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OPERATION
Operating Conditions
NOTICE: Observe the following environmental operating conditions to maintain engine performance
and avoid premature engine wear.
• Avoid operating in the presence of chemical gases or fumes.
• Avoid operating in a corrosive atmosphere such as salt water spray.
• NEVER operate the engine in a floodplain unless proper precautions are taken to avoid
being subject to a flood.
• NEVER expose the engine to the rain.
• The standard range of ambient temperatures for the normal operation of YANMAR
engines is from +5° F (-15° C) to +104° F (+40° C).
• If the ambient temperature exceeds +104° F (+40° C), the engine may overheat and cause
the engine oil to break down.
• If the ambient temperature is between +5° F (-15° C) and -25° F (-32° C), POLARIS
recommends the use of a block heater.
Starting the Engine
NOTICE: NEVER use an engine starting aid such as ether. Engine
damage will result.
Before operating this vehicle in cold weather, review the cold
weather operation information beginning on page 37.
Always wait for the glow plug indicator light to turn off before
cranking the engine.
Tip: Engine will not start unless: Gear selector is in Park, Neutral, or
treadle pedal is in neutral and PTO (if equipped) is OFF.
1. Always start the engine outdoors or in a well-ventilated area.
2. Sit in the driver's seat and fasten the seat belt.
3. Apply the brakes.
4. Put the gear selector lever in the Park position.
5. Turn the ignition switch to the ON position and wait for the glow plug indicator light to
turn off before cranking the engine.
6. Turn the ignition switch past the ON position to START. Engage the starter for a
maximum of five seconds. Release the key when the engine starts.
7. If the engine does not start within five seconds, release the ignition switch and wait five
seconds. Repeat steps 5 and 6 until the engine starts.
8. Allow the engine to warm to operating temperature. (For Models HD and HD
PTO; Vary
the engine RPM slightly with the engine speed control lever to aid in warm up until the
engine idles smoothly.)
NOTICE: Operating the vehicle immediately after starting could cause engine and hydraulic
component damage. Allow the engine to warm up for several minutes before operating the
vehicle.
START
HELP