Concrete Foundation With Base Plate Or Base Frame / With T-Head Bolts - VEM W41 Series Installation, Operating And Maintenance Instructions

Installation, Operating and Maintenance Instructions (Translation)

When the cast concrete is completely hardened, the hexagonal nuts (8) of the stone bolts (7) must be
tightened crosswise.

The hexagonal head screws (12) in the motor feet (10) must be loosened. If strips of cardboard were used,
they must be removed. Then the exact alignment can be done (see chapter 8).

7.7.4 Concrete foundation with base plate or base frame / with T-head bolts

In the following the construction with base plates is described. The construction with base frame is done in the
same way.
Procedure:

The anchor plates (13) and the corresponding tubes (14) are embedded in concrete according to the
planned position of the anchor bolts in the raw foundation (1). During this process the tubes must not be
filled with concrete.

The base plates (5) must be screwed centred to the through bores of the motor feet (10) without shims (9).
To ensure exact centring the hexagonal head screws (12) can be covered with pieces of cardboard.

The T-head bolts (7) must be placed from below in the anchor bolt sleeves (6) of the base plate (5) and
then fastened at the upper end with a hexagonal nut (8). The thread should jut out for approx. 20 mm.

The motor is placed on the prepared raw foundation (1). Below the base plate there should be 40 to 60 mm
space for flattened steel bars for rough alignment (4).

The T-head bolts (7) are inserted in the anchor plates (13). There is only one possibility to insert the T-
head bolts in the anchor plates. They are then fastened by rotating them around 90° in clockwise direction.
To be able to do a rough alignment take care to have enough clearance for the anchor bolts.

By placing flattened steel bars (4) between raw foundation (1) and base plate (5) the motor is roughly
aligned. The flattened steel bars (4) should be placed within a distance of approx. 500 mm and immediately
left and right of the anchor bolt sleeves (6) so that the T-head bolts (7) will not distort the base plate (5)
when tightened. The motor must stand 3-4 mm lower than the work machine so that it is possible to do ex-
act alignments with shims later. During the rough alignment a uniform gap (for exact dimension refer to the
coupling manufacturer or plant project) between the coupling and the work machine must be kept. The di-
mension of the gap must be measured right and left, on top and from below. The biggest difference should
not be bigger than 0.5 mm.

With the hexagonal head screws (8) the T-head bolts (7) are fastened crosswise. Take care that no distor-
tions result in the machine feet (10).

With a water level the horizontal alignment in longitudinal and transversal direction is checked. If necessary
the above listed steps must be repeated.

The block-outs in the raw foundation must be wetted and if necessary excess water must be removed.
.
VEM motors GmbH-2013
1 Raw foundation
2 Cast concrete
3 Sprue
4 Flattened steel bar for rough alignment
5 Base plate / base frame
6 Anchor bolt sleeve
7 Anchor bolt: T-head bolt DIN 261
8 Hexagonal nut ISO 4032
9 Shims for exact alignment
10 Foot of machine
11 Washer, reinforced
12 Hexagonal head screw ISO 4017
13 Anchor plate DIN 24539
14 Anchor plate DIN 24539 tube
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English