09-254B 5 - 2 rev 8/02
To Remove Belt:
1. Serial Numbers (MD448=1001-1493,
MD460=1001-4727, MD472=1001-1969)
Remove top shield and the bolts which fasten
the hitch arms to the deck brackets. No further
disassembly is necessary.
Serial Numbers (MD448=1494 & Up,
MD460=4728 & Up, MD472=1970 & Up)
Remove the six ¼ x ¾ bolts from the flip-up
braces and remove the pivot stop pin and the
idler spring. Remove the braces.
2. With the idler spring released, move the idler
toward the drive shaft.
3. Slip belt off the outer spindle pulleys.
4. Slip belt off the front center idler and spindle.
5. Remove belt.
To Install Belt:
1. Form loop for drive pulley and idler pulley as
shown. (Photos2&3)
2. Slip loop over drive pulley on left hitch arm.
(Photos2&3)
3. Form a loop around the center spindle pulley
and fixed idler pulley. (Photos2&3)
4. Position belt on the outer spindle pulleys.
(Photos2&3)
5. Serial Numbers (MD448=1001-1493, MD460=
1001-4727, MD472=1001-1969)
Re-install hitch arms and bushings in place .
Serial Numbers (MD448=1494 & Up,
MD460=4728 & Up, MD472=1970 & Up)
Re-install hitch arms and pivot braces. Torque
1/2" attaching bolts to 85 foot pounds. (Photos 2
&3)
6. Hook idler spring in place.
Serial Numbers (MD448=1001-1493, MD460=
1001-4727, MD472=1001-1969)
Choose chain link that stretches spring to an
overall length of 8-9 inches.
Serial Numbers (MD448=1494 & Up,
MD460=4728 & Up, MD472=1970 & Up
Choose chain link which stretches spring
approximately one inch on MD460 or 1-1/2" on
MD448 & MD472.
7. Re-install top shield.
SERVICE section 5
CHANGING MAIN DRIVE BELT
Photo 2
Photo 3