Milton CAT 308D CR SB - Manual (Page 5)

5
Work Tools
Cat work tools are matched to meet your application needs.
A wide range of tools have been developed and integrated into
the machine design to maximize machine performance and
deliver excellent value through high productivity and long life.
• Heavy Duty Buckets • Shears
• Heavy Duty Rock Buckets • Compactors
• Ditch Cleaning Buckets • Thumbs
• Hydraulic Hammers • Quick Couplers
• Augers
Couplers
To maximize performance, Caterpillar Pin-Grabber Quick
Couplers are compatible with all standard work tools, enabling
the operator to simply release one work tool and pick up another,
maximizing productivity. The couplers are available in hydraulic
and manual versions.
Auxiliary Hydraulics
The combined function high-pressure auxiliary lines and quick
connectors are fi tted as standard. This auxiliary system includes
a diverter valve which provides optimum performance when using
a one-way fl ow (hammer) or two-way fl ow (auger and thumb)
work tool. This feature allows the machine to adapt to a wide
variety of applications without re-confi guring the auxiliary lines.
Versatility is further enhanced with optional hydraulic lines enabling
the use of a hydraulic quick coupler. A secondary auxiliary
supply circuit for work tools utilizing a rotating or other medium-
pressure circuit is also available as an optional attachment.
The auxiliary fl ow can be changed through the in-cab
LCD monitor from 64 L/min (16.9 gal/min) to 128 L/min
(33.8 gal/min). This allows the machine and work tool to
provide optimum performance and better match the customer’s
application requirements.
Thumbs
Caterpillar offers three varieties of thumbs: Stiff Link, Hydraulic
and Progressive Link. The stiff link thumb incorporates the
use of a fi xed link between the thumb and the stick, requiring
bucket curl to secure the load. The hydraulic thumb replaces
the stiff link with a cylinder that enables movement by both the
thumb link and the bucket to grab an object. A progressive link
thumb works much like a hydraulic thumb with more thumb
rotation by incorporating an additional link. This additional
rotation provides a better working range when securing material.
The three varieties come with two lengths, one compatible with
a pin-on bucket and one compatible with a pin-grabber coupler.