Pad ROLâ¢ 200 XT - Johnstech

More documents

Recommendations

Info

Pad ROL 200 XT CONTACTOR CLEANINGThorough Cleaning ProcedureIf the contactor and alignment plate have excessive debris buildup, it is stronglyrecommended to perform a thorough cleaning with an ultrasonic cleaner. Onlyexecute this procedure in a well ventilated area with an exhaust hood.Figure 20: Example of cleaninga housing in an ultrasoniccleaner; note left position.Figure 21: Example of rinsing ahousing in an ultrasonic cleaner;note right position.CAUTION: The ultrasonic cleaner should have a maximum power of 500W and acatch basket in the tank that prevents the contactor from touching settled debris.Step 1: Prepare the Housing• Remove the contactor from the load board per instructions on Page 13, Step 1.• Gently pry apart the housing and alignment plate per instructions in Step 2 on the opposite page.• Remove ground insert if contactor has one. Refer to ground insert remove instructions on Page22.• If contacts and elastomers require replacement for either the housing or ground Insert, removedthe used contacts and elastomers.• If the contacts and elastomers are in good condition they can be left in the housing during thefollowing cleaning procedures.Step 2: Prepare the Bath• Prepare a bath of diluted Isopropyl Alcohol (70/30 Alcohol/Water) OR a heated (40-50ºC max)mild acidic (7.1 > ph > 3.0) solution.NOTE: If a sonic cleaner is unavailable, gently brush the housing with bathsolution (see above), rinse in deionized water and dry housing out completely.Step 3: Perform the Cleaning (Operate Ultrasonic Cleaner per Manufacturer’sInstructions only).• Fully immerse the populated or unpopulated housing device-side down. The bath should be preheatedand run for a minimum of a 30 minute cycle (see Figure 22).• Also, place the alignment plate and the ground insert into the bath.• Remove housing, alignment plate and ground insert from the bath and sonic rinse and rinse withdeionized water for about 10 minutes (see Figure 23).NOTE: For populated contactor housings or populated ground inserts, inspectfor missing contacts before moving then to the rinse bath. Some contacts maydislodge during the ultrasonic cleaning. Collect them and move them to the rinsebath and then reinstall before drying.16www.johnstech.com©2012 Johnstech International CorporationAll rights reserved.
Pad ROL 200 XT CONTACTOR CLEANINGStep 4: Dry the ContactorCurrent leakage may occur during testing if moisture remains on the contacts. Toprevent this:• Carefully pat the contactor dry with a lint-free cloth.• Blow the contactor dry with heated air (see Figure 22).• If necessary, place in oven for approx. 10 minutes.CAUTION: DO NOT use heat guns to blow contactors dry. Heated air should notexceed 100ºC or be utilized for longer than 30 minutes.Figure 22: Heated air drying with acommon hair dryer will suffice.Step 5: Reassemble the Contactor• Reassemble the contactor per instructions on Pages 17-18.Step 6: Reinstall Contactor• Inspect contactor one final time for any debris, damage or moisture.• Remount contactor to load board per instructions on Page 13, Step 4.www.johnstech.com©2012 Johnstech International CorporationAll rights reserved.17
Page 1 and 2: PAD SERIES TEST CONTACTORXT NEWPad
Page 3 and 4: Pad ROL 200 XT STANDARD PRODUCT IN
Page 5 and 6: Pad ROL 200 XT CONTACTOR INDENTIFI
Page 7 and 8: Pad ROL 200 XT RECOMMENDED TOOLSFo
Page 9 and 10: Pad ROL 200 XT PRE-MAINTENANCE TRO
Page 11 and 12: Pad ROL 200 XT LOAD BOARD & CONTAC
Page 18: Pad ROL 200 XT ELASTOMER INSTALLAT
Page 22 and 23: Pad ROL 200 XT GROUND INSERT MAINT
Page 24 and 25: Pad ROL 200 XT GROUNDING INSTALLAT

Pad ROLâ¢ 200 XT - Johnstech

Create successful ePaper yourself

Delete template?

Save as template?

Pad ROLâ¢ 200 XT - Johnstech