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The Solutions to the Failure of the Remote - Controlled Boom of a Pump Truck
Release time:
2024-11-25
Data source:
In the process of mechanization replacing manual labor, the application of concrete pump trucks in concrete construction has become commonplace.
In the process of mechanization replacing manual labor, the application of concrete pump trucks in concrete construction has become commonplace. Due to their convenient operation, super - standard pumping performance, and the elimination of cumbersome pipe - laying steps, they have been favored by many construction units.
However, during use, a customer's pump truck encountered the following fault: the boom operation malfunctioned when the pump truck was in remote - control mode. So, what exactly caused this kind of fault? Let's follow the technicians responsible for on - site fault handling to find out.
Fault phenomenon
In a pump truck, when using the HBC remote control, the near - and far - control during the first pumping was normal. After switching to the driving state, the near - control during the second pumping was normal. In the remote - control state, the forward and reverse pumps and mixing reversals functioned properly, but the boom operation failed.
Fault analysis
1. The remote - control lever is damaged and does not move. However, since the pumping is normal, this possibility can be ruled out.
2. The remote - control signal is not good or there is co - frequency interference. But considering that there are forward and reverse pumps and stirring reversals under remote control, this can be ruled out.
3. The forward and reverse pumps and stirring reversals are controlled by switch quantities and have no primary protection. The action of each arm, the speed of the arm's action, and the pumping displacement are proportionally controlled and have no secondary protection. The proportional control should return to the zero position in the natural state. Otherwise, the protection will self - lock, and all proportional controls will fail.
Troubleshooting process
After excluding the first two possibilities, open the remote - control box cover. There are two metal wires on the side of the fan - shaped gear that meshes with the gear corresponding to the remote - control rod. The position where the two metal wires are aligned is the zero - position mark. Use a 1.5mm hexagon wrench to loosen the fastening screw, pull the rocker to adjust until the two metal wires of the remote - control rod are aligned in the natural state (adjust to the normal zero position), and then tighten the screw. Thus, the fault is resolved.
In order to protect the life safety of the operator, JIUHE takes common safety controls into consideration in the early stage of product design. Therefore, when the equipment is operated in an abnormal state for a long time, the equipment will automatically trigger the protection self - locking function.
About Us：JIUHE specializes in researching, manufacturing, selling, and providing after - sales services for construction machinery. Its main products include trailer concrete pumps, concrete line pumps, concrete pump trucks, concrete placing booms, wet shotcrete machines, ladder lift trucks, and aerial lift trucks. Contacts: inquiry@jiuhezg.com, +86 - 18765912751
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