Toro 23825, Operator'S Manual

Page: 103 / 128

A. Open the filler-neck cap.
B. Fill the radiator with clean water ( Figure 143 ).
Figure 143
1. Filler neck 3. Clean water
2. Funnel
C. Close the filler-neck cap.
D. Operate the engine for 5 minutes or until the
coolant temperature indicates 82°C (180°F), and
then stop the engine.
CAUTION
The water is hot and can cause burns.
Stay away from the discharge end of the
coolant drain plug.
E. Open the drain plug and drain the water into a
drain pan.
F. Clean the threads on the drain plug and apply 3
layers of PTFE sealing tape.
G. If the water drained from the radiator is dirty,
perform steps
3 - A through 3 - E until the water
drained from the radiator is clean.
H. Close the drain plug ( Figure 141 ).
Filling the System with Coolant
Important:
You must fill the cooling system properly to
prevent air locks in the cooling passages. Failing to vent
the cooling system properly can severely damage the
cooling system and engine.
Important:
Use a mixture of 50% ethylene glycol and
50% water mixture or equivalent in the machine. The
lowest ambient operating temperature for this mixture
is above -37° C (-34° F). If the ambient temperature is
lower, adjust the mixture. Use a mixture of ethylene
glycol and water or equivalent in the machine all year.
1. Park the machine on a level surface, stop the engine,
and remove the ignition key.
2. Remove the bolts from the coolant-access cover
between the front hood and the rear cover
Figure 144
1. Coolant-access cover 2. Bolts
3. Remove the radiator cap ( Figure 145 ).
Figure 145
1. Radiator cap
4. Fill the radiator with coolant until the fluid level is up
to the bottom of the filler neck (
Figure 146 ).
Note:
The coolant capacity of both the engine and
the radiator is 16.8 L (17.7 US qt).
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