Type B Vital Relays - Alstom

Corrective Maintenance
6.4. WIRING AND PLUGBOARD CHANGES
6.4.1. Terminal Removal and Installation
To remove a terminal, follow the procedure in Table 6–3 in the order provided.
Follow the procedure in Table 6–4 to install a terminal.
Table 6–3. Terminal Removal Procedure
Step
Procedure
1 Insert extractor P/N 59688-000-00 to raise the lock tab of the terminal so that it
clears the shoulder on the insulator.
SPRING BEAM
SQUEEZE TOWARDS
INSULATOR TO RELEASE
EXTRACTOR
INSULATOR
LOCKING TAB
LOCKING SHOULDER
2 Pull on wire that is connected to terminal and withdraw terminal from plugboard.
EXTRACTOR
INSULATOR (P/N 59688-000-00)
3 If no wire is attached to terminal, use long-nose pliers to extract terminal.
P1457, Rev. Nov/07 6–6 Alstom Signaling Inc.