Cooling System Maintenance; Servicing The Cooling System - Toro 25430 Operator's Manual

Cooling System
Maintenance

Servicing the Cooling System

Coolant specification: a mixture of 50% ethylene glycol
and 50% water
Engine and Radiator coolant capacity: 17.2 L (18.2 US qt)
WARNING
If you remove the radiator cap from a hot engine,
hot coolant could spray, causing scalding.
• Wear face protection when opening the radiator
cap.
• Allow the cooling system to cool down to below
50°C (120°F) before removing the radiator cap.
• Follow the instructions for checking and
maintaining the engine cooling system.
WARNING
Coolant is toxic.
• Keep coolant away from children and pets.
• If you are not re-using the coolant, dispose of it
according to local environmental regulations.
Checking the Coolant Level in the
Reservoir
Service Interval: Before each use or daily
Note: Do not remove the radiator filler cap during this
procedure.
1. Park the machine on a level surface, stop the engine,
and remove the ignition key.
2. Allow the engine to cool.
3. Remove the right side panel; refer to Removing the
Side Panels (page 36).
4. Check the coolant level in the reservoir (Figure 77).
1. Reservoir
Note: Ensure that the coolant level is between the
Add mark and the Full mark on the reservoir (Figure
77).
5. Add the specified coolant until the coolant level is
halfway between the Add mark and the Full mark on
the reservoir.
Note: Ensure that the coolant solution is thoroughly
mixed before filling the reservoir.
6. Install the right side panel; refer to Installing the Side
Panels (page 37).
Checking the Coolant Level in the
Radiator
Service Interval: Every 50 hours
WARNING
If the engine has been running, the radiator will
pressurized and the coolant inside will be hot. If
you remove the cap, coolant may spray out, causing
severe burns.
• Do not remove the radiator cap to check coolant
levels.
• Do not remove the radiator cap when the engine
is hot. Allow the engine to cool for at least 15
minutes or until the radiator cap is cool enough
to touch without burning your hand.
Note: The cooling system is filled with antifreeze having a
mixture of 50% ethylene glycol and 50% water.
1. Park the machine on a level surface, stop the engine,
and remove the ignition key.
2. Allow the engine to cool.
3. Remove the nose panel; refer to Removing the Nose
Panel (page 37).
4. Open the vent valve for the engine (Figure 78).
55
Figure 77
2. Coolant level (halfway
between the Add and Full
marks)