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MINI HYDRAULIC EXCAVATORS
Dual Lock Pin Grabber Couplers
Dual Lock Pin Grabber Couplers allow work tools
to be changed quickly — improving overall production
and increasing machine versatility. A coupler is pinned
on in place of the bucket with standard pins.
The
Dual Lock Coupler
is available in a standard pin
grabber design for use on machines sized from 301.4C-
308E2 CR SB. There are two types of Dual Lock Pin
Grabber Couplers – Mechanical and Hydraulic (fully
operable from the cab).
The
Dual Lock Tilt Coupler
allows for 180° of rota-
tion while providing a reliable high torque actuator
with few moving parts. The 180° rotation reduces the
need for additional equipment on the job site, while
increasing productivity and profitability.
Visible Secondary Lock
Cat Dual Lock Pin Grabber Couplers maintain a
tight fit throughout the life of the coupler with an
innovative wedge design. Primary and secondary
locking systems are totally independent. The primary
locking system consists of a locking wedge mechanism.
An anti-rotation locking system into the actuator for
the primary locking wedge is automatic and ensures
the primary lock remains fully engaged even when used
with high energy vibratory tools.
The secondary locking system incorporates a spring-
loaded rotating lock that automatically locks on the front
pin on the work tool during coupling. Spring applied,
hydraulically released on the hydraulic coupler, and
spring applied, mechanically released on the mechan-
ical coupler.
Dual Lock Couplers were designed with the operator
in mind allowing the secondary lock to be clearly visible
from the cab.
Productivity
As with any quick coupler, the Dual Lock quickly
changes between attachments, allowing one machine to
be used for multiple tasks on the job site. The ability to
see when the coupler is open or closed makes it intui-
tive to use, saving time when changing tools.
Dual Lock Couplers can engage and disengage any
compatible Cat bucket or work tool attachment equipped
with pins. The pin grabber design allows for buckets to
be turned around in “front shovel” mode on both the
Dual Lock and the Dual Lock Tilt Coupler.
The ease of operation and quickness of tool change-
over maximizes productivity on the job site. The coupler
is easy to operate, regardless of user skill level, and it’s
easier to train new operators to use. The ability to see
when the coupler is open and closed saves time when-
ever a tool is changed. The elimination of the locking
bar allows for operation regardless of boom, stick and
machine position.
Dual Lock Pin Grabber Couplers meet Australian
Standard AS 4772 and European EN-474-1.
Edition 47 7-225
Hydraulic
Excavators
Dual Lock™ Pin Grabber Couplers