Komatsu — FRONT PANEL

. OPERATION EXPLANATION OF COMPONENTS FAN ROTATION SELECTOR SWITCH This switch (6) is used to switch the direction of rotation of the cooling fan. 3 - 22 Q Normally use this po The air is pushed radiator mask. The speed of the temperature of the c cooling efficiency. REV position: Reverse rotation The fan rotates in th The air is sucked int radiator mask. This heat from the radiat Operating with the fa overheating, so use weather (ambient te o the engine room through the makes it possible to use the or to warm the operator's cab. n rotating in reverse may cause this function only during cold mperature below 15°C). the reverse direction at high the coolant temperature.

clean the radiator fins. CLN position: Cleaning The fan rotates in speed, regardless of Use this function to Stop the engine and turn the starti ng switch to the ON position before operating th REMARK If the engine is running, the direc tion of rotation of the fan will not change even when the fan rotat ion selector switch is operated. The fan operation confirmation lamp will flash to inform the operatorthat the direction of rota tion of the fan has not changed. Stop the engine, then start it ag ain. The direction of rotation of the fan will be switched.

When the cooling fan is being operated in reverse or in the cleaning mode, even if the start ing switch is turned to the OFF position, the hydraulic circuit pro tection function will be actuated and the power supply will not b e cut immediately. During this time, the fan operatio n confirmation lamp will flash to inform the operator that the pow er supply is being maintained.