Disassembly and Assembly of Drive Pinion Shaft
DISASSEMBLY OF DRIVE PINION SHAFT
1. MEASURE DRIVE PINION PRELOAD
Using a torque meter, measure the preload of the drive pinion. Preload:
Reused bearing 5 - 8 kg.cm (4.3 - 6.9 in.-lb, 0.5 - 0.8 N.m)
2. REMOVE DRIVE PINION CAP
3. REMOVE COUNTER DRIVEN GEAR
a. Using a chisel, loosen the staked part of the nut.
b. Install SST onto the gear.
SST 09350-32013 (09351 - 32031)
c. Using SST to hold the gear, remove the nut.
SST 09330 - 00021
d. Using SST, remove the gear and bearing.
SST 09350 - 32013 (09351 - 32061)
4. REMOVE OUTER RACE FROM CASE
Using SST, remove the outer race.
SST 09350 - 32013 (09308 - 10010)
5. REMOVE OIL SLINGER, SPACER AND ROTOR SENSOR OR GOVERNOR BODY DRIVE GEAR
6. REMOVE DRIVE PINION
a. Using SST, remove the snap ring.
SST 09350 - 32013 (09351 - 32050)
b. Insert a brass bar into case hole to tap out the drive pinion.
c. Tap the drive pinion and remove the bearing cage from the bore.
7. (A140 L)
REMOVE GOVERNOR BODY DRIVE GEAR
Using a press, press out the governor body drive gear.
8. REMOVE BEARING CAGE FROM DRIVE PINION
9. REMOVE O-RING FROM BEARING CAGE
ASSEMBLY OF DRIVE PINION SHAFT
1. INSTALL NEW O-RING ONTO BEARING CAGE
2. PLACE BEARING CAGE ONTO DRIVE PINION SHAFT
Be careful not to damage the oil seal with the splines.
3. (A140 L)
INSTALL GOVERNOR DRIVE GEAR
4. INSTALL DRIVE PINION SHAFT INTO CASE
Slightly tap the cage into the case until the groove with the bore can seen.
NOTE: Drive in the bearing cage until the surface of the bearing cage passes through the groove with the bore.
5. INSTALL SNAP RING INTO CASE
a. Using SST, install the snap ring into the groove.
SST 09350 - 32013 (09351 - 32050)
b. Slightly tap the bearing cage to fit the snap ring into the groove.
6. (A140 E)
INSTALL ROTOR SENSOR
Install the rotor sensor, facing the magnet outward.
7. INSTALL OIL SLINGER
Install the oil slinger, facing the lip outward.
8. INSTALL OUTER RACE
Using SST, drive the outer race into the case.
SST 09350 - 32013 (09351 - 32100, 09351 - 32140)
9. INSTALL NEW SPACER
Always use new spacer.
Install the spacer with the small end first.
10. INSTALL COUNTER DRIVEN GEAR ONTO SHAFT
a. Place a bar at the drive pinion side and position the other end of the bar against a vise or such.
b. Drive the gear onto the shaft until the nut can be installed on the threads of the shaft.
CAUTION: Be careful not to damage to the transmission case.
11. ADJUST DRIVE PINION PRELOAD
a. Coat the threads and surface of the nut with MP grease.
b. Using SST to hold the gear, tighten the nut.
Torque: 1,750 kg.cm (127 ft.lb, 172 N.m)
SST 09350 - 32013 (09351 - 32031) and 09330 - 0002
c. Turn the gear counterclockwise and clockwise several times.
d. Using a torque meter, measure the preload of the drive pinion.
Preload (at starting):
New bearing 10 - 16 kg.cm (8.7 - 13.9 in.lb, 1.0 - 1.6 N.m)
Reused bearing 5 - 8 kg.cm (4.3 - 6.9 in.-lb, 0.5 - 0.8 N.m)
- If preload is greater than specification, replace the bearing spacer.
- If preload is less than specification, retighten the nut 130 kg.cm (9 ft.lb, 13 N.m) at a time until the specified preload is reached.
If the maximum torque is exceeded while retightening the nut, replace the bearing spacer and repeat the preload procedure.
Do not back off the nut to reduce the preload.
Maximum torque: 2,950 kg.cm (213 ft.lb, 289 N.m)
e. If the preload is adjusted within specification, note the preload.