Goulds Pumps VS - IOM - Manual (Page 18)

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
elevator 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 assem-
bly on the ground to perform these works.
For the long or large size assembly, it is rec-
ommended 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.
7-4 BOWL DISASSEMBLY
The bowl assembly shown in Figure 7.1 is com-
posed of a discharge bowl (For the model with
built-in check valve, it would be column adapter),
intermediate bowl, impellers with taper collects,
motor adapter, bearings and pump shaft.
A. Begin disassembly by removing the cap-
screws that secure the top stage intermediate
bowl and the 2nd stage intermediate bowl
and slide the discharge and top intermediate
bowls off the pump shaft together. Remove
the thrust washer.
B. Pull shaft out as far as possible and strike
impeller hub utilizing a taperlock driver or
equivalent sliding along the pump shaft to
drive the impeller off the taperlock
(see Figure 7-2).
Fig. 7-2 Disassemble the Impeller
C. After impeller is freed, insert a screwdriver
into the taperlock to spread it, Slide taperlock
and impeller off the pump shaft.
D. Use the preceding procedures until entire turbine
bowl assembly is completely disassembled.
7-5 TURBINE BOWL – WEAR RINGS
REMOVAL (OPTIONAL)
A. Utilizing a diamond point chisel, cut two ‘V’
shape grooves on the bowl wear ring approxi-
mately 180 degrees apart. Use extreme care
not to damage the wear ring seat.
B. With a chisel or equal, knock the end of one
half of the ring in, and pry the ring out.
C. On special materials such as chrome steel,
set up the bowl in a lathe and machine the
wear ring off, use extreme care not to
machine or damage the ring seat.
7-6 TURBINE BOWL – IMPELLER WEAR
RING REMOVAL (OPTIONAL)
Set up impeller in a lathe and machine wear ring
out, use extreme care not to machine or damage
ring seat or impeller hub. Impeller wear ring may
also be removed by following steps A and B
paragraph 7-5.
7-7 BOWL BEARING REMOVAL
Utilizing an arbor press and a piece of pipe or
sleeve with outside diameter slightly smaller than
bowl bearing diameter press the bearing out.
7-8 INSPECTION AND REPLACEMENT
A. Clean all parts thoroughly with a suitable
cleaner.
B. Check bearing seats for deformation and
wear.
C. Check pump shaft for straightness and exces-
sive wear on bearing surfaces. Check
straightness of the pump shaft. The straight-
ness should within 0.0005”/ft TIR.
D. Visually check impellers and bowls for cracks
and pitting. Check all bowl bearings for
excessive wear and corrosion.
7-9 TURBINE BOWL AND IMPELLER
WEAR RING INSTALLATION
(OPTIONAL)
Place chamfered face of bowl or impeller wear
ring towards the ring seat and press. Use an
arbor press or equal. Make sure ring is flush with
edge of wear ring seat.
10
TAPERLOCK DRIVER
DISASSEMBLY POSITION
SHAFT
IMPELLER
BOWL