Troubleshooting - Polaris 2009 Trail Boss 330 Service Manual

4. Install nut onto puller rod and hand tighten against
installation tool.
5. Turn clutch sheave counterclockwise until
bushing is seated.

TROUBLESHOOTING

Situation
Engine RPM -Wrong or broken drive clutch spring.
below specified
operating -Drive clutch shift weight too heavy.
range, although
engine is prop- -Driven clutch spring broken or installed in
erly tuned. wrong helix location.
Erratic engine -Drive clutch binding.
operating RPM
during accelera-
tion or load vari-
ations.
-Belt worn unevenly - thin/burnt spots
-Driven clutch malfunction.
-Sheave face grooved.
Engine RPM -Incorrect drive clutch spring (too high
above specified spring rate).
operating
range. -Drive clutch shift weights incorrect for ap-
plication (too light).
-Drive clutch binding.
-Driven clutch binding.
-Converter sheaves greasy; belt slippage.
Probable Cause
6. Remove nut from puller rod and set aside.
7. Remove installation tool and clutch sheave from
puller.
8. Repeat installation procedure for other moveable
bushing.
Remedy
-Replace with recommended spring.
-Install correct shift weight kit to match engine application.
-Replace spring; refer to proper installation location.
a. Disassemble drive clutch; inspect shift weights for wear
and free operation.
b. Clean and polish stationary shaft hub; reassemble clutch
without spring to determine problem area.
Replace belt
a. Replace ramp buttons.
b. Inspect movable sheave for excessive bushing clearance/
replace.
-Replace the clutch.
-Install correct recommended spring.
-Install correct recommended shift weights.
-Disassemble and clean clutch, inspecting shift weights and
rollers. Reassemble without the spring and move sheaves
through entire range to further determine probable cause.
-Disassemble, clean, and inspect driven clutch, noting worn
sheave bushing and ramp buttons and helix spring location.
-Clean sheaves with denatured alcohol or brake cleaner,
install new belt.
CLUTCH
6.23