bearing and pilot is centered in bearing bore.
8. At left side of case, slide RECEIVER CUP (Part No. HD-
35316-11) (5) onto bolt and over main drive gear bearing.
Install NICE BEARING (Part No. RS-25100-200) (6), flat
washer (7) and nut (8) over end of bolt.
NOTE
Support bearing remover assembly as you remove bearing in
the following step. Entire assembly will fall out of transmission
case when bearing comes free.
9. Tighten nut until main drive gear bearing is free.
10. Discard main drive gear bearing.
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