Flowserve ESP2 - Manual (Page 43)

ESP2 USER INSTRUCTIONS ENGLISH PCN-(71569292) 4-12
Page 43 of 64
6.9.2 Inserting the shaft using a “shaft bullet”
(see Figure 6-3)
a)
Standard and vapor tight construction:
connect the upper column (1341.1) to the
mounting plate (6110). For Group 3, the upper
column and support head (3160) must be bolted
to the mounting plate at the same time. Vapor
proof or pressurized construction: replace the
upper column gasket (4590.5) and reconnect the
upper column (1341.1) to the mounting plate
(6110). For Group 3, the bearing bracket (3130)
must be bolted to the mounting plate at the
same time.
b) If intermediate bearings are used, reconnect the
columns (1341.2) and intermediate bearing
holders (3250).
c) Bolt the adapter (1340.1) back onto the last
column in the pump.
d) Screw the shaft bullet onto the end of the shaft
(2100) at the impeller end.
Always insert the shaft from the
mounting plate side of the pump. Never insert it from
the adapter side because shaft threads may cause
damage to the internal bearings.
e)
All designs (excluding Group 3 vapor proof
and pressurized): the pump shaft (2100)
should now be inserted into the pump from the
mounting plate side. For Group 3 vapor proof
and pressurized designs: if the lip seal
(4310.1) is still in the bearing bracket (3130),
remove it at this time. Slide the shaft (2100)
through the bearing bracket and down through
the columns. Once the shaft has cleared the
bearing bracket, replace or reinsert the lip seal
into the bearing bracket.
6.9.3 Inserting the shaft without “shaft bullet”
a)
Standard and vapor tight construction:
connect the upper column (1341.1) to the
mounting plate (6110). For Group 3, the upper
column and support head (3160) must be bolted
to the mounting plate at the same time. Vapor
proof or pressurized construction: replace the
upper column gasket (4590.5) and reconnect the
upper column (1341.1) to the mounting plate
(6110). For Group 3, the bearing bracket (3130)
must be bolted to the mounting plate at the
same time.
It is important that the shaft and columns
are well supported after the shaft is partially inserted or
bending in the shaft may occur.
b) All designs except Group 3 vapor proof and
pressurized: insert the shaft from the motor
side of the pump through the starter column
(1341.1) until the shaft threads (for the thrust
bearing - 3031) are about 3 inches from the
starter column. For Group 3 vapor proof and
pressurized: if the lip seal (4310.1) is still within
the bearing bracket (3130), remove it at this
time. Insert the shaft from the motor side of the
pump through the bearing bracket (3130) and
starter column (1341.1) until the shaft threads
(for the thrust bearing - 3031) are about 3 inches
from the starter column. Replace or reinsert the
lip seal (4310.1) into the bearing bracket (3130).
c) Slide the first bearing holder (3250), with bearing
in place, onto the end of the shaft (2100).
d) If intermediate bearings are used, then slide the
rest of the columns (1341.2) and bearings
(3020, 3250) onto the pump.
e) If no intermediate bearings are used on pump,
or after they have all been installed, then slide
the adapter (1340.1) onto the shaft (2100) and
bolt to the starter column (1341.1).
6.9.4 Impeller installation
a)
Insert a new o-ring (4610) at base of impeller
(2200) threads.
b) Apply a light coat of grease or oil to impeller
threads as to allow for ease of disassembly in
the future.
c) Using a strap wrench to hold the drive coupling,
screw impeller (2200) onto the end of the pump
shaft (2100) clockwise until snugly fit.
Do not attempt to use a crowbar as a
lever as damage to the vanes may result.
6.9.5 Thrust Bearing Reassembly
(Vapor proof and pressurized designs)
Cover the shaft threads with a Teflon
tape to prevent them from causing internal damage to
other components.
• For Group 1 and 2 pumps: Reattach the
stuffing box (4100) to the upper column. See
section 6.9.6 “Packing" or section 6.9.7
"Mechanical Seal" for next steps.