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Robot joint leaking grease

  • EPeters1
  • January 5, 2022 at 7:18 PM
  • Thread is Unresolved
  • EPeters1
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    • January 5, 2022 at 7:18 PM
    • #1

    One of our robots, an arcmate 120iB, is leaking grease very slowly from where J5 gets greased. Not leaking around the bolt but actually leaking from the edge of the J5 cover plate. I don't want to take the cover off and have everything spill out but I was wondering if there might be a rubber seal around the cover that I can replace or would I need to replace the cover itself?

  • neighbour1
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    • January 7, 2022 at 10:56 AM
    • #2

    There's a rubber seal.

    Just turn the gear up side and take off the cover - in that position, not so many grease will spill out.

  • EPeters1
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    • January 7, 2022 at 1:03 PM
    • #3

    Is there a part number for a replacement i can buy or how do I go about dealing with it?

  • neighbour1
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    • January 7, 2022 at 4:56 PM
    • #4

    Well... I'm not sure whether it exists... sorry...

    I've found part number for the cover, which is A290-7216-X524, but there's no part number for the rubber seal. And unfortunatelly, I don't remember whether it's fixed to the cover or not, could be fixed.

    What I'd do is, to take off the cover and check.

    You can always make the seal from a plain rubber using the scissors, I've done it many times and it works :smiling_face:

  • EPeters1
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    • January 7, 2022 at 5:32 PM
    • #5

    Alright, thanks, much appreciated

  • mortoch
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    • January 7, 2022 at 8:20 PM
    • #6

    Might want to remove grease zerts and drain plugs before removing cover to release any pressure.

  • neighbour1
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    • January 10, 2022 at 12:08 PM
    • #7
    Quote from mortoch

    Might want to remove grease zerts and drain plugs before removing cover to release any pressure.

    No, if properly geased before, there shouldn't be any pressure. It's not the RV reducer, just gears inside, so no problem with pressure.

  • mortoch
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    • January 10, 2022 at 3:02 PM
    • #8

    You said "if". :winking_face:

  • EPeters1
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    • January 10, 2022 at 7:04 PM
    • #9

    I greased all of these personally so if they pop on me I deserve it but good to remember

  • EPeters1
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    • January 17, 2022 at 12:58 PM
    • #10

    A tube of gasket maker did the trick. After opening it there was clearly a break in the gasket, small but there. Cleaned up all the edges, squeezed some of the stuff on and yeah all good. If anyone else attempts this note the curing time on the package, we did ours on Friday at end of shift so it could cure over the weekend.

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