Komatsu PC138US-11 Operation & Maintenance Manual page 427

Hydraulic excavator
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ATTACHMENTS AND OPTIONS
1.
Press working mode selector switch (1).
The screen changes to Working Mode screen.
2.
Press working mode selector switch (1) or press switches
F3 or F4 to select Breaker Mode B.
3.
With breaker mode B highlighted in yellow, do one of the following to enter the selection.
To keep working mode selector switch (1) pressed
To press switch F6.
To leave as it is for 5 seconds.
If you enter the selection of the Breaker Mode, the confir-
mation message is displayed.
4.
Press switch F6 to enter the Breaker Mode.
CHECK POINTS WHEN USING BREAKER
Is the stop valve in FREE position?
Is the working mode set to B mode?
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 (4-12)".
HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
WENAM00111
6-27

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