Completion Of Motor; Mounting The Coupling; Steel Foundations - VEM W41 Series Installation, Operating And Maintenance Instructions

Installation, Operating and Maintenance Instructions (Translation)
Caution!
When using chemical solvents observe the warning notices and instructions for use in the applicable ma-
terial safety data sheet. Chemicals must be suitable for the components, especially for plastic parts.

7.4 Completion of motor

In some exceptional cases the transport of the motor is done with all accessories (i.e. fan cover, fan motors or en-
coders) separately. These parts must be attached to the motor by using the supplied securing components accord-
ing to the dimensional drawing.

7.5 Mounting the coupling

Caution!
For motors with two floating bearings only couplings with limited axial clearance must be used.
Attention!
The coupling must be balanced with balancing class G2.5 according to ISO 1940.
The following steps are necessary, if nothing else is described by the manufacturer of the coupling:

The mounting temperature of the coupling must be detected.
(belongs to the scope of work for coupling design)

The dimensions and shape of shaft end and coupling bore must be checked.

All contact surfaces must be deconserved (see chapter 7.3)

The coupling half must be warmed evenly until mounting temperature is reached (i.e. by induction heating,
in a furnace or with a ring burner.

The coupling half must be mounted quick and centrically on the shaft end. During this assembly no ham-
mering must be used so that the bearings will not be damaged.

7.6 Steel foundations

The design of a steel foundation is determined by the application of the motor. In many cases they are foundation
slabs or steel floors in buildings or vehicles. Foundation slabs must be erected on load-bearing concrete.
When the motor is starting or running down the natural frequency is passed in case of foundations with deep fre-
quency tuning. This can result in unsteady running for a short period of time.
Procedure:

The motor is placed on the prepared raw foundation.

The exact alignment can be done immediately if the threaded holes for the foot bores are already available
in the steel foundation (1) (see chapter 8). In all other cases further steps are necessary.

The motor must be aligned roughly. During this process 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. The difference should not be bigger than 0.5 mm. The
motor must stand 3-4 mm lower than the work machine so that it is possible to do exact alignments with
shims.

The foot bores have to be marked on the steel foundation (1).

The motor is removed.

In the marked places core holes must be drilled in the steel foundation suitable for the hexagonal head
screws (12). The holes must then be threaded. Chips from threading must be removed.
.
VEM motors GmbH-2013
1 Steel foundation
Shims for exact alignment
9
Foot of machine
10
Washer, reinforced
11
Hexagonal head screw ISO 4017
12
10
English