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speedcast return hose size question

Discussion in 'Truck & Equipment Repair' started by pl-frm, Dec 1, 2011.

  1. pl-frm

    pl-frm Junior Member
    Messages: 2

    1st post and 1st time plow install here. I just bought all new hoses for an old Fisher speedcast fully hydraulic plow that's being installed on an old Blazer. The original pump-valve low pressure white return hose is 3/8" and all my new hoses are 1/4". My question is do I need to have a 3/8" return hose or will the new 1/4 hose be sufficient.

    Thanks in advance.
  2. no lead

    no lead PlowSite.com Addict
    Messages: 1,308

    i would go with 3/8 back to tank. it will not be full pressure on the return side but will flow more volume. thus the larger hose.
  3. second income

    second income Member
    Messages: 82

    The bigger hose will put more fluid in the reservoir faster keeping it a bit cooler. It will also reduce aeration in the tank.
  4. 2COR517

    2COR517 PlowSite Fanatic
    Messages: 7,115

    A piece of 3/8 transmission cooler line works fine with a couple clamps.
  5. pl-frm

    pl-frm Junior Member
    Messages: 2

    Thanks for the replies. Makes sense...I figured it was bigger for a reason. I'll just get the right 3/4" hose and keep the 1/4" for a spare.

    The guy that sold me the hoses looked at the valve and pump with the old hoses and used the reasoning that the fitting going from the 3/8" hose into the pump was reduced to 1/4" at the pump side. Probably just didn't have any 3/8" hose...I will have to take a closer look at the fitting when I pull the old hoses off this weekend.

    Thanks again.