Still R20-16:
Still R20-16 lifting won't work when cold

Hello, With an R20-16 we see the following. When we power on the truck often the movements from the mast won't work (lifting, tilting and side-shift). You can hear the electromotor running also accelerate and decelerate depending on the position of the joystick. When the truck is powered for half an hour it runs fine. We test all capacitors with cold spray to simulate a cold situation but we did not find anything. Does anybody has an idea about this?
  • Posted 26 Aug 2021 05:57
  • Discussion started by graatje
  • Limburg, Netherlands
graatje73@ziggo.nl
Showing items 1 - 3 of 3 results.
Hi friend,
You can't hear and u can't count the speed of the motor pump I am really sure you can't unless u have speed-meter or Still Sted software....Therefore, pls. do what I have told u before than let wait and see...my friend...
PS: Technical side is not by feeling (my friend) unless u have a very long & good plus experience...
  • Posted 27 Aug 2021 03:39
  • Modified 27 Aug 2021 03:49 by poster
  • Reply by Nunanemo
  • Vietnam
Cheers
Nuna - Ho Chi Minh City
Email: dairongservice1973@gmail.com
Website: xenangdairong.com
Thank you for your reaction.
You mention "the speed of the pump seems to be reduced". The speed of the pump is not reduced. It looks like the speed of the pump correspond with the position of the joystick, but the valves are not activated.
  • Posted 27 Aug 2021 00:01
  • Reply by graatje
  • Limburg, Netherlands
graatje73@ziggo.nl
Hi,
- Can hear the electromotor running also accelerate and decelerate depending on the position of the joystick => the control system should be no problem but the speed of the pump motor seems to be reduced by unknown reason.
- When the truck is powered for half an hour it runs fine => this means the hydraulic system is OK.
=> I used to face a similar symptom in the past: Just open the control panel (display) to look for the battery 3VDC then replace it with the new one. This battery is responsible for feeding the power supply for the microcontroller of the display and it would be ready when the key switch ON. If it is over, when you turn ON the key SW the controller needs to wait for a while to warm up the controller, in your case is half of hour then it is ready for use.
Just try it and let me know the outcome
Good luck
  • Posted 26 Aug 2021 11:49
  • Reply by Nunanemo
  • Vietnam
Cheers
Nuna - Ho Chi Minh City
Email: dairongservice1973@gmail.com
Website: xenangdairong.com

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