Leaded & Pad Series YieldPro - Johnstech

Cleaning & Maintenance FrequencyLeaded & Pad SeriesYieldProWorn and Bent SlidersSIDE VIEW OF BENT AND WORN SLIDERSCorrect Housing and AlignmentPlateTOP VIEW OF BENT AND WORN SLIDERSWorn Housing and AlignmentPlatePeriodic MaintenanceDuring periodic maintenance of thecontactor, perform this inspection:1. Before you remove the contactorfrom the load board, use aminimum of 10x magnification toinspect the contactor, sliders, andframes for signs of the following:• Damaged, missing, or excessivelyworn sliders• Solder and mold flash trappedbetween sliders and frames• Fatigue, i.e., cracks or chipping,on the contactor housing or thealignment plate• Worn alignment plate, usually dueto the device rubbing onalignment plate walls• Worn handler alignment pin holes(contact Johnstech for bushingsto reduce wear on the contactor)CAUTION: Please use special carewhile inspecting. The elastomer andcontact slots are fragile andexcessive force can fracture the slotwalls.WORN ALIGNMENT PLATEHOUSING AND ALIGNMENT PLATES SHOULD NOT SHOW SIGNIFICANT WEAR; HOWEVER MISALIGNED DEVICEPRESENTATION WILL WEAR AWAY THE TORLON ® .2. If you notice significant wear orcracking in the contactorhousing, please contactJohnstech’s ApplicationsEngineering Department.Johnstech International Corporation1210 New Brighton BoulevardMinneapolis, MN 55413-1641 USATel 612.378.2020 Fax 612.378.2030www.johnstech.com2004 Johnstech International Corporationall rights reserved5