Flowserve ESP3 - Manual (Page 41)

ESP3 USER INSTRUCTIONS ENGLISH 26999943 08-11
Page 41 of 64
d) Back the impeller [2200] off the cover [1220] by
rotating the adjusting sleeve [3400]
counterclockwise so that the next slot lines up
with one of the shaft keyways:
e) For GP1 and 2 Pumps, continue to rotate the
sleeve [3400] in the same direction for an
additional four or five combinations of shaft
keyway/sleeve slots (22.5 degrees each - the
keyway that lines up will alternate as the sleeve
[3400] is turned).
For GP3 Pumps continue to rotate the sleeve
[3400] in the same direction for another five or
six combinations of shaft keyway/sleeve slots
(22.5 degrees each - the keyway that lines up
will alternate as the sleeve [3400] is turned)
f) Install the impeller adjustment key [6700.3) and
retaining ring [2530.2] back into position.
g) Check for freedom of shaft [2100] rotation by
turning by hand.
As the reverse vane and Recessed Impellers
are set from the read cover, these settings can be made
in the shop. If setting is being performed in the shop,
less casing, it is advisable to leave out the impeller
gasket [4590.2] during impeller setting. This will ensure
that the impeller is fully seated and will not tighten
further in operation. The impeller gasket must be
installed before the casing is installed.
6.6.3.2 Open and Lo-Flo impeller setting
a)
Rotate the shaft [2100] so that the impeller
adjustment key [6700.3] is toward you.
b) Remove the retaining ring [2530.2] and key
[6700.3] from the adjusting sleeve [3400].
c) Holding the shaft [2100] steady, turn the
adjusting sleeve [3400] counterclockwise until
the impeller [2200] is resting against the running
face of the casing [1100].
d) Back the impeller [2200] off the casing [1100] by
rotating the adjusting sleeve [3400] clockwise so
that the next slot lines up with one of the shaft
keyways:
e) For GP1 and 2 Pumps, continue to rotate the
sleeve [3400] in the same direction for an
additional four or five combinations of shaft
keyway/sleeve slots (22.5 degrees each - the
keyway that lines up will alternate as the sleeve
[3400] is turned).
For GP3 Pumps continue to rotate the sleeve
[3400] in the same direction for another five or
six combinations of shaft keyway/sleeve slots
(22.5 degrees each - the keyway that lines up
will alternate as the sleeve [3400] is turned)
f) Install the impeller adjustment key [6700.3] and
retaining ring [2530.2] back into position.
g) Check for freedom of shaft [2100] rotation by
turning by hand.
6.7 Disassembly
Use extreme care in removing and dismantling pump.
Refer to pump assembly drawings for part
nomenclature (see Section 8).
Lock out power to driver to prevent personal
injury.
If Flowserve ESP3 pumps contain dangerous
chemicals, it is important to follow plant safety
guidelines to avoid personal injury or death.
6.7.1 Removing pump from pit
a)
Close control valve in discharge line.
b) Lock out power supply to driver.
c) Disconnect all electrical connections.
d) Close all valves on auxiliary equipment and
piping then disconnect all auxiliary piping.
e) Disconnect discharge piping from pump.
f) Remove coupling guard [7450.1-.2] and coupling
halves [7200].
g) Disconnect driver [8000] and remove.
h) Unbolt pump mounting plate [6130] and lift pump
(see Sections 2.3 and 4.4) from pit. Let the
pump drain thoroughly before removing pump
completely. Remove casing drain [6515.1], if
supplied.
i) Remove liquid level controls (if any).
j) Lift the pump (see Sections 2.3 and 4.4) out of
the pit and lay pump horizontally on supports.
For units that are welded, the welded
sections should not be disassembled unless the parts
need to be replaced.
6.7.2 Pump disassembly
a)
Pump discharge pipe removal
•
Discharge pipes four inches and less:
Unscrew the flange [1245.2], locknut [3400], and
loosen the lower locknut. Then the upper
discharge pipe [1360] can be unscrewed.
Discharge pipes greater than four inches:
Unscrew the flange [1245.2]. These pumps are
furnished with the discharge pipe bolted to the
mounting plate [6130] by a flange [1245.3] and
four screws [6570.11]. Remove the screws
holding the flange to the mounting plate [6130].
•
The discharge pipe [1360] can then be removed
by unbolting the elbow [1371] from the discharge
of the casing [1100) and pulling the discharge
pipe out from the underside of the mounting plate
[6130].