44 6EM Thru 18GM - 1100 Vertical Turbine Pumps
Shaft Straightness
Prior to installation or reassembly, bowl
shafts and line shaft should be checked for
straightness. The maximum allowable total
indicated runout must be less than .005".
Refer to the following illustrations showing
the proper positions at which dial indicator
readings should be taken. The shaft should
be supported in V-blocks or on rollers as
shown. Position the dial indicator and zero
the dial face. Slowly rotate the shaft and
observe the maximum runout.
If the shafts exceed the .005" maximum
limit, straightening will be required. Consult
the Layne/Verti-Line factory for straightening
recommendations, or a local qualified
machine shop.
Figure C
(Shafts 10 ft long or less)
Pump Bowl Assembly
Prior to the start of reassembling the pump
bowl the following is to be done:
A. Apply grease to the bowl registers to
improve assembly alignment.
B. Clean all components before starting the
assembly. Do not apply any petroleum
based solvents to rubber bearings.
C. Install bearings in their respective bowls
if they have been removed. If they have
not been replaced, they should be
thoroughly cleaned and lubricated with a
thin film of grease (except rubber
bearings).
D. Install new wear rings if they are to be
replaced in all bowls. Refer to Wear
Rings section of this manual for
instructions.
E. Remove the pipe plug from the suction
bell and remove old grease. Apply a thin
film of multi-purpose grease to the shaft
and the suction bowl bearing. See
Grease Recommendation in the drawing
section of this manual.
F. Lay out the parts in the order in which
they will be assembled. Reused
impellers are to be re-installed in the
same bowl in which it was originally
installed.
G. Install shaft sleeves as required
according to the following procedure:
1. Refer to the previously recorded
sleeve locations and scribe or mark
shaft accordingly.
2. Thoroughly clean the sleeve and
shaft in the sleeve area using a
cleaner as recommended by Loctite.
3. Apply a coat of Loctite 609 on the
shaft in the correct sleeve location
area. Slide the sleeve over the shaft,
rotating it several times while at the
same time moving the sleeve axially
on the shaft. This will spread the
Loctite evenly.
H. Proceed with the assembly of the pump
bowl as follows:
Flanged Bowls
A. Put the suction bell (case) in a horizontal
position and block from rolling. Insert
the pump shaft into the bearing as far as
it will go. Insert a shaft locating tool (refer
to Assembly Tools found at the end of
this section) through the pipe tap in the
suction bell and fasten to the pump
shaft. Tighten securely.
B. Install the sand collar if it has been
removed and secure with setscrews.
C. Install the first impeller over the pump
shaft and into position in the suction bell
(case) seat. The impeller should rotate
freely in the bowl. If it binds, remove and
determine the cause.
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