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.
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
Corrosion Inhibitor Type
Extended-life antifreeze
Organic-acid technology
(OAT)
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
SAE International
D3306 and D4985
J1034, J814, and 1941
Important:
Coolant concentration should be a 50/50
mixture of coolant to water.
•
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 Coolant Level
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.
Coolant Capacity:
6.6 L (7.0 US qt
1.
Prepare the machine for maintenance; refer to
Preparing for Maintenance (page 52)
.
2.
Open the hood; refer to
Opening the Hood (page 52)
.
3.
Check the level of coolant in the reservoir (
Note:
The coolant level is correct if it is cold mark
on the side of the tank when the engine is cold, and
the hot mark when the engine is hot.
g378285
Figure 139
1.
Cap (coolant reservoir)
2.
Hot engine-coolant mark
3.
Cold engine-coolant mark
4.
If the coolant level is low, remove the coolant-reservoir
cap and add the specified coolant until the level it is
at the cold mark (for a cold engine) or hot mark (for
a hot engine).
Note:
Do not overfill the expansion tank with coolant.
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