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Mm2 leak and slow raise

Discussion in 'Fisher Engineering Discussion' started by critter, Feb 23, 2015.

  1. critter

    critter Junior Member
    from 01757
    Messages: 29

    First wanted to thank all of u for excellent help over the years sometimes don't even need to post if I have a problem

    But this time us different I have a small leak where the pump attach to the motor is there a seal there?

    Second my plow is intermittently raising slower than normal my lift cylinder is leaking and I will be purchasing a seal kit this am just wondering if that could be causing it or something more? The fluid was changed beginning of the year and it was really doing it Sunday when it was warm [​IMG]
     
    Last edited: Feb 23, 2015
  2. chevyzrule810

    chevyzrule810 PlowSite.com Addict
    Messages: 1,239

    How is the fluid level?
     
  3. dieselss

    dieselss PlowSite Fanatic
    Messages: 11,005

    Yes there's an oring in the tank to pump mounting. If your gunna order parts, look into a filter (kit) And new tank bolts.

    Start with fixing all the leaks and fluid first, then look into the slow raise.
     
  4. critter

    critter Junior Member
    from 01757
    Messages: 29

    Fluid level is good I did change the filter I will get another kit and try that
     
  5. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,139

    I could be wrong but the one leak appears to be coming from the weep hole at the bottom of the motor,if this is the case you have a bad pump seal and it won't be long before your lookin at a new motor,if this is the case the unit is coming apart so you will want a new motor bearing as well which requires a special tool,the seal/bearing kit are under $5,don't bother messing with it without the proper tools.
    As for the lift cylinder,don't waste your money on a seal kit,get part# 48985,it's a new gland nut with an imptorved seal kit already installed,around $20.
     
  6. critter

    critter Junior Member
    from 01757
    Messages: 29


    Here is another pic I cleaned residual oil and with In a hr there is more and i did not move truck the little hole in pic tho does not seem to be where it is coming from, not sure what weep hole ur talking about [​IMG]
     
  7. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,712

    Almost looks like it is coming up past the quill adjustment.
     
  8. Arc Burn

    Arc Burn PlowSite.com Addict
    Messages: 1,139

    Agreed,could be part of the lift issue as well though I'd rather see it constant than intermittent
     
  9. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,712

    Only thing I could think of if it is coming out past the quill is that the check valve is not opening and forcing the fluid past the quill to raise.

    OP open up the quill and see it will raise faster.
     
  10. critter

    critter Junior Member
    from 01757
    Messages: 29


    Definitely coming through the quill I did a little testing so now what should I do
     
  11. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,712

    Start with removing quill and inspecting the o rings.
     
  12. critter

    critter Junior Member
    from 01757
    Messages: 29

    Oh nice thanks, I wasn't sure if there was a oring there hopefully that's it
     
  13. kimber750

    kimber750 PlowSite Veteran
    Messages: 3,712

    Make sure plow is on the ground and ram is down or you may end up with an oil bath.