Cooling System Maintenance; Cooling System Safety; Coolant Specification; Checking The Cooling System And Coolant Level - Toro Groundsmaster 3300 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.
•
Do not operate the machine without the covers
in place.
•
Keep your fingers, hands and clothing clear of
rotating fan and drive belt.

Coolant Specification

The coolant reservoir is filled at the factory with a
50/50 solution of water and ethylene glycol base
extended-life coolant.
Important:
Use only commercially available
coolants that meet the specifications listed in the
Extended Life Coolant Standards Table.
Do not use conventional (green) inorganic-acid
technology (IAT) coolant in your machine. Do
not mix conventional coolant with extended-life
coolant.
Coolant Type Table
Ethylene-Glycol Coolant
Type
Extended-life antifreeze
Important:
Do not rely on the color of the coolant
to identify the difference between conventional (green)
inorganic-acid technology (IAT) coolant and extended-life
coolant.
Coolant manufacturers may dye extended-life coolant in
one of the following colors: red, pink, orange, yellow,
blue, teal, violet, and green. Use coolant that meets the
specifications in the Extended Life Coolant Standards
Table.
Extended Life Coolant Standards
ATSM International
D3306 and D4985
Important:
Coolant concentration should be a
50/50 mixture of coolant to water.
Corrosion Inhibitor Type
Organic-acid technology
(OAT)
SAE International
J1034, J814, and 1941
•
Preferred: When mixing coolant from a
concentrate, mix it with distilled water.
•
Preferred option: If distilled water is not available,
use a pre-mix coolant instead of a concentrate.
•
Minimum requirement: If distilled water and
pre-mix coolant are not available, mix concentrated
coolant with clean drinkable water.
Checking the Cooling
System and Coolant Level
Service Interval: Before each use or daily—Check
the cooling system and the coolant
level.
Before each use or daily—Remove debris from
the engine area, oil cooler, fuel cooler, and
radiator (clean them more frequently in dirty or
dusty conditions).
Every 1,500 hours—Change the engine coolant
When the engine is cold, the coolant level should
be no higher than the C
expansion tank (Figure
warm, the coolant level should be no higher than the
F (H ) mark.
ULL OT
If the coolant is above the C
is cold, it may leak out of the tank when the engine
gets hot during operation.
1. When the engine is cold, check the level of the
coolant in the expansion tank.
1. Cap
2. F (H ) mark
ULL OT
62
mark on the side of the
OLD
72). When the engine is
mark when the engine
OLD
Figure 72
3. C mark
OLD
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