12. OPERATION 12.10 HANDLING WORKING MODE WORKING MODE The mode selector switch can be used to switch the mode to match the operating conditions and purpose, thereby enabling work to be carried out efficiently. Make effective use of each mode as follows. When the starting switch is turned ON, the working mode is set to the most commonly used general operation mode, so normal operations can be carried out without setting the mode. Use the working mode switch to set the mode to the most efficient mode to match the type of work. H/O G/O F/O L/O B/O H M AD157770 NOTICE Do not use the heavy-duty operation mode for breaker opera- tions.
If breaker operations are carried out in the heavy-duty opera- tion mode, there is danger that the hydraulic equipment may be damaged or broken. 2-70 Working mode Applicable operation Power max. Swift slow-down Power Speed Heavy-duty operation operation mode Large volume digging and loading in a short time 5% up 30% down General operation mode Normal digging and loading operations 10% up 20% down Finishing operation mode Leveling operations, hauling operations – – Lifting operation mode Aligning position – – Breaker mode Breaker operations – –