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Plow blade keeps falling?

Discussion in 'Truck & Equipment Repair' started by topspd7, Jan 19, 2010.

  1. topspd7

    topspd7 Junior Member
    Messages: 15

    I have a 1987 Dodge W100 with an underhood set-up and a Meyers 7.5 blade..........the blade slowly drops....last year I bought a new ram piston that was much smaller and still had the same problem.....so I put the original one back on and eventually it stopped dropping.....Is this some kind of bleed issue? My big problem is that I cant seem to find any documentation on this plow.....other that that it works fine it may have a small hyd fluid leak but I'm afraid to do anything to it because I don't have a manual. I would appreciate any help..the truck only has 82k and I just put in a new tranny.........:help:
  2. ppkgmsy

    ppkgmsy Member
    from Vermont
    Messages: 73

    . If you tried a new piston and still have the same problem, you could have a leak in your valve control body. I had a similar situation and found a used body for $50 that works great.
  3. nate456789

    nate456789 Senior Member
    from Indiana
    Messages: 194

    Before you do that try changing the O rings on the valves.
    I had that issue and went thru and changed the O rings and it works fine now.

    Make sure you get good O rings made for Fuels and Chemical use.
    The additives in the Hydro Oils are pretty strong.
  4. topspd7

    topspd7 Junior Member
    Messages: 15

    thanks for the help !!!!