31 Working Light Switch If the key in “RUN” position, the lights can be switched on by pressing the switch. TWO PATTERN SELECTION SYSTEM (TPSS) 3 CAUTION To avoid personal injury: Study control lever pattern A and pattern B. Then choose the one which is most familiar Position the pattern selector lever in either the left side position of the machine (pattern A) or the right side position (pattern B). Familiarize yourself with the pattern selected by operating slowly. (1) Working light switch Night operation 3 CAUTION To avoid personal injury: Visibility is reduced in darkness, so that the working light alone is not enough.
Prepare additional lighting, observe safety rules as well as special regulations for night work. Pattern Change Position the pattern selector lever to the desired position. Travel Buzzer (OPTION) When you handle the drive levers, the buzzer sounds at the same time or before the excavator starts to run. (1) Pattern selector lever (A) Pattern A (Two Pattern Selection (B) Pattern B System: TPSS)