GENERAL PURPOSE PUMPS 32 AND 432 SERIES - LARGE MAINTENANCE AND REPAIR INSTRUCTIONS FIGURE 11  EXPLODED VIEW MODEL LL32 PUMP ITEM NAME OF PART ITEM NAME OF PART 1 Packing Gland 15 Nut for Flanges 2 Packing 16 Casing 3 Lantern Ring 17 Rotor and Shaft 4 Packing Retainer Washer 18 Idler and Bushing 5 Bushing for Rotor Bearing Sleeve 19 Idler Bushing 6 Rotor Bearing Sleeve and Bushing 20 Head Gasket 7 Packing Gland Nut 21 Idler Pin 8 Packing Gland Stud 22 Head and Idler Pin 9 Grease Fitting 23 Capscrew for Head 10 Capscrew for Rotor Bearing Sleeve 24 Grease Fitting 11 Gasket for Rotor Bearing Sleeve 25 Relief Valve Gasket 12 Pipe Plug 26 Relief Valve 13 Pipe Flange Gasket 27 Capscrew for Valve 14 Capscrew for Flanges Disassembly 1.      Remove   the   head   from   the   pump   If   pump   is furnished, with a relief valve it need not be removed from head or disassembled at this point. CAUTION:    DO  NOT  ALLOW  THE  IDLER  TO  FALL FROM THE IDLER PIN.  TILTING THE HEAD UP AS IT IS REMOVED WILL PREVENT THIS OCCURRENCE.      AVOID   DAMAGING   THE   HEAD GASKET IF POSSIBLE. 2.    Remove  the  idler  and  bushing  assembly  from  the idler pin.  Replace all excessively' worn parts.  See Step #8. 3.  Remove the packing gland. 4.  If you have a mechanical seal pump, remove the end cap and the mechanical seal is exposed 5.  Remove the mechanical seal by sliding off the end of the shaft.  Loosen the setscrew in the set collar and remove it. CAUTION:    REMOVE  THE  SNAP  RING  FROM  THE SHAFT     USED     IN     SOME     MECHANICAL     SEAL PUMPS   BEFORE   REMOVING   THE   ROTOR   AND SHAFT. 6.  Careful remove the rotor and shaft from the pump. CAUTION:    AVOID  DAMAGING  THE  CASING  OR ROTOR BEARING SLEEVE BUSHING. 7.  THRUST WASHERS-Rotor  thrust Rasher and rotor bearing sleeve thrust washer-used in Q.M and N size pumps  should  be  removed,  examined  for  excessive wear    and    replaced    if    necessary.        These    thrust washers are located on the hub of the rotor and the casing end of rotor bearing sleeve. 8.  If it Is necessary to replace the casing, rotor bearing sleeve  or  idler  bushing  and  or  repack    the  pump, remove the old packing and lantern ring and packing retainer  washer.   Some  pumps  don't  have  a  lantern ring. If the casing, rotor bearing sleeve or idler bushing shows signs of wear It should be replaced.  If it is necessary to install   a   new   carbon   graphite   bushing,   extreme   care should  be  taken  to  prevent  breaking,  as  it  is  a  brittle material and easily cracked.  If cracked this bushing will quickly disintegrate.  An arbor press Viking Pump Division, Houdaille Industries, Inc. Cedar Falls, Iowa 50613 U.S.A.