paladin JRB SMART-LOC, Руководство оператора

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OM90A
The diagrams on this page illustrate the function of the coupler’s locking system during lock and unlock
operations. Refer to the Operation Section of this manual for lock and unlock procedure of the coupler.
The coupler shown is in the correct lock position.
The lock wedge is extended over the back attachment
pin and the secondary lock arm is in position behind
the lock wedge. In this position the lock wedge can
not retract far enough to release the pin in the event
of a hydraulic failure.
JRB excavator couplers are powered using hydraulic fluid diverted from the machine
bucket cylinder circuit by an electric solenoid valve. The coupler is locked by default
and the solenoid is energized only during the unlock sequence.
LOCKED:
The JRB Smart-Loc® Coupler places a heavy emphasis on safety with a unique locking mechanism.
A pilot operated check valve assures the hydraulic cylinder is locked in case of hydraulic pressure loss. A
primary wedge locking system which adjusts for wear, keeping a tight connection on the attachment pin.
Furthermore, a secondary lock which consists of a mechanical lock arm that prevents the lock wedge from
accidentally being retracted or retracting in case of loss of cylinder force.
NOTE: This coupler can be operated with the JRB designed high or low pressure hydraulic system.
When the coupler is rotated to the full curl position,
the secondary lock arm contacts the underside of the
machine stick. This rotates the lock arm from its posi-
tion behind the lock wedge. The lock wedge can now
fully retract and disengage the attachment pin.
NOTE: Modifications to the underside of the ma -
chine stick may interfer with the proper operation
of the coupler locking mechanism. DO NOT operate
the coupler if the possibility of interference exists.
Doing so may cause damage to the coupler and
will void warranty.
UNLOCKED:
THE SECONDARY LOCK IS NOT INTENDED TO BE
USED AS THE PRIMARY LOCKING SYSTEM FOR THE
COUPLER.
Lock Arm contacting
underside of machine stick
Lock Arm
rotates allowing
Lock Wedge to
fully retract and
release pin.
Lock Arm positioned
behind Lock Wedge ,
preventing full retraction
Lock Wedge extended
against attachment pin.
OPERATION