CONTROLS, INSTRUMENTS ANn··oPERATION·-·
--
Power Adjust Procedure - Left-hand
Wheel
(all models)
Position the left-hand
wheel
with
the stop
lugs
at
the
bottom
and
loosen the
nuts
on
all
the
clamp
at-
taching
bolts.
If an increase
in
track
width
is
required,
remove
the
stop lug
to
the right of
the
clamp
and
relocate
in the appropriate hole
in
the
rail.
NOTE:
If
the
wheel
is
to
be
adjusted to
the
mini-
mum
or
maximum
setting
within
a
range
then
re-
move
one
stop
lug.
The
end of
the
rail
will act
as
a
stop.
The
minimum
track
setting
may
not
be
at-
tainable
due
to
minimal
clearance
between
tires
and
fenders
or
equipment.
With
the
engine running, select a
low
forward
gear, apply
the
right-hand
footbrake,
release
the
handbrake
and
engage
the
clutch.
Forward
rota-
tion
of
the
centre
disc
will
cause
the
left-hand rim
to
move outwards.
Conversely, relocate
the
left-hand stop
lug,
se-
lect a
low
reverse
gear,
apply
the
right-band
footbrake, release the
handbrake
and
engage
the
clutch
to
move
the
left-hand rim inwards.
Reset
the
second
stop
lug
against
the
other
side
of
the
clamp.
Tighten all
the
clamp
nuts
unifonnly, 50 lbf.ft
(69
Nm)
at a
time,
until
the
following
torques
are
achieved:
28
in.
wheels:
30
and
38
in.
wheels:
225
lbf.ft
(305
Nm)
325
lbf.ft ( 440
Nm)
IMPORTANT: 30 and 38
in.
wheels
only:
Check
the
gap
between
each
clamp
and
the
wheel
disc.
See
Figure
44.
The
gap
should
not
vary
more
than
0.125
in.
(3
mm)
between
any
of
the
six
clamps
otherwise
the
rim
and
tire
will not
run
true
and
excessive
side
loads
will be
imposed
on
one
or
more
of
the
rails.
40
Tighten the stop lug
screws
to
33
lbf.ft (45 Nm).
Power Adjust Procedure -
Ript-band
Wheel
(all models)
Position the right-hand
wheel
with the stop lugs
at
the
bottom
and
loosen
the
nuts on all the clamp at-
taching
bolts.
If
an
increase in track
width
is required, remove
the
stop
lug
to
the
right
of
the clamp
and
relocate
in
the appropriate
hole
in
the rail.
With
the
engine
running,
select a low reverse
gear,
apply
the
left-hand footbrake, release
the
handbrake
and
engage
the
clutch. Rearwald rota-
tion of
the
centre
disc
will
cause the
right-hand
rim
to
move
outwards.
Conversely,
relocate
the
left-hand
stop lug, se-
lect a
low
forward
gear,
apply the left-band
footbrake,
release the handbrake
and
engage
the
clutch
to
move
the
right-hand
rim inwards.
Reset
the
second
stop
lug against the other side
of
the
clamp,
tighten all
the
clamp nuts uniformly
and
recheck
at
the appropriate intervals,
as
previ-
ously
described.
Drive
the
tractor
for
approximately
200
yards
(200
m)
and
check
the
clamp nut torques.
Re-
check
the
torque
settings after 1 hour
and
8 hours
operation
and thereafter at
the
SO
hour service in-
terval.
NOTE:
Use
aforward
gear
to move the left-hand
rim
outwards
or
the
right-hand
rim
inwards.
Conversely,
a
reverse
gear
is used
to
move the
left-hand
rim
inwards
or
the
right-hand rim out-
wards.
Changing Track Width
Range-28
in. wheels
To
change
from
one
track width range to another it
is
necessary
to
change
the
wheel disc around. 1be
simplest
way
to
achieve
this
is to inter-change
the
left
and
right-hand
wheels.
If, for example, the
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