Toro 74211 Operator's Manual page 48

250 series liquid cooled with 52" sfs side discharge mower
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Maintenance
7.
Remove the radiator cap and add 50/50 mixture
of permanent antifreeze and water until
completely full.
8.
Wait 2 minutes and check if coolant stays up to
full level. Add 50/50 mixture of permanent
antifreeze and water until completely full, if
required. Repeat until the coolant stays up to the
full level.
9.
With the radiator cap off, tilt the engine cover
down and put the seat down. Start the engine.
Run engine until it is warm.
10. Tilt seat up, tilt engine hood forward and keep
engine running. As air is purged from the engine
block and the coolant level drops, add additional
coolant to the radiator until full.
11. Reinstall radiator cap. Completely seat cap by
pushing down and turning until it stops.
12. Shut off engine.
13. Check for any leaks in the cooling system.
14. Close engine cover and tilt seat back.
IMPORTANT: Check level of coolant after
the first 8 hours of changing coolant.
1
2
Figure 29
1. Radiator Cap
46
2. Antifreeze Overflow Bottle
Cooling System Inspection
Inspect the radiator and the hoses initially and after
first 8 hours.
Inspect the radiator and the hoses every 200 hours.
1.
Check hoses and radiator for cracks, dents and
fractured seams. Repair or replace damaged
hoses or radiator.

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