MAINTENANCE
77
NOTE: When adjusting air pres-
sure, all weight must be removed
from the front suspension, and
the shock absorbers must be fully
extended.
NOTE: Adding air pressure will
increase the air spring force;
reducing air pressure will
decrease air spring force.
1. Remove the air valve cap from
the shock.
2. Thread the valve of Air Shock
Pump (p/n 2603-614) onto the
shock air valve approximately six
rotations.
NOTE: As the pump is being
attached to the shock, the hose
will fill with air. This will result in a
lower gauge pressure 0.14-3.52
kg/cm
2
(2-5 psi).
3. To decrease air pressure in the
shock, press the black bleed valve
button half way down and hold
until desired pressure is attained.
NOTE: Pressing the button fully
down and releasing it will allow
only a small amount of air to
escape (micro-adjust).
4. To increase air pressure in the
shock, pump until desired pres-
sure is attained.
5. Remove the pump valve from the
shock air valve.
NOTE: As the pump valve is
being removed from the shock,
the sound of air loss is from the
pump hose, not from the shock.
6. Install the air valve cap onto the
shock.
Skid Frame Front Arm
NOTE: On some models, the
front arm limiter straps are not
adjustable.
The skid frame front arm shock spring
and limiter straps are adjustable. How-
ever, Arctic Cat recommends that the
shock spring be maintained as loose as
possible. Tightening the skid frame
front arm shock spring may cause
improper balance and may ruin the
handling features of the snowmobile.
The length adjustment of the front arm
limiter straps determines the weight
distribution between the front of the
skid frame and the skis. Tightening the
limiter strap (shortening the strap) will
pull up on the front of the skid frame
and will increase ski pressure. Loosen-
ing the limiter strap (lengthening the
strap) lowers the front of the skid
frame and decreases ski pressure.
When customizing the amount of ski
pressure, be sure to adjust both straps
equally and do not over-adjust the lim-
iter straps to adversely affect steering
and operator control of the snowmo-
bile. Some experimentation may be
required until the proper adjustment
for the operator’s individual style is
obtained.
! WARNING
Do not exceed 105 kg/cm
2
(150
psi) in the shock.
! WARNING
Do not adjust the front arm limiter
straps to a point at which steering
and operator control of the snow-
mobile are adversely affected.