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filter on pump clogs reguraly

Discussion in 'Western Plows Discussion' started by dansauto, Feb 10, 2010.

  1. dansauto

    dansauto Junior Member
    Messages: 2

    after sever hours of plowing i notice the blade moving slow in all directions. must pull starter and pump and clean the screen. what can cause this screen to become cloged that often. has new starter motor, problem was there before replacement. its is a older unimount i beleive
  2. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,039

    You need to flush your system thoroughly.

    What plow do you have and with what pump assembly?
  3. dansauto

    dansauto Junior Member
    Messages: 2

    solonoid isarmatic 3a if that makes any sense. how do i go about flushing system? would there be any other reason maybe a colapsed hose or anything like that? looks like i have been spending more than i am making
  4. RepoMan207

    RepoMan207 PlowSite Fanatic
    from Maine
    Messages: 5,039

    It very well could have a collapsed hose, but I don't think that's your issue. If any of your hoses appear collapsed or are...sticky to the touch in warm climate, then their most likely due to be changed out.

    you have an older style pump that has probably seen it's fair share of action. Most plows are lucky to see fresh fluid every year, let alone filters and cleaning. Thus a system full of contaminants. It's a very common thing. Even with perfect maintenance, your still going to have component breakdowns contributing to more contamination. In short, your probably well over due for a good flush.

    As you may or may not be aware; Fisher and Western are pretty much one in the same when it comes to the hydraulics and electrical. The Western Isarmatic is called the SEHP in the Fisher world.

    You want page 5: http://www.fisherplows.com/pdfs/26404_061504.pdf

    Make sure to clean the reservoir out completely with a can of brake cleaner and rags. The build up on the walls will come loose with movement of new fluid, thus clogging your screen again.

    If the problem persists, it maybe time for a new pump.

  5. Crash935

    Crash935 2000 Club Member
    Messages: 2,377

    The other question, what exactly is clogging the filter?
  6. oman1999

    oman1999 Senior Member
    Messages: 198

    We have several Unimounts that clog the filters with aluminum chips. I've checked them up and down without finding the source. We pull the motor and pumps and clean the filters every 3 or 4 plowings.

    Once you get an oil suction set-up to remove the fluid, it goes reall quick.
  7. twinman326

    twinman326 PlowSite.com Addict
    Messages: 1,683

    You might want to check the walls of the casing, and also underneath the pump.. I wonder if your getting metal shavings from the bolt holes??
  8. drp

    drp Senior Member
    from ontario
    Messages: 170

    Metal shavings most likely from the angle cylinder walls.
  9. wild bill

    wild bill PlowSite.com Addict
    Messages: 1,239


    if it's aluminum chips ,your probably loosing the internal pump ! black cotton material would be the cylinder packings going away check the angle and raise ram's for pitting they will wipe out the packing's and go into the screen .