Mody Pumps MHC4, 7.5HP - Manual (Page 3)

PURPOSE:
THE PUMP HAS BASICALLY BEEN DESIGNED AS A HIGH CHROME UNIT WITH AN OPTIONAL
AGITATOR TO PUMP OUT FLOODED INSTALLATIONS OR ANY CONDITIONS THAT NEED
DEWATERING OF UNWANTED FLUIDS. THE PUMP HAS BEEN DESIGNED TO HANDLE WATER
CONTAMINATED WITH OIL AS WELL AS ABRASIVE PARTICLES NORMALLY ASSOCIATED WITH
RAW WATER. THE MAXIMUM SIZE OF PARTICLES THAT CAN BE HANDLED IS APPROX.
1.4”.
THE MAXIMUM SPECIFIC GRAVITY OF THE PUMPED FLUID SHOULD NOT EXCEED 1.1.
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.