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PVT SYSTEM
TROUBLESHOOTING - PVT SYSTEM
TROUBLESHOOTING
SITUATION
Engine RPM below specified
operating range, although engine
is properly tuned.
Erratic engine operating RPM
during acceleration or load
variations.
Engine RPM above specified
operating range.
Harsh drive clutch engagement.
Drive belt turns over
5.32
PROBABLE CAUSE
-Wrong or broken drive clutch
spring.
-Drive clutch shift weight too heavy.
-Driven clutch spring broken or
installed in wrong helix location.
-Drive clutch binding.
-Belt worn unevenly - thin / burnt
spots.
-Driven clutch malfunction.
-Sheave face grooved.
-Incorrect drive clutch spring (too
high of rate).
-Drive clutch shift weights incorrect
for application (too light).
-Drive clutch binding.
-Driven clutch binding.
-Converter sheaves greasy; belt
slipage.
-Drive belt worn too narrow.
-Excessive belt / sheave clearance
with new belt.
-Worn spider rollers / worn spider
roller washers
-Wrong belt for application.
9929399 R01 - 2018-2019 RANGER XP/ CREW 900/1000 Service Manual
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 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.
-Replace belt.
-Perform belt / sheave clearance
adjustment with shim washers beneath
spider.
-Replace spider rollers / spider roller
washers
-Replace with correct belt.
© Copyright Polaris Industries Inc.
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Troubleshooting
