• 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. T

    JLG 340AJ brakes stuck on, hydraulic issue

    I noticed Danfoss has 4 updates or “redesigned” parts that are directly related to the charge pump on the H1P pump. Most likely I’ll send the pump to a rebuilding service and stop hoping for an easy fix. Picture shows debris in the charge filter. Every pleat has green rubber… bummer
  2. T

    JLG 340AJ brakes stuck on, hydraulic issue

    The JLG tech rep did suggestion something similar. His suggestion was to isolate the main pump. Keep the suction and return to tank hoses in place. Remove all the other hoses and cap/plug all removed hoses. Gauge the 3 test ports and check the numbers against the specs. Need some -16 plugs and...
  3. T

    JLG 340AJ brakes stuck on, hydraulic issue

    Not yet. That was also a suggestion made from the JLG tech rep. His plan was to completely isolate the main pump and test pressures. waiting on -16 plugs/caps to do so.
  4. T

    JLG 340AJ brakes stuck on, hydraulic issue

    I did removed the adjustment valve. No visible damage to the assembly, both springs in good shape. Usually 1 or 2 turns will make something happen on the gauge. This time… no luck
  5. T

    JLG 340AJ brakes stuck on, hydraulic issue

    Working on a JLG boom lift 340 AJ. It developed this issues rather abruptly. The brakes will not release at low or mid engine speeds. If you select full engine speed, the brakes release enough to travel the machine in either direction. At low or mid engine speed the brakes drag enough to cause...
  6. T

    what is the best coupler system out there for a john deere 27d

    Ran an old Takeuchi TB016 for years with a pin grabber and loved it. Best thing was you could put the buckets on backwards and cut tight to walls and foundations. The mini/micro machines don’t have enough power to bust the quick couplers. I’ve used a 35D and 50D with wedge and they have...
  7. T

    Takeuchi TB175 Coolant level/oil pressure shutdown?

    Repaired a number of Takeuchi machines with the alarm triangle warning symbol flashing and shutting down the machine. Did anyone work on the machine recently and this problem occurred. 1-check fluid levels 2-check basic sensors like the temps, oil pressure and hydraulic temp/pressure. The...
  8. T

    Bucket and tilt both fall

    3 possible reasons: 1. The piston seals for the cylinders are worn or damaged. 2. The loader valve assembly has worn seals. 3. The pilot pressure to the loader valve is allowing the loader valve to stay partially open OR the linkage to the loader valve is out of adjustment OR the electrical...
  9. T

    Bucket and tilt both fall

    Let’s get some basic info first… Hours on machine? Machines overall condition? Visible hydraulic leaks? What control system does your Bobcat use? Joystick only, lever steer and foot pedals. Will the lift arms also fall with the machine off? How fast do they fall? How quickly did this problem...
  10. T

    Takeuchi TL150 travel issue.

    What is the overall condition of the machine? How many hours? Hydraulic fluid level, type and age? Typical use for machine? Major repairs in the machine history? Have you removed the belly pans to physically look at the tandem drive pump? Did you bleed air out of the pilot lines? I suggest...
  11. T

    Deere 50D Slow hydraulics at all engine speeds

    Conclusion: Pulled the fuses and found none that were blown. This however did fix the issue!! This machine has an engine monitor and automatic idle down controls. The best reasoning we have is the control modules, interface and gauges got a reset when all the fuses got pulled out. The engine...
  12. T

    Pros and Cons of Enclosed Cab v. Open Cab

    I’ve run many hours in both open and full enclosed cab mini excavators. Deere 17G example: I love the open cab because of the excellent visibility. If your running this small of a machine, usually your on and off it frequently, so an open cab is nice. We often take the ROPS off to sneak into...
  13. T

    Deere 50D Slow hydraulics at all engine speeds

    The cycle time is the almost the same at idle and full throttle. It took the tracks 16.5 seconds to make a full lap at both idle and full throttle. Update: I pulled all the fuses and checked them, put them back in and the problem has been solved. Now I’m going to try and chase down which circuit...
  14. T

    Deere 50D Slow hydraulics at all engine speeds

    Tested travel speed with tracks suspend; idle vs full throttle. It was about 1/2 second faster at full throttle, well within the error of us using the timer on the phone. I don’t think the pump is weak because it was able to pick itself off the ground for the track travel test without issue. S/N...
  15. T

    TL130, Weak Lift Arm

    the relay is behind the kick panel by operator feet. The loader control valve is by operator right shoulder. I know the 2 speed solenoid is by operator left leg. I think the float is also there. Either way, try the relay first. Check for power there. You should be able to activate the relays...
  16. T

    Deere 50D Slow hydraulics at all engine speeds

    Thank you. I’ll test travel speed today with the tracks elevated off the ground. I did confirm the travel speed on the ground in both low and high are still slow regardless of of engine speed. However, the machine oil temp was probably ambient air temp of about 80.
  17. T

    TL130, Weak Lift Arm

    “Controlled by solenoids” sorry for the typo.
  18. T

    TL130, Weak Lift Arm

    A few years ago we had a TL130 and TL140. If a remember correctly the float function is electrically controlled by servos. First question: Does the bucket have good curl or breakout force? You mentioned the lift arms are weak, but are the bucket cylinders strong? Second Question: are you running...
  19. T

    Deere 50D Slow hydraulics at all engine speeds

    Additional info: This has 2 speed travel. Another operator thinks the travel speed does adjust up and down with throttle selection. It's possible it was in rabbit vs turtle. I will double check the travel speed in both high/low at all engine speeds.
  20. T

    Deere 50D Slow hydraulics at all engine speeds

    First post, long time lurker and I want to thank you all in advance for your advice! Deere 50D (gen1), 6000hrs, engine runs strong, and machine runs strong until a few weeks ago. The machine sees regular use and some abuse, but on average well maintained. We noticed the rotate function was slow...
View older results
Top