Heat the external bearing (9) to a temperature of about 100 ëC and
fit it on to the pinion (2) so as to complete the pack as shown in the
figure.
NOTE.
Lightly lubricate bearing (10) with SAE85W90 oil.
Fit flange (4) and nut (1).
ATTENTION!
Do not mount the seal ring (5) and O-ring (3) at this
stage.
NOTE.
If necessary, use a plastic hammer to key the flange.
From the main body (6), remove the small reaction blocks
T16
for
pinion extraction and install reaction bar "
A
".
Engage tool
T15
on the flange and tighten nut (1) to the minimum
permitted torque.
Permitted torque: 600±800 Nm.
GB
GB
GB
GB
GB
GB
a
b
c
d
f
e
104
INSTALLING AND ADJUSTING THE CROWN WHEEL AND PINION - INSTALLAZIONE E REGISTRAZIONE PIGNONE CONICO - INSTALLATION
UND EINSTELLUNG DES KEGELRADS - INSTALACION Y REGISTRACION PINON CONICO - INSTALLATION ET REGLAGE PIGNON CONIQUE
F1241810
TM
F1241809
T15
A
F1241807
2
9
F1241808
1
4
Apply a torque meter "
TM
" onto pinion nut (1) and check pinion
torque.
Torque: 120±150 Ncm
ATTENTION!
If torque exceeds max. value, increase thickness "
S1
"
(7) between bearing (10) and distance piece (8).
If torque does not reach the set value, increase the tightening torque
of nut (1). Do this in several stages until the maximum permitted value
of 800 Nm is reached.
ATTENTION!
If torque does not reach minimum value, reduce
thickness "
S1
" (7).
ATTENTION!
In order to be able to calculate increase or reduction in
thickness "
S1
" it should be taken into account that for every 0.01 mm.
variation in thickness (7), pinion (2) torque varies by 60 Ncm.
IMPORTANT!
Before completing the installation of the pinion and
relative seals, install the differential unit.
For details, see «ASSEMBLY AND INSTALLATION THE DIFFER-
ENTIAL UNIT».