Maintenance & Inspection Guide Edge 400A Series - Johnstech

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Edge 400a SeriesContactor/Component InspectionContact InspectionContacts have a recommended lifespan of 500,000 insertions*.If you know that the Contacts have run their recommendedlifespan, Yields start falling off and cleaning doesn’t help,or you can see that wear exceeds 0.10mm, replace with newContacts. Using a microscope, inspect Contacts for:Figure 14: Example ofScratched Contacts; replace• Scratches/Scars (see Figure 14)• Gouges (see Figure 15, 16)• Wear (see Figure 16)• Distorted Shape (see Figure 17)Figure 15: Example of GougedContacts; replaceThe kind of damage listed above and shown in the correspondingphotos is usually caused by non-parallel or offset Modulepresentation in the X- & Y-position, or both (refer to Page16 for more information on Module Presentation and X- &Y-positioning); or the Module is wider than or warped beyondJEDEC specifications (refer to Page 16 for more informationon this). It is also recommended that you discard the usedContacts and replace with new ones.• FR-4 or other Debris Buildup (see Figure 18)Figure 16: Profiles of Wornand Gouged Contacts; replaceDebris buildup usually happens when a Contactor has gone toolong without cleaning, the Module insertion is off or it is toowide or warped. Start with a Thorough Cleaning (procedureis given on Page 19) and check if there is damage to otherComponents. If so, the Handler presentation of the Modulemay need to be adjusted.Figure 17: Example of DistortedContact ShapeFigure 18: Example of DebrisBuildup; cleanwww.johnstech.com©2009 Johnstech International CorporationAll rights reserved.14* Life Cycle specifications can vary based on any number of variables.
Contactor/Component InspectionEdge 400a SeriesElastomer InspectionElastomers should last to 300,000 insertions*. Using at least10X+ magnification, inspect Elastomers for signs of:• Stretched Sections• Cuts or Tears (see Figure 19)• Compression Set (see Figure 20)Compression Set should not exceed 0.05mm (0.002 inches)Figure 19: Example of CutElastomer; replace
Page 1 and 2: Maintenance& InspectionGuideEdge 40
Page 3 and 4: Table of ContentsEdge 400a SeriesSt
Page 5 and 6: Contactor ComponentsEdge 400a Serie
Page 7 and 8: Contactor Configuration & Verificat
Page 9 and 10: Recommended Maintenance ToolsEdge 4
Page 11 and 12: Contactor Installation and RemovalE
Page 13: Contactor/Component InspectionEdge
Page 17 and 18: TroubleshootingEdge 400a SeriesThis
Page 19 and 20: Contactor CleaningEdge 400a SeriesT
Page 21 and 22: Contactor ReassemblyEdge 400a Serie
Page 23 and 24: NotesEdge 400a Series23©2009 Johns

Maintenance & Inspection Guide Edge 400A Series - Johnstech

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