TM 5-3810-289-34
(a)
Remove capscrew locking bell crank
4-14. Main Clutches
fulcrum pin.
a. Removal and Disassembly. See figure 4-11.
(b) Remove bell crank fulcrum pin with lock
(1) Remove clutch band.
plate attached and remove the subassembly.
(a) Loosen lock nuts and turn down two
(c) Complete disassembly if necessary by
band guide screws in the guide, enough to free band.
removing cotter pin and spring bolt. Live end links and
(b) Remove cotter pin, take out U shaped
toggle lever may be separated from bell crank by driving
retainer pin, and remove band live end pin.
out pin bushing.
(c) Remove band dead end (anchor) pin by
Note. This toe lever spring is t at the factory for
removing capscrew in lock plate.
correct adjustment. Do not disturb by disassembly
(d) Swing the two live end links away from
unless necessary.
live end of band and loosen lock nut on adjusting bolt to
(8) There is now left on the shaft: the new
give maximum clearance.
clutch housing with bearings, clutch driver and key, and
(e) Rotate band bout 2 inches so that live
shifter sliding sleeve. On the swing-and-propel clutches
end approaches dead end anchor position and slide it
these parts can be removed by simply sliding off the
out of housing.
shaft (wedge open split hub of driver for easy removal).
(2) Remove end nut from adjusting bolt and
On the remaining three drum clutches, the above parts
remove bolt.
can be removed only by disassembling the front and rear
(3) Take out the two cotter pins in toggle
shafts to the point where these parts can be removed.
yoke and pull out the two bushings together with their
headed pins.
b. Reassembly.
(4) Pull the toggle yoke off the ball stud and
(1) Insert bearings in clutch housing, pack
remove it.
half full with GAA grease.
(5) Take out the two bolts and remove the
(2) Assemble clutch driver bolt, toggle links
band guide.
and bearings to clutch driver. Do not tighten bolt but
(6) Two toggle links and their bushings are
wedge split hub open.
readily removed by taking off nuts on ends of long clutch
(3) Insert clutch driver key in shaft and slide
driver bolt (nut on one end locked with cotter pin). The
on driver.
bolt itself cannot be removed unless clutch driver is
Note. Driver key must not project beyond drive
shifted on shaft enough to allow bolt to clear clutch
hub face or it will interfere with necessary travel of shifter
housing (loosen clutch driver bolt and wedge hub open).
sleeve.
(7) Remove sub-assembly of bell crank,
toggle lever, toggle lever spring, and live end links:
4-25
