TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 (5)   Remove retainer (18), spring (19), and disc (20). b. Inspection and Test.  Visually examine springs and disc for cracks and other damage. c. Repair.    Repair  by  replacing  any  damaged  or defective parts. d. Reassembly. (1)   Replace disc (20), spring (19), and bypass spring (18). (2)   Replace gasket (11) and install washers (7), capscrews (6), and capscrews (5). (3)   Install washers (2) and capscrews (1). (4)   Replace O-ring (4) and install oil transfer tube (3). (5)   Replace the oil filters and refill the engine oil in accordance with the Operator/Crew and Organizational Maintenance manual. 13-13.  INJECTORS.  The following paragraphs contain test, adjustment, and repair procedures for the injectors.(See   figure   13-16.)   Refer   to   Operator   and Organizational Maintenance manual for removal procedures and proceed as follows: a. Leakage  Test.    The  leakage  test  is  conducted using  an  injector  leakage  tester  (see  figure  13- 17).      Refer   to   paragraph   g.   and   proceed   as follows: (1)   Oil injector O-rings (10). (2)   Install plunger extension on plunger (7) and remove spring (4). (3)   Align  injector  delivery  orifice  with  locating screw hole or bushing hole in adapter pot. (4)   Using hand pressure, press injector into pot until it bottoms. (5)    Insert and tighten locating screw. (6)   Plug fuel inlet port using plug provided with spray angle tester. (7)   Install injector into leakage tester and clamp into position.  Support plate may be tilted for easier installation of injector. (8)   Operate     retraction     lever     and     read     air flowmeter at top of ball float. (9)   Rotate  plunger  by  small  increments  to  find the   highest   reading   on   flowmeter.      The maximum  readings  should  not  exceed  4.5 (worn limit). (10) If maximum readings exceed 4.5 worn limit, repair injector. (11) With this test completed, place retraction lever to "A" position; disconnect transfer line; exhaust the air cylinder, and remove injector. (12) Remove plunger and reinstall spring and plunger. b. Cup   Spray   Pattern   Check.      The   cup   spray pattern check is conducted using a spray angle tester.  Refer  to  paragraph  h,  and  proceed  as follows: (1)   Insert injector into adapter. (2)   Remove   plunger   (7)   and   spring   (4)   from injector. (3)   Install plunger bore plug and rubber seal in injector    plunger    bore.        Protect    injector plunger from dirt or damage during tests. (4)   Place  injector  into  special  seat  and  adjust holddown    bracket    into    position    required, then tighten thumb screw. (5)   Tighten    knob    against    plug    and    seal    in plunger bore so it seals thoroughly. 13-29