3 Fit the Clutch/Shaft Assemblies
a Fit the bearing outer cups at their correct locations in the
rear case 3a and centre of the transfer gear 3b.
b Carefully fit the clutch/shaft assemblies in the following
order:
Note: When fitting the layshaft clutch take care not to
damage the rear bearing on the transfer gear teeth.
Note: Before fitting the input clutch shaft make sure that the
4 sealing rings (shown at A) are in good condition and
lubricated with oil.
3c - Mainshaft clutch
3d - Layshaft clutch
3e - Forward/Input clutch shaft
3f - Reverse clutch unit
3g - 6 speed clutch shaft (not fitted to 4x4 Gearbox)
c Make sure that the sealing rings on the ends of the
clutch shafts 3c, 3d, 3f and 3g are in good condition and
lubricated with oil.
4x4 Gearbox: clutch 3g (6 speed) not fitted.
4 Assemble the Front and Rear Casings
a Make sure that the 3 off ‘O’ rings 4a are correctly fitted
to the rear case.
b Apply a thin bead of JCB Multigasket to the rear casing
mating face as shown at B.
c Make sure that the shaft bearing outer cups are correctly
located in the front case 4b and then carefully lower the
case over the clutch shafts until it mates with the rear
case. Do not use excessive force when fitting the case.
d Fit the 17 casing bolts 4c and progressively torque
tighten to 56 Nm (41 lbf ft).
127 - 4
Section F Transmission
9803/3280
Section F
127 - 4
Issue 1
Powershift Gearbox
Assembly (cont’d)
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