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Replacing lift cylinder (plunger) in Unimount?

Discussion in 'Western Plows Discussion' started by LIBERTYLANDSCAP, Nov 26, 2007.


    Messages: 30

    I've got a unimount with a pitted lift cylinder & need to change it. Any one else have any experience doing this? Is the large retaining nut around the cylinder all that needs to be taken loose? Looks like cylinder has 2 "keys" at the bottom as retainers...
    Any pointers are appreciated! :salute:
  2. wild bill

    wild bill PlowSite.com Addict
    Messages: 1,239


    the split ring retain the ram when it is extended ,take the big nut off ,you might have to file around the lift arm bolt hole to get the nut to slide past the bolt hole ,take a pry bar about 20-24" long as big as the bolt hole and pop upward's the ram should pop out .replace the new ram in the power unit ,put the new packing's one at a time with the vee pointed upward's.bottom adapter then vee's .top adapter ,new wiper in packing nut, almost forgot soak the new seal in plow oil about 10 minutes first, then tighten down the nut ,pretty tight

    Messages: 30

    :waving:Thanks for the info!
  4. B&B

    B&B PlowSite Fanatic
    Messages: 12,777

    One other tip:

    Make sure to lubricate the threads real good in the top of the lift housing as you'll be tightening the packing nut into the aluminum threads in the housing to compress the new packings and it's real easy to ruin the threads in the soft cast housing...