OPERATOR'S MANUAL

Cooling System Preventive Maintenance
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PB1318 3/01 Model 330
concentration and corrosion inhibitor content as the original
coolant in the cooling system. Never add 100% antifreeze to
the cooling system. Always dilute antifreeze to the correct
concentration based on freeze protection prior to adding it to
the cooling system. Adding or using 100% antifreeze in a
cooling system may result in cooling system plugging and
overheating problems.
NOTE: If frequent topping up is necessary and there
are not visible signs of coolant leaks when the
engine is cold, check for leaks with the engine oper-
ating at normal operating temperature.
WARNING! Do not remove the radiator cap on a
hot engine. It can cause scalding coolant to
spray out and you could be burned. If the engine
has been operated within the last 30 minutes, be
very careful in removing the radiator cap.
• Protect face, hands, and arms against escaping fluid
and steam by covering the cap with a large, thick
rag.
• Carefully and slowly turn cap (on expansion surge tank)
one quarter of a turn to allow excess pressure to escape
before completely removing cap. If you see any steam or
coolant escaping, do not even try to remove it until the
radiator cools down. If you see nothing escaping, still
remove the cap very slowly and carefully. Be ready to
back off if any steam or coolant begins to escape.
WARNING! Handle coolant and antifreeze care-
fully. Ethylene glycol antifreeze is poisonous.
Store in original fluid container only, and always
keep out of reach of children.
• Also, never remove the cap on the surge tank while
the engine is still hot. Wait until the coolant tempera-
ture is below 120°F (50°C). Scalding steam and fluid
under pressure may escape and cause serious per-
sonal injuries.
WARNING! Do not work near the fan with the
engine running. The engine fan can engage at
any time without warning. Anyone near the fan
when it turns on could be seriously injured.
Before turning on the ignition, be sure that no
one is near the fan.