Polaris Sportsman 850 Service Manual page 234

PVT SYSTEM
SITUATION PROBABLE CAUSE
-Cover seal or ducts leaking
Water ingestion
-Operator error
-Belt worn out
Belt slippage -Water ingestion
-Belt contaminated with oil or grease
-Belt worn or separated, thin spots, loose belt
-Broken or worn clutch components, cover
PVT noise
hitting clutches
Engagement -Thin spots on belt, worn belt
erratic or stabby -Drive clutch bushings stick
5.30
REMEDY
-Instruct operator on guidelines for operation in
proper driving range for different terrain as
outlined in Owner's Safety and Maintenance
Manual
-Find leak and repair as necessary
-Instruct operator on guidelines for operation in
wet terrain as outlined in Owner's Safety and
Maintenance Manual
-Replace belt
-Inspect and seal PVT system
-Inspect and clean
-Replace belt
-Inspect and repair as necessary
-Replace belt. Refer to belt burnt troubleshooting
and instruct operator
-Inspect and repair clutches