Komatsu PC210-10 DEMOLITION BASE SPEC., Operation & Maintenance Manual

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ATTACHMENTS AND OPTIONS HANDLING QUICK COUPLER
6–5
1. If the bucket or attachment has any hydraulic connections
to the machine these must be disconnected before pro-
ceeding.
2. Position the attachment on the ground safely where it is to
be left. Take care that it will not roll or side after release.
3. Operation switch (1).
REMARK
The switch has a safety lock mechanism to prevent accidental
operation. Slide the lock towards you then rock the switch. The
lamp on the switch will come on and a warning buzzer will
sound. (NB Operation will only take place if button (2) is also
pressed).
(A): when depressed at this point quick coupler deactivated
[NB – LOCK bucket/attachment].
(B): When depressed at this point quick coupler is ready to
be activated [NB – RELEASE bucket/attachment].
4. With switch (1) in position "B" press and hold button (2) on
the left hand lever to activate quick coupler.
5. Depending on the design of the quick coupler it may be
necessary to operate one of the hydraulic functions of the
machine (bucket, boom, arm, or swing) to raise the pres-
sure in the hydraulic system. If using the swing function
activate the Swing Lock first ("Lamp Switch (3-78)").
6. The quick coupler will now release the attachment/bucket.
To pick up a new bucket or attachment
k
WARNING
q
European safety standards require that is possible to check the locked position of the quick coupler
from the operator's position. Failure to check could cause the death of exposed persons. Check care-
fully that the locking of the quick coupler is complete and secure. Follow the manufacturer's instruc-
tions carefully, including the installation of any safety device, if required.
q
Check daily that the hoses and fittings in the quick coupler piping system are in good condition. Pay
particular attention to the hoses and fittings at the arm end as these can be damaged easily. In case of
damage or leakage of oil stop work. Loss of oil could lead to the bucket or attachment falling and kill-
ing an exposed person. The damage or leakage must be repaired before continuing work.
q
This machine has a system installed to give a warning if there is a failure to maintain pressure in the
quick coupler system. If the buzzer sounds in the cab make sure that the cause is clarified before con-
tinuing work. In particular check for leaks in the system. If in doubt call your Komatsu distributor.