Gravely Promaster 34Z Owner's/Operator's Manual page 19

Remove PTO Belt (992056, 314)
CAUTION: Use care when releasing idler spring
tension. Keep body parts well away from idlers when
performing this operation.
1. Slowly release the tension on the PTO belt idler until all the
tension is removed from the springs.
2. Remove PTO belt from deck.
3. Arrange new PTO belt on deck sheaves, and then slowly
tension the idler springs.
4. Replace belt covers and return foot board to closed
position.
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3
5
4
1. Mower Deck Sheaves
2. Springs
3. PTO Belt Idler
1
3
4. Mower Clutch Sheave
5. PTO Belt
Figure 16
Replacing Mower Belts (992065)
NOTE: Long mower belt must be removed to remove short
mower belt.
CAUTION:
tension. Keep body parts well away from idlers
when performing this operation.
1. Slowly release the tension on the long mower belt idler
until all the tension is removed from the springs.
2. Remove long mower belt from left blade spindle and
remove from deck.
3. Slowly release the tension on the short belt idler until
all the tension is removed from the springs.
4. 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 16).
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5. 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.
6. Replace belt covers and return foot board to closed
position.
GB-19
Use care when releasing idler spring
2
5
5
1
4
1. Long Mower Belt
2. Short Mower Belt
3. Springs
4. Short Mower Belt Idler
5. Long Mower Belt Idler
6. Mower Clutch Sheave
7. Center Sheave
Figure 17
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3