Jungheinrich HC 110B:
No lift

She lost resistance at half way cylinder height and came slowly down. Had not noticed fluid level in tank was low. I really think I introduced air at that point. I did not try running pump over n over after she would not lift. So added fluid to tank...tried 1 more time running pump but still no lift. So how can I bleed the air from system if that's the problem? Dont see any bleed points. I see the high pressure side connected to the low cylinder side n the other line to top of cylinder. Hoping yall can help me figure something out. She was running fine. Ty in advance
  • Posted 24 Feb 2024 12:06
  • Discussion started by Greg_Miller
  • Texas, United States
Greg Miller
Showing items 1 - 7 of 7 results.
Ty..
No air or oil I could detect out of fitting. Since she went down slowly on her own......thinking that the valve activated by the down button solenoid possible problem. If the valve is stuck open like its always in the down transition that would make sense? I did feel the solenoid click when energized but its faint. Not saying it's not working...grasping here. I did notice a red screw like plastic fitting on tank near cap for oil... I hear this could be an emergency down if twisted but that seems weird to have a plastic piece that would relieve fluid.
  • Posted 4 Mar 2024 13:07
  • Reply by Greg_Miller
  • Texas, United States
Greg Miller
Just loosen a little bit, then try to lift, if there's pressure, you'll see air and oil coming from the fitting. If not the problem is elsewhere.
  • Posted 1 Mar 2024 22:10
  • Reply by Tanel_M
  • Estonia
Ty...does pump need to be in lift mode when I loosen fitting? Not sure about what you men about pump.
  • Posted 28 Feb 2024 03:07
  • Reply by Greg_Miller
  • Texas, United States
Greg Miller
I have actually never seen your model, and via googling I aldo didnt see bleed scew, but opening that pipe at the top might still help you battle your problem, as then you'll atleast see if there's any pressure coming from pump. Next thing the is to open pump.and verify it'll move freely.
  • Posted 25 Feb 2024 20:07
  • Reply by Tanel_M
  • Estonia
Ty for reply. The only thing I see is the connection from metal hydraulic pipe to the cylinder. I have pics but how to post? Are you saying that is the bleed valve? Sorry for the greenie here... what am I missing here?
  • Posted 25 Feb 2024 10:12
  • Reply by Greg_Miller
  • Texas, United States
Greg Miller
Dear Mr Tanel_M, please share your email
  • Posted 24 Feb 2024 19:59
  • Reply by Syed
  • Sindh, Pakistan
swasiquehussain at gmail dot com
On all lift cylinders, jungheinrich has bleed screws, 10mm at the top part before cylinder head you can simply turn them open few turns and bleed the system thus. If the fluid level has been restored, sometimes on certain lifts you need to check filter housing too - on the omes like EFG where there's an pressurized filter you may need to fill filter housing manually too.
  • Posted 24 Feb 2024 19:54
  • Reply by Tanel_M
  • Estonia

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