Disassembly, Assembly And List Of Parts - Gta160; Disassembly; Assembly - WEG G Serie Manual De Instalación, Operación Y Mantenimiento

www.weg.net

6.9 DISASSEMBLY, ASSEMBLY AND LIST OF PARTS - GTA160

6.9.1

Disassembly

1. To disassemble the alternator, place it in the vertical
position with the side of the coupling discs upwards;
2. Remove the coupling discs;
3. Remove the whole rotor by using an eyebolt with the
same thread as that of the center hole of the shaft
end, lifting it with the aid of a hoist;
4. Mark the position of the flange (4) and of the ND-end
shield (10) in relation to the frame (18). Thus, the
original and optimal alignment between these three
parts will be guaranteed;
5. Place the alternator in the horizontal position on a
base so that the feet and flange will be suspended;
loosen the main connection cables of the terminal
block and the cables of the voltage regulator (7);
6. Remove the pull rods (11) that fix the ND-end shield
and the DE-flange to the frame. When removing the
pull rods, the ND-end shield and the flange will be
loose and may fall;
7. Using a rubber hammer, remove the ND-end shield
making sure that all cables of the terminal box are
released, thus, preventing.
NOTE
To disassemble the alternators with double
bearing (constructive form B35T) first the
flange and the D-end shield must be
removed.
42 l Installation, operation and maintenance manual – Synchronous Alternator – G line - Horizontal
1.
2.
3.
4.
5.
6.
7.
8.
9.
10. Integrated terminal box and back
11. Fixing rod
12. Exciter stator
13. Exciter rotor
14. O'ring
15. Back bearing
16. Diodes
17. Main rotor
18. Frame
19. Protection screen
20. Coupling bushing
6.9.2

Assembly

1. Check if machined parts of the frame and of the
flange and ND-end shield are clean and with
corrosion protection;
2. With the frame placed horizontally on a flat surface,
align the marking of the ND-end shield and of the
front flange to the marking of the frame and fit them,
taking appropriate care with the cables of the main
stator and of the of the exciter stator to avoid
damaging them;
3. Fix the flange and ND-end shield to the
corresponding pull rods (11);
4. Put the alternator in a vertical position with the flange
side up;
5. Insert the complete rotor within the frame, taking
appropriate care not to damage the coils of the
exciter rotor and of the main rotor;
6. Put the alternator in horizontal position;
7. Make sure that the bearing is fitted on the seat and
the o'ring (14) is in the correct position;
8. Make the cable connections of the voltage regulator
and exciter according to the alternator wiring diagram
and the voltage regulator manual;
9. Make sure that all connections of main cables,
voltage regulator and exciter are correct.
NOTE
During assembly, the pull rods must be

perfectly aligned for a correct alignment of
the parts fixed.
To assemble the alternators with double

bearing (constructive form B35T) the flange
and the D-end shield must also be mounted.
Fixing screw of the discs
Coupling discs
Shaft
Flange B15
Fan
Main stator
Voltage regulator
Terminal block
Terminal box cover
cover
10680382