CAT 345C L - Manual (Page 11)

11
Booms, Sticks and Linkage
Designed for flexibility, high productivity, and efficiency in a variety of applications.
Front Linkage Attachments.
Select the right combination of front
linkage with your Cat dealer to ensure
high productivity from the very start
of your job. Two types of booms and
four sticks are available, offering a
range of configurations suitable for a
wide variety of applications and offer a
large combination of reach and digging
forces for optimum versatility. All
booms and sticks undergo a stress
relieving process for greater durability.
Boom Construction. The booms have
large cross-sections and internal baffle
plates to provide long life durability.
Castings and forgings are used in critical
high-load areas such as the boom nose,
boom foot, and boom cylinder connection.
Mass Excavation Boom. The 6.55 m
mass boom is designed to provide
maximum digging forces, bucket
capacity and truck loading productivity.
The mass boom comes with two stick
options for further job site versatility.
Reach Boom. The 6.9 m Reach boom is
designed to balance reach, digging force
bucket capacity, offering a wide range
of applications as digging, loading and
trenching.
Stick Construction. Sticks are made of
high-tensile strength steel using a large
box section design with interior baffle plates
and an additional bottom guard to protect
against damage. The new Quarry Package
attachment provides reinforcement bars on
the stick.
Mass Sticks. Two mass excavation sticks
are available for higher digging forces and
increased bucket capacity. Mass sticks use
UB-family bucket linkage and buckets.
M2.5UB. The 2500 mm stick provides
excellent digging envelope with large
bucket capacity and high force levels.
M3.0UB.
The 3000 mm stick is intended
for mass excavation applications with
very large buckets with high force
requirements.
Reach Sticks. Two lengths of reach sticks
are available to suite a variety of applications.
Reach sticks use the TB-family bucket
linkage and buckets.
R2.9TB. The 2900 mm stick has a good
digging envelope and handles large
bucket sizes.
R3.4TB.
The 3350 mm stick offers the
most versatility and is suited to all types
of applications and bucket capacities.
Bucket Linkage. Two bucket
linkages are available, with or
without a lifting eye on the power
link.
The UB bucket linkage is for
use with the mass sticks and
UB-family buckets.
The TB bucket linkage is for
use with the reach sticks and
TB-family buckets.
Power Link. The new power link
improves durability, increases
machine-lifting capability in key
lifting positions, and is easier to
use compared to the previous lift
bar design. The power link can be
equipped with or without the lifting
eye.
Linkage Pins. All pins used in front
linkages have thick chrome plating,
giving them high wear and corrosion
resistance. The large diameter pins
smoothly distribute the shear and
bending loads to help ensure long
pin, boom and stick life.