Flowserve VCT - Manual (Page 8)

USER INSTRUCTIONS APM, APMA and APH MX0301 - 07/03
Page 8 of 32
®
with ample headroom for lifting it. Refer to the
general arrangement drawing for the pump set.
4.2 Part assemblies
Motor is typically supplied loose. It is the
responsibility of the installer to ensure that the
motor is assembled to the pump and lined up as
detailed in section 4.5.2 and 5.5
4.3 Foundation
The foundation should be
sufficiently substantial to absorb vibration and to
form a permanent, rigid support for the pump. The
mass of the foundation it is considered that
foundation has an infinite mass since there will not
be resonance between pump mass and foundation
mass.
The combined resonant frequency of the pump,
motor, foundation and discharge piping has been
calculated to be sufficiently removed from the
rotational speed so that no vibration amplification
will occur. This analytical model has been based
upon the following:
A).
A rigid foundation support system that has
a stiffness of at least 2.5 x 10
5
lb/ft. It has been
assumed that the pump foundation provides no
lateral deflection to the combined assembly.
B).
An assumed discharge piping stiffness has
been used to simulate the effect of the discharge
piping.
Non-compliance with the provision of correct
foundation and installation may lead to failure of the
pump and, as such, would be outside the terms of
the warranty.
4.4 Grouting
After levelling foundation plate, soleplate or suction
barrel flange at 0.050mm (0.002 in.) maximum,
using a straight bar which cross the sole plate side-
to-side and a precision level device. Pour the
grouting in order to fill the cavity below the
foundation plate. It is important that a non-shrink
type of grout be used. Ordinary cement, sand and
water mixtures tend to shrink as the water
evaporates, often leaving the underside of the
foundation plate insufficiently supported. It is
recommended that grouting be performed by a
qualified grouting contractor. If in any doubt, see
attachment in this user instructions or please
contact your nearest service centre.
Grouting provides solid contact between the pump
unit and foundation, prevents lateral movement of
running
equipment and dampens resonant
vibrations.
Foundation bolts should only be fully tightened
when the grout has cured.
4.5 Alignment
4.5.1 Thermal expansion
The pump and motor will normally
have to be aligned at ambient temperature and
thermal expansion occurs after running at operating
temperature. After eight hours of operation shut
down and check the alignment immediately.
4.5.2 Alignment method
Ensure pump and driver are isolated
electrically and the half couplings are disconnected.
The alignment MUST be checked to
ensure successful operation using dial indicators as
follow:
a) Before mounting the motor check rotation
(see point 5.3 ).
b) Support driver vertically, shaft facing down
and thoroughly clean the shaft and
mounting faces.
c) Install motor half coupling with its key and
split ring on motor shaft, pull it down to
seat firmly against the split ring.
d) Install pump half coupling and adjusting
nut.
e) Using a dial indicator mounted to the driver
half coupling, rotate driver shaft to take
readings from the pump shaft, and move
the driver as necessary to align driver and
pump shaft within 0.002” ( 0.03 mm) total
indicator run out and tighten driver
mounting fasteners.(see Rotor setting
point 5.3)
f) Refer to driver manufacturer’s manual for
driver
operating instructions and
lubrication. ( See point 10.2 )