Rear Suspension - Arctic Cat ZR4000 2016 Operator's Manual

2. Install the actuator extension and
gently rotate counter clockwise to
make sure the shift fork is in the for-
ward position.
3. Remove the actuator extension; then
re-install the actuator extension
making sure the notch in the exten-
sion is directed downward.
4. Install spring into the bottom of
detent block and install into the
chain case cover. The notch in the
extension should be lined up with
the notch in the block.

NOTE: Rotate the extension clock-
wise approximately 20° making sure
not to pull out the extension when
rotating. This is only to aid in the
installation of the actuator.
5. Install the actuator and secure using
the existing three torx screws.
Tighten to 36 in-lb.
6. Connect the harness to the gear posi-
tion sensor; then secure the connec-
tor to the main harness using a cable
tie.
26
7. Start the engine and verify proper
reverse and forward operation by shift-
ing in and out of reverse three times.

NOTE: If excessive build-up of
moisture or
detected in the chain case, it may be
necessary to replace the lube.

Rear Suspension

This procedure should be done every 40
operating hours.

NOTE: Arctic Cat recommends that
Arctic Cat All-Temp Grease (p/n 4639-
365) be used for this procedure.
1. Using Handlebar Stand (p/n 5639-
152) or Steering Post Stand (p/n
5639-946) or a suitable substitute,
lay the snowmobile on its left side.
2. Lubricate all grease fittings with all-
temperature grease.
0748-259
discolored oil is