Arctic Cat 660 cc Service Manual page 239

23. On the Bearcat, remove the two torx-head screws
and the hose clamp securing the air plenum to the
mounting bracket and air silencer; then remove the
plenum.
24. Remove the screw securing the air-intake silencer
to the steering support; then pull the silencer
forward and place it on the carburetor/throttle
body assembly.
25. Loosen the set screw on the PTO-side driven shaft
collar. Drive the collar clockwise (opposite shaft
rotation) until it is free.
NOTE: A fine file should be used to remove any
burrs left by the collar set screw.
26. Remove the lock nuts and carriage bolts securing
the PTO-side driven shaft flange plates.
27. Force the driven shaft toward the PTO-side
(rotating the shaft to prevent the brake disc from
binding on the shaft) until brake disc is free.
Account for the key.
28. Continue to slide the driven shaft until it is out of
the PTO-side. Account for a bearing, two flange
plates, and the PTO-side driven shaft collar; then
remove the skid frame from the tunnel (see
Section 9).
29. Remove the three PTO-side lock nuts securing the
driveshaft flange bearing assembly and cable
adapter. On the Bearcat, remove the adapter and
speedometer cable.
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NOTE: On the Touring/Trail models, remove the
three lock nuts securing the voltage regulator/
speedometer pick-up module; then remove the
module.
30. Tap the driveshaft toward the chain case to unseat
the MAG-side bearing. Remove the bearing.
31. Slide the driveshaft toward the MAG-side until the
PTO-side of the driveshaft is out of its mounting
hole. Tilt the end of the driveshaft away from the
tunnel and slide the driveshaft free of the tunnel.
Remove the track.
32. Scribe a line on the driveshaft along the edge of
each sprocket to aid in assembly. Loosen the set
screw on the collar and drive the collar clockwise
until free; then remove the bearing and flange
plates from the driveshaft.
33. Press the sprockets off the driveshaft.
CLEANING AND INSPECTING
NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is
necessary.
1. Thoroughly wash all metallic components in parts-
cleaning solvent. Dry using compressed air.
2. Wash all non-metallic components with soap and
water.
3. Inspect the driveshaft and driven shaft for
damaged splines or stripped threads.
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