Overheating / Diagnosis - Polaris 2012 RANGER RZR 570 INTL Service Manual

CLUTCHING

Overheating / Diagnosis

During routine maintenance, or whenever PVT system overheating is evident, it's important to check the inlet and outlet
ducting for obstructions. Obstructions to air flow th rough the ducts will significantly increase PVT system operating
temperatures. The vehicle should be operated in Low when plowing or pulling heavy load s, or if extended low s peed
operation is anticipated.
CLUTCH DRIVE BELT & COVER RELATED ISSUES: DIAGNOSIS
Possible Causes
Loading the vehicle into a truck or tall
trailer when in high range.
Starting out going up a steep incline from
a stopped position.
Driving at low RPM or low ground speed
(at approximately 3-7 MPH).
Insufficient engine warm-up when
exposed to low ambient temperatures.
Slow and easy clutch engagement.
Towing/Pushing at low RPM or low
ground speed.
Plowing snow, dirt, etc./utility use.
Stuck in mud or snow.
Climbing over large objects from a
stopped position.
Belt slippage from water or snow
ingestion into the PVT system.
Clutch malfunction.
Poor engine performance.
GENERAL RANGE OPERATION
GUIDELINES:
Operating in Low Gear
Low gear s hould be used when pulling heavy loads, riding through rough terrai n, or when basic operational ground
speeds are less than 7 MPH. Use High gear when basic operational ground speeds are more than 7 MPH.
IMPORTANT: Using High gear for heavy loads, hilly terrain, or in wet, muddy conditions will increase the chance
of drive belt burning.
6.4
Shift transmission to Low during loading of the vehicle to prevent belt burning.
When starting out on an incline, use Low gear. Shift transmission to Low
during loading of the vehicle to prevent belt burning.
Drive at higher speed or use Low. The use of Low is highly recommended for
cooler PVT operating temperatures and longer component life.
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.
Fast, effective use of the throttle for efficient engagement.
Use Low only.
Use Low only.
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.
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.
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 component inspection should be performed by a Polaris MSD cer t ified
technician.
Fouled spark plugs, foreign material in fuel tank, restricted fuel lines, or faulty
fuel pump may cause symptoms similar to clutching malfunction.
Low: Heavy pulling, basic operational speeds less than 7 MPH, riding
through rough terrain (swamps, mountains, ect.), or low ground speeds.
High: High ground speeds, or speeds above 7 MPH.
9923523 - 2012 RANGER RZR 570 Service Manual
© Copyright 2011 Polaris Sales Inc.
Solutions / What to do