WIK USER INSTRUCTIONS ENGLISH BO2662 5/09
Page 25 of 76
provided by the manufacturer of the laser alignment
equipment.
4.8.1 Setting driver shaft end space
If your pump is driven by a motor; to prevent
destruction of motor sleeve bearings, which are
usually found in heavy-duty electric motors, locate
your motor in relation to the pump so as to ensure
the required running clearance (or end space)
between the thrust collars on the motor shaft and the
face of the motor bearings (see
Figure 4-9
Motor
Shaft Running Space below). To establish the
required end space proceed as follows:
SLEEVE BEARING
(TYPICAL)
TOTAL LATERAL MOVEMENT
ADJUSTED LATERAL MOVEMENT
THRUST COLLAR (TYPICAL)
0.5 in.
0.37 in.
0.13 in.
Figure 4- 9 : Motor Shaft Running Space
If your pump is driven by an electric motor
with ball bearings, or by any other driver, then skip
to step 5 of this procedure.
1) See that instructions have been complied with
under above headings:
a)
Alignment preconditions
b)
Installing coupling
2) Set motor on driver pads.
3) Measure total movement of motor shaft as
follows:
a) Push shaft into motor case until thrust collar
butts against face of bearing as shown by
Figure 4-9
Motor Shaft Running Space;
then select a reference point on motor case
and mark shaft with pencil.
b) Pull shaft out away from bearing face (i.e.,
toward pump) as far as it will go; then using
the same reference point that was selected
in step a above, mark shaft with pencil.
c) Measure distance between pencil marks the
distance (or total lateral movement) should
be at least the minimum given in the vendor
documentation in Section 10 or the Outline
section 8.
4) Set end space by pushing shaft back in toward
sleeve bearing 3 mm (0.13 in.) (See
Figure 4-9
Motor Shaft Running Space above). At this
setting, there will be adequate end space
between thrust collars and bearing faces. For
example, if total lateral movement is 13 mm
(0.50 in.) and the shaft is pushed back in toward
bearing face 3 mm (0.13 in.) as described, the
end space or clearance is 3 mm (0.13 in.) on the
drive end and 10 mm (0.37 in.) on the opposite
end.
After setting end space the motor shaft
should not be moved prior to scribing location of
hold down bolts.
5) With motor shaft as positioned in step 4, or with
driver shaft set as instructed in manufacturer's
instructions, set driver so that distance between
ends of driver and pump shafts is as specified in
the Outline drawing in section 8. Also if you have
gear-type coupling verify that dimension D
equals dimension L as shown by
Figure 4-10
Measuring Distance between Ends of Pump and
Driver Shafts below. Buttons as shown in figure
are not installed on spacer where couplings are
the diaphragm or disc type.
D
L
D=L
Figure 4- 10 : Measuring Distance between Ends
of Pump and Driver Shafts
6) If hold down bolt holes has not been tapped in
motor mount pads, you should now proceed with
task (see section 4.8.2 below); otherwise, you
may begin cold alignment (see section 4.8.3
below).
4.8.2 Tapping driver mount pads
Where driver mount pads have not been tapped for
hold down bolts, they must be tapped before
attempting to align driver to pump. Proceed as
follows:
