THanks Guy for your help, What type of metal was used in the contacts?? Did you specify the lubricant before?? Regards Raúl Valdéz. -----Original Message----- From: Guy Ramsey [mailto:[log in to unmask]] Sent: Friday, August 03, 2001 12:24 PM To: TechNet E-Mail Forum.; Valdez, Raul (R.) Subject: RE: [TN] Encoder with contamination.Soldering or Supplier process. Yes, years ago. Our supplier used a type of lubricant that broke down with age. We special ordered the encoder without lubricant there after. They worked fine without for many years. Some, I am sure, are still in use. Guy Ramsey Senior Lab Technician / Instructor E-Mail: [log in to unmask] <mailto:[log in to unmask]> Ph: (610) 362-1200 x107 Fax: (610) 362-1290 -----Original Message----- From: TechNet [mailto:[log in to unmask]]On Behalf Of Valdez, Raul (R.) Sent: Friday, August 03, 2001 1:30 PM To: [log in to unmask] Subject: [TN] Encoder with contamination.Soldering or Supplier process. Hello, We are using rotary switch encoders on our application and they are failing, after some were opened, certain kind of yellow grease was found, we are not sure if that's flux since the encoder is being soldered to the board thru wave soldering. After cleaning the "defective" encoder with alcohol the encoder works fine. Anyone has had a similar experience?? soldering process or encoder supplier fault?? Please help. Thanks. Raúl Valdéz. ---------------------------------------------------------------------------- ----- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------- ----- --------------------------------------------------------------------------------- Technet Mail List provided as a free service by IPC using LISTSERV 1.8d To unsubscribe, send a message to [log in to unmask] with following text in the BODY (NOT the subject field): SIGNOFF Technet To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315 ---------------------------------------------------------------------------------