Komatsu — 3.2.2 Switches

Operation 3.2 Explanation of components 1. Starting switch OFF This switch (1) is used to start or stop the engine. ON OFF position In this position, it is possible to insert or remove the starting switch key. All the electric system switches are off, and the engine will stop. ON position In this position, electric current flows to the charging circuit, lamp circuit, and accessory circuit. Keep the starting switch key at the ON position while the engine is running. START GK032119 Start position This is the position to start the engine. Hold the key at this posi- tion while cranking. Release the key immediately after the engine has been started.

The key will return to the ON position when released. 2. Speed range selector switch b c Use this switch (2) to switch the speed range. a d Use 1st and 2nd for operations, and 3rd and 4th for travel. Position (a): 1st Position (b): 2nd Position (c): 3rd Position (d): 4th GK032120 REMARK When traveling at high speed in 3rd or 4th (travel speed: 10 km/h (6.2 MPH) or more), even if the transmission speed is shifted to 1st or 2nd, the motor overrun prevention system will prevent the transmission from shifting to 1st or 2nd. In this case, the central warning lamp lights up and the alarm buzzer sounds.

At the same time, “E00“ and “Overrun pre- vention“ are displayed on the character display in turn for 3 seconds each. The following methods can be used to cancel the alarm buzzer. Reduce speed so that the travel speed is 9 km/h (5.6 MPH) or less. If the actual speed range is 1st or 2nd, the alarm buzzer is canceled. Return the speed selector switch to 3rd or 4th. 3. Variable shift control switch When the speed range is in 1st, it is possible to use this dial (3) to set the maximum speed as desired. Turn the dial to the right to increase the setting; turn it to the left to decrease the setting. The conditions for use may differ according to the condition of the road surface.

GK032121 WA150-5H – VEAM934100 3-31 Installed tire Max. speed [km/h (MPH)] Standard tire (17.5 R25 XHA L3) 5.0 - 13.6 (3.1 - 8.5)