. OPERATION DETAILED CONTROLS AND GAUGES cab during cab or to moves into the blue range. 3 - 50 Air Circulation Selector Switch (External Air Circulation) When switch (2 heati ng or cooli This position is remo ve the mis t from the ca b window Air Circulation Selector Switch (Internal Air Circulation) When switch (2 ) is pressed, the air in side th e cab is re circulated and n o fresh air is taken in fro m outsid e. This position is used when heati ng or cooli ng the cab qu ickly or when th e outside air is dirty.
Temperature Control Switch (Cooling) The more the indicator is in the lower the temperature is t he more the i ndicator i s in the red range, the higher the te mperature The i ndicator ra nge is divide d into 11 l evels, b ut within e ach range the te mperature changes sle eplessly. Use s witch (3) t o reduce the temperature. Press this switc h to reduce th e temperature o f the air se nt from the air co nditioner. ower the The l temperature