Toro 25450A Operator's Manual page 67

Note: Dispose of the used coolant properly according
to local codes.
Figure 106
1. Drain valve
9. Close the drain valve
10. Remove the drain hose and clamp
Figure 105).
Flushing the Cooling System
Engine and radiator coolant capacity: 18.5 L (19.5 US qt)
1. Condition the cooling system as follows:
A. Ensure that the coolant is drained from the
radiator and that the drain valve is closed
106).
B. Add a cooling system cleaning solution to the to
the cooling system through the filler neck of the
recovery tank
Note: Use cleaning solution of sodium carbonate
and water (or a commercially available equivalent).
Follow the directions that come with the cleaning
solution.
(Figure 106).
(Figure 104
(Figure 107).
and
1. Reservoir door
2. Filler neck (recovery tank)
C. Operate the engine for 5 minutes or until the
coolant temperature in the command-center
display indicates 82°C (180°F), then stop the
engine
(Figure
Important: Do not install the recovery-tank
cap.
1. 180° F water temperature (command-center display)
The cleaning solution is hot and can
cause burns.
Stay away from the discharge end of the
coolant drain hose.
67
Figure 107
3. Funnel
4. Coolant system cleaning
solution
(Figure 108).
Figure 108
CAUTION