Mody Pumps G 502 T Operating Instructions, Installation & Maintenance Manual Download Page 5

 
MAINS VOLTAGE AT SITE                                                HRC FUSE RECOMMENDED 

 
220 VOLTS / 3 PHASE                                20 AMPERES 
380 VOLTS / 3 PHASE                                16 AMPERES    
460 VOLTS / 3 PHASE                                15 AMPERES  
 

 
FAULT FINDING IN THE UNIT. 

 

TROUBLE GUIDE                  CAUSE                                      REMEDY 

 
                        1.FUSES BLOWN.           1.REPLACE FUSES 
                        2.CABLE DAMAGED          2.SHORTEN/REPLACE CABLE 

PUMP DOES NOT START.

    3.NO POWER.              3.CHECK POWER SUPPLY. 

                        4.BLOCKED IMPELLER.      4.CLEAN BOTTOM PARTS. 
                        6.STATOR WINDING BURNT.  6.REPLACE STATOR/REWIND 
 

 
                        1.BLOCKED IMPELLER.      1.CLEAN BOTTOM PARTS. 
                        2.IMPELLER ROT.WRONG     2.SHIFT TWO PHASE CONN. 

PUMP STARTS BUT STOPS

.

  

3.CONNECTED FOR WRONG    3.CHECK & RECONNECT. 

                        VOLTAGE. 
                        4.VOLTAGE LOW/HIGH       4.CONTACT POWER CO. 
                        5.CLOGGED STRAINER       5.CLEAN STRAINER 
                        6.PUMP RUNNING DRY       6.SWITCH OFF POWER 
                        7.WATER TOO WARM         7.SWITCH OFF POWER 
                        (ABOVE 60 DEGREES C) 
 

 
                        1.IMPELLER ROT.BACKWARD. 1.SHIFT TWO PHASE CONN. 
                        2.PUMP WORN DOWN.        2.REPLACE WEAR PARTS  

PUMP GIVES TOO LITTLE

   3.LONG HOSE AND DIAMETER 3.CHECK PRESSURE LOSSES 

OUTPUT 

                 TOO SMALL. 

                        4.PRESSURE HEAD TOO HIGH 4.USE PUMPS IN TANDEM. 
                        5.DISCHARGE HOSE TORN    5.USE NEW HOSE 
                        6.LEAKING/CRACKED OUTLET 6.REPL.OUTLET/GASKET. 
 

 
 

TECHNICAL DESCRIPTION. 

 
THE MODY SUBMERSIBLE  PUMP IS IN ITSELF  A COMPLETE PUMPING STATION. BESIDES A 
POWER SUPPLY AND A DISCHARGE HOSE NO EXTRA EQUIPMENT IS REQUIRED. THE  
COMPLETE PUMPSET IS IN A MODULAR CONSTRUCTION ENSURING GOOD AND SIMPLE 
SERVICEABILITY. THE MAJOR DESIGN FEATURES ARE AS UNDER: 

 
 

THE MOTOR 

 
A RUGGED ALUMINUM DIE CAST/COPPER  ROTOR  DYNAMICALLY BALANCED TO GRADE 2.5 
ACCURACY OF ISO 942.A STAINLESS STEEL SHAFT RUNNING IN TWO BALL BEARINGS. 
INSULATION CLASS "F" (155 DEGREES CELSIUS).END WINDINGS DULY EPOXY COATED TO 
PREVENT DETERIORATION OF INSULATION EVEN IN EXTREMELY HUMID CONDITIONS. WINDING 
WIRE IS DUAL COATED SUITABLE FOR "H" CLASS INSULATION. 
 

Summary of Contents for G 502 T

Page 1: ...TING INSTRUCTIONS INSTALLATION MAINTENANCE MANUAL INCLUDING SPARE PARTS LIST Mody Pumps Inc 2166 Zeus Court Bakersfield CA 93308 Tel 661 392 7600 FAX 661 392 7601 EMAIL sales modypump com http www mod...

Page 2: ...e pump in its operating position so it does not tip over fall or slide 14 Keep away from impeller when power is connected 15 Submersible Pumps are not approved for use in swimming pools recreational w...

Page 3: ...SEAL FACES IRRESPECTIVE OF THE DEPTH SETTING OF THE PUMP OR THE HEAD AGAINST WHICH THE PUMP IS OPERATING IN mody SUBMERSIBLE SUMP PUMPS ALL WEAR PARTS ARE RUBBER LINED COVERED AND ARE READILY REPLACE...

Page 4: ...INKS AND SHARP BENDS 6 DO NOT LIFT OR PULL THE PUMP UNDER ANY CIRCUMSTANCES BY MEANS OF THE CABLE THE PUMP MUST BE LOWERED LIFTED FROM THE SPACE TO BE PUMPED BY USING A LIFTING ROPE ATTACHED TO THE HA...

Page 5: ...RD 1 SHIFT TWO PHASE CONN 2 PUMP WORN DOWN 2 REPLACE WEAR PARTS PUMP GIVES TOO LITTLE 3 LONG HOSE AND DIAMETER 3 CHECK PRESSURE LOSSES OUTPUT TOO SMALL 4 PRESSURE HEAD TOO HIGH 4 USE PUMPS IN TANDEM 5...

Page 6: ...DAM ARRANGEMENT IS PROVIDED WHICH SEALS THE INDIVIDUAL CORES OF THE CABLE THIS FEATURE IS UNIQUE AND IS ESSENTIAL TO PREVENT WATER SEEPING THROUGH THE CORES OF THE CABLE INTO THE CONTACTOR CHAMBER IN...

Page 7: ...SAND GUARD 69 FROM THE SEAL HOUSING 28 6 UNSCREW NUTS 18 AND FOUR STUDS 17 AND REMOVE WEAR PLATE 29 THIS CAN BE EASILY DONE BY INSERTING TWO SCREWDRIVERS BETWEEN WEAR PLATE AND LOWER BRACKET 15 AND P...

Page 8: ...ND ALSO DAMAGE THE BEARINGS AND FIT CIRCLIPS ON TOP AND BOTTOM GROOVES ON SHAFT IF THE BEARINGS ARE SHRINK FITTED ON THE SHAFT HEAT THE BEARINGS IN OIL TO A MAXIMUM TEMPERATURE OF 120 DEGREES CELSIUS...

Page 9: ...RING 12 SLIDE ON WEAR PLATE AGAINST LOWER BEARING BRACKET AND TIGHTEN THE SAME FIT KEY 25 ON THE SHAFT AND SLIDE ON IMPELLER CLEARANCES BETWEEN IMPELLER AND WEAR PLATE CAN BE ADJUSTED BY MEANS OF THE...

Page 10: ...2 SETS 4 CABLE GROMMET 260 013 66 2 NOS 5 CABLE LEAD GROMMET 260 014 66 2 NOS 6 UPPER BEARING 020 005 07 1 NO 7 LOWER BEARING 020 011 07 1 NO 8 STRAINER 640 012 11 1 NO 9 IMPELLER G 502T 60Hz 300 033...

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Page 14: ...rrected for field performance Any additional guarantees in the nature of performance specifications must be in writing and such writing must be signed by our authorized representative Due to inaccurac...

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