SM-6495 - Ansaldo STS

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General Maintenance and Troubleshooting3. Re-install the gearmotor per Section 3.2.6.As a preventive maintenance measure, it is recommended that this procedure be followed every200,000 gate mechanism cycles.3.2.11. Installing the Power Down Module Upgrade KitWARNINGThis procedure removes the crossing gate from service. Follow all of thelocal and FRA regulations and safety requirements for temporarilyremoving a crossing gate from service. (See Section 3 for additionaldetails.)NOTEWiring diagrams for the 12-volt and 24-volt systems are presented inFigure 2-2 through Figure 2-5.1. Remove the gate mechanism from service and render it in a safe condition for maintenance.2. Remove the spiral wrap and the wire ties from the wiring harness.3. Remove the field wires from terminals 1C and 2C. Save the attaching hardware for later use.4. Remove the four wires from the old power down module from terminal 1C, 2C, 3C, and 5B. Donot reinstall the nuts and washers yet. The old module need not be removed, however, US&Srecommends that it be removed when a new power down module is installed. If the old module isleft in, the module wires should be cut as close to the module as possible and removed. Thelocation of the old power down module is shown in Figure 3-3.5. Remove the remaining wires and hardware from terminal C1. Remove the terminal post from theterminal block by removing the half nut and washer holding the post to the underside of the block.6. Remove the terminal post from the terminal block and replace it with the longer terminal post fromthe Power Down Upgrade Kit. Ensure that the head on the new longer terminal post is firmlyseated in the bottom of the terminal block. Secure the terminal post to the terminal block in thesame manner that the shorter post was secured.7. Repeat Steps 5 and 6 for terminal post 2C.8. Place new wire ties on the wire harness and reattach the spiral wrap removed in Step 2.3-12 SM 6495, Rev. 7, December 2008
General Maintenance and TroubleshootingFigure 3-3 - Location of the Power Down Module(Units Manufactured Before September 1, 2003)NOTEThe wire harness must be positioned so that it is below the Power DownModule after the module is mounted on the terminals.9. Install the wires, new power down module, and hardware on terminal posts 1C, 2C, and 3C perFigure 3-4. If the hardware is not installed properly the power down module will not sit level onterminal posts 1C, 2C, and 3C. The redesigned Power Down Module is shown in its properlocation in Figure 3-5.10. Attach the single wire on the power down module to terminal post 5B and secure it in place usingthe washer and nuts removed in Step 4.11. Reattach the field wires on terminals 1C and 2C using the hardware removed in Step 3.SM 6495, Rev. 7, December 2008 3-13
Page 1: 1000 Technology Drive, Pittsburgh,
Page 4 and 5: Revision HistoryRevision HistoryRev
Page 6 and 7: Revision Historyiv SM 6495, Rev. 7,
Page 8 and 9: Table of Contents3.2.9. Power Down
Page 10 and 11: Table of ContentsFigure 5-11 - Mode
Page 12 and 13: Table of Contentsx SM 6495, Rev. 7,
Page 14 and 15: IntroductionSIDEWALK GATEHIGHWAY CR
Page 16 and 17: IntroductionNOTEHighway crossing ga
Page 18 and 19: Introduction1-6 SM 6495, Rev. 7, De
Page 20 and 21: General Maintenance and Troubleshoo
Page 56 and 57: Optional Equipment4-2 SM 6495, Rev.
Page 58 and 59: Parts List5.1. Model 95 Gate Mechan
Page 60 and 61: Parts List505535110 135157(2 per si
Page 62 and 63: Parts List5.2. Model 95 Pedestrian
Page 64 and 65: 233Parts List35110 13 515 716 22530
Page 66 and 67: Parts List255245250235353 23IMPORTA
Page 68 and 69: Parts List5.3. Model 95 Sidewalk Ga
Page 70 and 71: Parts List5110 1353510315135310105
Page 72 and 73: Parts ListFigure 5-9 - Model 95 Sid
Page 74: Parts ListItem Part NumberPart Desc
Page 77 and 78: Parts ListItemNumberPart Number340*
Page 79 and 80: Parts List5.6. PN-150 Electrical As
Page 81 and 82: Parts List125202513012015525 20 15
Page 83 and 84: Parts ListItem Part NumberPart Desc
Page 85 and 86: Parts List5.8. Non-Vital Pedestrian
Page 87 and 88: Parts List5.9. Model 95 Maintenance
Page 89 and 90: Parts List5.10. Tool Kit (N46707001
Page 91 and 92: Parts List5.13. Power Down Module U
Page 93 and 94: Parts List5.16. Gate Arm Light Fuse
Page 95 and 96: Gate Arm Clearing Graphs6. GATE ARM
Page 97 and 98: Gate Arm Clearing GraphsFigure 6-3
Page 99 and 100: Technical Support7. TECHNICAL SUPPO

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