Change Of Measure G; General Note Of Installation - WEG G Serie Manual De Instalación, Operación Y Mantenimiento

Table 4.10: "G" standard dimensions
Coupling Disc
ØPA (mm)
(SAE)
241,3 7,5
263,4
314,2
352,3 11,5
466,6
517,5
571,4
673,1
733,4

ØPA dimension has a tolerance of -0.13 mm

4.9.3.2.2 Change of measure G

If it is necessary to change the measure "G", the position
of the coupling discs (E) should be amended.
To do this simply remove or add the spacer rings (I), as
shown in Figure 4.13.
Dimension G
Figure 4.13: Procedure to change measure G
NOTE
To meet the combination of necessary disc
and flange, the flange can also be exchanged
(A).
The fixation of the coupling discs must be performed
according to tightening torques shown in Table 4.11.
Table 4.11: Tightening torques to fix the coupling discs
Fixing screw
Frame
Partial Thread /
size
Blackened
160 8xM10x1,5
200 8xM10x1,5
250 10xM10x1,25
315 12xM12x1,5
355 12xM20x2,5
400 12xM20x2,5
* Tightening torques defined according to VDI-2230 Standard.

For larger frames, refer to WEG.

Fix the screws with high torque chemical glue.
10680382 Installation, operation and maintenance manual – Synchronous Alternator – G line - Horizontal
G (mm)
30,2
8 61,9
10 53,9
39,6
14 25,4
16 15,7
18 15,7
21 0,0
24 0,0
A) Flange
B) Shaft tip
C) Key
D) Coupling bushing
E) Coupling discs
F) Hexagon bolt
G) Adjusting ring
H) Stop ring
I) Spacer rings
Resistance Tightening
class torque (*)
12.9 82 Nm
12.9 82 Nm
10.9 68 Nm
10.9 119 Nm
10.9 566 Nm
10.9 566 Nm
NOTES

The values of the tighten torques shown in
Table 4.11 are nominal for final tightening
with a torque wrench.

To pre-tightening (screw gun or impact
wrench) must be used maximum 70% of the
nominal value.
 During the maintenance or replacement of
the coupling discs, the screws must be
replaced with new ones, according to Table
4.11.

Shall not be used full thread screws for this
application.
4.10 GENERAL NOTE OF
INSTALLATION
NOTE
The user is responsible for installing the
alternator.
WEG is not responsible for damage to the
alternator, associated equipment and
installation, which occurred due to:

Excessive vibrations transmitted;

Poor facilities;
 Failures in alignment;

Inappropriate storage conditions;

Failure in following instructions before start-
up;

Incorrect electrical installation.
www.weg.net
l 35