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Installation, operation and maintenance instructions
High voltage flameproof motors for explosive atmosphere
AMD Rg 355-400-450-500
Foundations and fastenings – Horizontal arrangment
4.3. Fit the anchor bolts (5) or the through bolts (6) in
the bedplates (1) so that the top of the anchor bolts
is 12 mm above the upper surface of the nuts (16).
4.4. Raise the machine, than hang the bedplates
(together with anchor bolts) to the feet by means of
the fastening bolts. Insert between bedplates and
motor feet the suggested thickness of adjusting
shims (2) and tighten the fastening bolts.
4.5. Determine the right location of the leveling elements
(Fig. 1) and put them in place. Fix in place the
leveling elements using preferably a bonding agent
like Sikadur or similar. Put the machine with the
bedplates on the leveling elements and adjust the
level.
The
approximately in accordance with the indication of
the machine outline drawing.
4.6. Exactly align the motor to the coupling half of the
mating machine by sliding it horizontally and
adjusting vertically by means of the leveling screw.
5.
Grouting guidelines
Site management is responsible for ensuring that the
work is carried out in a proper and professional manner.
Foundation
absolutely clean and unpainted. Never grout in parts
which are oily or have been coated with normal paint.
5.1. Grouting in the foundation bolts (Fig. 2). Check
again that the foundation surfaces is clean and wet.
Fill the holes for foundation anchor bolts (5) with
thin-bodied concrete up to approximately 10 mm
below the top edge and vibrate if possible. Minimum
setting time is 72 hours. After this period of time, the
fastening nuts (16) may be tightened up. Care has
to be taken when tightening up that neither the
machine housing nor the sole plates or bedplates
are distorted. After tightening, check again shaft
alignment and correct if necessary.
5.2. Grouting in the foundation through bolts (Fig. 3). Fit
anchor plates (8) and tighten up bolts. Care has to
be taken when tightening up that neither the
machine housing nor the sole plates or bedplates
are distorted. After tightening, check again shaft
alignment and correct if necessary. Dry foundation
holes for bolts (6) and pack out with elastic filler (13)
to 5-10 mm below top edge. recommend a
granular synthetic filling compound, e.g. LUSTREX-
Polystyrene 2220 or 4220. Supplier: MONSANTO
PLASTICS & RESINS CO. 800 N. Lindbergh Blvd.,
St. Louis, No. 63166 (USA). Sand may not be used
as a filler. After packing out with filler (13), seal top
of foundation holes with an oil-resistive elastic
sealing compound (14), e.g. with Sikaflex - 11 FC.
5.3. End of grouting. Finish grouting foundation in
conformity with the corresponding outline drawing
and foundation plan. Vibrate enclosed concrete
(12).
machine
axis
position
and
fastening
components
5.4. Cast foundation plinth as close as possible to
finished size (5-10 mm below top face of sole plate).
Take care that the sole plates are completely filled
with grout, tamping if necessary. (Mixture, pt. 5.5).
5.5. Concrete strength and mixture. Using concrete from
a ready-mix concrete company subjected to quality
control reduces risks in quality and should be
procured if available. As a basic rule, higher
standards of quality are to be set when ordering
smaller quantities. One should try to attain a
concrete strength B25 = 25 N/mm
must
be
5.6. If the services of a ready–mix concrete company are
not available and in the absence of concrete mixture
ratios, the figures given below may be taken as a
guide. The concrete mixtures P300 and P350 are
suitable for grouting machine foundations and
contain 300 kg and 350 kg cement per 1 m
concrete, respectively. The sand and gravel
proportions for 1 m
follows:
40% Fine sand
must
be
25% Coarse sand
35% Gravel
100-110 liters of water
The following mixture can be used for grouting the
anchor bolt holes:
2/3 Fine sand
1/3 Coarse sand
When using any other mixtures, always cast and test a
specimen block. Only clean, washed materials must be
used.
A high concrete strength will be attained with high
standard strength of the cement, low water-cement ratio,
and compacting by vibrating.
Water-cement ratio = --------------------------------
The water-cement ratio has a decisive influence on the
final strength of the concrete. It is desirable to have a
water-cement ratio of 0.3 to 0.45, whereby the water
contents of the aggregates must be taken into
consideration. It is not permitted to have a water-cement
ratio > 0.6.
The concrete shall neither dry out nor freeze during
the first 48 hours. During this time the temperature
of the foundation should not fall below 10°C. The
optimum temperature for the setting process is 20°C
10°C. Under normal conditions the foundation can
be statically loaded 3 days after casting.
Sheet No.
3AAM101029 E
01.2023
Rev. B
Page 2 of 3
2
.
3
of
3
of finished concrete are as
Grain size 0-5 mm
Grain size 6-15 mm
Grain size 16-35 mm
Grain size 0-5 mm
Grain size 6-15 mm
Water contents (I)
Cement contents (kg)
Issued by: MOLM
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