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Old 11-12-2016, 08:33 AM   #1
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BIRD isolator relay ( older style)

For those considering cleaning the contacts on their relays, here is what one looks like disassembled.

This happens to be the same as 2 on our older 1999 MADP that drive the Cummins intake heater grids. This relay located under the bed, above the engine on the passenger side rail had corrosion on the external threads causing it to trigger a yellow fault light on the dash (per code) so it was replaced with a new one. This is the old one I rebuilt and tested for a spare. Guts pull out once nuts are removed and tabs bent back with screwdriver. Once reassembled after cleaning the contacts. A larger pair of channel locks work great to bend opposing metal tabs back in place.Click image for larger version

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ID:	144160Click image for larger version

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Old 11-12-2016, 08:38 AM   #2
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Quote:
Originally Posted by Qwert66 View Post
For those considering cleaning the contacts on their relays, here is what one looks like disassembled.

This happens to be the same as 2 on our older 1999 MADP that drive the Cummins intake heater grids. This relay located under the bed, above the engine on the passenger side rail had corrosion on the external threads causing it to trigger a yellow fault light on the dash (per code) so it was replaced with a new one. This is the old one I rebuilt and tested for a spare. Guts pull out once nuts are removed and tabs bent back with screwdriver. Once reassembled after cleaning the contacts. A larger pair of channel locks work great to bend opposing metal tabs back in place.Attachment 144160Attachment 144161

Forgot this pictureClick image for larger version

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Old 11-12-2016, 11:06 AM   #3
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Good info, but, your workbench is a little too flowery for me.
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Old 11-13-2016, 09:59 PM   #4
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Thanks for the pictures and posts Qwert66 will add to a related thread.
Maybe someone else will want to clean a relay up.
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