jcb Groundhog 6x4, Service Manual

Page: 172 / 227

Section F - Transmission
F-7 F-7
9803/9390-2
Driver Pulley
Removal and Replacement
1 Park the machine on firm level ground. Apply the
parking brake and chock the wheels.
2 The load bay needs to be raised to gain access to the
engine bay. Ensure that the load bay is properly
supported while working beneath it -
refer to the
Handbook .
3 Disconnect the battery to prevent the vehicle being
started.
4 Remove the CVT drivebelt, easing it off the pulleys.
Rotate the pulleys if necessary to aid removal,
K
Fig 2. (
T
F-8)
5 Remove the bolt B and washer C ,
K
Fig 1. (
T
F-7) .
Use service tool (extractor)
K
Table 1. (
T
F-3) to
withdraw the driver pulley A from the flywheel tapered
output shaft D . Note that there is a hole provided in
the chassis side panel, to aid access .
Note: If required, the output shaft D may be removed from
the flywheel. Loosen and remove the three cap screws and
washers E & F. When replacing, torque tighten the screws
E progressively to 72 Nm (53 lbf-ft).
Fig 1. Driver Pulley Installation
Replacement
Replacement is the reverse of removal, but note the
following:
1 Correctly torque tighten fasteners:
Table 1. Torque Settings
2 The Driven Pulleys must be correctly aligned
- see setting dimension
A
K
Fig 2. (
T
F-8) which
shows the minimum offset from the engine block
(measured from back face of both pulleys).
Note this
is not adjustable, but instead is dependent upon
accurate installation of the engine, transaxle and CVT
components.
Note: Poor belt alignment will lead to premature wear of
the belt and excessive wear to the edges. In extreme
cases, the belt may ride off the pulleys.
3 The drivebelt is self-tensioning. Renew worn belts.
A
C
B
D
F
E
C025080
Item Bolt
Grade
Nm lbf ft
Driver Pulley Bolt 43 32
Shaft to Flywheel Screws 12.9 72 53