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MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

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Operating Instructions<br />

D. Return the engine speed to normal idle after two or three<br />

minutes.<br />

E. Monitor the engine temperature. After the temperature<br />

returns to normal, allow the engine to idle 3 to 5 minutes<br />

before shutting it off. This allows the engine to cool gradually<br />

and uniformly.<br />

• If the overheating came from severe operating conditions,<br />

the temperature should have cooled by this<br />

time.<br />

FILL<br />

Instruments and Controls<br />

F. Check the level of coolant in the coolant expansion tank<br />

(engine compartment, right side.)<br />

WARNING! Removing the radiator fill cap while<br />

the engine is hot can be dangerous. Never<br />

remove the caps of the expansion tank while the<br />

engine is still hot; you could be badly burned.<br />

• Scalding steam and fluid under pressure may<br />

escape and cause serious personal injuries.<br />

• Wait until the coolant temperature is below 122°F<br />

(50°C).<br />

• Protect your face, hands, and arms by covering the<br />

cap with a large, thick rag to protect against escaping<br />

fluid and steam.<br />

WARNING! Carefully and slowly turn cap one<br />

turn to allow excess pressure to escape, then<br />

push down and turn for final removal.<br />

G. See page 151 for instructions on checking and filling the<br />

coolant expansion tank.<br />

02604<br />

Coolant Expansion Tank<br />

Model <strong>330</strong> PB1318 3/01 – 23 –

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