Gravely Promaster 260Z Owner's/Operator's Manual page 22

3. Remove belt guard from rear of unit (figure 17).
1. Belt Guard
CAUTION: Use care when releasing idler spring
tension. Keep body parts well away from idlers
when performing this operation.
4. Place 1/2-inch driver and ratchet extension into square
hole in PTO belt idler (figure 16).
5. While pulling PTO belt idler towards rear of unit, remove
PTO mower belt from PTO belt idler.
6. Slowly release tension on PTO belt idler until all tension
is removed from springs.
7. Remove PTO mower belt from blade spindle pulleys,
idler pulleys, and electric clutch.
Installation (Figure 16 and 17)
1. Install the new PTO belt on electric clutch, idler pulleys,
and blade spindle pulleys (figure 16).
2. Place 1/2-inch driver and ratchet extension into square
hole in PTO belt idler.
3. While pulling PTO belt idler towards the rear of unit,
install PTO mower belt on PTO belt idler.
4. Slowly release the tension until PTO belt idler is firmly
against PTO belt.
5. Install belt guard on rear of unit (figure 16).
6. Install left hand belt cover on mower deck.
7. Close footboard (see Mower Drive Belt and PTO Belt
Access on page 21)
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Figure 17
MOWER DRIVE BELT REMOVAL
Removal (Figure 16)
NOTE: The PTO belt must be removed from blade spindle
pulleys prior to removing mower drive belt. The PTO belt
does not need to be removed from electric clutch.
1. Remove PTO belt from blade spindle pulleys (see PTO
Belt Removal on page 21).
2. Remove mower drive belt from right blade spindle pulley
and then from center blade spindle pulley.
3. Loosen drive belt idler pivot bolt just enough to gain
clearance to remove mower drive belt from under drive
belt idler.
Installation (Figure 16)
1. Install the new mower drive belt on center blade spindle
pulley, right blade spindle pulley, and drive belt idler.
2. Tighten drive belt idler pivot bolt.
3. Install PTO belt on blade spindle pulleys (see PTO Belt
Removal on page 21).
TRANSMISSION BELT REMOVAL
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Removal (Figure 18)
NOTE: A 1/2-inch ratchet driver is needed to remove
transmission belt.
1. Place hood in the full service position (see Service
Positions on page 17).
CAUTION: Use care when releasing idler spring
tension. Keep body parts well away from idler when
performing this operation.
2. Place a 1/2-inch ratchet driver into square hole in idler
pulley.
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1
1. Square Hole
2. Idler Pulley
3. Crankshaft Pulley
4. Transmission Belt
3. While pulling idler pulley away from unit, remove
transmission belt from idler pulley.
GB - 22
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5
6
5. Hydrostatic Pump
Pulleys
6. Spring
Figure 18
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