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A Comprehensive Guide to Pre-Pumping Inspection Items for Wet Spray Truck Pumps
Release time:
2026-01-05
Source:
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Summary:
System checks prior to pumping with a wet spray boom pump are the primary step for ensuring construction safety, improving equipment efficiency, and guaranteeing construction quality. A standardized and meticulous inspection can effectively prevent pipe blockages, equipment damage, and safety accidents. The following are the inspection items that must be completed before pumping with a wet spray boom pump, categorized by system module.
I. Basic Condition Check of the Complete Machine
Before starting the equipment, you must confirm the overall basic condition of the machine.
1. Equipment Parking and Support: Ensure that the equipment is parked on a solid, level surface and that the support legs are securely stabilized. The spray arm must not be raised or extended if the support legs are not properly supported.
2. Safety Protection and Signage: Operators must wear protective equipment such as safety helmets, dust masks, eye shields, and work gloves. At the same time, ensure that safety signs on the equipment are clearly visible and that labels or nameplates are undamaged.
3. Power Source Verification: For devices powered by an external power source, check that the cable is free from damage, there should be no electrical leakage, and the cable must not be submerged in water.
II. Hydraulic System Inspection
The hydraulic system is the power core of the wet spray carriage. Before pumping, the following should be carefully checked:
1. Hydraulic Oil Condition: Check the hydraulic oil level and cleanliness. If emulsification due to water ingress is detected, immediately replace all hydraulic oil and filter elements. At the same time, inspect the seals and connecting pipelines of the hydraulic system to ensure the hydraulic circuit remains tightly sealed and free of leaks.
2. System Warm-up and Functional Testing: Start the engine and let it warm up for approximately 10 minutes. Then, operate the outriggers, boom, pumping, mixing, and other functions for 10 to 15 minutes, checking whether each system operates normally and responds sensitively. Verify that oil is flowing properly from the lubrication points of the hopper and delivery cylinder, and ensure there are no oil leaks in any of the systems.
III. Pumping System Inspection
The pumping system is directly related to the efficiency of concrete delivery, so inspections must be thorough and meticulous.
1. Hopper and Mixing Device: Before starting the machine, check whether there are any foreign objects inside the hopper to prevent pipe blockage. Also, ensure that the mixing device rotates smoothly to prevent concrete segregation.
2. Key wear-resistant components: Inspect the wear plate and cutting ring. If any signs of excessive wear, uneven wear, or excessive clearance are found, they must be replaced.
3. Lubrication and Cleaning: Before pumping, grease should be applied to parts such as the boom hinge points, slewing bearings, and guide sleeves of the delivery cylinder. At the same time, ensure that the oil levels in the lubrication system’s oil cups are sufficient and that all lubrication points are unobstructed.
IV. Electrical and Control System Inspection
The reliability of electrical and control systems is the guarantee for the stable operation of equipment.
1. Wiring and Components: Regularly inspect the integrity of wiring and the condition of electrical components. Keep electrical control boxes, motors, and other components clean and dry to prevent moisture from entering and causing short circuits or damage.
2. Remote Control and Safety Settings: Before starting the remote control, first press the emergency stop button on the remote control, then move all control levers and switches on the remote control to the neutral or “0” position to ensure that no accidental or hazardous movements occur.
V. Inspection of Media and Auxiliary Systems
Ensure that the concrete and auxiliary media meet the pumping requirements:
1. Water Source and Water Quality: Before pumping, ensure that the water tank has sufficient water and that the water quality is clean; replace the water with fresh water if necessary.
2. Concrete Quality Control: Before pumping, the delivery pipelines must be pre-lubricated. Before the concrete mixer truck prepares to discharge concrete into the hopper of the concrete pump, the mixing truck should rotate at a moderate speed for 3 to 8 minutes to ensure the workability of the concrete. During pumping, interruptions should be avoided as much as possible; discharging should be continuous, and pumping of concrete that has already undergone deterioration is strictly prohibited to prevent pipe blockages.
3. Accelerator System: After each spraying operation, the accelerator pump and pipelines should be cleaned. The accelerator filter should be cleaned once a week to ensure that the system remains unobstructed before pumping.
VI. Re-inspection of Environmental and Safety Devices
In the final stage, it is necessary to confirm the status of the working environment and safety devices:
1. Environmental Safety Confirmation: Before starting the equipment, operators must ensure that personnel in the work area and hazardous zones are safe.
2. Cooling System and Tires: Regularly inspect the cooling system, flush the radiator fins, and prevent dust buildup. At the same time, check the condition of the tires to ensure there is no damage to their appearance and that the tire pressure is appropriate.
Conclusion
The pre-pumping inspection of wet spray trucks is a comprehensive task involving multiple systems and stages. By establishing and strictly adhering to a standardized inspection procedure, we can significantly reduce equipment failure rates, ensure the continuity and stability of concrete spraying operations, and lay a solid foundation for the smooth implementation of construction projects. Operators should develop the professional habit of “inspecting first, then starting,” thereby eliminating potential hazards at their earliest stage.
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Address: Loudi Avenue, Loudi High-tech Industrial Development Zone, Lianyuan City, Loudi City, Hunan Province
Telephone:400-186-0868
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