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Muncie Central Hydraulics Problem

Discussion in 'Commercial Snow Removal' started by northernsweeper, Oct 30, 2004.

  1. northernsweeper

    northernsweeper Senior Member
    Messages: 397

    I bought an 89 f350 with the muncie central hydraulic system.I turned the hydraulics on when I first got the truck,everything operated o.k but the system was constantly making a loud whining noise.The very next time I turned the system on....nothing. The light comes on to show power,but I can't hear any noise at all and none of the hydraulics do anything. Fluid level is good. engine belts are good. Any ideas?? All thoughts are appreciated. :dizzy:
     
  2. 04superduty

    04superduty PlowSite.com Addict
    Messages: 1,354

    if the sound was coming from the pump and now it doesnt do a think you might have fried the pump.
     
  3. Jon Geer

    Jon Geer Member
    Messages: 834

    Does the pump have a clutch?, if so, check all electrical connections. Also, you could have sheered the key. Couple of things to look at. :cool:
     
  4. northernsweeper

    northernsweeper Senior Member
    Messages: 397

    Thanks for the ideas john.I'll post when I find out.
     
  5. northernsweeper

    northernsweeper Senior Member
    Messages: 397

    04 I don't know if its the pump,it wouldn't suprise me if it was bad. The noise seemed to come from the whole system though, so I am hopefull.
     
  6. northernsweeper

    northernsweeper Senior Member
    Messages: 397

    I looked at the truck again this a;m. What I found was,the clutch on the pump spins when the hydraulics are turned on,so it must be getting power.It acts as though its just not pumping.Would I pull the outlet line off the pump,to determine if the pump is working? Could it be a plugged or perhaps iced up filter? Are there signs to look for that would pinpoint the problem to the pump?Thanks for the input here.I have had no experience with a central hydraulic system and a rocket scientist I am not. :help:
     
  7. wirenut

    wirenut Senior Member
    from nh
    Messages: 508

    :dizzy:
    are you shure it has enough fluid
     
  8. Jon Geer

    Jon Geer Member
    Messages: 834

    Check the fluid level, when that is up to level tee in a pressure gauge on the pressure side to see if it is pumping. Not pumping? You then might have a cashed pump. Check and or replace the filter also. See if that helps. :cool:
     
  9. trashman

    trashman Junior Member
    from Vermont
    Messages: 3

    Is the truck a stick or auto?
     
  10. northernsweeper

    northernsweeper Senior Member
    Messages: 397

    The truck is an auto trans. I have the sight level tube on the tank.It is about 3/4 full/cold in the tube. I don't have a pressure gauge John.Could I unhook the out line from the pump and find out if its pumping that way?