Blue Bird Coachworks 450 LXi, Owner'S Manual

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450 LXi Owner Manual 5-3 Engine Maintenance
Rev. “C”
~ 5-3-19 ~
5-3.18 Cooling System Coolant Level - Check
Check the coolant level when the engine is stopped and cool.
Remove the cooling system fi ller cap slowly in order to relieve pressure.
Maintain the coolant level within 13 mm (0.5 inch) of the bottom of the fi ller pipe. If the
engine is equipped with a sight glass, maintain the coolant level to the proper level in the
sight glass.
1.
2.
Clean the cooling system fi ller cap and check the
condition of the fi ller cap gaskets. Replace the cooling
system fi ller cap if the fi ller cap gaskets are damaged.
Reinstall the cooling system fi ller cap.
Inspect the cooling system for leaks.
3.
4.
5-3.19 Cooling System Supplemental
Coolant Additives (SCA) - Test/Add
5-3.19.1 Test the SCA Concentration
Coolant/Antifreeze and SCA
Use the 8T-5296 Coolant Conditioner Test Kit or use the 4C-9301 Coolant Conditioner Test Kit in order to check the
concentration of the SCA.
WARNING!!
Pressurized System - Hot coolant can cause serious burns. To open the
cooling system fi ller cap, stop the engine and wait until the cooling system components are
cool. Loosen the cooling system pressure cap slowly in order to relieve the pressure.
NOTICE: Cooling system coolant additive contains alkali. To help prevent personal injury, avoid contact with the
skin and eyes. Do not drink cooling system coolant additive.
NOTE: Test the Supplemental Coolant Additive (SCA) or test the SCA concentration as part of the S•O•S Coolant
Analysis.
NOTICE: Do not exceed the recommended six percent supplemental coolant additive concentration.
WARNING!!
Cooling system coolant additive contains alkali. To help prevent personal injury, avoid contact
with the skin and the eyes. Do not drink cooling system coolant additive.