TM 10-4320-321-13&P FORM 5S2583 MODELS 2P121 THRU 2P128 & WP373 THRU 2P380 01615 Installation (Continued) assembly.   Tighten   screws   with   9/16   wrench   so   the adapter   seats   firmly   on   motor   mounting   face.   (See Figures 3 & 4.) Figure 3 Figure 4 Figure 5 Figure 6 5.    Slide  the  assembled  shaft  adapter  clamp (Ref.  No.  2)  to  within  1/8"  from  the  end  of  the shaft adapter (Ref. No. 3). Align the slot in the shaft   adapter   with   the   gap   between   the   two clamp  halves  and  tighten  the  two  socket  head capscrews (Ref. No. 1) with 3/16 hex key (allen wrench) (See Figures 3 & 5). 6. Loosen  the  3/8-16  x  1”   hex  capscrews  (Ref. No. 7) previously installed. Remove the 0.020" shim from the opening in the front of the casing (See Figure 6). Remove the screw (Rev. No. 7) and washer (Ref. No. 6) installed in the bottom hole of adapter and rethread it into the top hole in adapter (See Figure 4). 7. Thread two 3/8-16 x 1¼    hex capscrews (Ref. No.   22)   with   washers   (Rev.   No.   6)   into   two bottom  holes  in  adapter.  Install  mounting  foot (Ref.  No.  23)  with  the  longer  leg  towards  the rear  of  motor.  Tighten  all  four  hex  capscrews with 9/16" wrench (See Figure 3). 8. Turn   impeller   (Ref.   No.   14)   with   a   socket wrench on the impeller locknut (Ref. No. 16), to insure  the  impeller  turns  freely  (turn  clockwise only).  Impeller  nut  (Ref.  No.  16)  is  turned  CW to    tighten    down    the    impeller.    Pump    motor rotation is CCW facing front of pump. 9. Place  suction  plate  gasket  (Ref.  No.  18)  on casing  face.  Place  suction  plate  (Ref.  No.  19) on gasket and casing face with the inlet to the top   of   pump.   Thread   (7)   1/4-20   x   3/4   hex capscrews through plate into casing and tighten with 7/16" wrench (See Figure 3). 10.   Pump may now be returned to normal position and is ready for installation. PUMP INSTALLATION 1. Locate  the  pump  as  close  to  the  fluid  source as   possible   making   the   suction   line   as   short   as possible. CAUTION:    The    unit    should    be    located    where    motor    is protected   from   weather   and   extremes   of   heat,   cold   and humidity. 2. Mount the unit on a solid foundation. On fixed installations,   install   both   a   union   and   a   gate valve  (not  furnished)  on  the  discharge  side  of the     pump     for     service     convenience.     -To, facilitate priming, install a Tee in the discharge of the pump itself. Use the horizontal leg of the Tee  as  the  pump  discharge  and  place  a  pipe plug  in  vertical  leg.  This  plug  can  be  removed and installed easily for filling the casing with the liquid necessary for initial priming CAUTION: Do not use globe or other restricting type of valve at the discharge, as this would seriously restrict the capacity of the pump. 3. Attach  suction  piping  to  the  suction  inlet  and discharge   pipe   to   the   discharge   outlet.   The suction   line   should   be   positioned   such   that there is a continual upward slope from the fluid source   to   the   pump.   Avoid   using   loops   or sections  of  pipe  or  fittings  which  might  permit air to become trapped. -5-