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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
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.
•
Preferred: When mixing coolant from a
concentrate, mix it with distilled water.
Corrosion Inhibitor Type
Organic-acid technology
(OAT)
SAE International
J1034, J814, and 1941
•
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
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
75).
1. Expansion tank
Note:
With a cold engine, the coolant level
should be approximately midway between the
marks on the side of the tank.
4.
If the coolant level is low remove the expansion
tank cap, add the specified coolant to the tank
until the coolant level is midway between the
53
42).
Figure 75
g027618
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