Replacing The Pump Drive Belt - Toro Z580-D Z Master Operator's Manual

1. Disengage the PTO, move the motion control levers
to the neutral locked position and set the parking
brake.
2. Stop the engine, remove the key, and wait for all
moving parts to stop before leaving the operating
position.
3. Tilt the seat forward, loosen the bolts and remove
the front engine panel (Figure 69).
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1. Bolts
4. Remove the spring from the idler arm (Figure 70).
5. Remove the clutch stop bracket.
6. Remove the old PTO drive belt.
7. Install the PTO drive belt around the clutch pulley
and the gearbox pulley (Figure 70).
8. Install the rubber clutch stop.
9. Install the spring to the idler arm (Figure 70).
10. Install the front engine panel.
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1
G012347
Figure 69
2. Front engine panel
1. Gear box
2. Spring
3. Spring loaded idler pulley

Replacing the Pump Drive Belt

Service Interval: Every 50 hours—Check the pump
drive belt.
Note: Remove the PTO drive belt first if the pump
drive belt needs to be replaced.
1. Tilt the seat forward, loosen the bolts and remove
the front engine panel.
2. Remove the PTO drive belt.
3. Remove the spring from the idler arm (Figure 71).
4. Install the new belt around the engine and hydro
pump pulley (Figure 71).
5. Install the PTO drive belt.
6. Install the spring to the idler arm (Figure 71).
7. Install the front engine panel.
50
Figure 70
4. Clutch
5. Rubber clutch stop
6. PTO Drive belt