Reverse Operation - Arctic Cat ZR4000 2016 Operator's Manual

! WARNING
When installing studs on a single-ply
track, it is important to use Arctic
Cat-approved studs (proper head
diameter). If approved studs (proper
head diameter) are not used, studs
could tear free of the track causing
possible injury or even death. Con-
sult an authorized Arctic Cat Snow-
mobile dealer for information.
CAUTION
To prevent tunnel damage from the
studs, install Tunnel Protector Kit (p/
n 6639-075) for the ZR, (p/n 6639-118)
for the XF, or (p/n 6639-207) for HCR.
For proper installation, use the following
procedure:
1. Using the appropriate stud template
(see chart), mark the desired stud
pattern to be used.
Track Length
129/137 in.
141 in.
2. Using the proper-sized stud hole
drill bit, drill out the stud holes.
3. Push the stud through the hole from
inside the track; then place the
domed support plate and lock nut on
the exposed stud.
4. Using a wrench to secure the stud,
tighten the lock nut on the exposed stud.
It is also recommended that whenever
studs are installed on a track, carbide
wear bars should be installed on the skis.
Carbide wear bars complement the track
studs to balance steering control under
these conditions. The length of the car-
bide on the wear bars should be propor-
tionate to the number of track studs (i.e.
small number of track studs — short
length of carbide...many track studs —
long length of carbide). The proper pro-
portion between the number of studs and
carbide length on the wear bar will main-
tain steering balance.
16
p/n
6639-532
4639-991
! WARNING
Always balance the snowmobile with
the proper proportion between the
number of studs and carbide length
on the wear bars. Do not "over drive"
conditions; use common sense in all
operating conditions.
CAUTION
Do not use studs that are more than
9.525 mm (0.375 in.) longer than the
track lug height.
! WARNING
Do not operate a snowmobile with
loose studs as they may be thrown
from the track. Always use a shielded
safety stand whenever performing
any maintenance or adjustments.
! WARNING
DO NOT stand behind the snowmo-
bile or near the rotating track. NEVER
run the track at high speed when the
track is suspended.

Reverse Operation

The engine reverse function offers the
operator the convenience of being able to
back up the snowmobile rather than hav-
ing to turn the snowmobile around by
hand. This feature, under most situations,
should not be used to free a stuck snow-
mobile as it will tend to dig the skis
deeper into the snow. Always use mini-
mal speed when operating in reverse.
Shifting Into Reverse
741-438A