GB - 29
Replacing Mower Belts
NOTE: Long PTO mower belt must be
removed to remove short mower belt.
1. Slowly release the tension on the long
mower belt idler until all the tension is
removed from the springs.
2. Remove the belt guide bolt from the idler
arm.
3. Remove long mower belt from left blade
spindle and remove from deck.
4. Slowly release the tension on the short
belt idler until all the tension is removed
from the springs.
5. Remove short mower belt from right
blade spindle and from deck. Idler pivot
bolt must be loosened slightly to gain
clearance to remove belt from under
idler pulley (Figure 20).
6. Arrange new mower belt(s) on deck
(short belt first). Retighten short mower
belt idler pivot bolt. Install belts on
sheaves. Put belts onto center sheave
last.
NOTE: The PTO idler spring length range is
12.25 to 12.50 in. (31.0 to 31.8 cm)
measured at a 3.50 in. (8.9 cm) cutting
height. Adjust the idler spring length as
needed, see Figure 21.
7. Replace the belt guide bolt on the idler
arm.
8. Replace belt covers and return foot
board to closed position.
CAUTION: Use care when
releasing idler spring tension. Keep
body parts well away from idlers
when performing this operation.
Figure 20
1. PTO Mower Belt
2. Mower Drive Belt
3. Springs
4. Mower Drive Belt Idler
5. PTO Mower Belt Idler
6. Mower Clutch Sheave
7. Center Sheave
8. Belt Guide Bolt
1
2
4
7
6
5
3
8
OF4345
Figure 21
The PTO idler spring length range is
12.25 to 12.50 in. (31.0 to 31.8 cm)
measured at a 3.50 in. (8.9 cm) cutting
height. Adjust as necessary.
Measure PTO
idler spring
length here.
PTO Idler Spring Length
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