Cooling System Maintenance; Servicing The Cooling System - Toro 41393 Operator's Manual

Cooling System
Maintenance
Servicing the Cooling
System
Service Interval: Every 100 hours—Check the
cooling-system hoses for wear and
damage.
Cooling system capacity: 5.5 L (5.8 US qt)
Coolant type: a solution of 50% water and 50%
permanent ethylene glycol antifreeze
Important:
Do not add coolant to an overheated
engine until the engine has fully cooled. Adding
coolant to an overheated engine may crack the
engine block.
Check the engine-coolant concentration as directed
by the coolant manufacturer.
Checking the Coolant Level
Service Interval: Before each use or daily Check the
level of coolant in the radiator and
the expansion tank at the beginning
of each day before starting the
engine.
CAUTION
If the engine has been running, the coolant
may be hot and pressurized. If you open
the radiator cap when the coolant is hot, it
could spray out and severely burn you or
bystanders.
Allow the engine to cool for at least 15
minutes before opening the radiator cap.
1. Position the sprayer on a level surface.
2. Set the parking brake, stop the pump, stop the
engine, and remove the key from the starter
switch.
3. Carefully remove the radiator cap and the
expansion-tank cap (Figure 85).
1. Radiator cap
2. Expansion tank
4. Check the coolant level in the radiator and in the
expansion tank.
Note:
The radiator should be filled to the top of
the filler neck and the expansion tank filled to
the Full mark on the tank
5. If the coolant level is low, remove the
expansion-tank cap and the radiator cap, and
fill the expansion tank to the Full mark and the
radiator to the top of the filler neck
Important:
Do not overfill the expansion
tank.
Important:
Do not use water only or an
alcohol/methanol-based coolant.
6. Install the radiator cap and the expansion-tank
cap (Figure 85).
Changing the Cooling-System
Fluid
Service Interval: Every 400 hours/Yearly (whichever
comes first)—Check the coolant (as
directed by the manufacturer) and
change if necessary.
1. Position the sprayer on a level surface, set the
parking brake, stop the pump, stop the engine,
and remove the key from the starter switch.
66
Figure 85
3. Expansion-tank cap
4. Full-line mark
(Figure 85).
(Figure
g028232
85).