MACHINE READY FOR ATTACHMENT ATTACHMENTS AND OPTIONS
6-14
ATTACHMENT OPERATIONS 6
WARNING
q Do not rest the foot on the pedal and depress it, when the auto deceleration switch is in ON position.
The engine speed rises all of sudden and the attachment will move suddenly and cause serious dam-
age or injury.
q Do not put your foot on the pedal except when operating the pedal. If rest your foot on the pedal dur-
ing operations, and it is depressed by accident, the attachment may move suddenly and cause serious
damage or injury.
Operate the attachment as follows.
When Using Breaker 6
NOTICE
Always use B mode for breaker operations. If any other mode (A, E, L) is used, the hydraulic equipment
may be damaged.
Set the lock pin to the Free position and depress the front of
the right pedal to operate the breaker.
Set the working mode to B mode.
Precautions when using
q Check that the stopper valve is in the FREE position.
q Check that the selector valve is in the position for using the breaker.
q Check that stopper bar (1) for the selector valve spool is
installed at the breaker position.
For details of the oil flow, see “HYDRAULIC CIRCUIT (6-
11)“.
q For details of other precautions when handling the breaker, see the instruction manual provided by the breaker
manufacturer.
q Compared with normal operations, the deterioration of the hydraulic oil is much more rapid when carrying out
breaker operations, so change the oil and replace the element at shorter intervals than normal.
For details, see “MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER (4-18)“.
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