32 Maintenance guide UCG | 1ZSE 5492-124 en, Rev 6
A
A
Pin
Locking pin
View A - A
Spring
Washer
(insulating)
4.4 Mounting the moving transition contacts
Mount the moving transition contacts according to Fig. 21.
A replacement contact consists of a contact with mounted
spring.
Punch the shaft through the first bearing hole and put a
contact, spring, insulating washer and another contact on
the shaft as it is continuously punched in. Then proceed with
the next phase. Finally lock it with new split pins. Mount the
springs by means of the pin and new locking pins.
Fig. 21. Transition contact construction.
Shaft
Split pins
Spring
Contact
Proceed with the other side of the diverter switch. Put a ruler
on the linings of the tran-sition contacts. No lining should lie
more than 1 mm from the ruler.
If any lining does, adjust these contacts closer to the board
by filing off material on the surface of the contact that lies
against the stop shaft.
When all transition contacts on both sides are mounted, make
sure that the contacts move easily in the bearings and that
the springs are functioning.
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