Cab Heater

1. Turn ignition key switch to RUN position.

2. 
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   Push the top of the heater switch (A) to one of two positions.
   • Heater switch positions: When the bottom of the switch is fully pressed, the switch is in the Off position. Press the top of the switch to the middle position for Low heat. Press the top of the switch to the upper position for High heat.
   
   

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3. A replaceable fuse (C) under the hood is the fusible link. If the heater fails to turn on after following correct procedures, check for a blown fuse.

   When the heater is turned on, the Icon (B) in the switch illuminates, and the fan starts.

4. When the heater is turned off, the Icon in the switch goes off, and the fan stops running.