pearce_jj

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  • in reply to: Bearing water seal lubrication #342986
    pearce_jj
    Participant

    Thanks… I think! The collar and shaft cleaned up OK with an oily rag so hopefully there is life left in the beast yet 🙂

    Cheers

    in reply to: Bearing water seal lubrication #342983
    pearce_jj
    Participant

    Thanks for the reply. The white gunge in the second pic is washing powder gung actually, but thanks for the info.

    The grease choice is confusing…, the high temperature grease I can find is all lithium based so surely will ruin the seal?

    in reply to: Bearing water seal lubrication #342981
    pearce_jj
    Participant

    I was wondering if Castrol Red Rubber Grease be the thing for this job… for use up to 110*C apparently:

    http://www.rgracing.co.uk/TDS/Grease/Re … Grease.pdf

    Many thanks!

    in reply to: Bearing water seal lubrication #342980
    pearce_jj
    Participant

    Many thanks.

    in reply to: Bearing water seal lubrication #342978
    pearce_jj
    Participant

    Hi, thanks.

    The seal is on the drum only for the purpose of the photo.

    Is there any preference on type of grease to use?

    Many thanks indeed.

    in reply to: BOSCH WFP 3300 FAULT CODE F05 #171235
    pearce_jj
    Participant

    Re: BOSCH WFP 3300 FAULT CODE F05

    I’ve had *exactly” the same experience replacing the brushes in this machine (WFP3300GB01).

    Brushes wore out after 7 years – machine had the curtosy to finish the load and then errored on the next. Braided cable just poking through the end of one of the brushes, the other one pretty worn as well.

    I ordered the recommended brushes & comstick, disassembled, cleaned, reassembled. For the benefit of others, the brush springs can be held back using (i.e.) the motor bolts through the back of the end cap in order to provide clearance to go over the tachometer. And the replacement brushes can get their power from the exposed brass they mount into.

    However upon reinstallation the motor was a lot more noisy. A bit whirry.

    Although I initially put it down to the brushes needing to wear in I took a look after about 3 months. One of the brushes was already about 50{e5d1b7155a01ef1f3b9c9968eaba33524ee81600d00d4be2b4d93ac2e58cec2d} worn.

    The whirring is detectable “on the bench” spinning by hand, and occures without any brushes. I think the rear bearing next to the brushes is failing. It seems likely that I damaged it pulling the motor apart. However why the brushes should be wearing so quickly is not so clear. Perhaps these brushes simply have the wrong carbon content for this motor? Or require a greater spring pressure?

    The commutator now has a light shiny film visible on one side of each strip but what looks like lack of contact on the (trailing?) edge.

    Looks a bit like bar edge burning here:
    http://www.gulfelectroquip.com/technica … commutator

    All very confusing and very dissapointing. As with the OP, it looks like motor failure will kill this superb machine with Bosch wanting insaine money for a replacement.

    Cheers.

Viewing 6 posts - 46 through 51 (of 51 total)