Logsplitter problem

Ohiogal Posted By Ohiogal, Aug 12, 2017 at 5:19 PM

  1. Ohiogal

    Ohiogal
    New Member 2.
    NULL
    

    Aug 12, 2017
    4
    4
    Loc:
    Middletown, OH
    Hi all;

    I'm new here, so bear with me.
    I bought a used, but very heavy duty log splitter last year - got it home and waited a few months to use it as I bought it during the Summer. Guess what it was not able to split any log over 8".
    So I tore it down and replaced many parts, the pump with a 3500 psi model, a new valve for the same, and had the 5 1/4" piston checked in a certified shop. The piston checked out fine. I reassembled it and replaced a few of the hoses, flushed the lines, filled the hydraullic tank, and started it up. Started up and ran fine which is a plus. Its a 12 h.p. engine.
    The problem I'm having is odd, apparently the ram will retract fine when the engine is started, but it will not push forward at all now when running. There is no binding on the beam at all. It operates very smoothly when it does operate.
    If I reverse the lines on A and B, the ram will extend to the max, but will not retract.
    I have no detent adjustment on the valve. The valve was purchased from Northern Tool, made in USA. It was supposed to be a detent valve and when you engage the pump by pushing the lever forward, to push the piston forward, you can hear the pump strain but nothing happens. The valve can then be snapped backwards but there is no "auto return".
    At this point I'm at a loss as to why I can't get the darned thing working. I have wood to split!
    Anyone have any ideas what to check? I've nearly replaced the whole thing other than the wedge and the I beam.

    *update* OK, basic question here. I have a double acting cylinder (Piston) on it - its massive. I bought a single action valve from Northern Tool basically because I didn't know any better....is this the reason why if I change the lines on A and B I get the same results but in different directions? I need it to push/pull, not push, or just pull. Can I use a single acting valve on this at all?
     
  2. duramaxman05

    duramaxman05
    Feeling the Heat 2.
    NULL
    

    Aug 17, 2014
    250
    43
    Loc:
    Perryville, Mo
    A single acting cylinder should only have pressure one way and gravity the other way. Our 15ft batwing bush hog uses the same single acting cylinders. It uses hydraulic power to raise the mower and wings, but uses gravity to lower. Sounds like you need a new double acting cylinder.
     
    Lone_Gun likes this.
  3. Ohiogal

    Ohiogal
    New Member 2.
    NULL
    

    Aug 12, 2017
    4
    4
    Loc:
    Middletown, OH
    Even if I had the cylinder checked out at a qualified shop? They pressure tested it and said it was fine. I'm thinking that the problem is in the valve.
     
    duramaxman05 likes this.
  4. duramaxman05

    duramaxman05
    Feeling the Heat 2.
    NULL
    

    Aug 17, 2014
    250
    43
    Loc:
    Perryville, Mo
    It could be in the valve. Even though its new, it could still be bad. I have had new stuff that was bad. The original cylinder that was on it, did it only go one way? What happens whe. You reverse the hoses on that cylinder?
     
  5. brenndatomu

    brenndatomu
    Minister of Fire 2.
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    Aug 21, 2013
    2,521
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    Loc:
    NE Ohio
  6. Jags

    Jags
    Moderate Moderator 2.
    NULL
    
    Staff Member

    Aug 2, 2006
    17,644
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    Loc:
    Northern IL
    If the above info is accurate you have a double acting cylinder with a single acting valve. Yes - this is why it only works in one direction. You need a double acting valve. Buy one that is called "a log splitter valve" and you should have all your bases covered.

    ETA - pay attention to the port sizes of the valve compared to your hose fittings. Match them for the easiest install, otherwise you may need a couple of adapters which is still no big deal.
     
  7. Ohiogal

    Ohiogal
    New Member 2.
    NULL
    

    Aug 12, 2017
    4
    4
    Loc:
    Middletown, OH
    Thank you all so much! I will buy and install that and hopefully I have my log splitter functional! :)
     
    Lone_Gun likes this.
  8. Ohiogal

    Ohiogal
    New Member 2.
    NULL
    

    Aug 12, 2017
    4
    4
    Loc:
    Middletown, OH
    Thank you again! I received and installed the new valve and fired it up and it split wood perfectly! So happy to have it back working now you'll know what I'm doing this weekend. :)
     
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  9. Jags

    Jags
    Moderate Moderator 2.
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    Staff Member

    Aug 2, 2006
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    Loc:
    Northern IL
    Glad it all worked out. Now get to splitt'in.
     
    Lone_Gun likes this.

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