. OPERATION OPERATION OPERATION OPERATION ON travel 3 - 90 4. Set retar der contro l lever (4) to the R ELEASE position. 5. Insert th e key in t he starting switch (5) and turn it to th position. After doin g this, check that t here is no problem machine monitor ( no lighting up of monitor lamps for speed, e ngine speed, oil temperatu fuel leve l, cautions , positions). Before starti ng the engine, turn the starti ng switch to the ON position and car ry out the 3-seco nd system check . The displays for the system check are as foll ows. system check, then normal operation starts. r 2 seconds and then goes out. ds and stops. nds and then go out for one second.
for 2 seconds and then goes out for one second. T he mete rs go through the 3-second system check, then norma l operati T he centr al warning lamp lights up fo r 2 seconds and the n goes T he alarm buzzer s ounds for 2 secon T he moni tor lamps light up for 2 seco nds and then go ou t for on e secon T he gear shift indicator displays "88" for 2 seconds and t hen go es out fo If th e gear s hift lever is not at the N posi tion when the starti ng switc h is turn ed ON, after com pletion of the sy stem check, the g ear shift l ever position pilot lamp flashes, the central warning lamp lights up, and the alarm b uzzer sounds inter mittently.
I f this happens, re turn the gear shift le ver to t he N po sition. The centra l warning lamp will go out and the buzzer will "KOMATSU SYSTEM CHECK" is displa yed on the charact er displa y for 3 If no display appears, there is probably a failure or disconnection in the wir ing, so ask your Komatsu distribu tor to carr y out rep airs.