Taylor-Dunn SC-100-24 Operation, T Roubleshooting And Replacement Parts Manual page 89

10. Mark the position of each carrier bearing ring nut in relation to the drive
housing and cover and then remove the differential assembly, do not allow
the ring nuts to rotate.
11. Install the pinion gear. Re-shim if required.
12. Install the pinion gear holding tool (96-500-42) and tighten the pinion
nut enough to keep the pinion gear from rotating.
13. Install the differential assembly.
14. Install the cover and all of the cover bolts. Torque to 45-50 ft-lbs.
15. Check the gear lash between the ring and pinion gears. The gear
lash should be .005 to .007 inches.
16. Adjust the gear lash if needed by tightening or loosening the carrier
bearing race ring nuts. The two ring nuts must be turned equally
in opposite directions.
Note: To m o v e t h e r i n g g e a r c l o s e r t o t h e p i n i o n :
Loosen the housing carrier bearing race ring nuts and tighten
the cover carrier bearing race ring nut equally.
Note: To move the ring gear away from the pinion:
Loosen the cover carrier bearing race ring nut and tighten the housing carrier race ring nut
equally.
Maintenance, Service, and Repair
If the ring and pinion gears or
bearings are replaced then the pinion
gear must be re-shimmed. Improper
pinion gear shims will result in drive
noise and premature failure. Refer to
Pinion Gear Shimming Instructions.
The two ring nuts must be turned the same amount in opposite
directions. This allows the carrier assembly to be positioned with the
proper gear lash without upsetting the bearing preload. If the ring
nuts are not turned the same amount, then the bearing preload will no
longer be correct and will result in drive noise and premature failure.
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