21
(1) Nibbler circuit
1.
Select nibbler mode through select switch.
2.
Nibbler display appears on gauge cluster.
3.
The return oil from the nibbler passes through selector valve and option spool and led to tank
line of main control valve.
4.
When selecting nibbler mode through select switch, the breaker pressure sensor has not function
to output.
It is in normal when there is no output from sensor in nibbler mode, and in cases of other than
above, error display is output to gauge cluster.
(2) Breaker circuit
1.
Select breaker mode through select switch.
2.
Breaker display appears on gauge cluster.
3.
The return oil from the breaker passes through selector valve and directly returns into hydraulic oil
tank.
4.
When selecting breaker mode through select switch, the breaker pressure sensor outputs signal.
It is in normal when there is an output from sensor in breaker mode, and in cases of other than
above, error display is output to gauge cluster.
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21. MECHATRO CONTROLLER
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21-25
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