Komatsu PC210-10 DEMOLITION BASE SPEC., Руководство по эксплуатации и техническому обслуживанию, Страница: 402 / 458

HANDLING QUICK COUPLER ATTACHMENTS AND OPTIONS
6–4
HANDLING QUICK COUPLER
k
WARNING
Quick coupler operation can be dangerous. There is a risk of death to exposed persons. Follow these
instructions strictly.
1. Use only quick coupler which comply with European standard EN474. In particular, it must be possible to con-
firm from the operator's position that the locking of the attachment or bucket has been completed.
2. Use only quick coupler which include a pilot operated check valve in the locking cylinder. This is to ensure that
there is no risk of the bucket or attachment coming loose in the case of loss of hydraulic pressure. If in doubt
consult the manufacturer of the coupler.
3. Read the instruction manual of the quick coupler carefully and follow the recommendations. If in doubt about
the installation or operation consult your Komatsu distributor.
4. Pressure regulation valve (4) and (5) allow the attachment pressure and the release pressure for the quick
coupler to be limited according to the quick coupler manufacturer's recommendation respectively.
Maximum circuit pressure 34.3 MPa (350 kgf/cm
2
).
5. Ensure that the quick coupler is installed by a suitably qualified technician. If in doubt contact your Komatsu
distributor.
NAME OF EACH PART
HOW TO OPERATE
To release a bucket or attachment
k
WARNING
Pressure in the system can cause injury. Follow all instructions in ATTACHMENT REMOVAL AND INSTAL-
LATION.
(1) Switch (See following page) (4) Adjustable pressure regulating valve (Attach)
(2) Piping (quick coupler lock direction) (5) Adjustable pressure regulating valve (Attach)
(3) Piping (quick coupler release direction)
4
5
3
2