Cooling System Maintenance; Servicing The Cooling System - Toro Z580-D Z Master 74266 Operator's Manual

10. Tighten the lock nuts until there is slight binding on
the feeler gauge but it can be moved easily within the
air gap (Figure 58).
11. Repeat this for the remaining slots.
12. Check each slot again and make slight adjustments
until the feeler gauge between the rotor and armature
with very slight contact between them.
Figure 58
1. Slot
2. Adjusting nut
13. Install the clutch to the engine shaft with the key.
14. Apply blue Loctite® (or equivalent) to the center
bolt.
15. While holding the crank shaft at the back of the
machine, install the center bolt and torque it to 50
ft-lbs (68 N-m) (Figure 57).
16. Install the rubber clutch strap to the mower frame
with the two previously removed bolts and nuts
(Figure 57).
17. Pull up on the spring loaded idler for the PTO drive
belt and install it onto the clutch pulley (Figure 56).
18. Plug in the electric connection for the clutch
(Figure 57).
19. Install the front engine panel and tighten the knobs.
20. Lower down the seat.
3. Feeler gauge
Cooling System
Maintenance

Servicing the Cooling System

Discharge of hot pressurized coolant or
touching hot radiator and surrounding parts
can cause severe burns.
• Do not remove the radiator cap when the
engine is hot. Always allow the engine to
cool at least 15 minutes or until the radiator
cap is cool enough to touch without burning
your hand before removing the radiator cap.
• Do not touch radiator and surrounding parts
that are hot.
Rotating shaft and fan can cause personal
injury.
• Do not operate the machine without the
covers in place.
• Keep fingers, hands and clothing clear of
rotating fan and drive shaft.
• Shut off the engine and remove the ignition
key before performing maintenance.
Swallowing engine coolant can cause poisoning.
• Do not swallow engine coolant.
• Keep out of reach from children and pets.
Checking the Radiator Coolant
Service Interval: Before each use or daily
After the first 8 hours
Every 100 hours
Fluid Type: 50/50 mix of extended life
antifreeze/Dex-Cool® and water
Cooling System Capacity: 156 ounces (4.6 l)
Note: Do not open the radiator cap. Doing this may
induce air into the cooling system.
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