Ariens 991073-Max Zoom 48 Specifications Page 26

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GB - 26
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 19).
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.
NOTE: The PTO idler spring length range is
12.25 to 12.50 in. (31.0 to 31.8 cm)
measured at a 3.0 in. (7.62 cm) cutting
height. Adjust the idler spring length as
needed, see Figure 20.
6. Replace belt covers and return foot
board to closed position.
Replacing the Hydro Pump Belt
1. Properly stop and park unit (See
Operation on page 12).
2. Remove the PTO belt from the mower
clutch sheave (See Replacing Mower
Belts on page 25).
3. Slowly release the tension on the hydro
pump belt idler until all the tension is
removed from the springs.
4. Remove old hydro pump belt from right
hand hydrostat sheave first (Figure 21).
5. Install new hydro pump belt by
positioning belt on sheaves. Put belt
onto right hand hydrostat sheave last.
6. Replace long mower belt on mower
clutch sheave. See Replacing Mower
Belts on page 25.
Figure 19
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
1
2
4
7
6
5
3
CAUTION: Use care when
releasing idler spring tension.
Keep body parts well away from
idlers when performing this
operation.
OF4345
Figure 20
The PTO idler spring length range is
12.25 to 12.50 in. (31.0 to 31.8 cm)
measured at a 3.0 in. (7.62 cm) cutting
height. Adjust as necessary.
Measure PTO
idler spring
length here.
PTO Idler Spring Length
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