Service manual
c
c
• Remove the
drive
sprocket
assembly.
Refer
to
paragraph
To Remove
Drive
Sprocket Assembly.
• Remove the
traction
belt.
•
Reassembly
is
the
reverse
of
removal.
During
reassembly
follow
instructions
given
in
paragraphs
Traction
Belt
Adjustment, and
Drive
Chain Adjust-
ment.
Traction Belt
Adjustment
IMPORT ANT: The
traction
belt
must
be checked
regularly
for
proper
alignment
and tension. When
necessary
to
adjust
the
belt,
first
perform
the
trac-
tion
belt
alignment and then complete the
traction
belt
adjustment
procedures.
Traction Belt
Alignment
• Set the snowmobile on the kickstand on a
level
surface.
• Stand
to
rear
of
sled
and
visually
check the
space
between the
frame
tunnel and the edges of the
trac-
tion
belt.
On a
properly
aligned
track
this
space
should be the
same.
•
If
the
track
is
not
centered,
loosen
the two
lock-
nuts (1,
figure
15)
on
that
side
where
the edge of the
track
is
closest
to the
inside
edge of the tunnel.
Tighten the adjusting
screw
(3)
until
track
is
centered.
Never
run
the engine
inside
a building
without
first
opening
all
doors
and win-
dows to
insure
proper
ventilation.
• With the snowmobile on
its
kickstand,
start
the
engine. Allow
track
to
rotate
several
turns
and then
recheck
track
alignment
to
ensure
that
proper
align-
ment
is
maintained.
•
After
track
alignment
is
complete, tighten
all
locknuts
(1)
and then
check
traction
belt
tension
as
described
in
the following
paragraph.
J5
VICE
AND
REPAIR
Figure
J5
Traction Belt Tension
Adjustment
IMPORTANT: Always check the
traction
belt
for
proper
alignment
before
performing
the
traction
belt
"tension
alignment
procedures.
• Set the snowmobile on a clean,
flat
surface.
Do
not
use
the
k~ckstand.
NOTE: A
properly
tensioned
track
should have a
1
to
1-1/
4-inch
sag
at
the
approximate
top
center
of the
track.
This
can be
determined
as
follows:
•
Rest
a
straight
bar
(figure 16) of sufficient length
along the top
surface
and
near
the
edge of
the
track.
Insert
the
straight
bar
through
the back end of the
snowmobile and
check
for
proper
1 to
1-1/4-inch
sag.
Repeat
procedure
on opposite
side
and note the
difference,
if
any,
in
the
track
tension.
•
If
adjustment
is
necessary,
loosen
the two
lock-
nuts (1,
figure
15) on
each
side
of the
sled
just
sufficiently to
allow
movement of the
belt-adjusting
angle (2).
•
Turn
the
adjusting
screws
(3)
clockwise
to
tighten and counterclockwise
to
loosen
until
proper
track
tension
is
achieved. IMPORTANT: Adjust
both
screws
(3)
equally
so
as
not to
disturb
the
track
alignment.