EXPLANATION OF COMPONENTS OPERATION HEATING OPERATION When the heating operation is carried out, the inside of the cab is heated, and at the same time the drinks inside the hot and cool box can be heated. HEATING (RECIRC) When the control switch and lever are operated as shown in the diagram, warm air is sent out. Use this position when strong cooling is needed. Place levers (1) and (4) in the position shown in the dia- gram. Set switch (3) to the desired position. HEATING (FRESH) If the air inside the cab is no longer fresh, set FRESH/RECIRC selector lever (1) to FRESH to bring in fresh air. Keep the other switches at the same positions as for heating (RECIRC).
In this position, the inside of the cab is pressurized to prevent the entry of dust. REMARK If the cab is not heated up sufficiently, turn FRESH/RECIRC selector lever (1) back to RECIRC. This increases the heating effect. DEHUMIDIFYING AND HEATING Push switch (2). When temperature control lever (4) is placed at the central position, dry warm air blows out. Keep the other switches at the same positions as for heating (FRESH). REMARK If this is used in spring and fall on rainy days when the air inside the cab is damp, there is no problem of the windows misting up, and the cab be warmed up to a comfortable tem- perature. 3-36