WIK USER INSTRUCTIONS ENGLISH BO2662 5/09
Page 17 of 76
baseplate is not level, loosen anchor nuts, re-
Ievel it, retighten nuts, and recheck for nominal
gradient. Continue this process until the
baseplate is anchored and level.
4.2.3 Baseplates in train
Where driver, pump, and any other unit that couples
in train with the pump will be mounted on separate
baseplates, you must align their common centerlines
before grouting them. You must also precisely level
them. Failure to either properly align or level the
baseplates will make shaft alignment difficult, if not
impossible, without breaking up the grout; a
laborious and time consuming task. Please refer to
the initial alignment section 4.5 for specifics.
4.3
Foundation
The foundation may consist of any material
sufficiently heavy to afford a permanently rigid
support to the full area of the baseplate or soleplate
and to absorb all normal strains and shocks that
may be imposed in service. Points that should be
considered when preparing a foundation are as
follows:
1) A concrete foundation built up from solid ground
has proven the most satisfactory.
2) A minimum space of 25 mm (1 in.) should be left
between the underside of the baseplate flange
and the top of the foundation for grouting.
3) A concrete foundation should be poured early to
allow ample curing time before bearing the
pump load.
4) Foundation bolts must fit the holes and the
locations in the baseplate according to Outline
drawing in section 8. This may be accomplished
by constructing a wooden template, which
matches the dimensions of the Outline drawing
in section 8. This template will hang the
foundation bolts in their proper positions and
prevent them from moving while the foundation
is poured.
5) A pipe sleeve with a diameter approximately 3
times larger than the foundation bolt diameter
and 10 to 15 times the bolt diameter in length
should ring each bolt. After the concrete is
poured, the pipe sleeves are held firmly in place
but the bolts may be bent to conform to the
holes in the baseplate. For detailed illustration of
this installation, see
Figure 4-2
.
6) A pump unit to be anchored to steel work or
similar structure should bear directly on support
beams or walls and be supported so as to
prevent distortion of the baseplate and
misalignment due to yielding or springing of
either the structure or the baseplate.
FOUNDATION
BOLT (TYPICAL)
PIPE SLEEVE
(TYPICAL)
Figure 4- 2
: Foundation Bolt
4.3.1 Level the baseplate
If your pump train is supplied with soleplates, there
are some very important considerations in leveling
and alignment. When leveling soleplates the main
points to remember are:
1) The Outline drawing in section 8 illustrates the
dimensions and placement of the baseplates.
2) Anchor bolts and nuts must be recessed in the
soleplates as shown on the Outline drawing in
section 8
3) The foundation such as described under section
4.3, requires ample curing time before it can
support the weight of soleplates and pump.
4) A minimum space of 25 mm (1 in.) is required
between soleplate and foundation to assure
sufficient grouting. This may be obtained by
placing shims adjacent to each foundation bolt
hole or beneath each leveling screw in the
baseplate.
5) Baseplates must be precisely leveled in a
common plane, both lengthwise and crosswise,
using a machinist level or a more precision tool.
6) Ensure that initial alignment steps 8 through 10
under section 4.5.6 [Procedure] below are
complete before grouting.
4.4
Grouting
4.4.1 Grouting with cement and sand
A suitable grout mixture consists of one part
Portland cement and one part coarse, clean sand by
weight. Generally 6 to 8 liters (1.75 to 2 gal.) of
clean water for each 45 kg (100 lb.) of mix is
sufficient to make the mix placeable. The actual
amount of water required to make a placeable mix
may vary slightly. Use of the following procedure will
help to assure proper grouting.
