Fluke 189 Clean-up

No repairs required for this unit, just some clean-up.  The external clean-up has been documented in blog post Dirty Multimeter Clean-up, so most of the photos have been moved there.

Leaky capacitor issue discussion at EEVblog.  There is also a video by Martin Lorton on the topic.

10 Responses to Fluke 189 Clean-up

  1. Pramod Pandey says:

    I need the knob of Fluke 189 as the contacts are miplaced.

  2. Richard Gillego says:

    i lost may Fluke 189 rotary switch contacts… can buy that things tnx..

  3. Dennis Bujan says:

    Do you know where I can gets the battery terminal contacts strips, the whole set, like the ones you place on photograph 17????

  4. Lefebvre says:

    My experience: I just repaired my Fluke 187. I had minor issues with some contacts (screen and power supply).
    It took time till I realised that the rotary switch contacts can easily be lost during operation. Strangely, with one of them lacking, the Fluke seemed to work but could not switch off.
    Thus, be very careful with these switch contacts when opening the device.

  5. asea asa says:

    Please tell me. How can you dissasemble the knob ? From where you pull the plastics ?
    I am afraid that I will broke something but there is much dirt beneath and I must open it!

    • modemhead says:

      This is the way I do it: Support the front cover, face down, on your work surface with two paperback books of equal thickness. Leave the area under the knob clear. Then take a banana plug and push down on the gray hex shaft. You may have to push hard, but it will pop out. Be careful not to lose those rotor contacts, they’re hard to obtain.

  6. Peter Veiga says:

    Does anybody know the replacement part number for the ceramic chip capacitor
    that is connected to the Big green 100k Ohm resisters? You have a good picture of them in the third photo. One is positioned vertical and one is horizonal.

    Thanks

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