Flowserve Byron Jackson Type M - Manual (Page 34)

® Byron Jackson Double Mechanical Seal Submersible Pumping Unit • 1042.293/9 • June 04
Page 34 of 68
- by the coupling pin (697-1) and the retainer
screws (806-6), flat washers (004-1), and
lock washers (690-5) on the one-piece
coupling.
Also verify that the coupling bore and motor
shaft are clean and free of dirt and foreign
matter.
7. Refer to Figure 20.
Lower the bowl assembly to engage
- the jaws of the pump half coupling (530)
and those of the motor half coupling (529)
or
- the one-piece coupling bore (531) with the
motor shaft and key (676-1).
Figure 20 Aligning strainer and adapter
8. Rotate the bowl assembly to line up bolt holes
of strainer with those of the adapter (808) and
to line up bottom cable guard with power ter-
minal shipping cap (112-2), then lower until
flanges butt metal-to-metal.
Install and tighten fasteners (cap screws or
stud nuts with washers).
9. Remove the adapter bracket pipe plugs (794)
to observe, through the pipe plug holes, the
alignment of the holes for the half coupling
lock screws (806-3).
Install the half coupling lock screws (806-3) in
the half-coupling, with their washers (690-4)
and apply torque to the half coupling screws
(806-3) according to Table 6.
Unit size
[inches] Torque
[Nm] Torque
[Ft-lbs]
8 27 20
10 41 30
12 54 40
14 54 40
17 68 50
18 68 50
21 68 50
Table 6 Torque for half coupling screws
After tightening, check that lock washers
(806-3) are seated firmly and lock washers
(690-4) are compressed.
For one piece couplings, you will now install
the coupling pin (697), coupling lock screws
(806-6), lock washers (690-6), and flat wash-
ers (004-1) or the retaining rings (526) to re-
tain the coupling pin in its proper position.
10. Reinstall the adapter bracket pipe plugs (609)
and tighten firmly.
11. The strainer body has two holes, size 1/8"
N.P.T. at 180°. Pour water into one of these
holes to fill the adapter bracket (808) until wa-
ter runs out the other hole. (A 90° street elbow
is used for this purpose.)
The pumping unit is now ready for installation of
the power cable.