Mody Pumps MHC6, 15HP_20HP - Manual (Page 4)

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 "H" (180 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.
THE SEAL CHAMBER
THE HEART OF THE MODY PUMP. DOUBLE MECHANICAL SILICON CARBIDE V/S SILICON
CARBIDE SEAL FACES - SECONDARY SEALS OF HNBR RUBBER AND METAL PARTS IN
STAINLESS STEEL, RUNNING IN AN OIL BATH, ENCLOSED IN A PRESSURE COMPENSATING
RUBBER OIL CHAMBER - CREATES THE ULTIMATE SEAL SOLUTION. THE DESIGN OPTIMIZES
SEAL LIFE AND ALLOWS FOR SIX MONTHLY (2500 HOURS) SERVICE INTERVALS.
BEARINGS:
SINGLE ROW DEEP GROOVE UPPER BALL BEARINGS SEALED FOR LIFE WITH SPECIAL HIGH
TEMPERATURE BEARING GREASE REQUIRING NO PERIODIC MAINTENANCE WHATSOEVER.
ANGULAR CONTACT LOWER BEARINGS.
THE HYDRAULIC ELEMENTS :
28% HI-CHROME IMPELLER, SUCTION COVER, VOLUTE AND WEAR PLATE PROVIDE THE
HIGHEST LEVEL OF ABRASION RESISTANCE FOR SLURRY PUMPING.
CABLE GLAND ASSEMBLY. (REFER DRG.)
THE PUMP IS SUPPLIED WITH 25 FEET CABLE AS STANDARD. THE CABLE IS A 4 CORE EPR
SHEATHED AND INSULATED CABLE CONFORMING TO INTERNATIONAL STANDARDS. THE CABLE
IS WATERPROOF AND CAN BE COMPLETELY SUBMERGED IN WATER. THE CABLE IS TERMINATED
IN THE PUMP AT THE CABLE GLAND. THE GLAND ASSEMBLY SEALS THE CABLE ON THE
OUTSIDE SHEATH AS WELL AS A WATER 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 THE EVENT OF A CUT CABLE. THE CABLE IS ALSO ANCHORED TO THE PUMP TOP COVER
BY MEANS OF A CABLE CLAMP MADE OF STAINLESS STEEL. THIS IS ESSENTIAL TO ENSURE
THAT THERE IS NO UNDUE STRAIN ON THE CABLE IF THE PUMP IS PULLED OR LOWERED
INADVERTENTLY BY MEANS OF THE CABLE. COMPLETE DETAILS OF THE CABLE GLAND
ASSEMBLY ARE SHOWN IN THE DRAWING.
NON REPAIRABLE ITEMS
1. ALL "O" RINGS TO BE REPLACED WHENEVER PARTS ARE DISMANTLED.
2. SEAL ELASTOMER PARTS SHOULD NEVER BE RE-USED AFTER DIS-ASSEMBLY.
3. DO NOT REFILL BEARING GREASE. ALWAYS REPLACE COMPLETE NEW BEARING WITH
SPECIAL HIGH TEMPERATURE GREASE.
OIL SPECIFICATIONS
USE NON-CONDUCTING, NON-FOAMING OIL ONLY
A) H.P. ENKLO OIL 46/48
B) SHELL TELLUS 29.
C) CHEVRON SUPERLA WHITE # 9