Komatsu PC80MR-5E0, Operation & Maintenance Manual

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If the operation mode selection switch is not set on the ATT/P
or ATT/E mode, this switch cannot be activated.
Flow rate can be adjusted according to the operating amount of
2nd line attachment proportional switch.
Activation of the right part of the switch
The oil flows towards the hose of the 2nd line on the right side
of the boom (hydraulic tank side).
Activation of the left part of the switch
The oil flows towards the hose of the 2nd line on the left side of
the boom (operator seat side).
METHOD FOR CONNECTING HYDRAULIC CIRCUIT (2nd LINE)
k k
WARNING
• Wear the protective equipment such as protective eyeglasses and gloves.
• When connecting the pipes, always be careful to prevent any impurities from getting in.
• The change of the equipment must be carried out by two operators, who must decide together the
words and signals to be used during work.
METHOD FOR CONNECTING HYDRAULIC CIRCUIT
Connect the hydraulic circuit according the following procedures when installing the attachment.
1.
Remove the bucket.
For the removal procedure of the bucket, see OPERATION “METHOD FOR REPLACING BUCKET”.
2.
Lower the attachment to the ground and stop the engine.
3.
Turn the starting switch to ON position (B).
ATTACHMENTS AND OPTIONS
HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
(2nd LINE)
6-27
WENAM00241