Inspecting And Cleaning Spark Arrestor Muffler; Servicing Engine Cooling System - Miller Big Blue 450 Duo CST Owner's Manual

8-6. Inspecting And Cleaning Spark Arrestor Muffler

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8-7. Servicing Engine Cooling System

OM-247 969 Page 40
3
!
Stop engine and let cool.
1 Spark Arrestor Muffler
2 Cleanout Plug
Remove plug and remove any dirt
covering cleanout hole.
3 Exhaust Pipe
Start engine and run at idle speed to
blow out cleanout hole. If nothing
blows out of hole, briefly cover end
of exhaust pipe with fireproof
material.
!
Stop engine and let cool.
Reinstall cleanout plug.
Tools Needed:
3/8 in.
!
Stop engine and let cool.
4 Radiator Cap Cover
5 Radiator Draincock
6 Coolant Recovery Tank
Change coolant according to engine
manual. Add coolant according to engine
maintenance label.
Check coolant level in recovery tank
daily. If necessary, add coolant to recov-
ery tank until coolant level is between
Cold Full and Hot Full levels. If recovery
tank coolant level was low, also check
coolant level in radiator. Add coolant if
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level is below bottom of radiator filler
neck.
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Coolant1 2010−04 / Ref. 907 427-6
907 427-2