94 - 4
Drive Head-Assembly (cont'd)
Note:
The crown wheel and pinion are matched and should
be renewed as a pair if either one is damaged or excessively
worn. The two differential housing halves are also matched.
Do no t use unm at c hed halves. If req uired , f it a new
crownwheel to the differential case half, torque tighten
crownwheel retaining bolts to 166 Nm 122 lbf ft; 17 kgf m).
7
Assemble the differential gears and their spherical
washers into the bottom half housing. Fit the differential
bearing cones.
8
Position the top half housing onto the differential,
aligning the match mark letters (see Note above). Apply
JCB Threadlocker & Sealer to the threads of bolts, then
fit and torque - tighten to 56 Nm (42 lbf ft, 6 kgf m).
Check the gears for free rotation.
9
Fit t he p inion inner b earing c one and t he largest
available spacer (e.g. 14.20 mm)
Note
: It should be noted that the axle should be assembled
using a solid spacer. However, in the absence of the special
tools required or the correct size solid spacer it is acceptable
to fit a collapsible spacer, refer to
Axles
,
Collapsible Spacer
Assembly
.
10
Fit the pinion inner bearing cup, together with the
required thickness of shims to give correct pinion
depth, see Pinion Depth, steps 1 to 6. To ensure the
cup is fitted square, use a suitable puller assembly. Do
not use a hammer. Fit the outer bearing cup.
11
Insert the pinion into its bore. (Before inserting, ensure
that the pinion matches the crownwheel. The code
num b ers et c hed on t he p inion end fac e and t he
crownwheel perimeter should be the same.
12
Fit the pinion outer bearing cone. Do not fit the oil seal
at this stage.
Section F
9803/3280
Section F
94 - 4
Issue 1
Rear Axle - SD80, PD70
S256120
S256080
S256090
S256100
7
8
8
9
9
0
0
0
!
7
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