9850043 R01 - 2017-2021
RANGER
500 / 570 Service Manual
© Copyright Polaris Inc.
1.93
PVT SYSTEM OVERHEATING / DIAGNOSIS
During routine maintenance, or whenever PVT system overheating is evident, it’s important to check the inlet
and
outlet duct for obstructions. Obstructions to air flow through the ducts will significantly increase PVT system operating
temperatures. The vehicle should be operated in Low when extended low vehicle speed operation is anticipated.
CLUTCH DRIVE BELT & COVER RELATED ISSUES: DIAGNOSIS
POSSIBLE CAUSES
SOLUTIONS / WHAT TO DO
Loading the vehicle into a tall trailer when in
high range.
Shift transmission to Low during loading of the vehicle to prevent belt burning.
Starting out going up a steep incline from a
stopped position.
When starting out on an incline, use Low gear. Shift transmission to Low during
loading of the vehicle to prevent belt burning.
Driving at low RPM or low ground speed (at
approximately 3-7 MPH).
Drive at higher speed or use Low. The use of Low is highly recommended for
cooler PVT operating temperatures and longer component life.
Insufficient engine warm-up when exposed
to low ambient temperatures.
Warm engine at least 5 min., then with transmission in neutral, advance throttle to
approx. 1/8 throttle in short bursts, 5 to 7 times. The belt will become more flexible
and prevent belt burning.
Slow and easy clutch engagement.
Fast, effective use of the throttle for efficient engagement.
Stuck in mud or snow.
Shift the transmission to Low, carefully use fast, aggressive throttle application to
engage clutch.
WARNING:
Excessive throttle may cause loss of control and
vehicle overturn.
Climbing over large objects from a stopped
position.
Shift the transmission to Low, carefully use fast, aggressive, brief throttle
application to engage clutch.
WARNING:
Excessive throttle may cause loss of
control and vehicle overturn.
Belt slippage from water or snow ingestion
into the PVT system.
Remove the PVT drain plug. Shift the transmission to neutral. Using the throttle,
vary the engine rpm from idle to full throttle. Repeat several times as required.
During this procedure, the throttle should not be held at the full position for more
than 10 seconds. Clutch seals should be inspected for damage if repeated leaking
occurs.
Clutch malfunction.
Clutch component inspection should be performed by a Polaris MSD certified
technician.
Poor engine performance.
Fouled spark plugs, foreign material in fuel tank, restricted fuel lines, or faulty fuel
pump may cause symptoms similar to clutching malfunction.
GENERAL RANGE OPERATION
GUIDELINES:
Low:
Basic operational speeds less than 7 MPH, riding through rough terrain
(swamps, mountains, ect.), or low ground speeds and when continuously
operating at speeds less than 30 mph in sand/dune environments.
High:
High ground speeds, or speeds above 7 MPH.
Operating in Low Gear
Low gear should be used when riding through rough terrain or when basic operational ground speeds are less than 7
MPH. Use High gear when basic operational ground speeds are more than 7 MPH.
General Sand / Dune Driving
The use of Low gear when continuously operating at speeds less than 30 mph will greatly increase belt life in sand/
dune environments.
NOTICE
Do not shift from Low to High without coming to a complete stop.
Using High gear for heavy loads, hilly terrain, sand/dune environments, or in wet, muddy conditions will increase the
chance of drive belt burning.
Summary of Contents for RANGER 500 2017
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