The Chelyabinsk Machine-Building Plant has been producing road equipment of the DZ series since 1978. During this time, changes were made to the design several times. This is how the DZ-98 model was created, the technical characteristics of which indicate that it is the most powerful road vehicle.
Purpose of technology
Grader DZ-98 is designed to form the profile of the site. It can be used on soils of different density. Differs in a wide range of operating temperatures: from -45 to + 40 ° C. There is a tropical option.
The DZ-98 motor grader is used:
- in construction;
- in repair work;
- for the formation of embankments;
- when preparing the foundation of the road;
- for profiling sites;
- when loosening rock and old coating;
- for cleaning snow and debris.
Main technical characteristics
The DZ-98 motor grader has the following technical characteristics:
| Indicator name | Meaning |
| Height (m) | 4 |
| Width (m) | 3,2 |
| Length (m) | 6 |
| Maximum ground clearance (cm) | 61,5 |
| Maximum travel speed | 47 km / h |
| R min turn | 18 meters |
| Braking distance at v = 30 km / h | 14 meters |
| With the circuit off | 41 meters |
| Blade angle | 0-360 ° |
| Blade lateral extension from | 102 cm |
| Moving the blade below the support surface | 50 cm |
| Number of forward gears | 6 |
| Number of reverse gears | 6 |
DZ-98 motor graders can be made in 6 versions, which differ in wheel width. Depending on this, some parameters differ:
Motor grader motor
The DZ-98 grader is powered by a YaMZ-238ND2 diesel engine with a turbocharging system for 8 cylinders, a YaMZ-240G for 12 cylinders, or Cummins. Both options are started with a starter. The crankshaft speed at which the maximum power is 1.7 thousand revolutions per minute.
The maximum power of the YaMZ-238NDZ engine is 170 kW. For Cummins M-11C265 - 202 kW.
Power transmission
The transmission unit is mechanical. It transmits rotation to the drive wheels. It is possible to disconnect from them, change direction and speed. Used to operate hydraulic pumps.
The power train assembly is connected to the flywheel of the motor. Crankshaft rotation is transmitted from the engine to the power train assembly through an elastic coupling.
Brake used for parking or holding on a slope, band. The clutch is dry, two-disc.
Chassis
The wheel formula of the DZ-98 motor grader is 1 * 3 * 3. In this case, all bridges are leading.
A feature of the DZ-98 motor graders: their middle and rear axles are interchangeable.
The axle shafts do not perceive the radial load from the wheels and are called unloaded. They can withstand significant loads.
To reduce the speed, a multi-disc wheel brake is used, the sintered discs of which are located inside the oil bath.
Suspensions of the middle and rear axles are balanced, with reaction rods. They provide vertical movement of bridges.
The front axle of the motor grader is driven and steered. This provides high traction on the blade, improved flotation.
Its design is similar to the previous ones, the attachment to the main frame and the parts that rotate the wheels are different.
Hydraulic system of the motor grader
The hydraulic system controls the clutch, side blade, maneuvering and movement of the motor grader.
The system consists of 2 circuits in which gear pumps are installed. Hydraulic cylinders are used as actuators. A hydraulic motor can be installed in the blade swivel mechanism.
Pneumatic system
The pneumatic system of the unit consists of two circuits. It allows you to control the wheel brakes and the lever for the suspension of mounted equipment. Service and emergency braking are independent of each other. An indicator light monitors the pressure inside the system.
Motor grader control process
Systems and mechanisms are controlled:
- mechanically- gearbox, parking brake, front axle, reverse, multiplier;
- mechanically with hydraulic maintenance- clutch;
- hydraulically- turning the front wheels, attachments;
- pneumatically- wheel brakes.
Unit actuators
The main working body of the motor grader is a blade with a knife, which is fixed to the traction frame. It has the ability to rotate vertically and horizontally, move up and down. The moldboard can be moved to the side.
Hinged track-laying mechanisms make the machine multifunctional. It:
- soil ripper;
- scarifying device for crushing dense soils and previous road surface;
- dozer blade;
- side grader blade.
In winter, a special wing is installed on the dump, which throws snow onto the side of the road. Using the optional side wing, skids can be cleared behind the guardrail. The frontal leaf at a low speed shifts the snow to the side, and at a high speed it scatters it by a dozen meters. As a result of such cleaning, a snow bank does not form along the road.
Bulldozer equipment is used for filling holes, making excavations. Soils of 1–2 categories are moved without preparation, 3–4 and frozen ones are preliminarily loosened.
The DZ 98 motor grader is a special technique that is used for large-scale excavation and grading operations, in the construction and maintenance of roads on soils of 1-4 categories.
The manufacturer has provided various attachments in the configuration, significantly expanding the technological capabilities of the DZ-98 grader. On the rear hitch, you can install a ripper-scarifier, with which the driver of the motor grader loosens the soil. An additional wing can be installed on the grader blade, allowing the snow mass to be thrown onto the side of the road during snow clearing. An optional side blade allows snow to be cleared behind fences.
All the main functions of the D3-98 motor grader are performed with the help of a special working body, which is a blade with a knife mounted on the machine frame and powered by a diesel engine. They can perform the functions of lowering, lifting, turning in a vertical and horizontal plane.
This motor grader has excellent maneuverability and change in the angle of installation of the blade in planes, and the blade can also be taken out to the side.
In order to increase labor productivity and improve the working conditions of the operator in this technique, containing the main frame, balancers, automatic control of the blade position, the working body and proportional sensors. In addition, an additional sensor is mounted on the second balancer.
The motor grader has a wide range of interchangeable working equipment (swivel dozer blade, side grader blade, rear ripper).
It is customary to start a review of technical data with the engine. The DZ-98 is equipped with the YaMZ-238NDZ, which is popular for Russian heavy equipment. It should be noted that the car is produced in two modifications, one of which is equipped with a Cummins engine. Both engines are diesel.
Total information motor grader DZ-98 |
|
| Motor grader class | |
| Width (with blade in transport position), mm | |
| Height (without flashing beacons), mm, no more | |
| Longitudinal base, mm | |
| Front wheel track of the grader, mm: | |
| Narrow | |
| broad | |
| Rear wheel track of the grader, mm: | |
| Narrow | |
| broad | |
| Ground clearance of the grader, mm: | |
| under the blade in transport position | |
| under the front axle | |
| under the rear axle | |
| under the suspension of the middle and rear axles | |
| Motor grader weight, kg: operational | |
| front axle | |
| attributable to the middle and rear axles | |
| Static ground load at operating weight, N (kgf): | |
| on a blade mounted perpendicular to the longitudinal axis | |
| on the scarifier's teeth | |
| The number of gears of the DZ-98 grader: | |
| when moving forward | |
| when moving back | |
| The speed of the motor grader at the rated speed of the engine crankshaft, km / h: | |
| when moving forward: | |
| I transfer | |
| 2nd gear | |
| III gear | |
| IV transfer | |
| V gear | |
| VI gear | |
| when moving backward: | |
| I transfer | |
| 2nd gear | |
| III gear | |
| IV transfer | |
| V gear | |
| VI gear | |
| Minimum turning radius when driving on dry concrete surface, m | |
| The slope of holding the grader with the parking brake,%, not less | |
| Braking distance of a motor grader moving at an initial speed of 30 km / h on a horizontal section of dry asphalt with the clutch disengaged, m, no more | |
| Braking distance of a motor grader moving at an initial speed of 30 km / h when braking by an emergency system (in case of failure of one of the circuits), m, no more | |
DZ-98 engine |
|
| Type of | diesel |
| Model | YaMZ-238NDZ Cummins M- 11C265 |
| Rated power, kW (h.p.) | 173 (240) 202 (275) |
| Rated speed, rpm | |
| Start | starter |
Transmission |
|
| Type of | mechanical, with all-wheel drive, with a front axle disengagement mechanism |
| Hydraulic pump drive reducer | single row with flexible coupling |
| Clutch | dry, two-disk, permanently closed with hydraulic maintenance of its drive, with a brake on the driven shaft |
| Transfer gear | single row for driving the middle and rear axles with parking brake |
| Parking brake | belt type |
| Intermediate gears to bridges | gimbals |
Chassis |
|
| Wheel formula | |
| Leading bridges | |
| Steering bridge | front |
| Main gear of bridges | single-stage, tapered, no differentials |
| Final drives of axles | single-stage, cylindrical, with internal gearing |
| Half-shafts | fully unloaded type |
| Wheel brakes | multi-disc with sintered discs operating in an oil bath |
| Middle and rear axle suspension | balancer with reaction rods, providing pumping of bridges in the vertical plane |
| Front axle suspension | articulated, providing pumping of the bridge in the transverse plane |
| Tire size, inch | 16.00-24 or 20.5-25 |
| Tire pressure, MPa (kgf / cm2) | 0,23…0,28 (2,3…2,8) |
Work equipment (DZ-98 motor grader) |
|
|---|---|
Track paving |
|
| The volume of a prism drawing in a bulldozer position, m3, not less | |
| The width of the blade in the track position, mm, no more | |
| Blade height, mm, not less | |
| Main cutting angle when bulldozing blade position | |
| Blade angle back and forth from the bulldozer position in the plan, not less | |
Bulldozer |
|
| The volume of the drawing prism, m3, not less | |
| Blade width, mm, not less | |
| Blade height, mm, not less | |
| Lowering the blade below the support surface, mm, not less | |
| Blade main cutting angle | |
Loosening |
|
| Number of teeth of ripping equipment | |
| Maximum deepening of the ripper tooth equipment, mm, not less | |
| Capture width of ripping equipment, mm, not less | |
Grader blade |
|
| Blade length, mm, not less | |
| Blade height with knives, mm, not less | |
| Cutting angle | |
| The angle of cleaning the slopes at an angle of capture in the plane of the slope is not less than 45 ° | |
| Cuvette depth, m, not less | |
| inner wall slope | from 1: 2 to 1: 3 |
| outer wall slope | from 1: 1 to 1: 1.5 |
| Angle of installation in the horizontal plane, full-turn blade | |
| The angle of the part-turn blade from the position perpendicular to the longitudinal axis of the DZ-98 motor grader | |
| Side extension of the blade in both directions relative to traction frame, mm, not less | |
| Lowering the blade below the supporting surface, mm, not less | |
Additionally |
|
Control |
|
| Gearbox control, multiplier, reverse and front axle | mechanical |
| Clutch control | mechanical with hydraulic maintenance |
| Front wheel steering | hydraulic |
| Brake control: | |
| wheeled | pneumatic |
| parking | mechanical |
| Working bodies management | hydraulic |
Electrical equipment |
|
| Voltage, V | |
| Starter power, kW (hp) | |
| Rechargeable batteries: | |
| type of | |
| number | |
Filling tanks capacity |
|
| Fuel tank of the grader, l | |
| Engine cooling and heating system, l | |
| Engine lubrication system, l | |
| Hydraulic system of the grader, l | |
| Gearbox, hydraulic pump drive reducer, transfer case, l | |
| Main gear of rear, middle axles (each), l | |
| Main gear of the front axle, l | |
| Onboard axle reducer, l | |
| Wheel brake, l | |
| Anti-freeze fuse, l | |
| Blade rotation reducer, l | |
Technical and economic indicators |
|
| Hydraulic system working fluid consumption, g / engine hour, no more | |
| Specific fuel consumption, kg / m3, no more | |
Reliability indicators |
|
| 80% resource before the first overhaul, engine hours, not less | |
| Mean time between failures, engine hours, not less | |
| Technical utilization factor, not less | |
| Specific total operational labor intensity of periodic technical maintenance, e.h / motohour, no more | |
| Operational labor intensity of the shift technical service, person / hour, no more | |
Ergonomics indicators |
|
| Temperature at the driver's workplace, ° С: | |
| not less | |
| at a relative humidity of 40-60%, not higher | |
| at relative humidity 60-80%, not higher | |
| for areas with an average air temperature of 13 hours hot month, exceeding plus 25 ° С, not higher | |
| Efforts on the controls, N (kgf), no more: | |
| on the steering wheel when the DZ-98 motor grader is moving at a speed of at least 8 km / h on a horizontal section with a dry, hard, even surface | |
| on the engine control pedal | |
| on the control levers of the implements used in each working cycle | |
| on the control levers of the machine used when moving it by its own motion | |
| on pedals like brake | |
| on levers and pedals used no more than five times per shift | |
| Equivalent sound level at the driver's workplace (after the motor grader has worked 300 hours) dBA, no more | |
| Vibration Hygiene Standards and Vibration Performance Requirements | according to GOST 12.1.012-90 |
Environmental indicators |
|
| Indicators meet the standards: | |
| GOST 12.1.005-88 | the level of gas pollution at the driver's workplace |
| GOST 17.2.2.02-86, GOST 24028-80 | exhaust smoke |
| GOST 17.2.2.05-86, GOST 24585-81 | emissions of harmful substances with exhaust gases |
Some technical and economic indicators
- DZ 98 fuel consumption - 0.15 kg / cu. m.
- Fuel tank capacity - 485 liters.
- The hydraulic system of the machine holds 120 liters of working fluid.
- Working resource in engine hours (minimum) - 8400.
- The coefficient of technical application is not less than 0.85.
- Labor intensity - 0.95 person / h.
- Ergonomics - 14-31 degrees, depending on climate conditions.
- Environmental standard - GOST 12.1.012-90.
- The emission of exhaust gases and the level of smoke in the workplace comply with the standards of GOST 17.2.2-02.86 and 17.2.2-05.86.
Engine
YaMZ-238, mainly used as a power unit, belongs to the Euro-1 ecological class and has a long service life. The motor power is 240 hp / 173 kW. The rated crankshaft speed is 1700 rpm. The engine is started by a starter.
Cummins M-11C265 has a power of 275 hp / 202 kW. Rated speed - 1700 rpm. Environmental class Euro-1. The motor is started with a starter. The specific fuel consumption of the DZ-98 motor grader in the minimum value is 220 g / kW * h (162 g / hp * h).
Gear box
The motor grader is equipped with a six-speed manual transmission (6 forward and 6 reverse), which is considered one of its advantages. The peculiarity of heavy equipment lies in the areas and areas of its application. In difficult conditions, a manual transmission is preferable, as it provides a certain amount of power and more opportunities for equipment. The maximum travel speed is 41 km / h forward and 47 km / h reverse.
The gearbox is equipped with four-wheel drive and is complemented by a front axle disengagement mechanism. The transmission system consists of:
- single-row hydraulic pump drive gearbox with elastic coupling;
- dry double-disc permanently closed clutch with hydraulic servicing of the drive and brake of the driven shaft;
- transfer case for driving the rear and middle axles with a hand brake;
- band-type handbrake;
- intermediate cardan drives to bridges.
Chassis and suspension
The DZ-98 motor grader is equipped with a 1x3x3 wheel arrangement and three driving axles. The front axle is steerable and obeys the steering mechanism. The main gear is single-stage bevel. There are no differentials in the design. Fully balanced axle shafts, sintered multi-disc oil bath brakes, and single-stage cylindrical side axle reducers combine to deliver amazing flotation and power to the entire chassis.
Suspension of the middle and rear axles is made with balancers in the form of reaction rods, which provide vertical pumping of the axles. In contrast to this, the front axle has a hinge device that allows it to be pumped in the transverse plane. In this way, the machine becomes stable even under heavy loads. The parking brake is capable of holding the vehicle at an angle of 15 degrees.
1- balancer; 2- bracket for attaching the balancer to the frame of the motor grader; 3- ball pin; 4- jet rod; 5- adjusting nut; 6- centering pin; 7- spacer bar; 8-stop; 9- cover of the ball bearing of the balancer; 10- adjusting shims; 11- stuffing box body; 12- axis of balancers; 13- balancer axle cover; 14- nut; 15- lock washer; 16 - thrust washer with a lock; 17- sleeve; 18 - fixed bushing; 19- sealant; 20 - washer; 21- conical spring; 22- gasket; 23- clip; 24- rear axle; 25- locating pin of the rear axle; 26- ball joint
Frame
Welded structure of head, main and rear pipe. The front axle, removable executive equipment, ball-type traction frame support are fixed on the head part. The pipe of the main part has brackets for attaching the cardan, which transfers rotation to the front axle. The cavities of the pipe part serve as a receiver for the brake air system. Two side members are attached to the rear of the frame device. Modular mounting on the frame of hinged devices is allowed. Equipment suspension mechanisms are of the same type in design.
Hydraulic system
Through the devices of the system, the executive bodies, clutch, movement and maneuvering of the grader are controlled. Gear pumps are installed in two circuits of the hydraulic system, and hydraulic cylinders are used as actuators.
A hydraulic motor can be used in the blade swing mechanism.
1- hydraulic steering wheel; 2- hydraulic motor; 3 ~ hydraulic cylinder of additional working equipment; 4- hydraulic cylinder for pulling out the traction frame;
5- wheel steering cylinder; 6- hydrojunction; 7.22 - hydraulic cylinders for blade control; 9- filter; 10- servo mechanism; 11-pump NSh-71L; 12- pump NSh-50; 13.20 - pipelines; 14- breather; 15- valve; 16- hydraulic tank; 17- steering safety valve; 18- oil dipstick; 19- filler plug; 21- distributor; 23- blade extension hydraulic cylinder
Pneumatic system
A double-circuit device that provides a drive for the wheel brakes and the lever for the suspension of the traction frame equipment. The brake drive provides independent operating and emergency braking modes. Before starting the movement of the unit, compressed air is pumped into the receiver.
The pressure is controlled by a light alarm.
Equipment
A wide range of working equipment is provided for the DZ-98 motor grader. Track laying, bulldozing and ripping equipment is available to the customer, as well as a grader blade as standard. Aggregation takes place with a front or rear hydraulic linkage system.
The width of the blade with the track-laying equipment is 3400 mm, the height is 950 mm. The cutting angle of the soil is 48 degrees. The volume of the drawing prism in the bulldozer position is 3 m3. Lowering the equipment below the supporting surface - at least 200 mm.
Dozer equipment has a blade width of at least 3200 mm. The volume of the drawing prism is 2.57 m3. The blade height is 970 mm. The main cutting angle is 55 degrees, the sinking below the support surface is at least 110 mm. The ripper for the DZ-98 grader has 5 teeth, a maximum depth of 230 mm and a width of 1800 mm.
Of greatest interest to buyers of DZ-98 is a grader blade. The length of the equipment is at least 4200 mm, the height with knives is at least 700 mm. The standard blade can work at an angle of 30 to 70 degrees. The angle of cleaning of slopes in standard conditions can reach 90 degrees. The blade extends laterally by at least 1050 mm relative to the side frame. The minimum lowering of the grader equipment below the supporting surface is 500
dimensions
In the basic modification, the DZ-98 grader has the following dimensions:
- length - 10800 mm;
- width (blade in transport position) - 3220 mm;
- cabin height without flashing beacons - 4000 mm;
- longitudinal base - 6000 mm.
Track (depending on the type of tires selected): front - 26222-2696 mm, rear - 2502-2576 mm. Ground clearance of the motor grader:
- 350 mm - under the blade in the transport position;
- 615 mm - under the front axle;
- 440 mm - under the rear axle;
- 395 mm - under the suspension of the rear and middle axles.
The operating weight of the grader is 19,500 kg. The mass is distributed in the following proportions:
- on the front axle - 5660 kg;
- on the rear and middle axles - 13 850 kg.
The machine creates a static load on the ground:
- blade in a position perpendicular to the axis - 103 kN (10500 kgf);
- on the scarifier teeth - 45.4 kN (4630 kgf).
The maximum turning radius is 18 m. The braking distance on the horizontal section with a residual motor grader speed of 30 km / h does not exceed 14 m, when braking by the emergency system - no more than 41 meters. The values were measured on a dry concrete surface.
Application
Due to its high power and productivity, the machine can work both in road and municipal construction, in irrigation and melioration systems. The equipment allows you to use the grader for loosening and excavating soil from the first to the fourth grade. The technique is actively used in the construction of airfields and for the production of expensive jobs of the highest complexity.
Advantages:
- Selection of a gearbox with a mode of operation through friction clutches.
- Optional installation of hydromechanical transmission units is possible.
- The all-wheel drive of the axles ensures the use of the machine on soft ground, high traction rates on the moldboard, maintaining direction when forming road ditches.
- The part-turn moldboard knife allows adjusting the traction force of the unit by adjusting the amount of material capture in width without changing the vertical cutting parameter. Due to this, the number of passes is reduced, the quality indicators of surface profiling increase.
- Multi-disc wheel brakes do not require adjustment, are durable and reliable.
- The steering column and operator's seat are adjustable for increased driving comfort.
Control
The motor grader is controlled from the all-metal cab. Control devices are located on a panel under the roof. The sprung seat and steering column are adjustable for the operator's height.
The cabin is equipped with ventilation and heating devices. All-round glazing and lights provide an adequate view of the grading area.
The gearbox is shifted with a lever, the front wheels and actuators are hydraulically controlled, the wheel brakes are pneumatically controlled.
Overview
DZ98 has been produced by the Chelyabinsk TZ since 1991, in terms of technical and price characteristics, it is available to the Russian consumer, in whose opinion, among the representatives of modern Russian-made equipment, this grader is indispensable for difficult working conditions and climate. The DZ 98 grader costs relatively low, which distinguishes it favorably against the background of its high ability to work in different conditions and productivity.
A grader that has no analogues in Russia; such a review is quite rightly deserved by the DZ 98 motor grader.
The complete set of this model allows it to be used in the road service for the construction and maintenance of roads, in the development of soils from 1 to 4 categories, the construction of railways, airfields, land reclamation and hydraulic engineering.
The features of this model include the performance of basic functions by a working unit, which is a blade with a knife. This unit is driven by a diesel engine, it can be raised, lowered, rotated. DZ 98 motor grader in this version notable for maneuverability and can change the angle of installation of the blade and the removal of the blade to the side.
DZ 98 is successfully used in difficult road conditions and on heavy earthworks.
If the conditions of road work are difficult, such work is carried out in difficult climatic and relief zones - DZ-98V, equipped with a mechanical transmission and a sufficiently powerful engine, as well as a large set of working equipment - the only right decision in your choice for such work conditions.
The release of DZ 98 has been established in two modifications, which are completed for use in certain climatic conditions:
- Standard model(average climatic latitude with temperatures from -45 +45 degrees);
- Tropical pattern(for work in the tropics).
The benefits include:
DZ98 - Specifications
The DZ 98 grader is equipped with a diesel engine that is in rather high demand among the owners of Russian heavy equipment - YAMZ-238NDZ, but there is another type of machine with engineCummins.
YaMZ - 238 and Cummins M-11C265 - are engines of the ecological class Euro - 1, they have a long service life, which has a good effect on productivity and promotes the DZ 98 motor grader.
The technical characteristics of the transmission and chassis represent a transmission with a mechanical transmission, which is indispensable in difficult working conditions.
Maximum speed with which the grader can move - 41 - 47 km / h.
The gearbox provides a 4-wheel drive equipped with a front axle disconnect unit for a DZ 98 grader.
The technical characteristics of the chassis include: three drive axles with 1X3X3 wheels, a front axle controlled by a steering mechanism, the main gear is single-stage, differentials are not provided.
Vertical pumping of the axles is provided by the suspension of the front and rear axles, in the form of jet rods. The machine is designed to withstand heavy loads and is braked at a 15 degree angle.
Device and functional equipment
A wide selection of technical equipment that can be equipped with the DZ 98 motor grader is characteristic. The technical characteristics of the device and equipment of this unit also include the availability of use track laying, bulldozer, loosening equipment not counting the standard grader blade.
Of great interest to the buyer is the grader blade included in the device of the motor grader with the following parameters:
- Length - 4200 mm,
- Height with knives - 700 mm.
Dimensions DZ-98
In its main modification, the DZ-98 heavy grader is characterized by dimensions:
- Length -10800 mm,
- Width - 3220 mm(blade in transport position)
- Cab height - 4000 mm.
- Operating weight - 19,501 kg(the front axle accounts for 5660 kg, and the rear and middle axles - 13 850 kg).
Having studied the main technical characteristics and the device of the DZ 98 motor grader, we can confidently conclude that this technique is most suitable for heavy grader work, in terms of its quality and price characteristics, it is suitable for a domestic entrepreneur and organizations engaged in construction work.
Types of modifications DZ 98. Technical characteristics of DZ 98VM.
There are many modifications of this motor grader:
- DZ-98V- models 00002,00012,00022,00072,00112, 00122,00142,00152,00172,
- DZ-98V- models 62012, 62072.62102, 62112, 62122, 62142, 62152.62172
- DZ-98VM(DZ-98V 73112)
All models are equipped with YaMZ-238ND3 or Cummins Euro2 engines; YaMZ-236NE2.
Modifications differ in mechanical or hydromechanical transmission; full-revolving or part-revolving grader blade, they may not have additional equipment, and may be able to install additional equipment, they may have both front and rear loosening equipment; some models have hardware.
If your company is engaged in road construction, and the volume of work is large, it is the DZ-98B motor grader that is designed for these purposes.
DZ-98VM modification
Modification of the DZ-98VM motor grader (DZ-98V 73112) - a fundamentally new model designed for work on soils of 1-4 categories is equipped with Cummins Euro2 engine.
In the equipment of the DZ 98 motor grader, the manufacturer has provided for the possibility of installing the engine at the request of the customer. Cold-resistant steel frame, manual transmission.
The model has hydraulic valves Valvoil (Italy). The hood of the model is fully tilted, a new cab is installed, equipped with an Italian steering column, a large selection of attached attachments.
The DZ 98 operating manual can be seen on the manufacturer's website - the company "Automobiles and Tractors".
If you decide to purchase a DZ 98 motor grader, you should be well acquainted with its technical characteristics, which will not leave you indifferent, as well as the price of this machine, which is up to 6,100,000 rubles and will depend on the modification and the amount of equipment. In addition, the grader has parts and mechanisms that are reliable in operation, and has a presentable appearance.
The DZ 98 motor grader is a special construction equipment designed to perform a number of earthmoving operations. It effectively handles terrain grading, construction operations and road works on any soil category.
Thanks to its excellent technical characteristics, the car repeatedly took first places in various competitions. It has a high weight, which allows it to be used for heavy work, regardless of operating conditions. To increase the productivity of the DZ 98 motor grader, it is equipped with auxiliary bodies and units.
The equipment has been produced by the Chelyabinsk Road Construction Machines (CHSDM) plant since 1978. For a long time, special vehicles were improved and modified, which made them more efficient and versatile. Manufacturer of 98 is the RM-Terex concern, which includes ChSDM.
Applications
The equipment copes with various tasks in the construction, road and municipal services, the laying of irrigation and land reclamation systems. The car works with soils of any category, at airfields and in other places when constructing roads, tracks and lanes.
Efficiency is ensured when using a heavy grader DZ 98 for:
- loosening of all types of soil;
- destruction of the roadway;
- creating an asphalt concrete mixture during laying;
- alignment of territories;
- snow removal;
- transportation of land to the dump;
- production of recesses for the construction of highways;
- construction and repair of roads covered with soil or gravel.
Features and Benefits
The blade of the DZ 98 motor grader can be installed at different angles and carried out beyond the dimensions of the machine, this provides ease of control and maneuverability. To increase productivity and improve the quality of work, it is planned to install sensors, attachments and an automatic control system for its position, balancers, a frame, an auxiliary sensor. The improved frame of the DZ 98 motor grader makes it possible to mount an additional ripper at the rear.
6x6 transmission with cardan drive of the front axle is one of the features of the machine. The hydromechanical unit guarantees an increase in traction force and a smooth ride. Due to the large number of advantages, the high popularity of the car among Russian consumers is ensured:
- maintaining high performance at a temperature of -50 / + 50 degrees;
- installation of additional equipment;
- durability;
- ease of use and maintenance;
- reliability;
- the ability to adjust the position of the blade;
- Ease of controls;
- cross-country ability and maneuverability;
- the ability to operate with soils of all categories.
Specifications and dimensions
The technical characteristics of the DZ 98 motor grader include:
| Battery | 2x6ST-190A |
| Checkpoint | full mechanical drive with switchable front axle |
| number of speeds | 6 forward and backward |
| intermediate speeds | gimbals |
| starter | 8.2 kW and 24 V |
| travel speed | 47 km / h |
| hydraulic pumps | 1-row drive, flexible coupling | 103 kN (dump) and 45.4 kN (scarifier) |
| turning radius | 18 m |
| weight of the grader DZ 98 | 5.66 / 13.85 t |
| rise | 15 degrees |
| clutch | dry, closed, with brake steered shaft |
| reducer | 1-row with "handbrake" for two rear axles |
The overall dimensions of the DZ 98 motor grader are 10.8 mx 3.22 mx 4 m.The wheelbase length is 6 m, and the front / rear track width is 2.62-2.7 m / 2.5-2.58 m ...
Individual dimensions of the DZ 98 motor grader may differ depending on the position of the blade and the place of measurement. This also applies to clearance:
- 0.35 m - transport position;
- 0.395 m - under the rear and front axle suspension;
- 0.44 m - under the rear axle;
- 0.615 m - under the front axle.
Engine
Depending on the modification, several types of diesel units can be installed:
- motor grader DZ 98 YAMZ-238NDZ (173 kW or 240 hp at 1700 rpm). It complies with Euro-1 standards and is characterized by durability;
- motor YAMZ-236NE2 (169 kW or 230 hp at 2100 rpm);
- installation Cummins М-11С265 (202 kW or 275 hp at 1700 rpm). It complies with the Euro-1 standard.
The average fuel consumption of the DZ 98 grader is 220 g / kWh.
Chassis
The gearbox of the DZ 98 motor grader with 6 steps in both directions is installed as standard, which allows you to quickly and efficiently cope with the tasks. When working in difficult conditions, the manufacturer recommends using a mechanical transmission, which allows you to create a reserve of power and increase efficiency. Forward the car can move at a speed of 41 km / h, backward - 47 km / h. The gearbox is equipped with all-wheel drive or only on the rear axle.
The transmission includes:
- intermediate cardan speeds on the axles;
- "Handbrake" tape;
- transfer case for driving two axles with a "handbrake";
- dry 2-disc clutch of a closed type with a hydraulic servo drive and a brake mechanism;
- 1-row hydraulic pump drive gearbox with flexible coupling.
The chassis of the DZ 98 motor grader with a 1x3x3 drive is installed on three driving axles. The front axle is steered by the steering wheel. The main gear is represented by a bevel 1-stage unit. The "hodovka" does not include differentials, and the axle shafts are mounted of an unloaded type. Multi-disc brake units, they function in oil, are made of metal and ceramics. To improve efficiency and traction characteristics, the use of cylindrical 1-stage lateral gearboxes is provided.
Suspensions of a pair of axles are made with balancers in the form of rods, and a hinge on the front axle serves as a counterweight. They are designed to be pumped in different directions. "Handbrake" is able to hold the car on a base slope up to 15 degrees.
The gearbox of the DZ 98 motor grader allows you to develop a fairly high speed, and for a complete stop it will take 15 m, provided that it is moving at 30 km / h.
Operator's cab
The design of the cab resembles a hexagon, which guarantees a large viewing angle and safety. The head of the unit can be put on and removed at any time for easy transport on a low loader trailer or in a van.
The interior space is characterized by comfort and ergonomics. The seat can be adjusted in several directions. An air conditioner is optionally installed, which creates the required microclimate in the hot season.
Excellent technical characteristics of the grader DZ 98 are preserved when working in any climate. To optimize the operation of the grader, the installation of accessories and functions is provided. For the southern regions, air conditioning will be required, and for the northern regions, pre-heaters, additional interior insulation and a high-power heating system will be required.
Ease of use and maintenance
The device of the DZ 98 motor grader assumes easy access to the main service points. The engine compartment, muffler and fuel filter are located under the hood. The one-piece hood eliminates the appearance of a large amount of noise and vibration during operation.
The front axle can be connected and disconnected, which guarantees economy in various operating conditions.
The main indicators of a car include:
Maintenance of the DZ 98 motor grader is carried out in accordance with the intervals established in the passport.
Work equipment
In addition to standard equipment, additional equipment can be installed. The manufacturer has provided various options for use in many areas of activity, which expands the scope of the machine and its efficiency. To loosen the soil, a ripper-scarifier is mounted at the rear of the equipment. An auxiliary wing is attached to the grader blade, which is necessary when clearing the road from snow, and the clearing behind the fences is carried out using the auxiliary side blade.
Additional working bodies are:
- ripper;
- dozer blade;
- equipment for the device of tracks;
- snow dump;
- pickaxe.
Technical characteristics of the grader DZ 98 when working with a track-laying device are presented:
The dozer blade allows you to clear a 3.2 m wide strip, capturing 2.57 m3 of material. The organ height is 0.97 m, the cutting angle is 55 degrees, and the digging depth is 0.11 m.
The ripping equipment is equipped with five teeth, it loosens to a depth of 0.23 m and a surface capture of 1.8 m.
The control of the DZ 98 motor grader with a grader blade is standard. The plow is equipped with a knife installed on the supporting structure of the special equipment, it can be rotated in all planes. The main purpose is to level the artificially created surface when laying asphalt pavement. In cold weather, the working body copes with cleaning the surface from snow and ice.
The main characteristics of the grader when installing a standard working tool.
The production of the first version of the DZ-98 motor grader was launched in 1972. Until now, it remains the heaviest model among Russian-made cars. Can be used in the North
Photo source: rm-terex.com
The assembly of DZ-98 model motor graders is carried out at the Chelyabinsk Road Construction Machines (CHSDM) plant, which is currently part of the RM-Terex JV. Previously, the enterprise, located in the Chelyabinsk region, was called "Plant named after Kolyuschenko".
Over the past decades, the model has repeatedly gone through the process of modernization. Various modifications of the motor grader were available on the market. The current model is indexed DZ-98V. The annual production of the machine is up to 300 copies.
Technical characteristics of DZ-98
Below are the main technical characteristics of the modern version of the motor grader.
The features of the model are a controlled drive axle, the ability to mount a manual gearbox with a gear change function. The steering box is adjustable. The number of gears for both forward and reverse is the same - six.
The minimum turning radius (the value is given for cases of movement on a dry concrete surface) is 18 m. The slope of holding the grader with the parking brake is at least 20%.
Weight
The operating weight of the model is 20,600 kg. Weight without additional equipment - 19 680 kg. The mass on the front axle is 5660 kg, on the middle and rear axles - 14,020 kg.
Photo source: rm-terex.com
Engine
The engine installed on the motor grader is certified according to Euro-2 standards. In addition to the currently standard YaMZ-238ND3 engine, there are instances with the YaMZ-236NE2. The power in the second case is lower - 169 kW.
There is also a DZ-98VM version with a Cummins M-11C265 diesel engine (generates up to 202 kW).
Cab, working equipment
DZ-98V has a hexagonal cockpit. The designers have provided for the possibility of easy dismantling of the cab, which simplifies the transportation of the machine. An air conditioning system is available as an option. Also, the buyer can order a damping system and / or the function of the floating position of the grader blade, an automatic leveling system.
The gearbox, multiplier, reverse and front axle are controlled mechanically. Clutch control - mechanical with hydraulic booster. Hydraulics are responsible for turning the front wheels.
Photo source: rm-terex.com
As a result of the modernization of the frame, it became possible to install rear-mounted loosening equipment. The list of available working tools includes a snow plow, a front or rear ripper, dozer and grader blades, and track paving equipment. The part-turn blade allows traction to be adjusted by varying its working width, resulting in fewer passes.
Dimensions DZ-98
Maintenance
An automatic lubrication system is offered to facilitate maintenance.
The DZ-98 motor grader is equipped with multi-disc wheel brakes operating in an oil bath. This version does not require adjustment during operation.
Modifications
Buyers have access to modifications of the DZ-98 motor grader with a mechanical or hydromechanical transmission. The grader blade can be full-turn or non-turn.
In addition, in addition to the usual version (from +45 to + 40 ° C), the manufacturer offers a modification for regions with a tropical climate. The career version assumes the installation of two hydraulic cylinders and tires of size 20.5-25. This modification is characterized by a lighter turning of the front steering wheels.
Analogs
Among the analogues from well-known manufacturers are:,
