9. CHECK BOTH UPPER AND LOWER BEARINGS (9 & 68) FOR ANY RADIAL OR AXIAL PLAY OR
ANY ABNORMAL NOISE WHILE SPINNING THE SAME. CHECK FOR ANY LEAKAGE OF GREASE
THROUGH THE SHIELD OF THE BEARING. IF BEARING SEEMS WORN OUT OR ANY GREASE
LEAKAGE IS OBSERVED, REPLACE BEARING. (DO NOT USE ANY STANDARD BEARING PROCURED
FROM THE MARKET. THE PUMPS USE A SPECIAL BEARING WHICH IS PRE-FILLED WITH
SPECIAL HIGH TEMPERATURE GREASE WHICH ARE AVAILABLE FROM US READILY).
10. THE TOP BRACKET (6) IS HELD IN POSITION BY FOUR BOLTS (4) ON THE INNER
CASING. UNSCREW THE BOLTS AND REMOVE THE INNER CASING WITH THE HELP OF PULLER
FOR STATOR (T8003). ALTERNATIVELY TWO SCREWDRIVERS MAY BE USED TO PRY THE TOP
BRACKET FROM THE STATOR.
11. THE STATOR IS SHRINK-FITTED IN THE INNER CASING AND IS SUPPLIED WITH THE
O-RINGS (14) AS ONE UNIT. THE STATOR CAN NOW BE CHECKED FOR ANY ELECTRICAL
FAULTS.
RE-ASSEMBLY OF THE PUMPSET:
THE PUMP CAN BE RE-ASSEMBLED AS PER PROCEDURE GIVEN BELOW. PLEASE HOWEVER NOTE
THE FOLLOWING:
A) ALWAYS REPLACE NEW O-RINGS AND DISCARD OLD ONES.
B) REPLACE LOCK WASHER WHEN RE-ASSEMBLING.
1. THE CHECKED/REPAIRED STATOR IS KEPT UPRIGHT AND THE TOP BRACKET IS GUIDED
THROUGH THE FOUR BOLTS (4).
2. SLIDE BEARING COVER (13) ON ROTOR SHAFT.
3. FIT BEARINGS (IF REMOVED OR REPLACED) ON ROTOR SHAFT (USE EITHER A HAND
PRESS OR SHRINK THE SAME -- DO NOT HAMMER THE BEARINGS ON THE SHAFT-- YOU MAY
BEND THE SHAFT AND 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 AS A HIGHER
TEMPERATURE WILL LIQUEFY THE GREASE IN THE BEARING AND RENDER THE SAME
UNUSABLE).
4. SLIDE LOWER BEARING BRACKET (15) ON TO LOWER BEARING AND ALIGN FOUR NOS
HOLES ON BEARING COVER WITH THE TAPPED HOLES ON LOWER BEARING BRACKET. FIT THE
BOLTS (70) AND TIGHTEN BEARING COVER.
5. FIT COMPLETE ROTOR ASSEMBLY IN STATOR HOUSING GUIDING UPPER BEARING IN TOP
BRACKET BEARING SEAT. TIGHTEN FOUR CAP SCREWS (16). FIT UPPER TC SEAT IN LOWER
BEARING BRACKET (LIGHTLY OIL THE RUBBER SEAT CUP --ENSURE THE SEAT SITS SQUARE
IN THE BRACKET) AND SLIDE ON UPPER SEAL ASSEMBLY ON ROTOR SHAFT. (USE SEAL
ASSEMBLY MANDREL (T9006) TO ASSIST IN SLIDING BELLOWS ON TO THE SHAFT). LIGHTLY
OIL THE ROTOR SHAFT BEFORE PUSHING BELLOWS ON SHAFT. USE EXTREME CARE SO THAT
THE SEAL FACES ARE NOT DAMAGED. SLIDE ON RETAINER SPRING (61) AND FIT IN GROOVE
ON SHAFT.
6. PRESS HOME BY HAND LOWER SEAL SILICON CARBIDE SEAT INTO SEAL HOUSING (28).
LIGHTLY OIL RUBBER SEAT CUP BEFORE PRESSING IN CAVITY. THE SEAT MUST SIT SQUARE
IN THE HOUSING.
7. FIT SEAL HOUSING (38) INTO LOWER BRACKET AND TIGHTEN NUTS (65).
8. SLIDE ON LOWER SEAL ASSEMBLY ON SHAFT. APPLY LIGHT COAT OF OIL ON SHAFT
BEFORE SLIDING BELLOWS ON THE SAME. (USE SAME SEAL MANDREL AS USED FOR THE
UPPER SEAL TO SLIDE BELLOWS ON SHAFT). FIT RETAINER SPRING AS FOR THE UPPER
SEAL ASSEMBLY
9. INSTALL SAND GUARD (59) INTO SEAL HOUSING USING THE 4 CHEESE HEAD SCREWS.
(18 pages)
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