. OPERATION MACHINE OPERATIONS AND CONTROLS OPERATION MACHINE OPERATIONS AND CONTROLS 3 - 53 3. I nsert position, then carry out the following checks 1) The buzzer soun ds for approx. 1 second , the n the m onitors and gauges ligh t up for approx. P reheating m C harge moni E ngine oil pre ssure monitor ( E ngine coola nt temperature c aution lamp (6 F uel level ca ution lamp (7) T ravel speed boost monitor ( If a monitor or g auge does not li ght up o r th e buzze r does not s ound, there is probabl y a blo wn fus e or disconnection in th distribu for repa After approx. 3 seconds, o nly th light ed up.
The other monitors g C harge moni E ngine oil pre ssure monitor ( 2) Pres s lamp swit ch (9) and che working light s up. If it do es not ligh t up, there is probably a blown bulb or disconne ction, so c ontac t your K omatsu distributor for r epairs. 3) Pres s horn switc h (10) to c onfirm that th e horn will sound.