Triumph TR6 PI Operation Manual page 308

REAR AXLE
FINAL DRIVE UNIT
- Overhaul
51.25.19
Service Tools: S4221 A-IO-I6-, RG42 I , S123A, M84B-I, S316
NOTE: If slight damage to the crown wheel or the pinion
necessitates replacement, discard both items and fit
a new matched pair. These gears are lapped together
during manufacture and etched with similar marking
to identify them as a pair, therefore, before fitting,
ensure that each gear is similarly marked as shown
in NT 2784.
Dismantling
I. Withdraw crown wheel and differential unit from
hypoid casing 51.15.0 I.
2. Remove the ten bolts and washers securing the crown
wheel to the differential flange, withdraw the crown
wheel.
3. With the crown wheel removed, install the differential
unit in the hypoid casing and release all tension from
the spreading tool.
4. Using a dial gauge check the crown wheel flange
run-out, tltis should not exceed 0·003 in (0·08 mm).
Excessive run out indicates a distorted crown wheel
flange, differential or defective bearings.
5. Remove the differential unit from the hypoid casing.
6. Using the tools S422IA-IO, WIthdraw the differential
carrier bearings.
Continued
o
NT2798
51.25.19 Sheet I
Triumph TR6 Manual. Part No; 545277 Issue I