Not for
Reproduction
37
53
12. Tighten the jam nut.
13. Install the mower deck guards.
Mower Deck Drive Belt Replacement -
72" Mower Decks
NOTICE
To avoid damaging belt,
do not pry over
pulleys.
1. Park the mower on a smooth, level surface such as a
concrete floor. Disengage the PTO, engage the parking
brake, turn the ignition switch to OFF, and remove the
ignition key.
2. Lower the mower deck to its lowest cutting position and
remove the mower decks guards to gain access to the
mower deck drive belt (A, Figure 54).
54
WARNING
Use extreme caution when rotating the idler arm with the
breaker bar, due to the increased tension in the spring
as the idler arm is being rotated. Injury may result if the
breaker bar is prematurely released while the spring is
under tension.
3. Using the 1/2” breaker bar, place the square end in the
opening in the idler arm (B) and rotate the idler arm
clockwise
, which will relieve the tension on the belt
exerted from the idler arm.
4. Slide the drive belt over the edge of the trim side spindle
pulley (C). Carefully release the tension on the breaker
bar.
5. Remove the old belt and replace with a new one.
6. Install the belt onto the PTO clutch pulley (D) and the
center and discharge side spindle pulleys (C). Install the
belt on the stationary idler pulleys (E) and the adjustable
idler pulley (F).
7. Carefully rotate the breaker bar
clockwise
and install the
belt on the trim side spindle pulley, making sure that the
V-side of the belt runs in the grooves of the pulley.
8. Carefully release the tension on the breaker bar.
9. Set the mower deck in the 3-1/2” (8,89 cm) cutting
position.
10. Measure the coil length (A, Figure 55) of the mower belt
tensioning spring (B). The measurement should equal
10-1/2" (26,7 cm). If not, loosen the jam nut (C) on the
eyebolt (D) and turn the adjustment nut (E) until the
measurement is achieved.
55
11. Re-tighten the jam nut.
12. Re-install the mower deck guards.
Transaxle Drive Belt Replacement
Figure 56 depicts the transmission drive belt as seen from
underneath the unit and looking up at it. The arrow (A, Figure
56) indicates the front of the unit.