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Old Hy-Hoe

Discussion in 'Old Iron!' started by Dan83, Sep 30, 2008.

  1. Ilio

    Ilio Member

    Joined:
    Sep 30, 2010
    Messages:
    21
    Occupation:
    Construction
    Location:
    Perth Ont. Canada
    Do you have cables or straight linkage going to the spool? I've resolved some sticking issues, that give the illusion of a detent, by servicing these. Also, be it pedal control or lever, there are the bushings on the shaft below the cab floor, including lack of grease. A bur in the mating pieces of metal cam cause sticking. It's unlikely that it would be the plunger, or the spool, but possible. The bore is always full of oil & supported along its entire length. Haven't had mine apart for a while, but there is only one 'O' ring & a wiper at each end of the plunger in the spool body.
    I would also take the cap off at the rear & check the condition of the spring.
    There is an actual 'detent' on the back of the spool, that keeps (returns) the plunger to the 'not engaged/neutral' position, once you release the control lever from the back or forward position. You could have a 'sticking feeling' there, that makes you have to push or pull to overcome it. There are a few ball bearings in there also. This is the only place & the most common place, other than the ones I mentioned, that could cause the plunger to stick.
    If a parts breakdown picture from the parts book would help you I could post that.
    If there is damage there & you can't source the part, I may have one, but I'd check those things first.
     
  2. hammerdwn20

    hammerdwn20 Well-Known Member

    Joined:
    Feb 18, 2008
    Messages:
    224
    Occupation:
    pipeline
    Location:
    pa
    guess it dont look too good inside? not rebuildable?
     
  3. knckitdwn

    knckitdwn Member

    Joined:
    Jun 23, 2019
    Messages:
    6
    Location:
    central illinois
    It has both types of linkages cable and solid rod. I went ahead and pulled the whole valve out. A hose came internally and a bit of wire baked itself up at the valve. I tried doing it in the machine but I made it worse driving the valve out. I took it to a friend who does hydraulics and he polished the high spot or of the valve. So I will be reinstalling it later this week. Hopefully it does not leak to much but we will see.

    I was able to talk to a husco engineer and he sent me the print on the spool if anyone ever needs one made. That may be a winter project if this does not work out well.
     
    DMiller likes this.
  4. hammerdwn20

    hammerdwn20 Well-Known Member

    Joined:
    Feb 18, 2008
    Messages:
    224
    Occupation:
    pipeline
    Location:
    pa
    well how'd you make out?
     
    DMiller likes this.
  5. Rob Stute

    Rob Stute New Member

    Joined:
    Aug 4, 2019
    Messages:
    1
    Location:
    Brussels Ontario
     
  6. td25c

    td25c Senior Member

    Joined:
    Feb 15, 2009
    Messages:
    5,251
    Location:
    indiana
    Here ya go … 1978 3300 HY- Hoe doin it's thing .

    " Draining the Swamp " :)




    Swamp is full of low & high areas . HY- Hoe excavator wades out in the muck & digs a channel through the red tape allowing the water to drain . LMAO ! :D

     
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  7. hammerdwn20

    hammerdwn20 Well-Known Member

    Joined:
    Feb 18, 2008
    Messages:
    224
    Occupation:
    pipeline
    Location:
    pa
    nice hope you keep posting videos of your machines! I subscribed
     
    Ilio and td25c like this.
  8. td25c

    td25c Senior Member

    Joined:
    Feb 15, 2009
    Messages:
    5,251
    Location:
    indiana
    Thanks hammerdwn20 !

    Swampsters are diligent but it's been awhile since they went up against a Hy-Hoe excavator .

    Swamp is draining . LMAO! :D


     
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  9. CatSeller

    CatSeller New Member

    Joined:
    Aug 29, 2019
    Messages:
    1
    Location:
    NW Ohio
    If anyone in NW Ohio is looking for a HyHoe, most likely for parts, there is one about to head to the scrap yard in Fremont, Ohio. I didn't grab the model #, but its a later model one with the typical excavator style undercarriage. I did grab a pic, but I don't know that I can post yet. I'll try. PM me for more info. The boom is quite patchy...
     

    Attached Files:

    Alganon and td25c like this.
  10. hammerdwn20

    hammerdwn20 Well-Known Member

    Joined:
    Feb 18, 2008
    Messages:
    224
    Occupation:
    pipeline
    Location:
    pa
    maybe a model 5000
     
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  11. Ilio

    Ilio Member

    Joined:
    Sep 30, 2010
    Messages:
    21
    Occupation:
    Construction
    Location:
    Perth Ont. Canada
    Hard to tell by the pic, but, if it's a 5000, it'll have 2 upper carrier rollers (per side). The 6000 has 3.
    Looks like a 5000TT
     
  12. knckitdwn

    knckitdwn Member

    Joined:
    Jun 23, 2019
    Messages:
    6
    Location:
    central illinois
    Just finished it up. It's up and going. We filled the scratched and polished it down. It works for now. Since I had all the oil out I went ahead and resealed a leaking track motor and resealed that whole valve body. And wow that thing takes a bunch of oil. I was going 60 gallons would do it just to get by. I was not even close to the sight glad yet.