23
NOTE: Push down on the belt with the ruler only
until the bottom of the belt flexes upward; then
read the amount of deflection.
5. To correct drive belt deflection, loosen the jam nut
on the belt width adjuster on the stationary sheave.
6. Using an Allen wrench, adjust the set screw as
needed.
NOTE: Turning the set screw clockwise increases
distance between the sheaves (increases belt
deflection measurement); turning the set screw
counterclockwise decreases distance between the
sheaves (decreases belt deflection measurement).
HYDRAULIC BRAKE SYSTEM
Checking Brake Fluid
1. With the brake fluid reservoir in a level position,
check the fluid level. The brake fluid level must be
just below the high mark.
2. If the brake fluid level is below the low mark,
remove the reservoir cover and add Arctic Cat
approved brake fluid until the fluid level is just
below the high mark. Install and secure the reser-
voir cover. Do not allow moisture to contaminate
the brake system.
Checking Brake Lever Operation
1. Test the operation of the hydraulic brake system
by compressing the brake lever.
2. The brake lever must feel firm when compressed.
RECOMMENDED GASOLINE
The recommended gasoline to use is 87 octane regular
unleaded. In many areas, oxygenates (either ethanol or
MTBE) are added to the gasoline. Oxygenated gaso-
lines containing up to 10% ethanol or up to 15%
MTBE are acceptable gasolines.
When using ethanol blended gasoline, it is not neces-
sary to add a gasoline antifreeze since ethanol will pre-
vent the accumulation of moisture in the fuel system.
NOTE: Please advise the customer (when taking
delivery of the snowmobile) that for optimum per-
formance not to exceed the recommended 87
octane gasoline. Using a higher octane gasoline
will not increase overall performance.
CHECKING HEADLIGHT AIM
1. Position the snowmobile on a level floor so the
headlight is approximately 8 m (25 ft) from an
aiming surface (wall or similar surface).
NOTE: There should be an “average” operating
load on the snowmobile when adjusting headlight
aim.
2. Measure the distance from the floor to midpoint of
the headlight.
3. Using the measurement obtained in step 2, make a
horizontal mark on the aiming surface.
4. Make a vertical mark which intersects the horizon-
tal mark on the aiming surface directly in front of
the headlight.
5. Engage the brake lever lock and start the engine.
Move the headlight dimmer switch to the HIGH
beam position. DO NOT USE LOW BEAM.
6. Observe the headlight beam aim. Proper aim is
when the most intense beam is centered on the ver-
tical mark 5 cm (2 in.) below the horizontal mark
on the aiming surface.
0743-091
7. Adjust the headlight adjustment knobs until cor-
rect aim is obtained. Shut the engine off; then dis-
engage the brake lever lock.
PREOPERATION CHECKS
1. Visually check all fluid levels. Add fluids as nec-
essary.
CAUTION
Brake fluid is highly corrosive. Do not spill brake fluid
on any surface of the snowmobile.
! WARNING
Do not overfill the brake fluid reservoir. Overfilling the
reservoir may cause the brake system to hydraulically
lock. Use only Arctic Cat approved brake fluid.
CAUTION
Use a 100:1 premix fuel in the gas tank during break-in
or engine damage may occur.
CAUTION
Do not use white gas or gasolines containing metha-
nol. Only Arctic Cat approved gasoline additives
should be used.
Summary of Contents for 500 Sno Pro
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Page 95: ...Printed in U S A Trademarks of Arctic Cat Inc Thief River Falls MN 56701 p n 2258 721...