TM 10-3930-669-34 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). INJECTION PUMP TIMING CHECK Check injection pump timing (Para 4-4). (a) If injection pump timing is incorrect, reset timing. (b) If injection pump timing is correct, go to Step 3 of this Fault. VERIFY REPAIR (1) Start engine (TM 10-3930-669-10). (2) Operate forklift and observe engine temperature gauge. (a) If  engine  temperature  does  not  go over  250’F  (121’C),  fault  corrected. Perform Step (3) below. (b) If   engine   temperature    goes    over 250’F  (121  ’C),  fault  not  corrected. Perform  Step  (3)  below  and  notify supervisor. (3) Shut down engine. 2-51