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Managing 12 Volts: How to Upgrade, Operate, and Troubleshoot 12 Volt Electrical Systems

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Cleaning the AFM (compilation)
From: Marshall Ruskin
Model/Type:  All AFM Models

Marshall On Cleaning the AFM (compilation)
(1) First remove lid of AFM, the hardest part of this job, as it was held on with a silicone seal, obviously never opened before. I ran a utility knife around the seal to cut it. Then I slowly and carefully pried it open using a screwdriver. I think if you rush this you risk breaking the lid. Start with a corner and don't force it ? you could break the cover if you worked too fast. You'll struggle for a while, then the seal will give, and the thing will essentially peel off.
(2) Never having seen the internals, I was surprised at how delicate it is. Like the inside of a watch!
(3) Anyhow, tracks in the resistive surface were clearly visible. I sprayed it with a liberal amount of electronic cleaner spray, and moved the wiper across the track several times while it was still wet. (Today I cleaned the inside of my AFM with Motomaster electronic spray cleaner.)
(4) I also ensured that the central contact pivot, which rides above the assembly on a post, was also clean.
(5) When dry, I closed the lid, and sealed it with electrical tape to keep it clean and closed.
(6) I am a believer and you will be too. Thanks to Debbi (MtnGal) for this suggestion!
Marshall Ruskin 84 Westy "Iron Igloo" Founding Member of "Vanagon's Anonymous"

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