Page 445 - Manual Oficina Polaris Sportsman 570 2014 a 2016

PVT SYSTEM

TROUBLESHOOTING

SITUATION PROBABLE CAUSE REMEDY
-Wrong or broken drive clutch spring. -Replace with recommended spring.
Engine RPM
below specified -Drive clutch shift weight too heavy. -Install correct shift weight kit to match engine
operating range, application.
although engine
is properly tuned. -Driven clutch spring broken or installed in -Replace spring; refer to proper installation
wrong helix location. location.
-Drive clutch binding. 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
Erratic engine problem area.
operating RPM
during -Belt worn unevenly - thin / burnt spots. -Replace belt.
acceleration or
load variations. -Driven clutch malfunction. A. Replace ramp buttons. 5
B. Inspect movable sheave for excessive
bushing clearance.

-Sheave face grooved. -Replace the clutch.
-Incorrect drive clutch spring (too high spring -Install correct recommended spring.
rate).
-Drive clutch shift weights incorrect for -Install correct recommended shift weights.
application (too light).
-Drive clutch binding. -Disassemble and clean clutch, inspecting shift
weights and rollers. Reassemble without the
Engine RPM spring and move sheaves through entire range
above specified to further determine probable cause.
operating range.
-Driven clutch binding. -Disassemble, clean, and inspect driven clutch,
noting worn sheave bushing and ramp buttons
and helix spring location.

-Converter sheaves greasy; belt slipage. -Clean sheaves with denatured alcohol or brake
cleaner, install new belt.
-Drive belt worn too narrow. -Replace belt.
Harsh drive clutch
engagement. -Excessive belt / sheave clearance with new -Perform belt / sheave clearance adjustment
belt. with shim washers beneath spider.
-Wrong belt for application. -Replace with correct belt.
Drive belt turns -Clutch alignment out of spec. -Adjust clutch alignment.
over
-Engine mount broken or loose. -Inspect / adjust or replace.
-Abuse (continued throttle application when -Caution operator to operate machine within
vehicle is stationary, excess load) guidelines.

Belt burnt, thin -Dragging brake -Vehicle operated with park brake on. Inspect
spots brake system.
-Slow, easy clutch engagement
-Fast, effective use of throttle for efficient
engagement.

9926803 R06 - 2014-2016 Sportsman 325 / ETX / 450 HO / 570 Service Manual 5.59
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