Oil transfer arm problem

1. The outer arm of the oil transfer arm cannot extend, but it can move in all other directions – it is very likely that the pulley on the upper part of the oil transfer arm is stuck or that the steel cable has come loose； II. Neither manual control nor remote control works, and the indicator light does not turn on when the control button is pressed — 1. The \"control mode\" has not been selected correctly — \"Remote\", \"Manual\"? 2. Was the “Status Selection” switch not turned to the “Drive” position? 3. Are the switches for the “control system” and “power switch” not turned on? 4. Is the hydraulic system clogged, causing a malfunction and preventing it from working? 5. Is the mechanical locking mechanism not in the “unlocked” state? The above are merely my guesses; it is still up to the original poster to invite experts in oil transfer arms to conduct a diagnosis and come up with solutions.

This post was last edited by Oil Transfer Arm on August 17, 2009, at 17:04. The netizen upstairs knows quite a lot about the oil transfer arm; however, that still doesn’t fully resolve the problem: 1. First off, all other actions work fine, which indicates that there’s nothing seriously wrong with the electro-hydraulic system itself. The remote control should also be functioning properly. All that needs to be done is to check the wire responsible for “outer arm extension”. 2. Call an electrician to start checking from the solenoid valve that controls the extension of the outer arm. First, check whether the solenoid valve is receiving power; if not, it’s a wiring issue, and identifying where the power is lost will resolve the problem. 3. If there are no problems with the entire circuit, check whether the solenoid valve operates when powered on (see if it activates). If it does not operate, it indicates that the solenoid valve is faulty and needs to be replaced. 4. If the solenoid valve is not faulty, it’s possible that the hydraulic pipeline mentioned by the person upstairs is blocked; this would be problematic, as the pipeline may need to be cleared and cleaned. Ultimately, it is recommended to have a professional manufacturer handle it; it might just be a minor issue such as a loose wire end, or it could be something else – so having the manufacturer take care of it is the safest option.

Thank you to the two fellow travelers above for their analysis. The problem has now been resolved; it was a poor connection in the circuit within the control cabinet that controls the extension of the outer arm, which prevented the oil transfer arm from moving in that direction. The most likely reason is that the sealing of this control cabinet was not done properly; water was found inside it some time ago, which has led to this problem now.