Track Alignment - Yamaha SR1NLK Operator's Manual

4. Check track alignment.
5. After proper
obtained, tighten the idler wheel
axle cap screws to 4.7 kg-m (34 ft-
lb); then tighten the adjusting bolts
securely against the axle.

NOTE: Since track tension and
track alignment
always check both even if only one
adjustment seems necessary.
! WARNING
Always make sure the adjusting bolts
are snug against the axle and the idler
wheel cap screws are tightened to
specifications. Failure to do so could
cause the track to become extremely
loose and, under some operating con-
ditions, allow the idler wheels to climb
over the track lugs forcing the track
against the tunnel causing the track to
"lock." If a track "locks" during opera-
tion, severe personal injury could
result.

Track Alignment

Proper track alignment is obtained when
the rear idler wheels are equal distance
from the inner track drive lugs. Excessive
wear to the idler wheels, drive lugs, and
track will occur if the track is improperly
aligned. Yamaha recommends that the
track alignment be checked once a week
or whenever the track tension is adjusted.
Checking Track Alignment
! WARNING
Make sure the ignition key is in the
OFF position and the track is not
rotating before checking or adjusting
track alignment. Personal injury could
result if contact is made with a rotat-
ing track.
1. Remove excess ice and snow buildup
from the track, track drive sprockets,
and the inside of the skid frame.
track tension
are interrelated,
2. Position the tips of the skis against a
wall; then using a shielded safety
is
stand, raise the rear of the snowmo-
bile off the floor making sure the
track is free to rotate.
! WARNING
The tips of the skis must be positioned
against a wall or similar object.
! WARNING
DO NOT stand behind the snowmobile
or near the rotating track. NEVER run
the track at high speed when the track
is suspended.
3. Start the engine and accelerate
slightly. Use only enough throttle to
turn the track several revolutions.
SHUT ENGINE OFF.

NOTE: Allow the track to coast to a
stop. DO NOT apply the brake
because it could produce an inaccu-
rate alignment condition.
4. When the track stops rotating, check
the relationship of the outer track
lugs and the slide rails. If the slide
rails are centered, no adjustment is
necessary.
5. If the idler wheels are not centered,
an adjustment is necessary.
Adjusting Track Alignment
1. On the side of the track which has the
inner track drive lugs closer to the rear
idler wheel, loosen the idler wheel
axle cap screw; then rotate the adjust-
ing bolt clockwise 1 to 1 1/2 turns.
2. Check track alignment and continue
adjustment until proper alignment is
obtained.
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