Engagement Speed Check; Track Tension Adjustment - Yamaha SXV70ERG Supplementary Service Manual

ENGAGEMENT SPEED CHECK/

TRACK TENSION ADJUSTMENT

ENGAGEMENT SPEED CHECK
1. Place the machine on a level surface of hard-
packed snow.
2. Check:
S Clutch engagement speed
Checking steps:
S Start the engine, and open the throttle lever
gradually.
S Check the engine speed when the machine
starts moving forward.
Out of specification ! Adjust the primary
sheave.
TRACK TENSION ADJUSTMENT
A broken track or track fittings, and debris
thrown by the track could be dangerous to
an operator or bystanders. Observe the fol-
lowing precautions.
S Do not allow anyone to stand behind the
machine when the engine is running.
S When the rear of the machine is raised to
allow the track to spin, a suitable stand
must be used to support the rear of the ma-
chine. Never allow anyone to hold the rear
of the machine off the ground to allow the
track to spin. Never allow anyone near a ro-
tating track.
S Inspect the condition of the track frequent-
ly.
Replace the track if it is damaged to a level
where the fabric reinforcement material is
visible.
S Never install studs (cleats) closer than 76
mm (3 in) to the edge of the track.
1. Lift the rear of the machine onto a suitable
stand to raise the track off the ground.
2. Measure:
S Track deflection a
Using a spring scale 1 , pull down on the
center of the track with 10 kg (22 lb) of force.
Out of specification ! Adjust.
–19–
Engagement speed:
3,900 ± 200 r/min
(3,700 X 4,100 r/min)
WARNING
Track deflection:
25 X 30 mm (0.98 X 1.18 in)
INSP
ADJ