Flowserve QLQ Vertical Worthington - Manual (Page 22)

QLQ, QLQC USER INSTRUCTIONS ENGLISH 87900027 – 06/14
Page 22 of 61
4.1.7.1 Installation of solid shaft driver
When lowering the motor and driver
half of coupling onto pump, do not let pump half of
the coupling touch the driver half of the coupling.
If the pump is not equipped with a
thrust bearing, double check on pump and motor
documentation that the thrust generated by the pump
can be withstood by the driver bearing. Running the
pump with a driver that cannot withstand the load
generated may cause severe damage to the driver.
Refer also to section 4.1.6 if the pump is equipped
with mechanical seal and thrust bearing.
Before bumping motor make sure coupling halves are
not touching and that the driver can rotate freely,
without rotating the pump.
Driver half coupling must be in proper position so the
circular key will not come out.
a) Install the driven half of the pump coupling on
pump top shaft. Hub is shrink fitted.
b) Install the driver half of motor coupling on motor
shaft. Hub is shrink fitted.
c) Clean driver mounting flange on discharge head
and check for burrs or nicks on the register and
mounting face. Oil lightly.
d) Center motor over pump and rotate to align
mounting holes.
Electric motors - Rotate junction box into desired
position.
Gear Drives - Rotate input shaft into desired
position.
e) Lower driver carefully into place making certain
that the female register on the driver mates over
the male register on the pump.
f) If rigid coupling is provided, install coupling
spacer, if any, without inserting the coupling bolts
g) Align the coupling hubs, as described in section
4.5.
h) Remove sling from motor and remove hoisting
equipment.
i) Check driver manufacturer's instructions for
special instructions including lubrication
instructions and follow all "startup" instructions.
j) Electric drivers should be checked for rotation at
this time. Make electrical connections "bump"
motor (momentarily start, then stop) to check
rotation. DRIVER MUST ROTATE
COUNTERCLOCKWISE when looking down at
top end of motor.
In case you realize that the driver
has a wrong rotating direction , contact
immediately Flowserve representative or Motor
manufacturer to get the proper corrective action to
be done. Improper attempt to change motor
rotation might result in motor damages or improper
driver function.
k) See impeller adjustment instructions (section 5.4)
and alignment instruction (section 4.5) before
bolting the pump and driver half of the coupling
together.
4.1.7.2 Installation of hollow shaft driver
a) Clean driver mounting flange on discharge head
and check for burrs or nicks on the register and
mounting face. Oil lightly.
b) Remove driver clutch.
c) See (j) regarding installation of motor guide
bushing, if required.
d) Lift driver and clean mounting flange, checking for
burrs and nicks.
e) Center motor over pump and rotate to align
mounting holes.
Electric motors - rotate junction box into desired
position.
Gear Drives - rotate input shaft into desired
position.
f) Lower carefully into place making certain that the
female register on the driver mates over the male
register on the pump.
g) Bolt driver to discharge head.
h) Check the driver manufacturer's instruction
manual for special instructions including lubrication
instructions and follow all "startup" directions.
Electric motors should be checked for rotation at
this time. Make certain the driver clutch has been
removed. Make electrical connections and "bump"
motor (momentarily start, then stop) to check
rotation. DRIVER MUST ROTATE
COUNTERCLOCKWISE when looking down at
top end of motor.
In case you realize that the driver
has a wrong rotating direction, contact
immediately Flowserve representative or Motor
manufacturer to get the proper corrective action to
be done. Improper attempt to change motor
rotation might result in motor damages or improper
driver function.
i) Some motors will be supplied with a "lower guide
bushing" or "steady bushing" which is installed at
the bottom of the motor to stabilize the shaft at this
point. Some motor manufacturers mount this guide
bushing before shipping while others will ship the
guide bushing with instructions for field mounting.