Belt Wear / Burn Diagnostics - Polaris IQ 2007 Service Manual

PVT System

Belt Wear / Burn Diagnostics

POSSIBLE CAUSE
Driving at or about engagement RPM for extended periods of
time in any type of snow condition.
Cold weather startups
Towing another machine at or about engagement RPM
Spinning track while vehicle is stuck (high RPM, low vehicle
speed, high ambient temp. Example: 8000 RPM, 10mph
actual vehicle speed and 60 m.p.h. indicated on speedometer.
Ice and snow piled up between track and tunnel overnight or
after stopping for a long period of time (enough to re-freeze
the snow).
Poor running engine (Bog, Miss, Backfire, etc.)
Loading machine on trailer
Clutch malfunction
Slow, easy belt engagement - easing on the throttle
7.10
Table 7-1: Belt Wear / Burn Diagnostics
SOLUTION
Drive at higher RPM if possible. Gear the machine down.
Make sure belt deflection is at 1 1/4" to achieve optimum
starting ratio.
Be patient. Warm up engine at least 5 minutes or until it
readily responds to throttle input. For the quickest most
efficient drive away in extreme cold weather, take drive belt
off machine and bring it in to a warm environment. Break
skis and track loose from the snow. Engage throttle
aggressively for short durations for initial cold drive away
When possible, do not go in deep snow when towing another
machine. Use fast, effective throttle to engage the clutch. Not
all machines are intended for pulling heavy loads or other
machines.
Lower the gear ratio. Remove windage plates from driven
clutch. If possible, move to better snow conditions and
reduce RPM. Avoid riding in very high ambient temperatures
Break loose snow and ice under tunnel. Allow longer than
normal warm-up. Allow belt to warm sufficiently and
increase grip ability on clutch sheaves. Use fast, effective
throttle when engaging clutch.
Maintain good state of tune including throttle and choke
synchronization. Check for fouled spark plug(s). Check for
foreign material in carburetors. Make sure no water or ice is
present in the fuel tank, lines, or carburetors.
Use caution when loading machine. Carbide skags may
gouge into trailer and prevent drive train from spinning
freely. Use enough speed to drive completely onto trailer. If
machine cannot be driven completely onto trailer, it may need
to be pulled or pushed to avoid belt wear / burning.
Check for correct clutch components, or damage on the
clutch
Use fast, effective throttle to engage the clutch.