Drive Chain; Drive Chain Tensioner; Rear Suspension - Arctic Cat AC 120 2007 Operator's Manual

2. Loosen the rearward brake cable
jam nut; then tighten the forward
jam nut to set up the brake.
3. Check the brake lever travel dis-
tance periodically while tightening
the forward jam nut. When the dis-
tance is within the specified range
of 6-13 mm (1/4-1/2 in.), tighten
the rearward jam nut to secure the
adjustment.

DRIVE CHAIN

The drive chain should be lubricated
every 10 operating hours with Arctic
Cat Spray Lubricant (p/n 0436-887) or
with a dry, graphite-based chain lubri-
cant. By using the spray lubricant or a
dry, graphite-based chain lubricant, dirt
buildup on the drive chain will be mini-
mized. Before each lubrication, inspect
the drive chain for dirt accumulation.
To lubricate the drive chain, shut the
engine off and wait for all moving parts
to stop, remove the drive chain shield,
and lubricate the drive chain. After
lubricating the drive chain, install the
drive chain shield.
14
NOTE: If the spray lubricant or
a dry, graphite-based chain lubri-
cant is not available, lubricate the
drive chain with several drops of
petroleum-based oil. If the snow-
mobile is operated in the summer
with the optional wheel kit, the
drive chain should be lubricated
more frequently.
DRIVE CHAIN
TENSIONER
The drive chain tensioner is automatic;
0735-457
therefore, no adjustment is required by
the snowmobile owner. The tensioner
and chain should be checked annually
for proper operation and excessive wear
and replaced when necessary. Check the
tensioner by pushing down on it and
releasing it. It should immediately
spring back and put tension on the drive
chain.

REAR SUSPENSION

(Every 20 Operating
Hours)
1. Shut engine off and wait for all
moving parts to stop.
2. With the gas tank nearly empty
(less than 1/4 full), lay the snow-
mobile on its side. A piece of card-
board should be used to protect the
finish on the hood and belly pan.
3. Remove ice and snow buildup from
the skid frame to expose the two
grease fittings.
4. Lubricate the grease fittings with a
low-temperature grease.