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Topic<br />
TABLE OF CONTENTS (CONT.)<br />
Page<br />
6.5. MECHANICAL TEST PROCEDURES.......................................................6–13<br />
6.5.1. Relay Structure Inspection ....................................................................6–14<br />
6.5.2. Mechanical Test and Adjustment Procedure .........................................6–17<br />
6.5.3. Microchron II Timer Relay Electronics Removal and Replacement .......6–23<br />
7. SECTION 7 – PARTS CATALOG ....................................................................7–1<br />
7.1. GENERAL ...................................................................................................7–1<br />
7.2. PARTS LIST................................................................................................7–1<br />
7.3. B1 NEUTRAL RELAYS ...............................................................................7–2<br />
7.4. B1 BIASED-NEUTRAL RELAYS .................................................................7–3<br />
7.5. B1 CODE-RESPONSIVE RELAY................................................................7–7<br />
7.6. B1 SLOW PICKUP, SLOW-RELEASE AND QUICK CROSSOVER<br />
RELAYS ....................................................................................................7–14<br />
7.7. B1 ELECTRONICALLY DRIVEN HIGHWAY CROSSING RELAY AND FLASHER<br />
MODULE ...................................................................................................7–15<br />
7.8. B2 NEUTRAL RELAY................................................................................7–18<br />
7.9. B2 BIASED-NEUTRAL RELAY .................................................................7–21<br />
7.10. B2 AC VANE RELAY, 2F-2B, TWO POSITION.........................................7–24<br />
7.11. B2 AC VANE RELAY, 4F-4B, TWO POSITION.........................................7–27<br />
7.12. B2 CODE RATE TRANSMITTER RELAY .................................................7–30<br />
7.13. B2 MICROCHRON II TIMER RELAY (DC)................................................7–36<br />
7.14. B2 AC MICROCHRON II TIMER RELAY ..................................................7–41<br />
7.15. TYPE VTB POLAR-BIASED RELAY .........................................................7–45<br />
7.16. B RELAY CONTACT GROUPS.................................................................7–54<br />
7.17. B RELAY PLUGBOARDS AND INSTALLATION SUPPLIES ....................7–58<br />
7.18. B RELAY REGISTRATION PLATES AND GASKETS...............................7–65<br />
A. APPENDIX A – RELAY ENGINEERING DATA (ED) SHEET LIST ................ A–1<br />
A.1. GENERAL ...................................................................................................A–1<br />
B. APPENDIX B - GLOSSARY............................................................................ B–1<br />
B.1. CONTACT DEFINITIONS............................................................................B–1<br />
B.2. GENERAL DEFINITIONS............................................................................B–2<br />
C. APPENDIX C – TOOLS AND KITS................................................................. C–1<br />
C.1. GENERAL .................................................................................................. C–1<br />
C.2. CORRECTIVE MAINTENANCE TOOLS AND TOOL KITS........................ C–1<br />
C.3. SHOP TEST RACK .................................................................................... C–5<br />
C.4. VANE RELAY TEST UNIT.......................................................................... C–6<br />
P1457, Rev. Nov/07 iii <strong>Alstom</strong> Signaling Inc.
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