Cisco Systems 159330, 124792, 124778 manual Replace GMT Fuses, Removing a GMT Fuse

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Chapter 3 Component Replacement

3.2.5 Replace GMT Fuses

3.2.5 Replace GMT Fuses

Step 1 Locate the GMT fuse that is to be removed.

Step 2 Grasp the fuse firmly at the front and pull out (Figure 3-10).

Figure 3-10 Removing a GMT Fuse

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Step 3 For information on installing GMT fuses, see the “2.5.1 Install GMT Fuse Connections” procedure on page 2-25.

Caution When replacing GMT fuses, always use the same size fuse unless the GMT fuse output cabling is upgraded as well. For more information on the appropriate cable/fuse sizes, see Table 1-2 on page 1-6.

Cisco AC/DC Power System User Guide, R1.0

3-10	May 2006

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Contents Cisco AC/DC Power System User Guide Corporate HeadquartersCisco AC/DC Power System User Guide, Release N T E N T S System Operation Add Modules Contents Cisco AC/DC Power System User Guide, R1.0 Two-Inch Clearance Around Front Ventilation Opening Viii Supplied Materials for the System Shelf Tables Cisco AC/DC Power System User Guide, R1.0 Document Organization Document ObjectivesAudience Document Conventions Convention ApplicationWhere to Find Safety and Warning Information Obtaining DocumentationCisco.com Ordering DocumentationCisco Technical Support Website Documentation FeedbackObtaining Technical Assistance Submitting a Service Request Definitions of Service Request SeverityObtaining Additional Publications and Information Introduction System DescriptionSystem Shelf LCDRectifier Modules Introduction Rectifier ModulesGMT Fuses 4 1 RU Distribution ShelfSystem Configurations 1 RU Distribution ShelfElectrical Value General SpecificationsFrom Wire Gauge Ampacity Status & Alarms Description Protection DescriptionMechanical Description Environment DescriptionSafety Recommendations Compliance DescriptionInstallation Warning Operating Temperature WarningsElectrical Safety Warnings Two-Inch Clearance Around Front Ventilation OpeningIntroduction Electrical Safety Warnings May Tools Required Pre-InstallationGround Symbol Description Qty Use Installation and Commissioning ChecklistInstallation Materials Install AC/DC Power System Components Install the System Shelf Cisco AC/DC Power System Front ViewInstalling the System Shelf Install the 1 RU Distribution Shelf 1 RU Distribution Cable DressingInstall the Communications Cabling Optional Install the DC Power Cabling Optional Install the Ground Cable Installing 1 RU DC CablingInstall the Cabinet/Rack Ground Install the 1 RU Distribution Shelf Ground Install AC Power Cables 11 Installing the 1 RU Distribution Shelf GroundSystem Installation Install AC Power Cables 12 Installing the AC Cable Shelf 13 Routing AC Cables Install the Rectifiers 14 Installing a Rectifier Install Circuit Breakers 15 Removing a Rectifier Blank Faceplate16 Circuit Breaker On/Off Positions 18 Installing a Circuit Breaker System SizeInstall the Alarm Cable 19 Removing the Controller Faceplate Without LCD Alarm Designation Jumper System withInstall Load-and-Return Connections Wire Gauge Stranded ApplicationsInstall GMT Fuse Connections Install 1 RU Distribution Shelf Load Connections 23 Installing GMT CablingA2 A1 Return Load System Upgrades Small to Medium System UpgradeMedium to Large System Upgrade Small to Large System UpgradeMay Replace the 1 RU Distribution Shelf SafetyComponent Replacement Removing the 1 RU DC Cable Replace the Controller Tray Removing the 1 RU Distribution ShelfRemoving the Controller Faceplate J15 terminal block J14/J13 terminal blocks Replace Circuit Breakers Circuit Breaker On/Off PositionsRemoving the 1 RU Distribution Shelf Faceplate Replace a Rectifier Removing a Circuit BreakerRemoving a Rectifier Replace GMT Fuses 10 Removing a GMT FuseSystem Commissioning General InformationAlarm Interface Board and Connections Basic Controller FunctionsRemove Modules May System Troubleshooting Tripped breaker Fuse blown Module Locations Page System Parts List Description Part NumberPage Translated Safety Warnings Statement 12-Power Supply Disconnection WarningAppendix a Translated Safety Warnings Statement 43-Jewelry Removal Warning Appendix a Translated Safety Warnings Appendix a Translated Safety Warnings Appendix a Translated Safety Warnings Appendix a Translated Safety Warnings Page Statement 1017-Restricted Area May Statement 1024-Ground Conductor Appendix a Translated Safety Warnings Statement 1030-Equipment Installation Statement 1033-SELV-IEC 60950 DC Power Supply Statement 1047-Overheating Prevention Appendix a Translated Safety Warnings Appendix a Translated Safety Warnings