8-6. Inspecting And Cleaning Spark Arrestor Muffler

! 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.

3

Reinstall cleanout plug.

1

2

Tools Needed: 3/8 in

803 582 / Ref. 222 875

8-7. Servicing Engine Cooling System

! Stop engine and let cool. 1 Radiator Draincock

2 Radiator Cap Cover

Change coolant according to engine manual. Add coolant according to Sec- tion 5-6).

Run engine until engine reaches normal operating temperature. Check coolant level in recovery tank. Add coolant if nec- essary.

 

After engine cools, check coolant level

2

again and add coolant if necessary.

 

1

804 009−A / Ref 222 875

OM-223 037 Page 37

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Miller Electric Big Blue 400 PX manual Inspecting And Cleaning Spark Arrestor Muffler, Servicing Engine Cooling System