. MAINTENANCE SERVICE PROCEDURE parts PROCEDURE FOR BLEEDING AIR WARNING 3. Open air bleeding valve (2). 4 - 38 BLEED AIR FROM FUEL CIRCUIT This mach ine is equ ipped with an elect ric priming pump to bleed the air from the fuel circuit . In the following cases, use the pr ocedure b elow to bleed the When f uel filter ha s been replaced of fuel When e ngine has run out of When s tarting the engine for the firs t time afte r replacing t For her the machine machine starts up a ll of sudden , causing a personal injury. When us ing the elec tric priming pump, d o not loose n the air bleed plug for the fuel circuit.
When th e electric priming pump is operated , pressure i s applied to the fuel circuit, so if the air bleed plug is loosened, fuel will spurt o ut and create a dangerous situation 1. Turn th e key in t he starting switch t o the OFF positio n and the en 2. Check that fuel t ank valve ( 1) is op