7
Remove the Torque Converter Relief Valve
a
Undo the plug
7a
and remove the sealing washer
7b
,
spring
7c
and poppet
7d
. Note that some gearboxes
are fitted with a ball instead of a poppet.
8
Remove the Pressure Maintenance Valve
a
Undo the plug
8a
, remove spring
8b
and valve spool
8c
.
9
Separate the Front and Rear Casings
a
Remove the 4WD clutch oil pipe
9a
.
b
Undo the 17 casing bolts
9b
.
c
Using suitable lifting equipment carefully lift off the front
case
9c
. Be sure to retrieve all the shaft bearing outer
cups. The cups may be left on the bearings, or inside
the front case. Keep the cups with their associated
bearings.
d
Remove and discard the 3 sealing ‘O’ rings
9e
from the
front case.
Note:
The 3 oil transfer pipes
9f, 9g
and
9h
located inside
the front case need not be removed unless they are
damaged, or the gearbox oil has been contaminated. If they
are to be removed see
Powershift Gearbox - Inspection
.
4x4 Gearbox:
pipe
9h
not fitted.
10
Remove the Clutch/Shaft Assemblies
a
Carefully lift out the clutch/shaft assemblies in the
following order:
10a
- 6 speed clutch shaft (not fitted to
4x4 Gearbox
)
10b
- Reverse clutch unit
10c
- Forward/Input clutch shaft
10d
- Layshaft clutch
10e
- Mainshaft clutch
b
Retrieve the bearing outer cups from the rear case
10f
and centre of the transfer gear
10g
. Note that the
layshaft bearing cup
10h
can not be removed until the
transfer gear/output shaft has been removed, see step
11. Keep the cups together with their associated
bearings.
125 - 6
Section F
9803/3280
Section F
125 - 6
Issue 2*
Powershift Gearbox
Dismantling (cont’d)
*