Gravely Promaster 252Z Owner's And Operator's Manual page 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.
3
2
1
7
2
1
7
1
6
Figure 16
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.
CAUTION: Use care when releasing idler spring
tension. Keep body parts well away from idlers
when performing this operation.
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.
4
5
72" Belt
Layout
2
52" and 60"
Belt Layout
4
5
3
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
OF1641
1
8
7
1. Right Hand Hydrostat
2. Hydro Belt
3. Left Hand Hydrostat
4. Spring
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.
Lowest
Cutting
Height
Highest
Cutting
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.
GB - 23
2
5
6
5. Clutch
6. Clutch Anchor
7. Engine Sheave
8. Idler
Figure 17
Figure 18
3
4
OF1631
OF3590