TM 10-3930-669-34 CAUTION Do not remove timing device adjustment     screws.          Screws     can easily  fall  inside  engine  resulting  in damage to equipment or major engine disassembly. (7) Loosen three screws (22) on timing device (23). Do not remove screws. (8) With the aid of an assistant, perform adjustment steps (1) through (4). (9) Rotate    clamping    nut    (24)    until    fuel    flow    is reduced to droplets. (10) Tighten three screws (22) on timing device (23). (11) Repeat step (4) to verify adjustment. c. Removal. WARNING · Fuel  is  very  flammable  and  can  explode  easily.    To  avoid  serious  injury  or  death,  keep  fuel away from open fire and keep fire extinguisher within easy reach when working with fuel.  Do not work on fuel system when engine is hot.  Fuel can be ignited by hot engine.  When working with fuel, post signs that read NO SMOKING WITHIN 50 FEET (15 m). · Fuel and oil are slippery and can cause falls.  To avoid injury, wipe up spilled fuel or oil with rags. NOTE Use wiping rag to wipe up any spilled fuel    during    removal    of    adjustment equipment. (1) Remove reservoir line from adapter (19). (2) Remove adapter (19) from fitting (18) of injection pump (6). 4-13