Self-Loading Mixer Truck Operation Simplified: A Beginner's Guide

Self-Loading Mixer Truck, as a kind of engineering vehicle to achieve compound loading, metering, mixing and transportation functions, has been used in increasingly modern construction projects. A highly standardized operation process is the key to ensure construction efficiency, improve concrete quality and ensure operation safety. This article aims to briefly introduce the basic operation steps and precautions of the self-loading concrete mixing truck, and is suitable for beginners as a quick operation guide.

Preoperative preparations

It is the self-feeding concrete mixing transport vehicle before the formal operation, to carry out careful preparations for the vehicle, so as to ensure that the vehicle is in good running condition and to ensure the operational safety of the operation process. It primarily (but not exclusively) consists of the following links:

External inspection of the vehicle: check the state of the body structure, tire pressure, light signal, rearview mirror, etc. Make an attempt to check the quality of mixing drum cleanliness to ensure that old hardened concrete is not left inside.

Check the liquid and oil level: whether the engine oil, coolant, hydraulic oil, brake fluid and other liquid levels are within the normal range, if there is a shortage of timely replenishment. Check leakage phenomenon, have abnormal report immediately and eliminate.

Braking and steering system check: Drive slowly, and test the performance of the brake system, to see if the brake is sensitive and reliable. Test if the steering mechanism is matching and stuck.

Familiar with the control panel: carefully read the vehicle operation manual, familiar with the function and position of each control button and the instrument panel indicator, especially the position and use of the emergency brake button.

Survey of operation area: Understand the terrain, slope and distribution of obstacles in the operation area, plan the driving route and loading and unloading yard, and ensure the safety of the operation environment.

Process and Precautions for Material Loading

The self-loading is the essence of this type of vehicle, and the on-site loading process will directly impact on the ratio accuracy and working efficiency of concrete. Note when operating:

Reasonable parking position: Please put the vehicle on a flat and solid ground and tighten the handbrake, so that the vehicle can not slip when loading.

Operation of loading arm: Know how to use the control for the extension, lift and rotation of the loading arm in order to avoid the mechanical damage or leakage of the material resulting from the excessive locker.

Material, absorption and delivery: according to the ratio requirements, respectively, absorb sand, cement and other materials. Do not inhale too much or foreign matter. It should be applied gradually and evenly to prevent too much impact.

Weight control and monitoring: close attention to the vehicle load indication, prohibit overload operation. Some vehicles already had automatic weighing systems and these systems should be calibrated fit with their weight.

Laying materials uniformly: During the loading process, try to ensure that the materials are evenly distributed in the mixing cylinder to avoid unbalanced load of the vehicle affecting the stability of the vehicle and the mixing effect.

Standards Concrete, the code of practice for mixing concrete

Concrete mixing is an extremely important link in ensuring the quality of concrete, strict technical requirements should be followed to carry out the operation:

Parameter ratio setting: Set the corresponding ratio parameters of cement, sand ratio, water ratio and other corresponding concrete on the control panel based on the project requirements.

Adding water control: The addition of water to the water should be precisely controlled to prevent excessive addition or insufficient amount to influence the workability of the concrete. Some vehicles have an automatic water filling system, which should guarantee accurate metering. Control of mixing time: According to the sex and capacity grade of concrete, a reasonable mixing time should be set to ensure the full reaction of cement. Control of mixing cylinder speed: The mixing cylinder speed should be adjusted according to the different stages of mixing to ensure the mixing effect. The state of the concrete shall be observed: during the mixing process, the operating personnel can observe the concrete state through the observation window or the monitoring system and adjust it in time if there is an abnormal value. Operation points during transportation: The safe transportation of the transportation is the guarantee to ensure the quality and efficiency of the material. The operator should strictly comply with the traffic regulations and the following points:

Screen smooth operation: starting, acceleration, braking, etc. It is not suitable to suddenly accelerate, and suddenly brake, special tanks at full load, or at poor road surface condition the attention should: Speed control: according to the road conditions and traffic flow, in a safe driving speed, strictly prohibited speeding.

Attention to the height and width of the vehicle: during the driving process, the height limit and width limit facilities should be noticed, ensuring the safe passage of the vehicle. Slope driving skills: climbing critical should select the appropriate gear, to maintain the power is enough; downhill through the engine traction force-speed regulation, avoid long-term braking failure breakdown. Cuvette driving notice: slow down, avoid sharp turns, prevent vehicle rollover or concrete leakage. Concrete discharge procedures and safety procedures.

The final link of the concrete mixing truck is unloading, and safety and efficiency of unloading operations are the most important:

Select the suitable unloading place: Place the vehicle on a hard, level ground, and near the pouring locati0n and make sure no ample obstruction surrounds and a person.

Provide the Driver with Room to Move: Set the HandBrake and Ensure the Discharge Area is Clear

By adjusting the rotation direction and speed of the mixing drum and the Angle of the discharge tank, the discharge speed and flow of concrete are controlled to ensure uniform and continuous discharge.

Second, clean the discharge tank and mixing drum: After discharging, clean the residual concrete in the discharge tank and add water to the mixing drum, rotating upward on low speed for cleaning to prevent concrete from solidifying.

The unloading process: No one can approach the unloading port to avoid concrete sputtering torturing people.

OperationAfter cleaning and regular maintenance

It is an important measure to prolong the service life of the vehicle and to ensure the running condition to make the post-operation maintenance and maintenance of the standardization:

Vehicle external cleaning: The body, tires, mixing cylinder outside the soil and concrete residues should be cleaned in time.

Mixing drum internal cleaning: The inside of the mixing drum shall not have residual hardened concrete, etc. In case it is required you can use special cleaning tools as well.

Check liquid and oil level: recheck the engine oil, coolant, hydraulic oil, brake fluid and other levels, replenished in time.

Check the fastening of each component: Bolts, nuts, and other connectorsbecause if it is loose. If they are loose, tighten them immediately.

Daily maintenance: regular lubrication and replacement of wearing parts and special maintenance work according to the requirements of the vehicle manual.

conclusion

Mastering the basic operation process of the self-loading concrete mixing truck is a prerequisite for becoming a qualified operator. The operator should carefully study the above said preparation work, material loading and mixing, transportation and unloading, as well as after operation maintenance, and strictly follows the related regulations. With the accumulation of experience and strict implementation of safe operating procedures, can effectively improve the efficiency of work and ensure the quality of the project and the safety of their own and others.