Service Manual

MOWER DECKS
7 - 12 Mid-Size Walk Behind Service Manual
10. Check the belt guide under the engine frame for
proper adjustment (Figure 172). The distance
between the belt guide and mower belt should be
1-3/8” (35mm). Adjust as necessary. The
disengaged belt should not drag or fall off pulley
when guides are properly adjusted.
Figure 172
m-4726-2
Mower Deck Drive Belt Adjustment
(Fixed Deck Models)
1. Stop the engine and remove the spark plug
wire(s).
2. Remove the deck cover.
3. Engage the PTO.
4. Check the belt guide adjustment as described
above.
5. Check the belt tension midway between the front
and left spindle pulleys. It should require
approximately 10 lbs. force to deflect the belt 1/2”
(13mm).
Figure 173
0617-08
6. To adjust the belt tension, loosen the locknut on
the turnbuckle under the engagement pulley
(Figure 174). Rotate the turnbuckle to tighten or
loosen the belt.
Caution: There must be a minimum of .31 inch (8mm)
thread engagement in the turnbuckle.
Figure 174
0617-09
(1) Idler in slot
(2) Belt guide
(3) 1-3/8” (35mm)
(4) Mower belt