The construction of large infrastructure facilities, whether it is trunk pipelines or railway embankments, is impossible to imagine without the use of powerful earthmoving equipment. A special place in this series is occupied by self-propelled scraperscapable of performing a full cycle of earthworks: from cutting the soil to its transportation and laying. One of the most massive and time-tested representatives of this class of machines is MoAZ 60148It is based on MAZ tractors.
This model has proved itself as a reliable "worker" in temperate climates, although it has its own specific features of operation. Engineers have created a versatile tool that effectively copes with the movement of large volumes of bulk materials over medium distances. Understanding the working principles of this machine is critical for mechanical engineers and operators seeking maximum performance.
In this article, we will discuss in detail the design features MoAZ 60148We will consider its technical parameters and pay attention to the nuances of maintenance. Proper handling of such equipment allows to significantly extend the service life of expensive equipment.
⚠️ Note: Operation of the MoAZ 60148 scraper without preliminary heating of the hydraulic system in winter can lead to rupture of seals and failure of the pumping group.
Purpose and scope of application of technology
The main objective MoAZ 60148 development of soils of I-IV categories that do not require preliminary loosening. The machine works effectively in the construction of the earthen canal of roads, canals and airfields. Bucket bay allows you to perform layer-by-layer leveling of the soil, which makes the scraper indispensable in the planning of sites.
The uniqueness of the design lies in the possibility of working in a coupling with a pusher, which allows you to develop denser soils, or in single mode on light areas. The use of this technique is justified at distances of transportation from 100 meters to 5 kilometers. At shorter distances, bulldozers are more effective, and at long distances, dump trucks.
Scope of application scraper It covers not only construction, but also mining, where overburden movement is required. High maneuverability and the ability to work in a limited space make MoAZ 60148 demanded in urban development facilities.
- 🚜 Construction of main pipelines and railways.
- 🚜 Formation of mounds and dams in hydrotechnical construction.
- 🚜 Planning of industrial sites and warehouse terminals.
Design features and device
Base for MoAZ 60148 serves as a hinged-articulated tractor, which provides high cross-country and excellent maneuverability even on soft soils. The frame of the machine consists of two half frames connected by a vertical hinge, which allows the machine to "break" in the middle, reducing the turning radius. This is critical when working in the scoring.
The working body is scraperIt is raised and lowered by a hydraulic system. In the front of the bucket is a cutting knife, which is adjustable in height. The back wall of the bucket is mobile and serves to unload the soil, and also performs the function of a pusher when loading (depending on the modification).
Hydraulic system MoAZ 60148 includes gear pumps, distributors and hydraulic cylinders for lifting the bucket and turning the frame. Reliability hydraulics It directly affects the performance of the entire machine. The design provides the ability to quickly change knives without using a complex tool.
Features of the articulated frame
The articulation joint allows the front and rear axles to maintain adhesion to the ground even with diagonal distortion. This reduces slippage and increases traction by 20-25% compared to a rigid frame.
- ⚙️ High clearance and passability due to the articulated circuit.
- ⚙️ Modular design of the hydraulic system to simplify repairs.
- ⚙️ Enhanced bucket design for work in abrasive environments.
Technical characteristics of MoAZ 60148
For the correct selection of equipment for a specific object, you need to know its passport data in detail. Traction class And the engine power determines the ability of the machine to overcome ground resistance. MoAZ 60148 It is equipped with a diesel engine YAMZ, known for its unpretentiousness to fuel quality.
The volume of the bucket is a key parameter that affects the work cycle. Depending on the modification, the capacity can vary, which allows you to choose the optimal configuration for the density of the soil. The load capacity of the machine is designed for effective work with medium-density soils.
Below is a table with the main technical parameterswhich will help to compare MoAZ 60148 with analogues from other manufacturers.
| Parameter | Meaning | Unit of measurement |
|---|---|---|
| Engine power | 240 | hp |
| Bucket capacity | 9-12 | m3 |
| Load capacity | 14-18 | ot |
| Maximum speed | 45 | km/h |
When working with clay soils stuck on the walls, it is recommended to lubricate the inner surface of the bucket with waste oil or a special emulsion to facilitate unloading.
Operation and management of the scraper
Management MoAZ 60148 It is carried out from the operator’s cabin, which should provide a good view of the working area. Before the change, the operator must visualization Check the fluid levels and no leaks. Particular attention is paid to the condition of hinge joints and hydraulic cylinders.
The process of work consists of several cycles: cutting the soil, bucket set, transportation, unloading and return. For effective cutting It is necessary to correctly set the position of the knife. Too deep scoring will lead to overloading of the engine, and too small - to idling.
When transporting soil, sharp turns and braking should be avoided, so as not to spill the material and not damage it. transmission. The speed mode is selected depending on the state of the road and the loading of the car. On the rises, you need to switch to lower gears in advance.
⚠️ Attention: It is forbidden to make sharp manipulations of the levers of the hydraulic distributor under load, as this causes hydraulic shocks, destroying pipelines and seals.
- 👷♂️ Daily check of the tension of the belts and the condition of the tires.
- 👷♂️ Control of air filters in dusty conditions.
- 👷♂️ Lubrication of all points of hinge joints according to the lubrication map.
☑️ MoAZ 60148 inspection
Typical malfunctions and methods of their elimination
In the process of intensive operation MoAZ 60148 There may be various faults. One of the most common problems is overheating. This is often due to contamination of radiators or a faulty cooling fan. Untimely cleaning of heat exchangers leads to a drop in productivity.
Wearing knife-cutting It happens faster when working on rocky soils. A blunted knife increases the resistance to cutting, which leads to overconsumption of fuel and increased loads on the engine. Replacement of knives should be done regularly, without waiting for their complete destruction.
Problems with transmission, such as gearbox noise or difficulty switching, are often caused by low oil levels or wear of clutch discs. Diagnosis of these nodes requires a qualified approach and the use of special equipment for measuring pressure.
Regularly replacing filters and using only recommended oils reduces the risk of hydraulic and engine failures by 40%.
To eliminate most of the defects, it is necessary to have diagnostic equipment and spare parts. It is important to keep a repair log to track the resource of the nodes and plan replacements before critical wear and tear.
Maintenance and care
System system maintenance (TO) for MoAZ 60148 It is regulated by the manufacturer and must be strictly observed. TO-1 is carried out every 60 hours and includes lubrication and check of fasteners. TO-2 (after 240 hours) involves replacing filters and a deeper diagnosis.
Special attention should be paid pneumaticsIt controls the brakes and auxiliary mechanisms. Moisture in the pneumosystem in winter can lead to brake failure, so draining condensate from receivers is a mandatory daily procedure. Use of the antifreeze In the engine cooling system, concentration control is also required.
Storage of equipment in the off-season requires the preservation of knots. Metallic surfaces It must be protected from corrosion and the fuel tank must be filled to avoid condensation. Compliance with the rules of storage will allow you to quickly put the car into operation at the beginning of the next season.
How often should you change oil in the hydraulic system MoAZ 60148?
The replacement of hydraulic oil is carried out according to the regulations, usually every 1000-2000 hours, but with intensive work in severe conditions, the interval is reduced to 500 hours. It is necessary to conduct a laboratory analysis of the oil to determine its residual resource.
Can MoAZ 60148 be used to develop rocky soil?
No, scrapers are designed for soils of category I-IV. The development of rocks requires preliminary loosening of other works. Attempt to dig a rock will lead to breakage of the knife, damage to the bucket and failure of the hydraulic cylinders of lifting.
What is the maximum distance of soil transportation?
The economically feasible transportation range for scrapers is from 100 meters to 5 kilometers. At long distances, the efficiency of work decreases due to an increase in cycle time, and it is more profitable to use a bundle of excavators + dump trucks.