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Structure, Engineered for maximum production and service life – Milton CAT D9T User Manual

Page 9

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Structure

Engineered for maximum production and service life

Mainframe Strength

The D9T mainframe is built to absorb high impact shock loads and twisting forces.

Frame Rails

Full box section, designed to keep components rigidly aligned.

Heavy Steel Castings

Adds strength to the main case, equalizer bar saddle, front cross member and tag-link trunnion.

Top and Bottom Rails

Continuous rolled sections, with no machining or welding, to provide superior mainframe durability.

Pivot Shaft

The D9T pivot shaft runs through the mainframe and connects to the roller frames, allowing
independent oscillation. The full-length pivot shaft distributes impact loads throughout the case,
reducing the bending stress on the case.

Tag-Link

The Tag-Link brings the blade closer to the machine for more precise dozing and load control.
The Tag-Link design provides solid lateral stability and better cylinder positions for constant break out
force, independent of blade height.

Main Case

Elevates the final drives well above the ground level work area to protect them from impact loads,
abrasion and contamination.

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