Miller Electric Big Blue 452P, Big Blue 302P manual Servicing Fuel And Lubrication Systems

9-7. Servicing Fuel And Lubrication Systems

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YStop engine and let cool.

YAfter servicing, start engine and check for fuel leaks. Stop engine, tighten connec- tions as necessary, and wipe up spilled fuel.

1Oil Filter

2Oil Drain Valve And Hose

3Oil Fill Cap

4Fuel Line

5Primary Fuel Filter (Fuel/ Water Separator)

6Petcock

7Secondary Fuel Filter

8Fuel Tank Sludge Drain Valve

To change oil and filter:

Route oil drain hose and valve through hole in base. See engine manual and engine maintenance label for oil/filter change in- formation.

To drain water from fuel system:

Open primary fuel filter petcock and drain water into metal container. Close petcock when water-free fuel flows.

To replace primary fuel filter:

Turn filter counterclockwise. Re- move filter.

Fill new filter with fresh fuel. Apply thin coat of fuel to gasket on new fil- ter. Install new filter and turn clock- wise. Bleed air from fuel system ac- cording to engine manual.

Inspect fuel lines, and replace if cracked or worn.

To replace secondary fuel filter:

See engine manual.

To drain sludge from fuel tank:

YBeware of fire. Do not smoke and keep sparks and flames away from drained fuel. Dis- pose of drained fuel in an en- vironmentally-safe manner. Do not leave unit unattended while draining fuel tank.

YProperly lift unit and secure in a level position. Use ade- quate blocks or stands to support unit while draining fuel tank.

Attach 1/2 ID hose to drain valve. Put metal container under drain, and use screwdriver to open sludge drain valve. Close valve when sludge has drained. Remove hose.

Close door.

Tools Needed:

802 490 / Ref. 801 434

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