freightliner Argosy COE 2011, Maintenance Manual

Page: 55 / 193

WARNING
Do not attempt to drain the cooling system until
the coolant and engine are cool. Draining the
cooling system prior to the system cooling could
cause severe personal injury due to scalding.
5. Remove the drain plugs from the radiator side
tank, the lower tank on auxiliary radiators, and at
the lower radiator outlet pipe elbow, if equipped.
See
Fig. 4 . Allow the coolant to drain.
6. Install and tighten the drain plug(s) and the ra-
diator outlet pipe drain plug after the radiator has
been drained. Do not overtighten the plugs.
7. Flush the radiator(s) as follows.
7.1 Disconnect the radiator upper and lower
hoses.
7.2 Attach the flushing gun nozzle to the ra-
diator at the lower radiator hose opening.
Run the water until the radiator is full.
NOTICE
When flushing the radiator, do not apply more
than 15 psi (100 kPa) air pressure. Excessive pres-
sure can damage the radiator.
f500244 06/08/95
1
2
3
1. Low-Coolant-Level Sensor
2. SAE Cap (for coolant overflow pressure relief only)
3. Fill Cap
Fig. 1, Surge Tank, Century Class Conventional
07/21/98
1
2
3
f200465
1. Radiator/Charge Air Cooler Assembly
2. Fill Cap
3. Surge Tank
Fig. 2, Surge Tank, Argosy COE
Engine Cooling/Radiator
20
Century Class Trucks Maintenance Manual, January 2016
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