Mody Pumps G 706 T_316SS - Manual (Page 7)

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. NEW BEARINGS MUST BE INSTALLED WITH SPECIAL
HIGH TEMPERATURE GREASE.
ELECTRICAL INFORMATION .
MOTORS ARE DESIGNED TO OPERATE ON SINGLE VOLTAGE AND FREQUENCY. MAXIMUM
DEVIATION IN VOLTAGE ALLOWED IS +/-6% AND FREQUENCY +/-3%. CHECK NAME PLATE FOR
OPERATING VOLTAGE AND FREQUENCY.
DISMANTLING AND OVERHAULING.
GENERAL OVERHAUL AND OIL CHECK. (REF. DRGS. # DW/207/00(SHEET 1 & 2)
1. ALWAYS REPLACE O-RINGS WITH NEW ONES WHENEVER DISMANTLING AND RE-ASSEMBLING
A PUMP. NEVER RE-USE OLD O-RINGS.
2. ALWAYS ISOLATE THE UNIT BEFORE REMOVING THE CABLE GLAND (56). BE CAREFUL
WITH O-RINGS (64,65,66) AND SEALING SURFACES. PROTECT THE CHAMBER AGAINST RAIN
AND MOISTURE.
3. DISCONNECT STATOR LEADS. SNIP OFF LEAD WIRE CONNECTORS AND UNSCREW EARTHING
SCREW (42). LOOSEN SCREWS (43), REMOVE CABLE GROMMET (58) AND CABLE LEAD
GROMMET (67). CLEAN THE SEALING SURFACES CAREFULLY AND GREASE THE NEW O-RINGS
BEFORE FITTING THE SAME. DO NOT USE THE OLD O-RINGS.
4. LOOSEN HX. BOLTS AND LOCK WASHERS (28,29) AND REMOVE BASE PLATE (27),
STRAINER (26), DIFFUSER CENTER (23), AND DIFFUSER HOLDER (22). PRY OUT DIFFUSER
RING (21) FROM OUTER CASING (13). THE DRAWING SHOWS THESE DETAILS. CHECK BY
HAND THAT THE ROTOR SHAFT IS NOT JAMMED.
5. PLACE THE PUMP ON THE BOTTOM STUDS (19). TAP THE OUTER CASING (13) WITH
NYLON HAMMERS/MALLET TILL IT LOOSENS FROM THE TOP BRACKET (7). SEPARATE THE
OUTER CASING FROM THE TOP BRACKET BY EMPLOYING TWO SCREW DRIVERS AS LEVERS AND
PUSH THE OUTER CASING DOWNWARDS TILL IT STANDS ON THE FLOOR. LIFT THE UNIT BY
THE EYEBOLTS (4) CLEAR OFF THE OUTER CASING.
6. THE SEAL CHAMBER CONTAINS APPROX. 5 LITERS OF OIL. THE LEVEL AND CONDITION
OF THE OIL SHOULD BE CHECKED EVERY SIX MONTHS. UNSCREW THE OIL PLUGS (76) AND
POUR OUT SOME OIL. NOTE THAT THE OIL GETS A SLIGHTLY DARKER SHADE, BUT THIS IS
NORMAL AND IS NO CAUSE FOR WORRY. IF THE OIL IS EMULSIFIED BY WATER, THE SEALS
HAVE WORN OUT AND MUST BE REMOVED FROM THE ROTOR FOR FURTHER ACTION.
7. LAY DOWN THE PUMP AND REMOVE THE REMAINING PARTS. UNSCREW NUT (33) AND
REMOVE LOCK WASHER (34) (USE IMPELLER SPANNER (T7007/8) TO HOLD IMPELLER WHILE
UNSCREWING NUTS) AND SLIDE OFF IMPELLER (36) FROM SHAFT. THEN REMOVE TRIMMING
SPACERS (37) AND SAND GUARD (72). THE SAND GUARD IS LIGHTLY PRESS FITTED IN THE
SEAL HOUSING (38). THIS CAN BE REMOVED BY MEANS OF A SCREWDRIVER.
8. UNSCREW NUTS (24,25) AND FOUR STUDS (19) AND REMOVE WEAR PLATE (39).THIS CAN
BE EASILY DONE BY INSERTING TWO SCREWDRIVERS BETWEEN WEAR PLATE AND LOWER
BRACKET(17) AND PRYING THE WEAR PLATE LOOSE. ALL THE PUMP PARTS HAVE BEEN
DISMANTLED. REPLACE WORN PARTS.