SM-6495 - Ansaldo STS

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General Maintenance and Troubleshooting5. Install cable grip conduit for gate arm lights cable, included with gate mechanism.6. Install pedestrian gate arm adapter (P/N M46705801) on shaft, insert key into key way, and tightenset screw in adapter.7. Install 3’ aluminum sleeve, weight, and gate arm.2.2.2. Pedestrian Gate Shield InstallationNOTEHighway Crossing Gate Mechanisms manufactured after April 1, 2003,are supplied with the pedestrian gate shield. For models manufacturedbefore this date, a shield kit (Part Number X46712202) can be orderedfrom US&S to add to existing pedestrian gate mechanisms. The kitincludes the shield and necessary mounting hardware.1. Lower the pedestrian gate arm to its horizontal position.2. Disconnect electrical power from the gate mechanism and comply with all railroad/transit authorityprocedures for maintenance lock out/tag out safety instructions. (See Section 3 for additionaldetails.)3. Remove the four screws, washers, and nuts securing the pedestrian gate arm to the cast aluminumadapter arm.4. Position the shield on the side of the pedestrian gate arm opposite the gate mechanism. Insert four(4) 3/8 x 3” screws (P/N J5073490148) and four lock washers (P/N J4751210113) provided withthe shield through the gate arm/adapter arm holes with the screw head towards the counterweightarm. Install the flat washers (P/N J4751200114) and nuts (P/N J480218) on the screws.5. Align the bottom of the shield with the bottom of the pedestrian gate arm and finger tighten thefasteners.6. Using the two holes on the far right of the shield as a guide, locate the corresponding holes in thepedestrian gate arm and punch through the gate arm tape to open the holes.7. Install two (2) screws, lock washers, flat washers, and nuts through these holes.8. Tighten all screws.9. The completed installation will be as shown in Figure 2-1. Return the gate mechanism into service.2-4 SM 6495, Rev. 7, December 2008
General Maintenance and TroubleshootingCOUNTERWEIGHTSGATE ARMSUPPORTCONVERSIONBRACKETASSEMBLYPEDESTRIANGATE ARMSHIELDHIGHWAYCROSSINGGATE ARMPEDESTRIANCROSSINGGATE ARM5A1.0011.00Figure 2-1 - Completed Pedestrian Crossing Gate Arm Shield Installation2.3. Power and Control WiringA maximum of 0.1 ohm resistance is allowed between the battery and the mechanism terminals. Thewiring requirements are given in Table 2-2:Table 2-2 - Battery and Wire RequirementsDistance from Battery to MechanismCable Conductor SizeUp to 60 feetNo. 9 AWG60 to 120 feet No. 6 AWG120 to 250 feet No. 4 AWG (or 2 #6 AWG)Number of Cells (12-Volt System)Gate Arm Length Lead Nickel-Iron Nickel-CadmiumUp to 24 feet 6 9 925 to 42 feet 7 11 11Number of Cells (24-Volt System)Gate Arm Length Lead Nickel-Iron Nickel-CadmiumUp to 24 feet 12 18 1825 to 42 feet 14 22 22For more detailed information, refer to Section 6. These three curves are based on the maximum gatearm clearing times of 10, 15, and 20 seconds. These times are relative to the minimum voltage forvarious cell quantities of lead acid batteries and nickel iron or nickel cadmium batteries. The curvesrepresent maximum gate arm clearing times relative to minimum battery cell voltages. Fully chargedbatteries will decrease the time it takes for the gate arm to clear.SM 6495, Rev. 7, December 2008 2-5
Page 1: 1000 Technology Drive, Pittsburgh,
Page 4 and 5: Revision HistoryRevision HistoryRev
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Page 8 and 9: Table of Contents3.2.9. Power Down
Page 10 and 11: Table of ContentsFigure 5-11 - Mode
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Page 14 and 15: IntroductionSIDEWALK GATEHIGHWAY CR
Page 16 and 17: IntroductionNOTEHighway crossing ga
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Page 56 and 57: Optional Equipment4-2 SM 6495, Rev.
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Page 66 and 67: Parts List255245250235353 23IMPORTA
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Parts ListFigure 5-9 - Model 95 Sid
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Parts ListItem Part NumberPart Desc
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Parts ListItemNumberPart Number340*
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Parts List5.6. PN-150 Electrical As
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Parts List125202513012015525 20 15
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Parts ListItem Part NumberPart Desc
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Parts List5.8. Non-Vital Pedestrian
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Parts List5.9. Model 95 Maintenance
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Parts List5.10. Tool Kit (N46707001
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Parts List5.13. Power Down Module U
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Parts List5.16. Gate Arm Light Fuse
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Gate Arm Clearing Graphs6. GATE ARM
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Gate Arm Clearing GraphsFigure 6-3
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Technical Support7. TECHNICAL SUPPO
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SM-6495 - Ansaldo STS

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