Track Tension - Arctic Cat ZR 3000 Operator's Manual


NOTE: Push down on the belt with
the ruler only until the bottom of the
belt flexes upward; then read the
amount of deflection.
4. To correct drive belt deflection,
loosen the jam nut on the belt width
adjuster on the stationary sheave;
then using an Allen wrench, adjust
the set screw as needed. While hold-
ing the set screw, tighten the jam nut
securely.

NOTE: Make sure the jam nut and
set screw is located on the opposite
side of the driven clutch when
checking or adjusting the deflection.

NOTE: Turning the set screw clock-
wise increases distance between the
sheaves (increases belt deflection
measurement); turning the set screw
counterclockwise
tance between
(decreases belt deflection measure-
ment).
40
0748-987
SNO-597A
decreases dis-
the sheaves

Track Tension

Track tension is directly related to the
overall performance of the snowmobile. If
the track is too loose, it may slap against
the tunnel causing wear or it may "ratchet"
on the track drive sprockets. If extremely
loose, the idler wheels may climb over the
track lugs forcing the track against the tun-
nel causing the track to "lock."
Arctic Cat recommends that the track ten-
sion be checked daily during the first 300
miles of operation and once a week there-
after and adjusted according to need. The
track will stretch and take a "set" during
break-in. Track deflection must be main-
tained within the recommended range.
! WARNING
Track tension must be properly main-
tained. Personal injury could result if
a track is allowed to become exces-
sively loose.
Checking Track Tension
! WARNING
DO NOT attempt to check or adjust
track tension with engine running.
Turn ignition key to the OFF position.
Personal injury could result from con-
tact with a rotating track.
1. Remove excess ice and snow buildup
from the track, track drive sprockets,
and the inside of the skid frame.
2. Elevate the snowmobile on a
shielded safety stand high enough to
use a spring scale.
3. At mid-point of the track (on the bot-
tom side), hook a spring scale around a
track clip; then pull down on the scale
to 20 ft-lb. Measure the deflection (dis-
tance) between the bottom of the wear
strip and the inside surface of the track
clip. Measurement should be 51 mm (2
in.).