TM 5-3825-226-24 NOTE:    If  locknut  (22)  on  the  3P2226 Collet    is    too    tight,    it    can    cause interference in the operation of the dial indicator. 6V190 CLAMP INSTALLED 24.  Shaft. 25.  6V190 Clamp. 11. Put 6V190 Clamp (25) in the position shown, next to  the  transfer  pump  end.    Clamp  (25)  pushes shaft (24) down against the bottom of its bearing. The  other  end  of  shaft  (24)  is  held  down  against its bearing by 3P 1546 Calibration Pin (7) which is held by 8S7271 Screw (11).  The combination of forces  from  clamp  (25)  and  calibration  pin  (7)  is necessary    to    hold    shaft    (24)    in    its    normal operating  position  against  the  lifting  force  from the spring in calibration pump (1). DIAL INDICATOR POSITION 4. 3P1568 Dial Indicator with 3P2226 Collet.  25. Clamp. NOTE:  When checking pumps on the "slave" side [side opposite from governor control lever (16)], put clamp (25)  on  both  ends  of  sleeve  shaft  as shown. 12. Put  dial  indicator  (4)  on  the  calibration  pump  (I) as  shown.    Hold  it  tightly  in  place.    Move  shaft (24) toward the governor end to remove end play. To  remove  any  clearance  in  the  linkage,  lift  the crossover  lever  dowel  and  rapidly  let  it  go.    Do this  several  times.    Then  look  at  the  reading  on the dial indicator (4). INSTALLING CLAMP ON "SLAVE" SIDE 25.  6V190 Clamps. 13.  If the dial indicator (4) reading is more than ±  0.050 mm  from  "0.000"  (outside  the  TOTAL  TOLERANCE),  do steps 17 through 20, ADJUSTING FUEL PUMP CALIBRATION. DIAL INDICATOR READING Desired reading for all pumps is "0.000" Maximum    permissible    tolerance    for    pump readings    In    any    FUEL    INJECTION    PUMP GROUP  is  0.100  mm  (-0.050  to  +0.050  mm  on dial indicator). Maximum    permissible    differences    between any two pumps in the same FUEL INJECTION PUMP GROUP Is 0.050 mm. TOTAL    TOLERANCE    shows    the    maximum permissible  range  of  pointer  positions  which are  acceptable.    It  any  reading  is  outside  the range of TOTAL TOLERANCE, do ADJUSTING FUEL PUMP CALIBRATION for all pumps. BAND  is  an  example  only.    It  shows  a  0.050 mm  range.    This  range  shows  the  maximum permissible difference between any two readings    for    all    the    pumps.        If    any    two readings  are  farther  apart  than  the  0.050  mm range, do ADJUSTING FUEL PUMP CALIBRATION for all pumps. If the dial indicator (4) reading is near either end of  the  TOTAL    TOLERANCE,    check    another  pump.    If the next reading is outside the TOTAL TOLERANCE or if the two readings have a difference of 0.050 mm or 2-61