TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 (12) Hold   injector   in   vertical   position   (cup down)  and  allow  plunger  to  drip  a  few drops of test oil into cup. (13) Insert  plunger  about  1/2  inch  (12.7  mm) into barrel to be certain plunger is started straight. (14) Jam  coupling  with  palm  of  hand  to  seat plunger   in   cup   and   rotate   90   degrees while  holding  plunger  firmly  against  cup seat. (15) Hold   injector   with   cup   up   and   plunger should   slide   out   when   injector   is   lifted quickly. (16) If   plunger   does   not   slide   out,   remove plunger, coat tip with test oil, and repeat test. (17) If plunger sticks because of misalignment, loosen cup retainer, rotate cup  1/4  turn,  and  retorque.    Repeat  as necessary. (18) Remove plunger from adapter and lubricate   plunger   with   test   oil.      Install spring on plunger and insert into adapter. (19) Test plunger in accordance with paragraphs a, b, and c above. (20) Install new screen (12) and clip (11). (21) Refer to the Operator/Crew and Organizational  Maintenance  manual  for replacement procedures. g. Installation, Assembly, and Operating Instructions for the Injector Leakage Tester (See figure 13-17). (1)   The   following   facilities   are   necessary   for installation of the injector leakage tester: (a)   A clean area with good lighting.  An enclosed fuel systems area is preferred. When a tightly enclosed room is used, due to the extreme sensitivity of the air flowmeter, the   ball   float   will   fluctuate   slightly   during opening and closing of the door.  Other than not being able to obtain an accurate reading during  actual  swinging  of  the  door,  such  a room     has     no     adverse     effects     and     is desirable. (b)   A  work  bench  of  standard  height  which  is  not subject  to  pounding  or  other  heavy  work.    The bench   must   not   have   a   vise   or   other   shop equipment which is generally subject to impacts. (c)   An   air   supply   of   80   psi   (552   kPa)   minimum pressure.    The  air  line  to  the  injector  leakage tester    should    not    be    in    a    location    where intermittent.      pressure   drops   are   caused   by actuation of other shop air equipment. (2)   Mount   rubber   isolation   pads   to   feet   with capscrews provided. (3)   Mount  feet  to  panel.    When  feet-to-panel capscrews are snug, panel must be installed in    a    vertical    position    to    ensure    proper operation of air flowmeter. (4)   Fill air cylinder oiler 1/3 to 1/2 full of injector test  oil.    Make  sure  sealing  ring  is  in  place before tightening bowl retainer. (5)   Fill bubble checker bowl with injector test oil to oil level marker.  To more easily fill bowl to specified level, it may be filled approximately  3/4  full  and  then  drained  to proper   level   through   valve   at   bottom   of bowl. 13-14