Komatsu — 3.3.5 MACHINE CONTROLS

INSTRUMENTS AND CONTROLS MAIN FUNCTIONS OF THE GEARSHIFT CONTROL FWD 1 2 4 5 8 N 14 13 10 15 REV 3 + - 6 7 9 12 11 RWA12420 1 - Reversing gear lever for the forward (FWD), reverse (REV) and NEUTRAL (N) selection. 2 - (UP) push button for the upshifting. 3 - (DOWN) push button for the downshifting. 4 - Red led (N): when this led lights up, it indicates that the device preventing the accidental engagement of the FWD or REV is connected or that the reversing gear lever is not in NEUTRAL position during the start. 5 - Green led (FWD): when this led lights up, it indicates that the forward gear has been selected . 6 - Green led (REV):

when this led lights up, it indicates that the reverse gear has been selected. 7 - (4WD) push button for the engagement and disengagement of the four-wheel drive in 1 st or 2 nd gear. 8 - Green led (4WD): when this led is continuosly on, it indicates that the (4WD) push button is operating and the four-wheel drive is engaged, when it is off, it indicates that the (4WD) push button is not operating and the four-wheel drive is disengaged and when it flashes, it indicates that the (4WD) push button is operating and the four-wheel drive has been temporarily disengaged in 3 rd or 4 th gear. 9 - Anti-theft safety code push button for the connection or disconnection of this function.

The connection is achieved by pressing the push button for more than 3 seconds with the engine running. 10 - Green anti-theft led: when this led lights up, it indicates that the anti-theft function is in operation. When the engine is started again, it is necessary to enter the secret code to be able to move the machine. 11 - Automatic logic connection push button (AUT): the connection of the automatic logic (AUT) is possible only with the engine running and the device preventing the accidental engagement in operation (red led N on). The connection (AUT) is indicated by the coming on of two red points on the display (15). 12 - (DIM) push button:

this button confirms and acquires the anti-theft code, regulates the luminous intensity of the display and of the leds. 13 - Orange configuration led: it flashes when state changes are requested in a non-optimal field. 14 - Red alarm led: it is continuously on in case of serious faults associated with a figure code on the display; it flashes in case of slight faults associated with a figure code on the dispay. 15 - Red luminous display:

it indicates the automatic logic state, the engaged gear, the number relevant to the anti-theft secret code, the state (88) after the energizing or the entry of a wrong anti-theft code, the diagnos- tic references in case of anomaly in the transmission or in the electronic control system. 75