Cooling System Maintenance; Cooling System Safety; Coolant Specification; Checking The Coolant Level - Toro Reelmaster 3100-D Operator's Manual

Cooling System
Maintenance

Cooling System Safety

•
Swallowing engine coolant can cause poisoning;
keep out of reach from children and pets.
•
Discharge of hot, pressurized coolant or touching
a hot radiator and surrounding parts can cause
severe burns.
– Always allow the engine to cool at least 15
minutes before removing the radiator cap.
– Use a rag when opening the radiator cap, and
open the cap slowly to allow steam to escape.

Coolant Specification

The coolant reservoir is filled at the factory with a
50/50 solution of water and ethylene glycol base
extended-life coolant. Check the coolant level before
you first start the engine and daily thereafter; refer to
Checking the Coolant Level (page
The following commercially available coolants or
a manufacturer-specified equivalent meeting the
long-life coolant specification:
Extended-Life Coolant Products
Ford (Motorcraft™)
FCA—Chrysler (Mopar™)
General Motors (AC
Delco™)
Volkswagen
Coolants meeting technical standards ASTM D3306 or
D4985, or SAE J1034, J814, or 1941.
Important:
Do not rely on the color of the coolant to
identify the difference between conventional (IAT) and
extended-life (OAT) coolant types.
Coolant manufacturers may dye extended-life coolant
(OAT) in one of the following colors: red, pink, orange,
yellow, blue, teal, violet, and green.
Coolant Types
Ethylene-Glycol Corrosion
Coolant Type Inhibitor Type
Extended-life Organic-acid
antifreeze technology (OAT)
Conventional Inorganic-acid
antifreeze (green) technology (IAT)
55).
WSS-M97B44-D
MS-12106
GM6277M (Dex-Cool™)
GMW 3420
G12
G12+
G12++
Service Interval
5 years
2 years
Note:
When adding coolant to the machine, you will
not damage the cooling system by mixing conventional
(IAT) antifreeze with extended-life (OAT) antifreeze.
However, mixing antifreeze types degrades the long
life/extended life attribute of the OAT formulation.
Important:
The service interval of conventional
(IAT) and extended-life (OAT) blended-coolant
mixture—at any ratio—lasts as long as the coolant
with the shortest service interval: 2 years.

Checking the Coolant Level

Service Interval: Before each use or daily
Cooling system capacity: approximately 5.7 L (6 US
qt)
CAUTION
If the engine has been running, the
pressurized, hot coolant can escape and
cause burns.
• Do not open the radiator cap when the
engine is running.
• Use a rag when opening the radiator cap,
and open the cap slowly to allow steam to
escape.
1. Prepare the machine for maintenance; refer to
Preparing for Maintenance (page
2. Unlatch and open the hood.
3. Check the coolant level in the expansion tank
(Figure 77).
1. Expansion tank
Note:
With a cold engine, the coolant level
should be approximately midway between the
marks on the side of the tank.
55
44).
Figure 77
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