Mody Pumps M 100 T_316SS SERIES - Manual (Page 7)

DISMANTLING (REFER DRG. DW/041/00-- SHEET 1 & 2).
PLEASE NOTE THE DIFFERENT DRAWING NUMBERS FOR VARIOUS MODELS IN THE SERIES.
• BACK OFF THE TWO DISCHARGE OUTLET NUTS (18,50) AND LIFT OFF THE OUTLET (23).
PUT ASIDE THE OUTLET GASKET (36).
• BACK OFF FOUR NOS. NUTS (3,18) AND REMOVE THE STRAINER (21).
• BACK OFF FOUR NOS. NUTS (18) FROM THE STUD BOLT ASSY. (15) HOLDING THE
DIFFUSER (20) AND REMOVE THE DIFFUSER.
• PULL OUT OUTER CASING (7) AND KEEP ASIDE.
• LOCK IMPELLER (19) BY MEANS OF IMPELLER LOCKING SPANNER OR PRYBAR TO PREVENT
ROTATION AND UNSCREW IMPELLER DOME NUT (22). SLIDE IMPELLER OFF SHAFT. THE
RUBBER SLINGER WILL COME OFF WITH THE IMPELLER. (IF TOOL IS NOT AVAILABLE,
YOU MAY USE A GOOD STRONG SCREWDRIVER FOR LOCKING THE IMPELLER)
• REMOVE TRIMMING SPACERS (24) AND KEEP ASIDE.
• UNSCREW FOUR NOS. STUD BOLT ASSEMBLY (15) AND REMOVE WEAR PLATE (17).
• UNSCREW THE PHILLIPS SCREWS (56) HOLDING THE SAND GUARD (59) FROM SEAL
HOUSING (16).
• UNSCREW OIL PLUG (25) AND REMOVE "O" RING (26) FROM CAVITY. DRAIN OUT THE
OIL FROM THE OIL CHAMBER. THE CHAMBER CONTAINS APPROX. 150 ML OF OIL. CHECK
IF THE OIL IS EMULSIFIED. IF SO, THE MECHANICAL SEAL IS WORN OUT AND NEEDS
TO BE REPLACED. IF NO EMULSIFICATION HAS TAKEN PLACE THE MECHANICAL SEAL IS
O.K. AND THE OIL CAN BE RE-USED.
• REMOVE CAP FOR CIRCLIP (58), CIRCLIP (55) AND SLIDE OUT COMPLETE MECHANICAL
SEAL FROM THE ROTOR SHAFT. BE VERY CAREFUL WITH THE RUBBER BELLOWS AND THE
SILICON CARBIDE SEAL FACE. LEAVE THE SILICON CARBIDE SEAT IN THE HOUSING
UNLESS IT IS TO BE REPLACED.
• BY MEANS OF TWO SCREWDRIVERS LEVER OUT THE SEAL HOUSING FROM THE LOWER
BEARING BRACKET (14)
• THE COMPLETE ROTOR WITH THE LOWER BEARING BRACKET AND BEARING CAN BE PULLED
OUT OF THE STATOR CASING. USE TWO SCREWDRIVERS BETWEEN THE LOWER BEARING
BRACKET AND THE STATOR CASING (8) AND PULL OUT THE COMPLETE ASSEMBLY.
• REMOVE THE UPPER SEAL IN THE SAME MANNER.
• UNSCREW HEX. BOLT (11) AND LOOSEN BEARING COVER (12). THE ROTOR COMPLETE
WITH LOWER BEARING (13), CAN BE REMOVED FROM THE LOWER BEARING BRACKET.
• THE LOWER BEARING CAN NOW BE PRESSED OUT IF IT NEEDS TO BE REPLACED. EXAMINE
UPPER BEARING FOR RADIAL OR AXIAL PLAY AND REPLACE IF NECESSARY.
• IF STATOR CHECKS OUT O.K. ELECTRICALLY AND THE CABLE IS O.K. DO NOT REMOVE
THE TOP BRACKET FROM THE STATOR CASING. IF STATOR IS TO BE REWOUND THEN IT
IS ESSENTIAL TO DISMANTLE GLAND ASSEMBLY.
• UNSCREW NUTS (41,42) AND REMOVE CABLE CLAMP (40). UNSCREW NUTS (18) AND PRY
OFF CABLE GLAND (39). THE CABLE GROMMET (38) WILL COME OUT WITH THE GLAND.
ALWAYS REPLACE CABLE GROMMET. REMOVE GLAND SPACER (37) AND PRY OUT CABLE
GLAND BASE (31). REMOVE LEAD GROMMET (32) AND REPLACE. LOOSEN CABLE WIRES SO
THAT ENOUGH SLACK EXISTS SO THAT THE TOP BRACKET CAN BE DISASSEMBLED.
• UNSCREW BOLTS (2) AND REMOVE HANDLE. THE TOP BRACKET (4) CAN BE REMOVED BY
INSERTING TWO SCREWDRIVERS BETWEEN THE TOP BRACKET AND THE OUTER CASING AND
PRYING THE SAME OUT OR TAPPING THE OUTLET WITH A RUBBER MALLET. DISCARD "O"
RINGS.