Motor grader d 98 and d 98v: technical specifications, manufacturer, device and instruction manual

The DZ-98 motor grader, belonging to the 250 class, is built according to the hood design, which provides access to the power plant and auxiliary units. The machine is designed to perform energy-intensive excavation work on soils of categories 1-4. The equipment can be operated at temperatures -45…+40С°. Machines adapted for tropical climates are assembled on separate orders.

DESCRIPTION AND PURPOSE

The DZ 98 motor grader is a product of the Chelyabinsk Tractor Plant. The model appeared on the Russian market in 1991. DZ 98 is the most powerful product of the brand and has no competitors in the Russian market. In addition to the standard technical parameters inherent in the factory version, the model can be improved and modified without significant intervention in the design.

The DZ 98 series is used to perform various excavation and profiling operations with soil of categories I-IV. Design features make the DZ 98 most effective when performing large volumes of work in the following areas:

• pickling (loosening worn-out road surface or soil);
• major repairs or construction of gravel and dirt roads;
• clearing the territory and roads of snow;
• installation of a trough under the foundation for road construction;
• transportation of inert materials;
• planning of large areas;
• moving and leveling soil.

The most common models in the series are:

• DZ 98 – basic variation;
• DZ 98V - version with a driven front axle, the ability to adjust the steering column, a blade rotation function and an expanded range of engines.

The grader is available in 2 versions:

• standard version for work in mid-latitudes (from – 45 to +40 degrees);
• tropical version for areas with a tropical climate (dry or humid).

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Purpose and device

DZ-180 is a medium-sized motor grader that works with soil. Among its main advantages are the special design and powerful engine. In addition, DZ-180:

1. Very convenient for road construction. Due to the presence in the design of a bulldozer blade, a grader blade with turning circles and a ripper-pick, the range of its operating capabilities is quite large.

This allows it to work on various soils from categories I to III, with different terrain of the road being laid.

• With its help, not only the planning of areas is carried out, but also the construction and profiling of embankments.
• DZ-180 is used to form a road trough.
• It is constantly used to mix soil with various additives and binding ingredients.
• In addition to special SDR, it is often used to clear roads, roadsides and squares of snow.
• Using a ripper-pick, they open up asphalt or cobblestones on the road surface.
• Road workers constantly use this grader when repairing roads. It is also used to maintain roadside ditches and Free operation manual for motor grader D-180, ditch and embankments in working condition.
• And here you will find useful information about the Vogele Super 1800-2 asphalt paver.

Motor grader DZ - features, manufacturer:

A grader that has no analogues in Russia; The DZ 98 motor grader quite rightly deserved this review.

The configuration 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 categories 1 to 4, in the construction of railways, airfields, land reclamation and hydraulic engineering.

The features of this model of construction equipment include the performance of basic functions by a working unit, which is a blade with a knife. This unit is powered by a diesel engine; it can rise, fall, and rotate. The DZ 98 motor grader in this version is distinguished by maneuverability and can change the angle of the blade and move the blade to the side.

DZ 98 is successfully used in difficult road conditions and heavy earthworks.

If the conditions of road work are difficult, such work is carried out in difficult climatic and relief zones - the DZ-98V, equipped with a mechanical transmission and a fairly powerful engine, as well as a large set of working equipment, is the only correct solution in your choice for such work conditions.

The DZ 98 is produced in two modifications, equipped for use in certain climatic conditions:

• Standard model (average climatic latitude with temperatures from -45 +45 degrees);
• Tropical model (for work in the tropics).

The advantages include:

• Multi-disc wheel brakes operate in a special oil bath, are reliable, and do not require adjustment during long-term use.
• Front drive axle , which functionally provides high cross-country ability, greater traction on the blade, the most complete use of the vehicle's adhesion mass, and stability.
• Installation of a manual transmission , which allows you to change gears using friction clutches.
• Adjustable steering box , improving grader control;
• Partial rotation blade, when used, makes it possible to regulate the traction force;
• Possibility of using a FOPS-ROPS cabin, Konvekta air conditioning, Grammer seats.

Motor grader DZ-98. Modern modifications

By purchasing a grader from us, you can be sure that your new equipment will last a long time. All our graders (DZ-98, A-98, DZ-298, DZ-122, etc.) have a full manufacturer’s warranty, are provided with spare parts and can be serviced in our service center. When choosing where to buy a DZ motor grader, keep in mind that our company provides the best conditions. In addition, we will deliver the purchased grader with all the necessary documents to you anywhere in Russia.

Operating instructions

The operating instructions for the DZ motor grader contain a number of recommendations:

Specifications

Engine

The engine part of the machine is equipped with motors of the D-260.2 category series, having basic power parameters of 130 horsepower. At one time, some models of specialized transport equipment were equipped with powerful power units, which were marked A-01M and A-01MS, with power parameters designed for 184 horsepower. The engine compartment is equipped with a hydromechanical gearbox, which provides 4 main machine control speeds - for forward travel; as well as two shift speeds for reversing the machine. There are interesting technical characteristics of the fuel consumption of the DZ-143 motor grader, related to the 1st production series (DZ-143-1), where the manual transmission was equipped with 6 main speeds for the forward movement of the machine. The maximum permissible speed of the machine with raised attachments is 43 km/h. During the technological operation of the machine, the average speed of movement is set, which ranges from 4-68 km/h. For the wheel part of the car, a special formula 1x2x3 is provided. The car frame is equipped with a special design, which is made of a special grade of steel, thereby the car can withstand various physical loads, and the strength characteristics remain unsurpassed for cars of this class of performance. The absolute advantage of the machine is the quick transition from working to traveling mode, and vice versa.

Fuel consumption

Heavy type diesel is used as fuel. The maximum speed of movement during operation does not exceed 8 km per hour

Vehicles can quickly and without any problems transition from traveling to operating mode, which is especially important when carrying out construction work. The machine can be operated in all climatic zones, so it is not surprising to see the DZ 1243 grader in the northern latitudes of Russia

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 lights - 4000 mm;
• longitudinal base - 6000 mm.

Track (depending on the type of tires selected): front - 26222-2696 mm, rear - 2502-2576 mm. Motor grader ground clearance:

• 350 mm - under the blade in 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 teeth of the picker - 45.4 kN (4630 kgf).

The maximum turning radius is 18 m. The braking distance on a horizontal section at a residual speed of the motor grader is 30 km/h does not exceed 14 m, when braking with the emergency system - no more than 41 meters. The indicators were measured on a dry concrete surface.

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Specifications

Grader DZ 122 is a specialized, maneuverable machine with a full-rotating blade, initially located at an angle in the direction of travel. Its function is intended to shift the volume of the embankment to the side, filling small pits and pits. The operation is carried out in successive, numerous trips, using the capabilities of the dump. The hinged front blade allows you to perform the functions of a bulldozer. A ripper is attached to the rear of the frame, with a 1300 mm wide coverage, overburden operations up to 25 cm are carried out, right down to asphalt or cobblestones. Due to the range of rotation, the grader blade creates embankments or pits of a particular terrain. When giving preference to one or another DZ 122 model, you should be guided by indicators that determine the necessary operating functions of the machine:

• Geometric dimensions, which are 10100x2500x3620, taking into account the height of the flashing light and the weight of the equipment (14 tons).
• Track (2000mm) taking into account wheel camber of 20°.
• There are 2 driving axles, the third is rotary.
• Frame folding in both directions by 30°.

The blade is 2700 mm with a rise from the surface and a descent below the level of the blade by 350 mm. This option allows you to deepen (trough) roads. By turning the knife 90°, the side surface of the embankment or pit is processed. The wheel rotation angle is 45°.

Engine

Modifications of DZ 122 are often equipped with a V-shaped, 6-cylinder low-speed diesel engine YaMZ-236, with a speed of 1700÷2300. At minimum speed, 150 horsepower, the diesel consumes 165 g/l s/h. Depending on the configuration, conditions, operating mode, type of installed engine, the minimum consumption is 165 g/l s/h; maximum – 221.

YaMZ-236

The structures of the components and assemblies are mounted on a 3-axle articulated frame with a front axle and a 2-axle rear bogie. On the last one, at the back of the cabin, there is an A-01M engine with a power of up to 135 hp, fuel consumption of 180 g/l s/h. The wheels are mounted on hubs, and the trolley is on a rigid frame. Shoe-type impellers with hydraulic control. The robust frame features built-in bumpers and tow hooks in case of towing. With the exception of minor differences, the technical characteristics of the DZ 122A motor grader coincide with the performance indicators of both models.

Fuel consumption

DZ-122 can consume different amounts of fuel, which depends on the configuration of the model. The minimum possible value reaches 135 g/hp. h, and the maximum is 221 g/hp. h. On average, this motor grader consumes fuel in the amount of 165 g/hp. h.

Hydraulics

The determining factor in the operation of the grader is the hydraulic component of the control of the working mechanisms. Together with the electronic system, motor graders are equipped with hydraulic devices: pump-2, motor, distributor, lock, hinge, amplifier. The equipment is equipped with a main filter, a retardation valve, a working oil tank, pipelines, and high-pressure hoses. One of the pumps functions as a steering wheel drive. The second provides the remaining drives of the power mechanisms. The hydraulic motor is designed to convert the energy of oil flow into the energy of rotation of the blade mechanism through a gearbox.

The hydraulic distributor is a 10-section block with a safety valve. Serves to perform the operations of turning, tilting the driven wheels, lifting and extending the blade. Depending on the options available, hydraulic cylinders differ in size. Hydraulic locks are used to shut off cylinder channels during equipment downtime or unexpected pipeline failure. The hydraulic hinge supplies oil to the soil removal cylinders and changes the cutting angle of the embankment. The filter is mounted on the fuel line to clean the oil from small mechanical impurities.

Application

Thanks to its high power and performance, the machine can work both in road and municipal construction, in irrigation and land reclamation systems. The equipment allows you to use the grader for loosening and developing soils from the first to fourth classes. The equipment is actively used in the construction of airfields and for carrying out laborious work of the highest complexity.

Advantages:

• Selecting a gearbox with a friction clutch operating mode.
• Optional installation of transmission hydromechanical units is possible.
• All-wheel drive axles ensures the use of the machine on soft ground, high traction on the moldboard, and preservation of direction when forming road ditches.
• The part-rotating blade allows adjustment of the unit's traction force, adjusting the amount of material capture across the width without changing the vertical cutting parameter. Due to this, the number of passes is reduced, and 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, increasing driving comfort.

Features and Benefits

The blade of the DZ 98 motor grader can be installed at different angles and moved outside the dimensions of the machine, this ensures ease of control and maneuverability. To increase productivity and improve the quality of work, it is planned to install sensors, attachments and automatic position control systems, balancers, a frame, and an auxiliary sensor. The improved frame of the DZ 98 motor grader makes it possible to install an additional ripper at the rear.

The 6x6 transmission with cardan drive of the front axle is one of the features of the machine. The hydromechanical unit guarantees increased traction and smooth running. Thanks to a large number of advantages, the car is highly popular among Russian consumers:

• maintaining high performance at temperatures of -50/+50 degrees;
• installation of additional equipment;
• durability;
• ease of operation and maintenance;
• reliability;
• the ability to adjust the position of the blade;
• Ease of Management;
• cross-country ability and maneuverability;
• ability to operate with soils of all categories.

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Motor grader hydraulic system

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 rotation mechanism.

Blade rotation gearbox for motor grader DZ-98

Ease of operation and maintenance

The design of the DZ 98 motor grader provides easy access to the main service points. Under the hood there is an engine compartment, a muffler and a fuel filter. The one-piece hinged 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 the car include:

Maintenance of the DZ 98 motor grader is carried out in accordance with the intervals established in the passport.

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Operation of graders and motor graders

To ensure high productivity of graders and motor graders, it is necessary to strive to reduce cycle times, that is, work at the highest possible speeds. It is also necessary to achieve an increase in the volume of soil in the prism moved by the blade. However, you should not overload the machine and allow the tracks of the tractor towing the grader or the drive wheels of the motor grader to slip. When the chassis slips, wear increases and time is always lost, and if there is still a need to switch the clutch and gearbox, then the loss of working time becomes excessive and sharply reduces productivity.

The sequence of work of graders and motor graders during the construction and profiling of dirt roads is the same (Fig. 117).

Rice. 117. Scheme of profiling a dirt road for 15 passes (numbers 1 to 15 indicate the sequence of passes),

During the first pass, the road is divided in width and direction and therefore the first pass is the most responsible; Before the first pass, it is advisable to mark the outer edges of the ditches with pegs, which make it easier for the driver to maintain direction while driving.

During subsequent passes, the side ditches are deepened and the soil cut out from them is moved onto the road surface. With the last passes, the road surface is leveled (leveled) and profiled, that is, its surface is given transverse slopes (see Fig. 117, 15) to ensure water flow into the side ditches.

As a rule, graders make circular passes, i.e., during the first half of each pass, they process one side of the Roadway, and during the second half of the pass in the opposite direction, they process its second side. Thus, a dirt road with side ditches is constructed in 15 round trips.

Typically, dirt roads are built in sections 0.5–1 km long. The longer the section, the less relative time is lost on unproductive turns at the end of passes. The D-144 motor grader constructs from 1.5 to 1.8 km of dirt road per shift.

Trailed graders and motor graders can be used to build road embankments up to 2 m high from side reserves (Fig. 118).

The motor grader cuts out sequential layers of soil from the reserves and moves them into the embankment in parallel passes (Fig. 118, a). The work is carried out in the same circular passes as during the construction of dirt roads.

Rice. 118. Schemes for the construction of a road embankment: a - with a motor grader D-144; b and c - a hitch consisting of a five-blade plow and three D-20B graders, towed by an S-80 tractor. Arabic numerals indicate the sequence of vehicle passages; I - graders; II - five-blade plow; III - towing tractor; IV - towing ropes; V - wooden spacers

Road embankments can be constructed by coupling a five-blade plow and three D-20B graders, towed by one S-80 tractor. This construction method was proposed for flat areas by Ukrainian engineers A. A. Karkhov and T. I. Piyarsky and introduced into production by them in 1950. The five-mesh plow and graders (Fig. 118, b) are attached to tractor III with long ropes IV, which are protected from contact with the front wheels of graders by wooden spacers V.

The plow loosens the soil, and the grader blades, placed in plan at an acute angle to the direction of movement, shift the soil sideways and move it into the embankment. Blades for these works are equipped with extensions.

The length of such a coupling reaches 30 m, but even with such a length the turn is made with a radius of 20 m, which is quite acceptable in flat areas. The time for turning the clutch in reverse does not exceed 3 minutes.

Road embankments can be built with single trailed graders, but their productivity is 4-5 times less than the productivity of a five-blade plow and three D-20B graders.

Embankments and their slopes are planned using a slope planner, as well as a blade carried outside the frame.

A grader moving along an embankment uses a blade (Fig. 119, a) to level the surface of the roadway and moves the cut soil sideways to the edge of the embankment. A leveler attached to the blade cuts off the unevenness of the slope and throws all the cut soil down to the base of the embankment.

Rice. 119. Embankment planning scheme: a - grader D-20B with slope planner; b - two D-20B graders; 1 - blade with slope planner; 2— grader D-20B with a knife placed outside the frame; 3— grader D-20B with blade and slope leveler

On high embankments (Fig. 119, b), a second grader with a blade carried outside the frame clears the bottom of the slope, following behind the grader walking along the embankment, and also throws the soil down, from where excess soil is removed to the side by a bulldozer or the same graders . The work is done in circular passes.

This work can also be performed by motor graders.

Graders and motor graders excavate and level the trough for the road surface in the finished subgrade (Fig. 120). In this case, the volume of soil removed from the roadbed must be equal to the volume of soil in the roadsides.

The trough is cut out in circular passes along the road surface. The soil is cut out from the trough and moved to the side of the road; then the sides and bottom of the trough are planned and profiled, giving them transverse slopes for water drainage.

Planning and profiling of surfaces is carried out with a blade turned at an angle of 50-60° to the direction of movement; in this case, small mounds are cut off, and small recesses and holes are filled with cut soil. This way the surface is leveled.

Rice. 120. Diagram of the trough arrangement in the finished roadbed: I, III, V, VI, VII - cutting; II and IV - movement; III— leveling the bottom of the trough (a cross-section of the finished trough is shown above)

Old road pavements and soils are excavated in a series of successive passes. The picking depth is selected by the driver and depends on the resistance value of the material being picked.

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Graders are trailed machines that work in conjunction with tracked tractors or tractors, while motor graders are self-propelled machines. Graders and motor graders are designed for profiling dirt roads with the construction of side ditches, for the construction of road embankments, dams, shafts from side reserves, leveling of the roadbed, slopes, construction of the roadbed and terraces on steep slopes, as well as troughs in the finished roadbed for the construction of road bases . Medium and heavy graders and motor graders are used for mixing soil and gravel-crushed stone materials with binder additives on the road surface, for constructing and cleaning irrigation canals, as well as for repairing and maintaining roads.

The working body of the grader - a blade with a knife, located between the front and rear axles of the wheels - can have different settings in the plan and vertical plane, as well as a significant offset to the side, which allows you to perform a variety of work operations for cutting and moving soil and bulk materials (sand , gravel, snow, etc.).

Rice. 4.22. Diagram of a system of the Autoplan type for automatic control of the bulldozer blade DZ-54: 1 - drain pipeline into the tank; 2 - pipelines for supplying liquid under pressure; 3 - check valve with throttle; 4 — pipeline for supplying liquid under pressure; 5 — engine speed sensor; 6 — pendulum angular position sensor; 7 — control panel; 8 - overload block; 9 — control unit; 10 - battery; 11 reversible electric spool; 12 - drainage pipeline

Light graders for working with tractors should be designed for a traction force of 3-4 tf at a speed of 2-4 km/h, and heavy type graders - for a force of 10-12 tf at a speed of 2-3.5 km/h. Graders are characterized by the length of the main blade: light graders have a blade of up to 3 m, heavy graders have a blade of over 3 m.

According to the running equipment, graders with metal wheels and pneumatic wheels are distinguished. The advantage of metal wheels is low cost, ease of design and maintenance; disadvantages - low speed (no more than 5-6 km/h). Pneumatic wheeled vehicles can be transported under their own power at speeds of up to 30 km/h. According to the type of control of the working bodies, graders are distinguished with mechanical and hydraulic control.

Motor graders are classified by weight (the main parameter), the number of wheel axles and the type of wheel arrangement, the control system of the working bodies, the type of transmission and wheel steering control.

GOST 9420-69 provides for three types of motor graders: light (type DZ-99) weighing 9 tons for patrol and leveling work; medium (type D3-31) weighing 13 tons for profiling, road reconstruction and mixing materials on site; heavy (type DZ-98) weighing 19 tons for road construction and earthworks. Their power is respectively 75-90, 120-150 and 250-300 hp. With.

Motor graders are distinguished by the wheel scheme adopted for their chassis, which is determined depending on the wheel formula A X B XX C, where A is the number of axles with steered wheels; B - number of driving axes; B is the total number of axes.

The drive of the control mechanisms of the main working body of the Autogray-Dera - a blade with a knife - can be mechanical or hydraulic.

Based on the type of transmission, motor graders are distinguished with mechanical and hydromechanical transmission. To turn the steered wheels, motor graders are equipped with hydraulic or mechanical steering. Mechanical control is often equipped with a hydraulic or pneumatic booster.

Motor graders have such advantages as high mobility, maneuverability and the ability to be used in various works on construction, repair and maintenance of roads. Graders are inferior to motor graders in performance and maneuverability. The use of graders is economically justified by their structural simplicity, low cost and the ability to use agricultural tractors of classes 3 and 10 tf.

The light motor grader DZ-99 (D-710B) is commercially produced in various modifications, including with a 90 hp engine. e., with manual control (DZ-99-1-4), with the Profile-1 automation system (DZ-99-1-2), with the Profile-2 automation system (DZ-99-1-1 ) and with a 60 hp engine. e., with the Profile-1 automation system (DZ-99-2-2), with manual control (DZ-99-2-4), as well as a modification with a 90 l-, s. with hydromechanical transmission (DZ-99A-1-4); medium motor grader DE-31-1 (D-557-1) and its modification with hydromechanical transmission (DZ-31-2); heavy motor grader DZ-98 (D-395V) and its modification with a 165 hp engine. With. (DZ-98-1S). In addition, the fleet of construction organizations includes motor graders DZ-40 (D-598), DZ-2A (D-144A) and DZ-14A (D-395A).

The heavy DZ-1 (D-20BM) and light DZ-6 (D-241A) graders are commercially produced; the heavy grader with hydraulic control DZ-58 (D-700) is being mastered.

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Power unit

The machine is equipped with four-stroke diesel engines, V-shaped, eight-cylinder YaMZ-8482, YaMZ-238NDZ, YaMZ-238ND2 and twelve-cylinder YaMZ-240G.

Some models are equipped with a single-row six-cylinder unit U1D6-TK-S5 from the Ural Motor Plant or a Cummins M-11C265 engine produced by the company of the same name from the USA.

Photo: U1D6-TK-S5 engine

Free access to the engine and systems is provided by the hood casing. The air cleaning device and exhaust muffling system are located in the space under the hood.

The basic configuration is equipped with a YaMZ-238ND2 diesel engine with direct fuel injection and equipped with a turbocharging system. The power unit uses 0.15 kg of fuel to process a cubic meter of rock with a grader.

Control

The motor grader is controlled from an all-metal cabin. Control devices are located on a panel under the roof. The sprung seat and steering column are adjustable to suit the operator's height.

The cabin is equipped with ventilation and heating devices. All-round glazing and lighting fixtures provide sufficient visibility of the grading area.

The gearbox is switched by a lever, the front wheels and actuators are controlled by hydraulics, and the wheel brakes are controlled by pneumatics.

Unit frame

Welded structure consisting of a head part, a main pipe and a rear part. The front axle, replaceable actuator equipment, and a ball-type traction frame support are fixed to the head part.

The pipe of the main part has brackets for fastening the cardan, which transmits rotation to the front axle. The cavities of the pipe part serve as a receiver for the brake air system. Two spars are attached to the rear of the frame device.

Modular installation on the frame of attachments is allowed. Equipment suspension mechanisms are of the same type in design.

Additional functions of the motor grader

The basic equipment of the grader includes an automatic control system for the position of the blade and proportional sensors.

Additionally, DZ-98 can be equipped with:

• LS hydraulic system, which regulates the operation of hydraulic cylinders and ensures fuel economy;
• hydraulic dampers of the main blade, ensuring its “floating” position during operation;
• high-performance hydraulic pump and two hydraulic cylinders for turning the front wheels for work in quarries;
• LEICA automatic 2D and 3D leveling system;
• GLONASS satellite navigator;
• LINCOLN automatic joint lubrication system;
• rear view video camera;
• heating the fuel filter;
• lighting on 4 sides;
• modular system DYNOSET for working with hydraulic tools;
• heated rear view mirrors.

In addition to the usual one, the grader can have a tropical design for hot countries and regions.

Motor grader control process

Systems and mechanisms are controlled by:

Gearbox control mechanism DZ-98

• mechanically - gearbox, parking brake, front axle, reverse, multiplier;
• mechanically with hydroserving - clutch;
• hydraulically - by turning the front wheels, using attachments;
• pneumatically - with wheel brakes.

Transmission

A mechanical device that transmits torque to three axles allows the cardan of the first axle to be disconnected.

The purpose and design, as well as the technical characteristics of the DZ-180 motor grader can be found in the review prepared for you.

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The drive to the middle and rear axles is carried out through intermediate cardan shafts from a single-row transfer gearbox with a belt-type parking brake device.

The gearbox, clutch mechanism, and gear units driving hydraulic pumps are combined in a single unit and have a common lubrication system.

The gearbox with a multiplier mechanism provides 6 torque settings forward and backward.

The clutch is dry with two discs and has a hydraulic release servo.

Chassis

A DZ 98 motor grader gearbox with 6 stages in both directions is installed as standard, which allows you to quickly and efficiently cope with the assigned tasks. When working in difficult conditions, the manufacturer recommends using a mechanical transmission, which allows you to create a power reserve and increase efficiency. The car can move forward 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 axes;
• “handbrake” tape;
• transfer gearbox for driving two axles with a handbrake;
• dry 2-disc closed-type clutch with hydraulic servo drive and brake mechanism;
• 1-row gearbox for driving hydraulic pumps with an elastic coupling.

The chassis of the DZ 98 motor grader with a 1x3x3 drive is installed on three drive axles. The front axle is controlled by the steering wheel. The main gear is represented by a conical 1-stage unit. The chassis does not include differentials, and the axle shafts are mounted in an unloaded type. The brake units are multi-disc, they operate in oil, and are made of metal and ceramics. To increase efficiency and traction characteristics, the use of cylindrical 1-stage side gearboxes is provided.

The suspensions of a pair of axles are made with balancers in the form of rods, and the counterweight is a hinge on the front axle. They are designed to pump in different directions. The “handbrake” is capable of holding the car on a base slope of up to 15 degrees.

The gearbox of the DZ 98 motor grader allows you to develop quite a high speed, and to completely stop it will take 15 m if you are moving at 30 km/h.

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Device and technical data

The machine is equipped with a steel frame that allows mounting of ripening equipment on the rear. The DZ-98 grader is equipped with V-shaped diesel engines from the Yaroslavl plant, the parameters of which differ depending on the type of gearbox used.

When using a 6-speed manual transmission, an 8-cylinder 240-horsepower naturally aspirated engine is installed. The modification with a 4-speed hydromechanical transmission is equipped with a 6-cylinder unit with a compressor developing a power of 230 hp. The gearbox of the pumping station drive is located on the gearbox housing. The supply of working fluid is 150-170 liters. The machines are equipped with a friction 2-disc clutch with a hydraulic drive and a driven shaft brake.

The DZ-98 vehicle is equipped with a transmission with all-wheel drive; torque is transmitted to the front axle by a driveshaft. The drive to the front axle is switched off using a lever installed in the operator's cab. The drive axles are equipped with a conical main pair without a differential and additional onboard planetary gears. Torque distribution to the rear axles is carried out by a 1-stage gearbox.

The front axle beam is mounted on the frame through a hinge that allows the unit to swing in the transverse direction. The steering is equipped with a hydraulic servo drive mechanism. The rear bogie is mounted on a balancer suspension, which includes leaf springs and reaction bars. The grader uses multi-disc brakes placed in an oil bath. The units are driven by a high-pressure pneumatic circuit. Additionally, a disk mechanism is installed that is activated during parking.

Dimensions of motor grader DZ-98 and technical characteristics:

• length - 9777 mm;
• the distance between the front axle and the center of the balancer is 6000 mm;
• rear bogie base - 1620 mm;
• height - 4260 mm;
• width (average blade) - 4100 mm;
• fuel tank capacity - 345 l;
• weight without additional equipment - 19680 kg;
• travel speed (depending on the type of gearbox) - 31.8-46.7 km/h.

The driver's workplace and controls are located in an all-metal cabin. There are information signs on the instrument panel describing the operating modes of the machine. The seat is mounted on a sprung support and is adjustable depending on the height and weight of the operator. The steering column is adjustable in terms of tilt and reach. The basic equipment includes a heater connected to the engine cooling system.

The cabin is equipped with quick-release fasteners, which allows you to transport equipment in a van. On DZ-98V motor graders it is possible to install an air conditioning system.

The working equipment includes:

• a snow plow with a width of 3200 mm and capable of removing a layer of freshly fallen precipitation up to 500 mm;
• frontal 5-tooth ripper providing a depth of 230 mm;
• rear ripper designed to develop soil to a depth of up to 200 mm;
• bulldozer blade 3220 mm wide;
• track layer providing a cleared strip width of up to 3250 mm;
• grader type blade with adjustable installation angle.

Working and replacement equipment

The set of actuators includes:

• rotary bulldozer blade;
• grader blade, side;
• loosening device;
• pick device;
• devices for working with snow;
• track laying mechanisms.

The technical characteristics of the attachments are as follows:

Working equipment

In addition to standard equipment, additional equipment can be installed. The manufacturer has provided various options for use in many fields of activity, which expands the scope of the machine and its efficiency. To loosen the soil, a ripper-pick is mounted at the rear of the equipment. An auxiliary wing is mounted on the grader blade, which is necessary when clearing the road of snow, and cleaning behind fences is carried out using an auxiliary side blade.

Additional working bodies are:

• ripper;
• bulldozer blade;
• equipment for track construction;
• snow dump;
• pickaxe

The technical characteristics of the DZ 98 grader when working with a track-laying body are presented:

The bulldozer blade allows you to clear a strip 3.2 m wide, capturing 2.57 m3 of material. The height of the organ is 0.97 m, the cutting angle is 55 degrees, and the digging depth is 0.11 m.

The ripper equipment is equipped with five teeth, it loosens to a depth of 0.23 m and covers a surface of 1.8 m.

Control of the DZ 98 motor grader with a grader blade is standard. The blade is equipped with a knife mounted 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.

Main characteristics of the grader when installing a standard working element:

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Operator's cabin

The cabin design resembles a hexagon, which guarantees a large viewing angle and safety. The top of the unit can be put on and taken off at any time, allowing for easy transport on a low loader trailer or 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 during the hot season.

The excellent technical characteristics of the DZ 98 grader are maintained when working in any climate. To optimize the operation of the grader, installation of auxiliary units and functions is provided. Southern areas will require air conditioning, while northern areas will require pre-heaters, additional interior insulation and a high-output heating system.

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Unit actuators

The main working part of a motor grader is a blade with a blade, which is fixed to the traction frame. It has the ability to rotate in a vertical and horizontal plane, move up and down. The dumping device can be moved to the side.

Mounted track-laying mechanisms make the machine multifunctional. This:

Design of motor grader DZ-98

• soil loosener;
• a pick device for crushing dense soils and previous road surfaces;
• bulldozer blade;
• side grader blade.

In winter, a special wing is installed on the dump, which throws snow to the side of the road. Using the additional side wing, you can remove drifts behind the fence. The frontal sheet moves the snow to the side at low speed, and at high speed it scatters it over a dozen meters. As a result of such cleaning, a snow bank does not form along the road.

Bulldozer equipment is used to fill holes and make excavations. Soils of categories 1-2 are moved without preparation, soils 3-4 and frozen are pre-loosened.

Related video: Motor grader DZ-98 in operation

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Application benefits

• Selecting a gearbox with a friction clutch operating mode.
• Optional installation of transmission hydromechanical units is possible.
• All-wheel drive axles ensures the use of the machine on soft ground, high traction on the moldboard, and preservation of direction when forming road ditches.
• The part-rotating blade allows adjustment of the unit's traction force, adjusting the amount of material capture across the width without changing the vertical cutting parameter. Due to this, the number of passes is reduced, and 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, increasing driving comfort.

Options that expand the capabilities of the machine

• The LS hydraulic system regulates the operation of hydraulic pumps based on load, ensuring fuel savings.
• Manipulation of working parts and maneuvering is carried out using joysticks.
• Main blade damper hydraulic system.
• Possibility of transition to the “floating” position of the blade.
• Powerful hydraulic steering pump and two-cylinder steering control.
• Automatic leveling by LEICA (2D and 3D).
• GLONASS satellite navigation device.
• Equipment of hinge devices with LINCOLN auto-lubrication units.
• Rear sphere video camera.
• DYNOSET hydraulic tool canopy module.
• Working lighting on 4 sides.
• Heated fuel filter.

What features and technical characteristics does the GS-14.02 motor grader have, you will find out in our article.

In this article you will be interested to know the technical characteristics of another motor grader - DZ-122.