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FIGURE 5.   Location of swashplate assembly in pump housing.
ORDERING INFORMATION - TM-55-1930-209-14P-6_246

TM-55-1930-209-14P-6 Water Purification Barges (NSN 1930-01-234-2165) Chlorination System Manual
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MOUNTING THE NEW HARDWARE •1. Re-check   the   series   number   on   the   control feedback link to ensure that it is compatible with the  pump.    If  the  control  is  an  MCV106AX9XX (i.e.,  control  less  linkage  assembly),  follow  the procedure outlined below to install the linkage: A. Unscrew the bushing, using care not to damage its O-ring.  See Figure 6. B. Install   the   new   linkage   assembly shaft through the swashplate feedback shaft hole.  Place the ball in the crosslink ball cavity. C. Lubricate     the     shaft     O-ring     and replace  the  bushing  over  the  shaft. Torque   to   the   body   (10-15   foot- pounds)  so  that  the  feedback  shaft extends through the bushing. D. Install    the    retaining    ring    in    the groove on the shaft. •2. Align one end of the replacement drag link with the holes in the swashplate link arms. •3. Insert  the  press  fit  pin  through  the  case  drain port   to   trap   the   drag   link   in   the   swashplate clevis.    It  will  be  necessary  to  tap  the  pin  into place  until  the  head  of  the  pin  is  flush  to  the clevis. •4. Install  the  retaining  ring  by  forcing  it  onto  the tapered   end   of   the   pin   until   it   locks   into   the recess on the pin shaft.  Again, use caution not to drop any components into the pump housing. •5. One .042.inch diameter orifice must be installed in   the   supply   passage   on   pressure   override- compatible valves.  (See Ordering Information.) For all others, a .042-inch diameter orifice may be  installed  in  the  supply  passage  if  reduced swashplate response is desired. •6. Engage  the  pin  on  the  control  in  the  drag  link and   swing   the   control   into   place   against   the pump housing.  The drag link should be on the cylinder block side of the swashplate.  Install the seven   mounting   screws   and   tighten   to   10-11 foot-pounds of torque. •7. Connect   the   pipe   or   tubing   from   the   control handle  into  the  C1  and  C2  ports  (9/16-18  UNF threads per SAE J514).  Phasing of the HDC is such that a pressure rise at the C2 port causes a pressure  rise  at  the  A  output  port  of  the  pump, given     a     clockwise pump     prime     mover rotation as viewed into the input shaft. PUMP NEUTRAL ADJUSTMENT USE THE FOLLOWING PROCEDURE TO BRING THE PUMP   TO   NEUTRAL   ONCE   THE   HYDRAULIC   DIS- PLACEMENT CONTROL HAS BEEN MOUNTED. •1. Install a 300 psi gauge into  the charge pressure gauge port on the pump.  See Figure 7. •2. Using  a  9/16-inch  wrench,  loosen  the  hex  lock nut on the null adjustment screw.  See Figure 1. • 3. Set the hydraulic control handle to neutral, • 4. Start the prime mover and run at low idle. • 5. Warm   the   system   up   for   several   minutes   to bleed air. • 6. Slowly increase the prime mover speed to rated rpm. FIGURE 7.   Location of pump ports. PUMP NEUTRAL ADJUSTMENT (continued page 7) Sundstrand Mobile Controls 95-8972 6







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