Service as Required 1. Loosen the air bleed vent screw (A) two full turns by hand on fuel filter base. A—Vent Screw RG7947 –UN–13NOV97 Air Bleed Vent Screw OURGP12,00001E9 –19–05MAR03–2/5 2. Operate supply pump primer lever (B) until fuel flow is free from air bubbles. 3. Tighten bleed plug securely, continue operating hand primer until pumping action is not felt. Push hand primer inward (toward engine) as far as it will go. 4. Start engine and check for leaks. RG8013A –UN–15JAN99 If engine will not start, it may be necessary to bleed air from fuel system at fuel injection pump or injection nozzles as explained next.
Fuel Supply Pump Primer Lever B—Fuel Supply Pump Primer Lever Continued on next page OURGP12,00001E9 –19–05MAR03–3/5 40-20 021604 PN=193