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

Installation, Operating and Maintenance Instructions (Translation)

The bores of the foundation blocks must be filled with concrete (2). Take care that the concrete is not high-
er than approx. 10 mm below the upper edge of the concrete block (4).

Depending on the type of concrete the hardening of the cast concrete can take up to one week. During
hardening the motor should remain placed on the foundation.

The hexagonal head screws (12) in the motor feet must be loosened. If strips of cardboard were used, they
must be removed. Then the exact alignment can be done (see chapter 8).

7.7.2 Concrete foundation with base plate or base frame / with stone bolts

In the following the construction with base plates is described. The construction with base frame is done in the
same way.
Procedure:

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 stone bolts (7) must be placed from below in the anchor bolt sleeves (6) and then fastened at the up-
per 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).

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 stone bolts (7) will not distort the base plate when
tightened. The motor must stand 3-4 mm lower than the work machine so that it is possible to do exact
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 stone bolts (7) are fastened.

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.

The block-outs are filled with cast concrete (2). Take care that the concrete is not higher than approx. 10
mm below the upper edge of the base plate (5).

Depending on the type of concrete the hardening of the cast concrete can take up to one week. During
hardening the motor should remain placed on the foundation.
.
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: stone bolt DIN 529
8 Hexagonal nut ISO 4032
9 Shims for exact alignment
10 Foot of machine
11 Washer, reinforced
12 Hexagonal head screw ISO 4017
12
English