Xylem IMVS R01 Model VS Vertical Industrial Turbine Pumps - Manual (Page 9)

9
2. It is recommended that maintenance personnel be-
come thoroughly familiar with the VS pump before
performing any removal of the components. Consult
the manufacturer's instructions for detailed disassem-
bly information for the motor.
A. Remove the electrical connection at the conduit box
and tag electrical leads at the motor.
BEFORE OPENING THE CONDUIT
BOX OF AN ELECTRICAL MOTOR,
BE SURE THE CURRENT TO THE MOTOR IS SHUT
OFF. SEVERE INJURY TO PERSONNEL COULD
RESULT IF CONTACT WITH LIVE MOTOR LEADS
IS MADE.
LOCK OUT SHOULD BE INSTALLED BEFORE ANY
ELECTRICAL WORK IS PERFORMED.
NOTE: MATCH-MARK PARTS IN SEQUENCE OF
DISASSEMBLY TO AID IN THE REASSEM-
BLY PROCEDURE.
B. Disconnect the discharge piping from the well head.
DO NOT WORK UNDER A HEAVY
SUSPENDED OBJECT UNLESS THERE
IS A POSITIVE SUPPORT UNDER IT WHICH WILL
PROTECT PERSONNEL SHOULD A HOIST OR
SLING FAIL.
3. PUMP DISASSEMBLY
In the following pump disassembly procedures, refer-
ences are made to installation sections of this manual.
These sections will aid in the disassembly of the
pump.
A. Disconnect well head and begin removal of column
sections. Refer to Section 5, #7.
B. For removal of bowl/motor assembly, hoist the
bowl/motor assembly from the well, using eleva-
tor clamps. Hoist in the same manner as for the
column. For the keyed motor shaft, loosen the
setscrews on the motor end of the shaft coupling.
Remove the motor lead from the cable guard.
Disassemble the bowl assembly from the motor by
removing the connecting bolts at the flange joint.
For the short assembly, laying the bowl/motor as-
sembly on the ground to perform these works. For
the long or large size assembly, it is recommended
to perform these works while the assembly is in the
vertical position. Refer to Section 4, #3. Proceed to
disassemble the bowl assembly as follows.
Figure 2 – Bowl and Motor Assembly
WARNING
WARNING
ITEM NAME MATERIAL GPI ASTM
666 Bowl Discharge Iron 1003 A48 CL30
669 Bowl - Intermediate Cast Iron - Glassed 6911 A48 CL30
672 Bearing - Intermediate Bowl Bronze 1109 B584 C90300
672A Bearing Discharge Bronze 1109 B584 C90300
690 Bearing Subadapter Bronze 1109 B584 C90300
760 Capscrews - Grade 8 Steel 2298 SAE J429 GR8
758 Capscrews SST 304 2228 A276 S30400
730 Coupling Motor SST 416 2218 A582 S41600
715 Guard Cable SST 304 3215 A240 S30400
673 Impeller Bronze 1102 B584 C87600
781 Screen Suction SST 304 3215 A240 S30400
660 Shaft SST 416 2227 A582 S41600
671 Subadapter Duct Iron 1018 A536 65-45-12
677 Taperlock Steel 2242 A108 G10180
789 Washer Upthrust HDPE 6266 Polyethylene
735 Pipe Plug Iron 1046 A197