OPERATION EXPLANATION OF COMPONENTS HEATER (Machine equipped with cab, heater) EXPLANATION OF PARTS (1) FRESH/RECIRC selector lever (3) Temperature control lever (2) Blower switch FRESH/RECIRC SELECTOR LEVER This lever (1) changes the air intake port used when cooling or heating. RECIRC: If lever (1) is shifted to the left, the air conditioner sucks inside air. Set the lever to this position to cool or heat strongly. Ventilation or pressurizing function is not applied at this position. FRESH: If lever (1) is shifted to the right, the air condi- tioner sucks outside air. Set the lever to this posi- tion for normal cooling or heating. In this position, the cab is ventilated.
It is also pressur- ized to prevent entry of dust. BLOWER SWITCH This switch (2) acts as the wind flow control switch and main switch when cooling or heating. The air flow can be set to three stages: 1 (LOW) 2 (MEDIUM) 3 (HIGH). If the switch is set to 0, the power is switched off and the heater stops. 3-39