Komatsu CSS 2022 Parts Book Viewer, workshop and operators manuals Catalog of spare parts repair manuals and operating instructions for loaders, excavators, engines and much more

The Komatsu WB93R 5EO backhoe loader is a modern development of the manufacturer. Not only the model itself goes on sale, but also its modifications with improved characteristics and higher productivity. The WB93R excavator features an S-shaped boom, improved design and a comfortable cab. When developing the model, the designers took into account the wishes of the operators in order to make construction equipment more advanced, convenient and provide it with good performance parameters.

Backhoe loader Komatsu WB93R 5EO

Navigation

• Characteristics and advantages
• Technical characteristics and dimensions
• Fuel consumption
• Motor
• Device
• Chassis
• Hydraulic system
• Operator's compartment
• Performance and maintenance
• Mounted units
• Cost of new and used
• Analogs

Thanks to the large force on the bucket, as well as significant lifting capacity, high work efficiency is achieved. Most often, the model is used in excavation work, processing, loading and unloading materials. This can be rock, soil, sand, crushed stone, metal shavings, coal, etc. The excavator easily builds embankments and shafts, transports large volumes of soil using a standard working tool, carries out excavations and leveling of territories.

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Characteristics and advantages

The ability to move at high speed ensures quick transportation of equipment to the place of work. In this case, it is advisable to transport the Komatsu WB93R 5EO on a platform if the work site is located more than 30 km from where the loader is parked. The machine is characterized by excellent maneuverability and high load capacity. It optimally combines the qualities of an excavator and loading and unloading special equipment. As additional equipment, grippers for loading pallets, coarse and fibrous materials or hydraulic equipment can be installed.

Excavator Komatsu WB93R 5EO. Photo

Features of the model include the installation of a telescopic handle, thanks to which the digging depth is increased to 6 m. With its help, materials are loaded into machines with high sides, fluff, and it also helps to increase the distance for loading soil during excavation work.

In addition, the distinctive features of special equipment are:

• modern innovative design. The developers carefully thought out the design of the excavator, positioned the hydraulic hoses in such a way as to prevent them from being damaged by mechanical stress, and provided for the installation of an S-shaped boom mechanism. Thanks to such solutions, an increase in breakout force, unloading performance, and machine efficiency is achieved;
• excellent performance and high technical performance. They are provided by installing an axial piston pump with adjustable power, a closed center hydraulic system, and a joystick control system with proportional pressure. This is also positively influenced by the ability to select the operating mode of the equipment;
• versatility and multifunctionality. The machine has several modifications, equipped with pallet forks and a system for quickly replacing working equipment installed in front and behind the machine. Optionally, the boom mechanism can be hydraulically shifted.

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Design of main units and components

1. Rigid welded frame made of steel profile.
2. The power unit is an atmospheric or turbocharged four-stroke diesel engine with 4 working cylinders manufactured by Komatsu. Closed liquid cooling system. Starting with electric starter. The engine is reliable, economical, and meets environmental requirements.
3. The transmission on the first models was installed with mechanical torque transmission kinematics. Modern cars are equipped as standard with a torque converter and an automatic transmission - modes are switched under load without interrupting the flow of power, manual control of the box is allowed (push-button switch).
4. Axles, front and rear, driven with planetary gear units in the hubs of pneumatic wheels. Differentials are lockable. The front axle balancer provides +/- 16° swing.
5. Steering with hydrostatic drive, operates in three modes - controlled by: - ​​wheels of one axle; – wheels on both axles in the same direction; – “crab motion” on both axes.

6. Multi-disc brakes operate in oil and are mounted in the wheel gear housing. The rear wheels are braked separately, each with its own pedal. The 4 wheel brakes are applied simultaneously by pressing both pedals.
7. Hydraulic system of closed-type backhoe loaders with measurement of load parameters. The pumping unit is axial piston with a head pressure of 250 bar and a capacity of 250 l/min.
8. A single composition is used as a lubricating oil for the engine and axle gearboxes, as well as fluid for the hydraulic system - engine oil.
9. Executive equipment: – the boom, the system of levers and hydraulic cylinders of the front bucket provide sufficient lifting capacity and breaking force, movement of the bucket parallel to the ground level, normal visibility in the work area; – The S-shaped excavator boom is equipped with a standard-length handle, an extended handle, and a handle with a telescopic extension mechanism.

Technical characteristics and dimensions

The main technical characteristics of the Komatsu WB93R 5EO include:

Dimensions of Komatsu WB93R-5E0 standard assembly:

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Motor

The Komatsu WB93R 5EO backhoe loader is equipped with a 74 kW or 99 horsepower power unit. The four-stroke four-cylinder (10.4 cm diameter) model SAA4D104E-1 with a volume of 3.98 liters is produced at the same plant as the equipment. It is equipped with a liquid cooling system and turbocharged supercharging, the cylinders in it are located vertically. The nominal rotation speed is 2200 rpm per minute of operation. The power plant complies with European Stage IIIA emission standards, which makes it environmentally friendly. The engine is also equipped with an improved combustion chamber with a direct fuel mixture supply system. The maximum torque produced by the unit is 420 Nm.

Turbocharging has a specific design. The air entering the cooling system passes through an additional temperature reduction system before being supplied to the engine. An electric starter is provided to start the unit. The power plant is equipped with an air preheating system, which guarantees quick engine starting in the cold season or in difficult climatic conditions. A filter with a protection element is installed here.

The transmission has a mechanical control system, it is fully synchronized, equipped with a Power Shuttle switch. The gearbox allows the loader to move in four forward and four reverse speeds and provides the ability to shift under load.

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Komatsu WB-93R-5EO

The youngest in the family of this type of equipment produced by a well-known Japanese manufacturer is the Komatsu WB-93R-5EO backhoe loader. The technical characteristics of the machine comply with strict European standards. The components and assemblies used in the design provide the WB-93R-5EO model with high efficiency. Its parameters look like this:

• Engine modification Komatsu SAA4D104E-1. The four-cylinder power unit runs on diesel fuel and has a displacement of 4485 cc. cm develops a maximum power of 100.6 hp. With. An effective liquid cooling system reliably protects the motor from overheating in difficult operating conditions. Taking into account the operation of equipment in regions with cold climates, the starting system is equipped with a device for preheating the air entering the intake manifold.
• The operating weight of the machine according to the standard is 8070 kg, but may vary depending on the replacement equipment installed on it.
• The SyncroSystem CLSS (closed center) hydraulic system has two operating modes: economical and maximum power. It provides precise control of the working parts of the backhoe loader, regardless of whether it is static or in motion. A working pressure of 250 bar is provided by axial piston pumps.
• The steering system is hydrostatic. It turns the front wheels and provides a turning radius of 5450 mm on the outer corner of the front bucket without using brakes. If you apply the brakes, the turning radius is reduced to 4950 mm.
• The Power Shuttle transmission has four gear stages and, depending on the selected mode, transmits torque to 2 or 4 wheels. The gear shift system is electro-hydraulic. Reinforced axles can withstand high dynamic loads: the front axle is 8500 dN, and the rear axle is 7600 dN.
• The front loading bucket of the standard type with a width of 2320 mm has a capacity of 1.03 cubic meters. meters. Its load capacity is: 5300 kg at ground level and 3900 kg at a maximum height of 4290 mm. Breakout force at the leading edge is 6500 kg.
• The backhoe is mounted on an S-shaped boom, which is mounted offset, left or right, relative to the longitudinal axis of the Komatsu WB-93R-5EO backhoe loader. Maximum excavation depth: 4540 mm with conventional boom and 5650 mm with telescopic boom. The load is lifted to a height of 5800 and 6405 mm, respectively.
• The steel frame, made of box-section profiles, has high strength and is able to withstand significant loads when the machine operates in various conditions.
• The distance between the wheel axles is 2175 mm and the ground clearance is 430 mm, designed for driving on rough terrain.
• The Komtrax monitoring system allows you to receive real-time information about where equipment is working, how much time it takes to complete assigned tasks and, importantly, to learn about cases of unauthorized use.

The technical solutions used in the design have proven themselves to be the best. They provide the machine with a long service life, good mobility on work sites and enviable fuel efficiency, thanks to which operating costs are significantly reduced.

Device

The supporting structure of the Komatsu WB93R-5EO is made of a box profile, the cross-section has increased strength and reliability, and has good torque resistance. Loading and unloading operations and transportation of materials are carried out quickly and accurately, because The standard package includes the installation of a bucket leveling system. This guarantees its horizontal position during work operations. The bucket arm is designed in such a way as to provide a large viewing angle from the cab and work productivity. When working with a backhoe bucket, high efficiency is also noted.

The machine developers have provided many systems that increase work safety:

• installation of an electro-hydraulic safety stopper for boom equipment on both working bodies of the base assembly. Optionally, you can install safety valves on additional equipment;
• an optional battery disconnect element is installed;
• sensors under the driver's seat.

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Transmission resource

Modern Komatsu loaders use an electro-hydraulic transmission system that allows you to switch between two-wheel drive and four-wheel drive. The gearbox is operated via a controlled reverse switch (PowerShuttle) and a torque converter.

A hydrostatic transmission is a complex device, but much more reliable than a pump. In difficult conditions, a hydromechanical loader works without problems, while a hydrostatic one tends to break down quickly. For example, when working on a surface consisting of hot slag, the travel motor can ignite along with flammable liquids passing through it. And when used in cold conditions, a hydromechanical excavator requires less time to warm up and prepare for operation, and can easily withstand temporary stops.

Chassis

The Komatsu WB93R 5EO backhoe loader is equipped with axles with planetary gearboxes. The front axle can be rotated up to 20 degrees. A differential lock is installed on the rear axle; the function is activated via a button on the joystick lever. The disc brakes are in an oil bath and are controlled using separate pedals. To apply all-wheel braking, you must press both brake pedals. Front wheels with hydrostatic control and feedback.

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Design features of special equipment

The areas of application of the equipment are expanded by installing a shifting digging axis on the loader. As a result, overall dimensions are significantly reduced, facilitating transportation. The turning radius is reduced, making it possible to carry out work at close distances from buildings. The boom, which rotates around its axis, helps reduce overall dimensions and dig soil even at an angle relative to the excavator.

The Komatsu loader gearbox, equipped with the PowerShuttle switching function, makes it possible to use four forward and four rear speeds. The WB93 excavator is equipped with a manual transmission with synchronized shifting, the WB97 is equipped with an automatic transmission. As standard, the package includes a joystick for servo control of the front bucket, operating in the basic mode of automatic gear selection.

There is also a downshift option, with which you can go from second to first gear in one motion.

Hydraulic system

The Komatsu WB93R 5EO excavator is equipped with a modern SyncroSystem hydraulic system, which guarantees precise control during three-dimensional movement. Depending on the type of work, the driver sets the required mode. There are two of these modes: economy mode and maximum power mode. In addition, the hydraulic system is equipped with a speed boost function, which allows you to quickly move on public roads and cover distances between work sites in the shortest possible time.

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Operator's compartment

The advantages of the Komatsu WB93R-5EO cab include:

• installation of FOPS and ROPS protection systems, ensuring safety when objects fall from a height and in the event of an excessive load being lifted, and, as a consequence, the risk of equipment tipping over;
• reduced noise and vibration levels in the cabin;
• large viewing angle of the site;
• the ability to set the required microclimate in the cabin;
• ergonomic working parts that allow you to perform work operations accurately and quickly;
• comfort.

There are two doors to enter the cabin. The ability to work in rainy weather is ensured by windshield wipers, and ventilation is provided by installing an openable rear window. The operator's seat is adjustable, purified air is supplied to the cabin, and the dashboard displays all the necessary information about the condition of the equipment.

The standard cab assembly also includes storage compartments, including lockable ones, a 12V electrical outlet, etc. All this makes the driver’s work convenient and reduces the load during the work shift. The controls are characterized by a direct relationship between the force of pressing the loading bucket control lever and its movement. The same principle of operation of excavator equipment. This guarantees not only the accuracy of the work, but also high productivity, as well as a reduction in work cycle time.

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Features and Benefits

All models of Komatsu wheeled backhoe loaders have a front-loading double-jaw bucket and excavator equipment on the rear suspension with a curved boom in the form of a backhoe and the possibility of transverse displacement from the longitudinal axis.

The hydraulic system of the drive of the working equipment has two modes: “high power” - to increase the speed of its operation and “economical” - to reduce fuel consumption.

Excavators are equipped with powerful turbocharged diesel engines and an 8-speed synchronized gearbox.

The driver's cabin is equipped with air conditioning and heater, modern control panels, and an air-suspended driver's seat. The cabin has wide glazing for all-round visibility, protection against falling objects and rollovers.

There are more than 30 modifications in the Komatsu backhoe loader model range, which can be divided into two categories:

1. Models with the index “S”, having two pairs of wheels with the same diameter.
2. Models with the index “R”, having different diameters of the front and rear wheels.

Excavators with the “S” index have steering on all four wheels.

They have several motion control modes:

• standard – for two-wheel steering;
• working – for symmetrical control of 4 wheels;
• lateral movement ("crab" movement) - to control 4 wheels in a confined space.

Performance and maintenance

Before purchasing a Komatsu WB93R 5EO, you need to evaluate all its advantages. These include simplicity and ease of car maintenance. A hinged hood provides access to the engine compartment, allowing for quick, quality service and inspection. The hydraulic hose connection elements have a sealed joint surface, which increases the reliability and durability of the hydraulic system and ensures high speed of service work. The battery is installed on the side of the loader, and a toolbox is also attached here.

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Mounted units

The price of the Komatsu WB93R 5EO backhoe loader depends on the attachments supplied with the machine. A backhoe bucket with a telescopic handle and a jaw front loading bucket are installed as standard. The hydraulic line for connecting additional working bodies has good performance and wear resistance.

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Komatsu special equipment

The Japanese company Komatsu Limited, part of the industrial and financial corporation Komatsu Group, offers on the special equipment market, among other products, backhoe loaders manufactured using advanced innovative technologies. The machines are productive, reliable, economical, and meet the requirements of environmental standards.

How the Komatsu backhoe loader works and where it is used

In the front part of the two-axle platform, a front loader bucket boom attachment unit is installed on pneumatic wheels, and in the rear part there is a column of the excavator bucket boom mechanism. The platform area houses the power plant, transmission, hydraulic system and its lines, and control cabin.

Backhoe loader design

1- hydraulic cylinder for controlling the front bucket; 2 – engine hood; 3 – exhaust pipe; 4 – excavator boom; 5 – excavator boom handle; 6 – connecting rod for bucket control; 7 – excavator bucket; 8 – boom rotation and displacement unit; 9 – rear axle; 10 – transmission units; 11 – hydraulic cylinder of the front bucket boom; 12 – front axle; 13 – front loading bucket boom.

Scope of application:

• Komatsu backhoe loaders are used in urban utilities and agriculture, in construction for:
• excavation and leveling operations;
• loading, unloading, transport operations;
• towing trailers with cargo, etc.

The functions of the machine are significantly expanded by the use of attachments and replaceable equipment (hydraulic hammer, hydraulic shears, milling cutter, forklift and grab loader, drilling rig, trailers with various unloading methods, etc.)