GB - 23
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.
Replacing the Hydro Pump Belt
1. Properly stop and park unit (refer to Operation
Section).
2. Remove the long mower belt from the mower clutch
sheave. See
Replacing Mower Belts
on page 22.
3. Remove clutch anchor.
4. Slowly release the tension on the hydro pump belt
idler until all the tension is removed from the
springs.
5. Remove old hydro pump belt from right hand
hydrostat sheave first (Figure 17).
6. Install new hydro pump belt by positioning belt on
sheaves. Put belt onto right hand hydrostat sheave
last.
7. Replace clutch anchor.
8. Replace long mower belt on mower clutch sheave.
See
Replacing Mower Belts
on page 22.
MOWER DECKS
Adjusting Antiscalp Rollers
The antiscalp rollers are set at the factory for typical
mowing height, but can be adjusted for high or low cutting
conditions (Figure 18).
Rollers are intended to prevent lawn scalping, not to
control cutting height.
For a very high cutting height, set the rollers in their
lowest position on the bracket.
For a very low cutting height, set the rollers in their
highest position on the bracket.
All rollers should be set at the same height.
Removing the Mower Deck
1. Remove PTO (long) mower belt. See
Replacing
Mower Belts
on page 22.
2. Remove link chains from mower lift arms. Note hole
location on mower lift arms for replacement.
3. Remove mower mounting arms from frame.
4. Slide mower deck out from under unit.
CAUTION:
Use care when releasing idler spring
tension. Keep body parts well away from idlers
when performing this operation.
Figure 16
1. Long Mower Belt
2. Springs
3. Center Sheave
4. Short Mower Belt Idler
5. Short Mower Belt
6. Mower Clutch Sheave
7. Long Mower Belt Idler
1
5
4
3
6
7
2
1
3
72" Belt
Layout
52" and 60"
Belt Layout
2
5
4
7
1
2
OF1641
OF1631
1. Right Hand Hydrostat
2. Hydro Belt
3. Left Hand Hydrostat
4. Spring
5. Clutch
6. Clutch Anchor
7. Engine Sheave
8. Idler
Figure 17
1
2
3
4
5
6
7
8
Highest
Cutting
Height
Lowest
Cutting
Height
OF3590
Figure 18
