Ariens Promaster PM144Z Owner's/Operator's Manual page 23

5. Arrange newmower b elt(s)ondeck(mower d rivebelt
first).Retighten s hortmower b eltidlerpivotbolt.Install
beltsonsheaves. Putbeltsontocentersheave last.
IMPORTANT: Prior to starting the unit, ensure that there are
no twists in the mower drive belt as any twist in the PTO
mower belt will drastically reduce the belt life.
6. Replace belt covers and return foot board to closed
position.
1
6
1. PTO Mower Belt
2. Mower Drive Belt
3. Springs
4. Mower Drive Belt Idler
5. PTO Belt Idler
6. PTO Clutch Sheave
7. Center Sheave
Figure 16
Replacing the Hydro Pump Belt
1. Properly stop and park unit (See OPERATION on
page 12).
2. Remove the PTO mower belt from the PTO clutch
sheave (See Replacing Mower Belts on page 22).
_i AUTION: Use care when releasing idler spring
tension. Keep body parts well away from idlers
when performing this operation.
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 PTO mower belt on PTO clutch sheave. See
Replacing Mower Belts on page 22.
6
2
4 7
1. Hydro Belt
2. Spring
3. Idler
4. Engine Sheave
5. Left Hand Hydrostat
6. Right Hand Hydrostat
7. Clutch
8. Clutch Anchor
Figure 17
OF163I
MOWER DECKS
Anti-scalp Roller Adjustment
The anti-scalp rollers are set at the factory for typical
mowing height, but can be adjusted for high or low cutting
conditions (Figure 18).
Anti-Scalp rollers are intended to prevent lawn scalping, not
to control cutting height.
For a very high cutting height, set the anti-scalp rollers in the
lowest position on the bracket.
For a very low cutting height, set the anti-scalp rollers in the
highest position on the bracket.
NOTE: There are four anti-scalp rollers on the outside of the
mower deck and four anti-scalp rollers on the inside of the
mower deck. Make sure all anti-scalp rollers are set at the
same height.
Lowest
Cutting
Height
Highest
Cutting
Height
Figure 18
OF3590
GB - 23