OPERATOR'S STATION • Blower Switch (9) The blower speed is controlled from Lo to Hi in 4 steps. When the but- ton is pressed, the blower speed is reduced by one step. The blower speed indicator corresponding to the blower running in the HI mode. Then, each time the button is pressed first, the blower starts speed is lit. When the button is pressed first, the blower starts running in the LO mode. Then, each time the M178-01-072 10 9 button is pressed, the blower speed is increased by one step. Press blower OFF switch (10) to stop the blower operation. • Fresh Air Mode Switch (7): Changes the air circulation mode.
When fresh air vent switch (7) is pressed, the indicator comes ON and the fresh air circulation mode is selected, allowing fresh air to flow in. When fresh air mode switch (7) is pressed again, the indicator goes OFF and the circulation mode is se- lected. 7 M178-01-072 CAB HEATER OPERATION When any mode switches (6) are pressed ( ), warm air will flow out from the corresponding vent. However, the foot vent mode , , 6 is commonly used for cab heating. switch (6). Set temperature control switch (8) to the right end position. Press foot mode Press blower switch (9) to blow warm air out of the foot vents.
Adjust the air temperature in the cab by operating tempera- ture control switch (8) and blower switch (9). When required to quickly increase air temperature in the cab, select the air recir- culation mode. However, if air recirculation mode is used for a long time, the windowpanes will become clouded due to a difference in temperature between outside and inside the cab. Occasionally ventilate the cab. (When the fresh air circulation mode is selected, the windowpanes will be prevented from becoming clouded.) M178-01-072 8 9 M1U1-01-024 1-67