Komatsu PC290LC-11 Operation & Maintenance Manual page 453

ATTACHMENTS AND OPTIONS
• Is the working mode set to B mode?
For the oil passage route, see "METHOD FOR CHANGE-OVER AND CONNECT HYDRAULIC CIRCUIT
FOR MACHINE READY FOR INSTALLATION OF ATTACHMENT (6-18)".
• Do you replace the hydraulic oil and its filter element at intervals shorter than the standard?
The deterioration of the hydraulic oil when using the breaker is much faster than in the normal operations,
so check the maintenance time with "MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER (4-13)".
When considering whether it is necessary to install an accumulator for the attachment circuit, contact the
attachment manufacturer and then decide.
When handling the breaker, follow the instruction manual from the breaker manufacturer and use the break-
er correctly.
METHOD FOR OPERATING GENERAL ATTACHMENT SUCH AS CRUSHER ETC
1.
Set the working mode to ATT/P or ATT/E mode.
2.
Set both front and rear lock pins to FREE position (c).
3.
Depress the front or rear side of the pedal.
The attachment operates.
METHOD FOR OPERATING WHEN WORK MODE PILOT DISPLAY DOES NOT
SHOW EITHER ATT/P OR ATT/E OF ATTACHMENT MODE
Change the working mode and enter the Attachment Mode.
1.
Press working mode selector switch (1).
The screen changes to the working mode selection
screen.
HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
6-27