11. EXPLANATION OF COMPONENTS 3. DEFROSTER CHANGE-OVER LEVER This lever is used to eliminate condensation produced in winter or the rainy season etc. Change-over lever forward: defroster Change-over lever backward: to operator's feet Defroster is available when using the air outlet change-over lever in or 11.10.2 PREPARING CAR HEATER If the ambient temperature drops, use the cab heater. When using the cab heater, turn valve on the water pump counterclockwise to open it. When leaving the cab heater unused for a long time, turn valve clockwise to close it. REMARK On machines equipped with the air conditioner system always open valve . PC130/150LGP-6K ENG 2-31