搜索历史清除全部记录
- All
- Product Management
- News
- Introduction
- Enterprise outlets
- FAQ
- Enterprise Video
- Enterprise Atlas
Guidelines for Preventing Common Operational Faults and Emergency Response Measures for Wet Spraying Vehicles
Release time:
2026-02-22
Source:
Author:
Summary:
When operating in complex working conditions, wet spray vehicles may face various risks of failure. This guide aims to outline preventive measures for common faults as well as on-site emergency response procedures, thereby enhancing operators’ ability to manage risks and maximizing the safety of personnel and the integrity of equipment.
1. Blockage in the conveying pipeline
Preventive measures ：
Before pumping, ensure that the concrete has good workability. Before unloading from the transport truck, rotate the mixing drum at high speed for 3 to 8 minutes.
Pumping of concrete that has already segregated, experienced excessive slump loss, or begun to set is prohibited.
Ensure continuous material supply during the operation to avoid prolonged interruptions.
Thoroughly clean the pipes after each job.
On-site emergency response ：
Immediately stop pumping and reverse the pump for 2-3 strokes, attempting to suck the blockage back into the hopper.
If the reverse pumping is ineffective, after relieving pressure from the relief line, disconnect the pipeline at the fitting closest to the blockage and remove the obstruction segment by segment.
During handling, never face the nozzle directly to prevent high-pressure materials from spraying out and causing injury. After reconnection, first pump in mortar for lubrication before resuming spraying.
II. Abnormal hydraulic system pressure or oil leakage
Preventive measures ：
Check the hydraulic oil level, oil quality, and the sealing of all pipe connections daily.
Regularly replace the hydraulic oil and filter elements to prevent oil contamination.
Avoid operating the equipment under excessive load for extended periods.
On-site emergency response ：
Immediately shut down the machine if you detect a sudden drop or abnormal increase in pressure, or severe oil leakage.
After the hydraulic system has been completely depressurized, locate the leak. If the leak is caused by a loose fitting, try tightening it; if the leak is due to a ruptured pipe or damaged seal, replace the corresponding spare part.
Before topping up the hydraulic oil to the specified level, it is essential to identify and eliminate the cause of any leaks. Mixing hydraulic oils from different brands or models is strictly prohibited.
3. Abnormal arm boom movement or hidden dangers in the wire rope
Preventive measures ：
Strictly implement daily inspections of boom wire ropes (checking for broken wires, wear, lubrication, and end-terminal fastening).
When operating the boom, perform movements smoothly and avoid sudden starts or stops that could cause impact.
Regularly inspect the wear and lubrication conditions of the boom hinge points and slewing supports.
On-site emergency response ：
If you feel that the boom is moving sluggishly, making unusual noises, or becoming unresponsive during operation, immediately press the emergency stop button.
Inspect the wire rope. If the number of broken wires within one lay length exceeds the specified limit (e.g., reaching 10% of the total number of wires), the diameter wear exceeds 7%, or an entire strand breaks, you must immediately stop using this boom function and arrange for the wire rope to be replaced.
Any maintenance involving the boom structure or major moving components must be carried out only after the boom has been safely lowered and stabilized and mechanical support or other locking measures have been implemented.
4. Rapid-setting agent addition system failure
Preventive measures ：
Check each class to ensure that the quick-setting agent pipelines are unobstructed and leak-free.
Clean the rapid-setting agent pump and pipelines after each job.
Clean the quick-setting agent filter weekly.
On-site emergency response ：
If you detect an abnormal flow rate or no output from the rapid-setting agent, first check the tank level, whether the filter is clogged, and whether the pipelines are bent or leaking.
You can try flushing the pipeline in reverse with clean water. If the pump itself is malfunctioning, activate the backup pump or schedule a work stoppage for maintenance.
5. Failure of the electrical control system
Preventive measures ：
Keep the electrical control box and operator’s console dry and clean to prevent moisture and dust from entering.
Regularly check the lines for damage or looseness.
When not in use, place the remote control in a dedicated drying box.
On-site emergency response ：
If the remote control malfunctions or certain functions become inoperable, first try using the backup control buttons on the device itself.
Immediately press the device’s emergency stop switch to cut off the main power supply.
Contact a professional electrician for inspection; non-professionals are strictly prohibited from dismantling the electrical control box on their own.
General Security Principles
Shut down first, then handle. Before addressing any malfunction, you must first perform a complete shutdown and release the pressure in the relevant system.
Ensure safety, then troubleshoot. Always prioritize personnel safety and ensure the work environment is safe before proceeding with troubleshooting.
Record in detail, report diligently. Detailed records shall be kept of all fault symptoms, troubleshooting procedures, and replaced components, and these records shall be promptly reported to the management department.
By combining rigorous preventive measures taken in advance with proper handling during the event itself, we can significantly reduce the impact of failures and ensure the smooth progress of construction tasks.
RELATED INFORMATION
Contact Us
Changsha Base:Hunan Zenxon Heavy Industry Technology Co., Ltd.
Address: Jinrong Tongxin International Industrial Park, Changsha High-tech Zone
Loudi Base:Hunan Haoda Heavy Industry Technology Co., Ltd.
Address: Loudi Avenue, Loudi High-tech Industrial Development Zone, Lianyuan City, Loudi City, Hunan Province
Telephone:400-186-0868
E-mail:3804246750@qq.com
E-mail:19967177733@163.com
0
Consult now
WeChat Public Number
TikTok