94 - 6
Section F
9803/3280
Section F
94 - 6
Issue 1
Rear Axle - SD80, PD70
19
If rolling torque measured at step 18 is too high, fit the
next larger size spacer. If rolling torque is too low, fit the
next smallest size spacer. If a correct spacer is not
available from the range, check that drive head is
assembled correctly.
20
Remove adapter
C
and sleeve
B
. Fit a new oil seal,
grease between seal lips before fitting. Fit the brake
calliper bracket
D
. Apply JCB Threadlocker and Sealer
to the fixing bolts
E
. Fit the brake disc/coupling and a
NEW stake nut
16
.
21
Progressively torque tighten the stake nut, occasionally
rotating coupling yoke, up to 250 Nm. Providing the
correct size spacer has been selected the rolling torque
should be between 2.3 and 3.4 Nm including seal drag.
Note:
The nut tightening torque can be increased to a
maximum of 300 Nm provided that the pinion rolling torque
does not exceed the maximum of 3.4 Nm.
22
Finally stake the nut
16
into the slot.
23
If both brake piston housings were removed, fit the one
at the opposite end to the crownwheel, using the
procedure in Step 24. Then install the crownwheel
/differential assembly into the drive head.
24
Apply JCB Multi-Gasket to the drive head mating face,
then fit the brake piston housing. Ensure that the match
- marks mad e d uring d ismant ling are aligned . Fit
capscrews. Torque - tighten to 56 Nm (42 lbf ft, 5.7 kgf
m). (Applies to both piston housings.)
25
Adjust differential side nuts to give a bearing preload of
1.13-2.26 Nm (0.8-1.6 lbf ft; 0.1-0.2 kgf m). (Measure
the preload by taking another rolling torque reading and
subtracting the torque figure measured at step 21. The
difference is the bearing preload.)
S256070
S256140
$
&
*
A401240
C
B
^
E
D
20
