TM 5-3610-253-14
Main drive clutch. Controlled by the hydraulic system. Couples the main
drive gear to drive motor and drives the knife. Brakes stop the main drive gear
when hydraulic pressure is released.
b. Main drive gear.
Converts high rpm from the clutch to low rpm at the
eccentric.
Converts rotary motion from the main drive gear into linear
c. Eccentric.
motion.
d. Connecting rod. Linkage between eccentric and knife carrier. Pulls the
knife downward at a 45 angle to perform cut. It contains two shear bolts that are
designed to break if the knife carrier cannot complete its cut due to jamming.
e.
Knife carrier. A cast-iron structure which supports the knife. It rides
in two machined grooves which give it a shearing motion when pulled down by the
connecting rod.
f. Knife. A beveled-edge, tempered-steel plate that is mounted to the knife
carrier and performs the actual cut.
5-3.2 Clamp Assembly. Hydraulically activated. Clamps material tightly to
force air out and hold in-position for cutting. It is comprised of:
a. Clamp. Presses and holds the material. Located behind the knife. Moves up
and down. Returns to starting position by means of a spring fitted to the right
angular linkage. Clamp rides in adjustable side guides.
b. Hydraulic clamp cylinder. Pushes the clamp downward via system of angular
linkages and pulling bars. Protrudes from right side of machine and presses right
angular linkage (paragraph 5-3.5e).
5-7
