TM5-6115-593-34 NAVFAC P-8-631-34 TO-35C2-3-463-2 (6)   Use a vise-grip wrench while connecting air supply     line     to     prevent     disturbance     to threads. (7)   Install T-handle clamping mechanism backed   out   approximately   1/2   thread   turn from snug position. (8)   Install    retraction    handle    and    lock    into- position with jam nut. (9)   Set pressure regulator at 60 psi (414 kPa). (10) Operate air cylinder a few times and set final pressure at precisely 60 psi (414 kPa). The air pressure must be held at 60 psi (414 kPa) during all tests. (11) The  velocity  of  air  cylinder  piston  rod may be adjusted as desired with small valve at rear of panel.  Loosen locknut and screw valve  stem  in  to  decrease  piston  speed  or back   screw   out   to   increase   piston   speed. Lock   the   nut   on   the   stem   when   desired piston speed is attained. (12) With   retraction   lever   in   "A"   position, install load cell and clamp into position. (13) Adjust knurled knob until load cell reads 200  psi  (1379  kPa).    The  psi  (kPa)  reading on  load  cell  is  a  direct  reading  in  pounds (kg) load, since load cell piston area equals 1 square inch (6.45 sq cm).  Adjust knurled knob   to   obtain   200   lbs.      (90.7   kg)   load during several clamping cycles. (14) With load cell clamped at 200 lbs.  (90.7 kg) load, use the feeler gauge to adjust locknuts into position and tighten. Clamping mechanism should be checked daily with load cell and locknuts adjusted if necessary, h. Installation, Assembly, and Operating Instructions  for  the  Spray  Angle  Tester.    The spray angle tester (figure 13-18) is used with the injector    test    stand    which    is    described    in paragraph i. LEGEND 1. Gauge 7. Load cell 2. Air cylinder 8. Pressure 3. Injector regulator 4. T-handle clamp 9. Cylinder actu- 5. Retraction ation valve lever 10. Bubble checker 6. Feeler gauge 11. Flowmeter Figure 13-17.  Injection Leakage Tester (1)   Locate  Spray  angle  tester  on  or  near  the injector test stand so injector inlet connection of test stand will reach injector to be  spray  checked.    Use  injector  test  oil  or fuel oil to perform test. 13-35