Milton CAT 374D L - Manual (Page 9)

9
Front Linkage
Designed for flexibility and high productivity
Front Linkage
Cat excavator booms and sticks are built for performance
and long service life.
•
Castings and forgings are used at high stress areas such
as boom nose, boom foot, boom cylinder and stick foot.
• All booms and sticks are stress-relieved for optimal life
and durability, while minimizing weight for improved
performance.
• All booms and sticks are ultrasonic inspected.
Bucket Linkage
Two bucket linkages are available for the 374D L.
Both linkages are available with or without a lifting eye
on the power link.
•
The VB2 bucket linkage is for use with the reach sticks
and VB2-family buckets
• The WB2 bucket linkage is for use with the mass sticks
and WB2-family buckets
Boom Construction
374D L booms feature a large cross-section to improve
strength and reduce weight. Baffle plates reinforce the boom
interior for higher rigidity. Booms are designed for strength
and maximum payload.
Stick Construction
Sticks are made of high-tensile strength steel in a box-
section design, making them strong and light. All sticks
are reinforced with a thick baffle plate for added rigidity.
The connection between stick and boom is made of forged
steel, and a thick steel plate is used at the bucket connecting
location for increased strength and rigidity at load-bearing
points. An additional wear plate is added to the working side
of the stick for protection. All mass sticks include additional
wear bars on the working side to protect the structure during
operation. There are four reach sticks and two mass sticks
available to meet your application needs.
Linkage Pins
Bucket cylinder pin and idler to stick pin diameter for the
reach boom have been increased. The pins have thick chrome
plating for high wear resistance and long life.