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ATTACHMENTS AND OPTIONS
HYDRAULIC CIRCUIT
Hydraulic Circuit Connection
When Equipped with Quick Coupler
North America specified
NOTICE
The pressure for the hydraulic equipment for the attachments used on this machine is set at 17.2 MPa (175 Kgf/cm
pressure resistance of the attachment Installed.
When connecting the attachment, connect the hydraulic circuit as follows.
1. Lock the attachment control pedal with the pedal lock.
2. Remove the cap of the quick coupler.
Be careful not to damage or lose the parts that are removed.
3. Connect the piping (quick coupler) supplied by the attachment manufacturer.
The following products are used for the quick coupler.
Arm left side (hole end): STUCCHI (F FIRG12A BSP)
Arm right side (shaft end): STUCCHI (APM15 3/4 BSP)
The sizes of the quick coupler mount threads on the elbow installed to the block are as follows.
Arm left side (hole end): 1/2" G
Arm right side (shaft end): 3/4" G
REMARK
If the quick coupler size does not match, please contact your Komatsu distributor.
NOTICE
When connecting the piping, operate the bucket fully to the dump position
and be careful not to interfere with link (a).
MACHINE READY FOR ATTACHMENT
2
), so check the
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