Flowserve Byron Jackson Type M - Manual (Page 45)

® Byron Jackson Double Mechanical Seal Submersible Pumping Unit • 1042.293/9 • June 04
Page 45 of 68
4.5 Uninstallation
4.5.1 Safety instructions
DANGER
Before starting any installation work
or removing any parts of the pump-
ing unit, read Chapter 1.6 "Safety",
Page 6.
Tighten all screws in accordance
with Chapter 12.3 "Tightening
torques".
DANGER
If the area was designated a hazard-
ous location, refer to applicable
safety procedures for safe handling
of tools, equipment, and test instru-
ments.
CAUTION If the pumping unit is equipped with
a non-return valve without load re-
lieving holes, the pumping unit
weight with ascending pipeline und
the water column contained within it
must be lifted during removal!
If the non-return valve is provided
with load relieving hoIes, the weight
of the water column does not apply.
4.5.2 Uninstallation
1. Stop the pumping unit operation at the control
panel.
2. Measure the power cable leads to check insu-
lation resistance (leads-to-ground) and con-
ductance (lead-to-lead) as directed in Chap-
ter 6.8 "Electrical tests of the motor", Page 53.
3. Disconnect the cable at the starter panel.
Megger the leads for ground and continuity.
Reading should be 10 M
Ω.
4. Remove the pumping unit in the reverse order
of the installation procedure (see Chapter 4.4
"Installation", Page 23) and place all parts on
the floor.
Also consider Chapter 2.2 "Transport",
Page 10.
a. Disconnect terminal box from main power
supply, see Page 43.
b. Disconnect power cable form terminal
box, see Page 43.
c. Uninstall riser pipe and detach power ca-
ble from riser pipe, see Page 40.
If the bands are double wrapped, cut
them properly so that they can be saved
for use as a single band for reinstallation.
d. Uninstall power cable, see Page 35.
Separate cable from motor and seal the
cable with the original terminal box ship-
ping cover (023).
e. Uninstall pump bowl assembly, see
Page 30.
f. Uninstall coupling, see Page 27.
g. Uninstall motor, see Page 26.
5. Check the riser pipes for need of replacement,
particularly the sections between high and low
well fluid levels.
6. Inspect any column check valves for wear and
proper functioning.
7. Remove the coupling retainer rings, retainer
screws, lock washers, and coupling pins.
Separate the pump element from the motor
between the adapter bracket (808) and the
strainer body (564).
8. Megger the motor for ground and continuity.
Reading should be 10 M Ω or more.
9. Seal the motor terminals with original power
terminal gasket (744-7) and power terminal
shipping cap (112-2).
10. If there is water in the motor, elevate motor
over a sump or drum. Remove lower casing
drain plug (806) from bottom of motor, then
remove vent plugs (806-4 and 806-5) at top of
motor to drain the water from the motor. Re-
place drain and vent plugs.
Continue with Chapter 2.3 "Storage and shipping",
Page 12.