Motor grader DZ 98. Design, overall dimensions and fuel consumption

Technical characteristics of the motor grader DZ-98

The progenitor of special equipment for leveling and other work of the DZ-98 motor grader is the Chelyabinsk ChSDM plant, which began producing this class of units in 1978. Over the years of the plant’s existence, several stages of modernization have passed, and today this is one of the few operating types of motor grader equipment, where the manufacturer of the DZ-98 grader became a new one, which included the Chelyabinsk ChSDM plant.

The GS-14.02 motor grader has a special design, which provides it with some advantages in comparison with other models. It is widely used in road construction and more. A large number of configuration options makes it easy to vary the functionality and cost of the device. Therefore, it deserves a detailed consideration and overview of the functionality.

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Design of the GS-14.02 motor grader

A machine of this class is used for road surface planning and profiling. Additionally, it is used to create embankments from gravel, various types of soil and crushed stone by leveling and moving them. In winter, it is allowed to use the GS-14.02 motor grader to clear road transport routes from precipitation and formed ice. This is possible due to the wide range of operating temperatures and adaptation to work in tropical and temperate latitudes.

A wide grip on the grader blade is achieved through the use of an articulated frame and rotary grader and bulldozer blades. This design also allows the machine to be used for profiling in the opposite direction of movement due to the reverse gear. The blade is located directly between the front and rear axles and is fully rotatable.

The design feature of the GS-14.02 motor grader is that it is equipped with removable equipment. Therefore, its bulldozer blade can be replaced with a ripper-picker, and it, in turn, can be replaced with a ripper-scarifier. The power of the equipment directly depends on the engine used, but due to the fact that there are several design options, each modification should be considered separately, based on specifications.

The GS-14.02 motor grader is adapted for work in high mountain areas. This is largely possible thanks to the transmission used. It's made in Germany here. The brake system is dual-circuit hydraulic with a backup power source. It is complemented by a parking brake with a gear shift lock. The hydraulics are equipped with a constant volume pump. It includes 6 hydraulic boosters for the main equipment and four electrical modules for additional equipment, as well as hydraulic locks for the circuits.

The operator's work is facilitated by the automatic blade control system. For this purpose, the design provides a number of sensors and balancers, also containing sensors.

What does it come with?

Attachments have been developed for the motor grader , which allows you to perform work of varying degrees of complexity. It is installed on the head of the main frame and includes:

• equipment for loosening soils and road surfaces;
• equipment for laying tracks;
• equipment for bulldozer work;
• equipment for snow removal;
• picker operator

Equipment for laying tracks includes a blade and two wings, which are attached to it on hinges. They are raised and lowered using hydraulic cylinders. Depending on the degree of exit of the cylinder rod, the wings are in a track-laying or bulldozer state. They can have a right or left grader position. Equipment for loosening soils includes a ripper with a suspension. The ripper has a beam shape with five teeth. A blade is used for snow removal work. Cone-shaped makes it possible to move snow to one side at low speed. When driving speed increases, the snow is thrown to the side up to 20 meters, which guarantees the absence of snow accumulations along the road. Bulldozer equipment is used to move rocks and fill ditches. It includes a blade, push frame suspension and hydraulic cylinders. To work with frozen soil and category 3-4 soils, they are loosened. The picker is used for crushing category 4 soils, destroying waste road surfaces and frozen soil.

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Technical characteristics of the motor grader GS-14.02

• Class - 140;
• Operating weight, kg - 13,500;
• Engines D442 / D260 / YaMZ-236 / Cummins 6VT5.9-S135 / Cummins 6VTA-S165;
• Transmission - mechanical;
• Travel speed GS-14.02, km/h: 4.1-34.2;
• Number of motor grader gears: forward - 6; back – 2;
• The wheel formula of the motor grader is 1x2x3;
• Overall dimensions GS-14.02, mm 8820x2500x3475;
• Tires: 14.00-20.00;
• Grader blade: Overall dimensions, mm - 3740x620x250;
• Removal, mm - 800;
• Slope cleaning angle, degrees - 90.

The 2022 ZTM package includes:

· Reinforced frame with a new square section

· Powerful and reliable YaMZ-238NDZ engine with cooling system

· Reliable and efficient mechanical transmission, new type gearbox

· Full turning circle and multifunctional grader blade + dozer blade (with blades)

· Spacious classic tetrahedral cabin: pilot seat, power steering, motion control system and working parts, lighting, reliable electronics and sensors, Triplex double-glazed windows, rear-view mirrors, reverse signal, fire extinguisher, first aid kit, etc.)

Device and technical characteristics

The machine has a classic layout, which includes:

1. Main frame. It is welded, bent in a vertical plane. The tail section has a rectangular shape; carries the engine on top, rests from below on the rear axle of the travel mechanism connected to it. The front part is a convex spinal beam; equipped with a stand with lugs, used for connection to the front axle and for hanging additional equipment. In the middle of the span there are brackets to which hydraulic cylinders are attached, lowering/raising the traction frame and, through it, the blade.
2. A traction frame located under the main frame, attached through a hinge at the front to a stand with lugs. At the rear, it is connected to the eyes of the hydraulic cylinders, which can be used to lower/raise. At the bottom there is a turning circle to which the blade is attached.
3. Running equipment. For the DZ-180A motor grader it consists of 3 axles (one front steered, 2 rear driven) and pneumatic wheels installed on them - front rotary ones.
4. Diesel power unit mounted above the rear axles. It is connected to a multi-speed gearbox and transfer case, through which it transmits rotation to the drive wheels.
5. The blade, which is the working equipment of the machine. Its location is approximately the middle of the main frame.
6. Additional equipment, of which there are 2 dozen types: picker, snow plow, slope, bulldozer blade, blade extension, grader-elevator.
7. Control system located in the cockpit.

Hydraulic system

Control of attachments, clutch, as well as maneuvering and movement of the grader is carried out using an advanced hydraulic system with a total capacity of 120 liters (as standard). Hydraulic cylinders are responsible for moving the frame elements in a vertical plane, and with the help of a hydraulic motor (can be installed optionally) the rotating mechanism of the blade operates.

Powerful hydraulic cylinders with a rod diameter of 100-160 mm are used to control all the main components of the heavyweight. The cylinders used here are:

• power steering;
• side blade;
• movement of the blade in the vertical plane;
• movement of the blade in the horizontal plane;
• front blade control;
• frame extension, etc.

Different modifications of the DZ-98 can use excellent components for the hydraulic system. Since some parts are no longer produced in domestic factories, they are delivered from China.

Advantages of the motor grader DZ-298-1

The external front axle of this road construction equipment provides maximum grip and higher traction. This motor grader is characterized by increased directional stability, maneuverability, high maneuverability in hard-to-reach places, and optimal fuel consumption.

The part-rotary shaft is responsible for regulating the traction force when changing the working width of the blade. As a result, the number of passes is reduced, and the quality of leveling and planning of construction sites and road surfaces increases.

The price of the DZ-298-1 motor grader is determined by the modification and quantity of installed climate, navigation and heating equipment. Our catalog will guide you through the differences between different models of the Russian manufacturer of road construction equipment Dormash.

You can buy a motor grader DZ-298-1 (new) by leaving a preliminary application on our website or by calling our manager. Our company offers for sale motor graders that have undergone mandatory pre-sale training and have a high service life.

From us you can purchase engine units and parts, grader blades, and pickaxes. Any parts are available from the manufacturer.

Transmission

The all-wheel drive transmission provides the DZ-98 with high maneuverability in the most difficult conditions. Torque is transmitted to all six wheels using final drives and unloaded axle shafts. To make using the grader more economical, you can temporarily disable the front axle.

The standard equipment of DZ 98 includes:

• 6-speed manual transmission.
• Dry clutch (double disc).
• Cardan shafts.
• Transfer gearbox equipped with a parking brake.

Thus, despite its overall dimensions and relatively large weight (approx. 20 tons), the grader is capable of reaching speeds of up to 41 km/h. It is possible to install a gearbox different from the standard one with an operating mode through friction clutches.

Motor grader DZ-98: technical characteristics

It is customary to start a review of technical data with the engine. DZ-98 is equipped with the popular YaMZ-238NDZ for Russian heavy equipment. It should be noted that the machine is available in two modifications, one of which is equipped with a Cummins engine. Both engines are diesel.

YaMZ-238, primarily used as a power unit, belongs to the Euro-1 environmental class and has a long service life. The engine power is 240 hp/173 kW. The nominal crankshaft speed is 1700 rpm. The engine is started by a starter.

The Cummins M-11C265 has 275 hp/202 kW. Rated speed - 1700 rpm. Ecological class Euro-1. The engine is started using a starter. The specific fuel consumption of the DZ-98 motor grader at a minimum is 220 g/kW*h (162 g/hp*h).

Transmission and chassis

The motor grader is equipped with a six-speed manual gearbox (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 use. In difficult conditions, a manual transmission is preferable, as it provides a certain reserve of power and more possibilities for the equipment. The maximum speed is 41 km/h forward and 47 km/h reverse.

The gearbox is equipped with drive to all four wheels and is complemented by a front axle disconnect mechanism. The transmission system is formed by:

• single-row hydraulic pump drive gearbox with an elastic coupling;
• dry double-disc permanently closed clutch with hydraulically assisted drive and driven shaft brake;
• transfer case for driving the rear and middle axles with a hand brake;
• band-type hand brake;
• intermediate cardan transmissions to axles.

The DZ-98 motor grader is equipped with a 1x3x3 wheel arrangement and three drive axles. The front axle is steerable and is subject to the steering mechanism. The main gear is a single-stage bevel gear. The design does not provide differentials. Fully balanced axle shafts, multi-disc brakes operating in an oil bath and made of cermets, and cylindrical single-stage side axle gearboxes together provide amazing maneuverability and power to the entire chassis system.

The suspension of the middle and rear axles is made with balancers in the form of reaction rods, which ensure vertical pumping of the axles. In contrast, the front axle has a hinged device that ensures its pumping in the transverse plane. This way the machine becomes stable even under heavy loads. The parking brake is capable of holding equipment at an angle of 15 degrees.

Working equipment

The DZ-98 motor grader has a wide selection of working equipment. The customer has access to track-laying, bulldozer and loosening equipment, as well as a grader blade as standard. Aggregation occurs with a front or rear hydraulic linkage system.

The working width of the blade with track-laying equipment is 3400 mm, the height is 950 mm. The soil cutting angle is 48 degrees. The volume of the drawing prism in the bulldozer position is 3 m3. Lowering the equipment below the supporting surface is at least 200 mm.

Bulldozer equipment has a blade width of at least 3200 mm. The volume of the drawing prism is 2.57 m3. The height of the blade is 970 mm. The main cutting angle is 55 degrees, lowering below the supporting 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 the DZ-98 is the grader blade. The length of the equipment is at least 4200 mm, the height with knives is at least 700 mm. A standard blade can operate at an angle from 30 to 70 degrees. The slope cleaning angle under standard conditions can reach 90 degrees. The blade extends laterally by at least 1050 mm relative to the side frame. The minimum lowering of grader equipment below the supporting surface is 500 mm.

Chassis

Front suspension is articulated type. Due to its design features, it provides the bridge with freedom in the transverse plane. The rear suspension is made according to the balancing design. The bridges move in a vertical plane, held in the desired position by means of reaction rods. This device allows you to successfully navigate over very rough terrain, although it does not add much comfort in the cabin.

The steering is hydraulic, with front wheel drive. Multi-disc brakes made of cermet operating in an oil bath allow you to confidently control a heavy machine, the operating weight of which reaches almost 20 tons.

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Overall dimensions of motor grader DZ-98

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.

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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Application of motor grader DZ-98V

Heavy graders are used for work in difficult road conditions, or for large-scale operations with soil. Most often, the DZ 98 grader is used to:

• Loosen the earth or old road surface (another name for the operation is picking);
• Construct and carry out major repairs of gravel or dirt roads. The stability of such special equipment as the DZ 98 grader plays a big role when performing such labor tasks;
• Move the loosened soil into the embankment;
• Arrange a trough in the ground located under the base of the road;
• Level the bulk soil and plan the surface;
• Clear roads and various large areas from snow using the functional power of the DZ-98;
• Move materials with stabilizing additives during the mixing process. on sections of the road.

ENGINE

The main ones for the DZ 98 grader are two diesel power plants: YaMZ-238ND2 and Cummins M-11C265.

The basic version is equipped with a YaMZ-238ND2 unit with turbocharging and a starting system using a starter.

Parameters of the YaMZ-238ND2 engine:

• power – 173 (240) kW (hp);
• estimated crankshaft rotation speed – 1700 rpm;
• number of cylinders – 8;
• environmental class - Euro-1.

The Cummins M-11C265 engine is more reliable and has a similar design.

Parameters of the Cummins M-11C265 unit:

• power – 202 (275) kW (hp);
• estimated crankshaft rotation speed – 1700 rpm;
• specific fuel consumption – 220 (162) g/kW per hour (g/hp per hour);
• environmental class - Euro-1.

The motor grader is equipped with a fuel tank with a capacity of 485 liters.

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.

Control Features

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 the height of the operator. 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.

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:

Options that expand the capabilities of the machine

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

Modifications

ChSDM DZ 98 has many modifications designed for specific areas of use. The main distinguishing features are the working bodies; various units and equipment (more advanced and efficient) can also be installed.

Depending on the climate in which the equipment will operate, the machine versions differ:

• normal – for the temperature range -45/+45 degrees;
• tropical - for wet and dry climates;
• quarry - focused on difficult working conditions, optionally equipped with a pair of hydraulic cylinders that simplify machine control, and 20.5-25 tires.

The 98B model can be equipped with any motor up to 220 kW, a front driven axle, adjustable steering wheel and the ability to control the blade under load. Depending on the scope of application, various working bodies are installed.

According to the marking of Terex DZ 98, its features are determined:

• B.00002 – with a full-rotating grader blade;
• V.00012 – with a bulldozer blade;
• V.00022 – with ripper;
• B.00072 – with all possible additional organs.

Models 00102, 00112, 00122, 00142, 00152, 00172 differ in units and components, but are equipped with a standard organ. Modifications 62012, 62022, 62072 are equipped with a hydromechanical gearbox and are used as a grader, bulldozer and ripper, respectively. The 621XX series has a similar transmission, part-rotary blade and various units and systems.

The domestic brake system DZ 98 of a motor grader, YaMZ, Deutz, Cummins engines, a ZF mechanical or hydromechanical gearbox, and various attachments make it possible to assemble the optimal machine for the required tasks.

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