Branson 6640C - Fuel Filter

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PERIODIC MAINTENANCE & ADJUSTMENT
3. FUEL FILTER
DRAINING AIR IN FUEL LINE
Drain the air from the fuel tank, fuel lter, and fuel lter
element when the engine stops as the fuel runs out or
during maintenance.
1) Rell fuel to fuel tank.
2) Press top button of fuel lter until pressure is
formed, this allows air removal automatically.
Note) If air is not removed, then there will be air in
the fuel lines. Please check fuel lines for leakage or
breakage.
6640C OPERATORS MANUAL (012612).indd 132 1/30/2012 2:31:06 PM