Komatsu PC45MR-30403, Operation And Maintenance Manual

Page: 424 / 475

SELECTOR VALVE
The selector valve switches the flow of the hydraulic oil.
Position (a)
When general attachments such as crusher are used
Position (b)
When using the breaker
Width across flats of the square part of spool (1) is 9 mm
{0.354 in} .
ATTACHMENT CONTROL PEDAL
(For the machine equipped with attachment control pedal)
Attachment control pedal is operated when using the attach-
ment.
Depress upper part
Oil flows to the piping on the right side of the arm (hydraulic
tank side).
Depress lower part
Oil flows to the piping on the left side of the arm (operator's
seat side).
ATTACHMENT LOCK COVER
(For the machine equipped with attachment control pedal)
k k
WARNING
When the attachment is not used, set the attachment lock cover to LOCK position to prevent the attach-
ment control pedal from moving.
When it is not locked, if you depress the attachment control pedal by mistake, the attachment may sud-
denly move, and this may lead to serious personal injury or death.
The attachment lock cover locks the attachment control pedal.
When you put the attachment lock cover on the attachment
control pedal, it is LOCK position (L).
ATTACHMENTS AND OPTIONS HANDLE MACHINE READY FOR INSTALLATION OF ATTACHMENT
6-7