• Thank you for visiting HeavyEquipmentForums.com! Our objective is to provide industry professionals a place to gather to exchange questions, answers and ideas. We welcome you to register using the "Register" icon at the top of the page. We'd appreciate any help you can offer in spreading the word of our new site. The more members that join, the bigger resource for all to enjoy. Thank you!

Search results

  1. Ratmotorhead

    Swing problem

    Hello guys I hope all are dealing with new year and winter well. Linkbelt 4300c excavator when swinging clockwise or counterclockwise swingbrake will come on hard. If I barely move lever to swing left it will rotate 100 times if moved to right just lightly it will rotate 100 times. If I...
  2. Ratmotorhead

    Dipper pressure

    hello men , working with my excavator this summer and I have a few questions. At my main hydraulic valve I have a pipe going to the retract side of dipper stick and a pipe to the extend side. Each have a test port which I can attach my test gauges to. I run my machine at speed and extend out...
  3. Ratmotorhead

    Negative control pressure

    Hi guys, I've got a question about testing the negative control pressure on my excavator. The machine is a 4300c linkbelt,which I have talked about before on this forum. Today I teed into the negative control lines to my regulator,one in each end of my control valves. My pressure is at 590lbs...
  4. Ratmotorhead

    Moves but doesn't

    Hello men , I seem to have an issue with my Clark cy500 forklift. If it sits all nite and I start it up in the morning ,it starts fine,but when I put it in forward or reverse it won't move. But if I leave it in neutral and rev it up pretty hard ,I will let it come back down to idle,and it will...
  5. Ratmotorhead

    Linkbelt stalls with dipper arm function

    Hello,men I have been working with my 4300c linkbelt this summer and I have been getting a bog when I pull in the dipper. I put my guages on dipper in and out and when I pull in the stick in to relieve both my guages rise to about 3000 psi, then dipper in guage goes to 5000psi and stalls. I...
  6. Ratmotorhead

    Cat Dozer up and running as well.

    The dozer is up and running as well. Ready for this warmer Ohio weather!
  7. Ratmotorhead

    Linkbelt 4300C at Work

    Still working the bugs out, but it's moving and swinging now.
  8. Ratmotorhead

    Ts160

    Hey guys got an allis chalmers ts160 post some pics soon been playin in field with it ,got everything working on it now and I'm kina impressed. Any stories I think it's number 622. Gonna start leveling some ground for a bigger building
  9. Ratmotorhead

    Pump regulator adjustment

    Hello gentlemen I am wondering if any of you have any thoughts on how to set the pressure on the regulators on a 4300c linkbelt I am getting an engine bog issue when I pull in the dipper in. I have good fuel pressure new filters and no junk in the fitting at lift pump. I have 4000 psi at...
  10. Ratmotorhead

    Engine bogs when using dipper

    Hello guys , I am slowly getting the bugs worked out of this 4300c linkbelt.i do have a problem when I use the dipper in function I get a bog in the motor as if the pump doesn't go into its high pressure mode and stays in a high volume mode.i have replaced fuel filter cleaned screen at lift pump...
  11. Ratmotorhead

    Changing control pattern on linkbelt 4300c

    Hello gentlemen I am in the process of changing the control pattern on a linkbelt 4300c. I want the boom and swing on left and dipper and bucket on right. Out of my joystick controls there are six hoses per side,of the six only two go directly to the control valve function. The other four go to...
  12. Ratmotorhead

    Link Belt Swing Issues

    Hello gentlemen. I believe I've made some headway on my excavator. Upon pressure testing I have found that I had no unloader pressure (which would be my set pressure.) I believe that is why it would not let my swing brake release. This set pressure from my unloader valve had a line going...
  13. Ratmotorhead

    Unloader Valve Pressure

    Hi guys. I am trying to set the unloader valve pressure on my Linkbelt 4300C Excavator. My manual says it to be 2700 PSI. The manual tells me to increase that pressure when I am adjusting my swing pressures. It gives me the pressure to set it to, but how do I go through the process? My...
  14. Ratmotorhead

    Link Belt Excavator 4300 Swing Issue

    Hello gentlemen: I'm back working on my excavator again. I have a couple of questions for those of you who worked on this series of machine. I'm having trouble with the swing brake releasing. When I first start the machine it will let me swing left and right for about five minutes. Then...
  15. Ratmotorhead

    Link Belt Excavator Swing Problem 4300C

    Hello gentlemen. I am hoping to get a few answers on a problem I am having with my excavator. It is a 4300C Link Belt. It seems that the swing brake will not release. After having the swing motor rebuilt, and having all my hydraulic components cleaned, (tanks, lines, cylinders, new...
Top