TEREX WX200

The TEREX WX200 excavator is designed to perform large volumes of work during the construction and operation of roads, in the field of civil and industrial construction, in public utilities when laying utilities. The machine works reliably on soils up to category IV inclusive.

An intelligent computerized control system ensures coordinated operation of the engine and hydraulic system to optimize power requirements and save energy.

Economical engine (YaMZ 530 series) with electronic control complies with Tier 3 environmental standard

The excavator confidently overcomes off-road conditions due to a special travel mode and self-locking differentials in the axles.

The spacious and comfortable cabin with climate control promotes high operator performance and can significantly increase productivity and efficiency. The robust cab frame ensures operator safety.

Wheel Excavator TEREX W200

Intelligent control system TEREX WX200

The hydraulic system ensures the distribution of flow between the actuators, regardless of the loads placed on them. The flow division is carried out in proportion to the operator’s influence on the controls (joysticks). This guarantees high performance of the excavator due to the ability to combine an unlimited number of operations in the work cycle. The speed of movement of all mechanisms does not depend on changing loads on the working body. This allows you to move elements of working equipment along an optimal trajectory with minimal work cycle time.

Mode	Note
S Maximum speed	Maximum operating speed – maximum productivity
P Maximum power	Maximum force and speed
N Standard	Medium mode for general work
E Economical	Minimum fuel consumption
L Lightweight	50% power
D For fine work	Reduced maximum speed for greater accuracy
U Custom	Choice of engine speed at the discretion of the operator

The Autogas function allows you to save fuel during forced downtime. The engine returns to idle speed after 5 seconds. absence of hydraulic drive load and returns to the previously set speed when resuming operation. The "Increased digging force" function briefly increases the force by 10%. To do this, the active pressure in the hydraulic system increases from 330 to 360 bar.

Wheeled excavator TEREX W200

Typical breakdowns

We can highlight a number of the most typical problems and malfunctions of TEREX backhoe loaders:

1. Malfunctions of the hydraulic system are extremely common, since the hydraulic motor, hydraulic pump and hydraulic cylinders, which ensure the mobility of the backhoe loader bucket, experience the heaviest loads during operation.
Common breakdowns are:
wear of the piston seal;

complete depletion of the inner surface of the liner;

bent rod;
damage to threads and leakage through seals in running areas.

If repairs of moderate complexity are necessary, then worn parts are replaced, and if major repairs are required in the hydraulic system, the cylinder is replaced.

2. Malfunctions in valves caused by incorrect adjustment of the gas distribution system. To avoid such troubles, you should constantly monitor the operating temperature of the valves.

provides a full range of services for servicing Terex equipment

3. Breakage of fingers on the backhoe loader bucket due to excessive load when misaligned. Initially, backlashes appear, and their consequence is the breakage of the fingers. When frequently changing the bucket to another type of working equipment, you should not forget about periodically replacing the pins.

4.Cracking and rupture of the high pressure hose shell due to increased pressure in the hydraulic system. To avoid this you need:

systematically check the safety valve settings;

use the working fluid recommended for the equipment by its manufacturer and fully compatible with the hose material;

If any defects appear in the sleeve, it must be urgently replaced.

5.Premature wear of injectors is the biggest problem leading to major repairs, which occurs when using low-quality or out-of-season fuel. As a result, the high-pressure fuel pump may break, and this is a repair with significant material costs.

6. Malfunctions in the chassis, for example, breakdown of rollers, sprockets, chains and idlers. In order to avoid them, diagnostics should be carried out in a timely manner using modern diagnostic equipment, which is only possible in a service center.

7.A drop in battery capacity is one of the common problems that is a consequence of the negligent attitude of backhoe loader operators to battery operation. In an attempt to save fuel, operators run the engine for short periods of time many times per shift, rapidly discharging the battery, which in this situation does not have the necessary time to recharge. It should be taken into account that the capacity of any battery decreases by 1%, starting from +20°C, when the ambient temperature decreases by 1°C. That is, at -20°C, the battery capacity drops by 40% of the nominal value.

The given statistics of problems and malfunctions of TEREX backhoe loaders is not complete, representing only the most typical breakdowns.

Pneumatic travel

The box-shaped pneumatic wheel frame is highly durable. It copes well with increased operational loads on torsion and bending. The front part of the frame is made in the form of a flange for the possibility of changing the design of the machine: installing a front support - a blade or a second outrigger beam.

The axles are equipped with maintenance-free hydraulic disc brakes. Self-locking differentials provide increased off-road capability. Operating costs are reduced due to extended oil change intervals (2000 hours) and no need for bearing adjustments.

Compact gearbox with servo-controlled gear shifting and integrated disc parking brake. The durable steel guard reliably protects the gearbox and hydraulic drive.

RM-Terex (TVEX)

CJSC Tverskoy Excavator (since 2012, part of the joint venture LLC RM-Terex) offers a number of models of wheeled excavators. Firstly, these are machines of the generation that were produced even before the start of cooperation with Terex Corp. — EK-14 and EK-18. These simple machines are still in demand among Russian consumers. Optionally, the machines can be equipped with imported components, in particular, Bosch-Rexroth hydraulic equipment.

A mod was released in 2015. WX 200 is a high-performance earthmoving machine designed for the development of pits, trenches in soils of categories I-IV, loading and unloading of bulk materials, loosened rocks and frozen soils (with pieces no more than 200 mm in size). In this machine, insufficiently reliable and productive domestic components are replaced with imported ones: transmission and axles - ZF, hydraulic equipment - Bosch Rexroth. The intelligent control system allows you to choose from 7 operating modes of the excavator. The machine is equipped with a new comfortable cabin with an ergonomic operator’s workstation.

The machine is equipped with an independent liquid engine preheater and remains operational in the ambient temperature range from -40?C to +40?C.

In 2016, the production of multi-purpose earth-moving machines of the TVEX series with a range of operating ambient temperatures from -40? C to +40? C began. The main differences between the machines of the new series: a modern, highly ergonomic cabin with a volume of 2.7 m3 with air conditioning and a filter in the fresh air ventilation system, as well as a number of imported units. Bosch-Rexroth hydraulic equipment set: axial piston hydraulic pump, pneumatic accumulators, control units, steering metering pump, etc. Cooling of the working fluid is carried out by a Bondioli&Pavesi unit (Italy), a filter from the English company Parker. Hydromechanical 2-speed automatic transmission and axles with hydraulic disc brakes are from ZF. The Poclain superstructure's rotation mechanism allows for an unlimited rotation angle. Excavators move at a speed of 25 km/h.

For all excavators there is a large set of replaceable working equipment: digging buckets of various shapes and volumes, grabs, hydraulic shears, hydraulic hammer, ripper, etc.

Since the formation of the joint venture, Tver machines have been produced in Terex Corp. corporate colors. - white and black.

Model	Operating weight, kg	Engine power, kW	Bucket capacity, m3
EK-14	14200	90,0	0,5-0,8
EK-18	17300	90,0	0,65-1,0
WX-200	22300	146,0	1,0
TVEX-140W	14400	90,0	0,5-0,8
TVEX-180W	17600	90,0	0,65-1,0

Doosan
(Daewoo)
In 2005, Doosan acquired the Daewoo company, so now the entire range of Daewoo equipment is produced under the Doosan brand. Both Doosan -DX and S series of wheeled excavators entered the market quite a long time ago.

Doosan DX Wheeled Excavator Series

designed to perform a wide range of earthmoving and other works: digging quarries, pits, trenches, embankments, loading and unloading bulk materials, reloading loose rocks, frozen soils and other work operations in road, industrial, urban, rural, transport and landscape construction .

The operator's cabin provides comfortable working conditions and excellent all-round visibility; there are air conditioning and heated windows. The display shows information about the machine's condition and fuel consumption. The attachments are controlled by a joystick. The seat can be extended in 2 stages, and the position and angle of the seat cushion can be adjusted. The seat reclines comfortably. A seat heater is available as an option. The wide doorway makes it easy for the operator to enter the cab.

Thanks to the electronic control system, turbocharged engines have good fuel efficiency, in particular due to the function of automatically reducing idle speed after a preset time. Powerful forced-air air purifier removes more than 99% of dirt particles, extending filter replacement intervals. Thanks to the electric clutch, the rotation speed of the cooling fan is adjusted according to demand.

Thanks to the use of a hydraulic transmission, gear shifting is possible even after stopping the machine.

The electronic control of the new Posicon hydraulic system optimizes fuel consumption.

The boom shape is optimized through finite element design and ensures uniform load distribution throughout the structure. Increased strength of the handle is achieved through the use of cast elements and reinforcement around the protrusions. To increase service life and lubrication intervals up to 250 operating hours, the bushings of the boom, arm and bucket hinges are made of highly plasticized metal (cermet). This, combined with increased material thickness, provides increased durability and reliability by limiting component fatigue. The boom hold function prevents the boom from lowering on its own. With boom swing and a tight turning radius, excavators can work in tight spaces. The intensity of swinging of the working equipment during operation is reduced by shifting the center of gravity to the rear of the machine. To improve work productivity, the speed of raising and lowering the blade has been increased. The ground clearance of the vehicles is increased, the axles have large swing angles in the vertical plane, making the vehicle stable when driving on uneven surfaces. Optionally, axles from ZF are available with an increased width of 2.75 m, providing increased stability and lifting capacity of the machine at large boom radii. An overload alarm system is available as an option.

Machines weighing over 14 tons are equipped as standard with the CoreTMS telematics monitoring system, which transmits information to the central office via GPS/GLONASS or GSM.

Doosan S (Solar) Excavator Series

released even earlier than DX. The excavator cabins are equipped with an air-suspended seat and an air conditioning system with five operating modes. A heated seat system is available as an option. The transmission and working equipment are controlled by levers. The levers are equipped with electric buttons to control attachments (grabs, crushers, grippers, etc.).

Electronic control systems for machine components are connected via a CAN bus. The electronic system allows you to choose from two operating modes of the machine (“excavating” and “digging a trench”) and from two engine power modes (“standard” - 85% of power and “reinforced” - 100%). There is a function for automatically reducing engine idle speed and a self-diagnosis function.

Increased engine life with the most powerful, easy-to-maintain air cleaner in its class that removes more than 99% of dust. The highly efficient, high-performance hydraulic return filter, made of polymer fiber, removes 99.5% of foreign particles contained in hydraulic fluid and provides a significant increase in fluid change intervals.

Booms and bushings similar to the components of the DX series are used. The front axle has a large swing angle in the vertical plane and large steering angles. Disc-type service brakes are installed. Oil change intervals in axle housings have been increased to 2000 operating hours.

The outriggers can be mounted front and/or rear and are individually controlled for maximum operating stability. The blade can also be mounted front or rear.

Model	Operating weight, kg	Engine power, kW	Bucket capacity, m3
DX55W	5550	40,0	0,18
DX140W	13750	97,0	0,64
DX160W	14800	97,0	0,76
DX190W-5	18840	115,0	0,8
DX210W-5	20800	141,2	1,17
S180W-V	17700	110	0,93
S210W-V	19800	115	1,18

Home: All the advantages of wheeled excavators ch2 (Hitachi, JCB)

Continuation: All the advantages of wheeled excavators ch4 (Volvo, Liebherr)

Text: V. Orlov

primary source magazine "Fixed assets" www.os1.ru

Wheeled excavator TEREX WX200 technical specifications

ENGINE

Engine make and model - YaMZ 530 series Engine type - Six-cylinder single-row four-stroke diesel engine with water cooling, direct injection, turbocharged and charge air cooling, electronically controlled. Rated flywheel power, (SAE, net) at speed - 147 kW at 2000 rpm Max. torque, N*m, no less - 930 Working volume - 6.65 l Batteries - 2x6ST-190 Starter - 24V, 4 kW Generator - 28V, 100A

PLATFORM ROTARY SYSTEM

Swing mechanism - Planetary gearbox with brake and axial piston hydraulic motor Platform swing brake - Permanently closed automatic, built into the swing motor Swing speed - 10.5 rpm

STEERING

Type - Hydrostatic, with a hydraulic metering pump driving the hydraulic cylinders for turning the wheels on the front axle. Minimum turning radius - 8500 mm

WHEEL TRAVEL

Hydrostatic 4 wheel drive. The constant mesh transmission provides 2 forward and reverse gears, with power shifting. Maximum traction force - 12530 kgf (125.3 kN) Maximum travel speed in 1st gear: 8.8 km/h Maximum travel speed in 2nd gear: 35 km/h Gradeability - 35° (70%) Working brakes - Permanently open, maintenance-free multi-disc oil-immersed, hydraulically driven. Parking brake - Permanently closed, maintenance-free, multi-disc, oil-immersed, hydraulically actuated. Tires (standard) - dual, tube 10.00-20

HYDRAULIC SYSTEM

Main pump type - Adjustable axial piston pump with swashplate. Nominal flow of the pump unit - 420+37.5 l/min Pump for the control circuit - Gear drive hydraulic motor - Axial piston hydraulic motor with an inclined block, with an anti-overrunning valve. Hydraulic cylinders, Rod x Piston diameter x Stroke, mm:

Boom: 80x125x1325
Handle: 100x140x1595
Bucket: 80x125x1070
Blade: 63x100x240
Outriggers: 80x125x375
Stabilizers (optional): 80/—/110
Read also: Mini-loader CHETRA MKSM: now in the “Premium” configuration
Wheeled excavator TEREX W200 (buckets)

TEREX W200 EXCAVATOR FILLING CAPACITIES

Fuel tank - 350 l.
Engine cooling system - 35 l.
Engine lubrication system - 23 l.
Platform rotation mechanism 4.6 l.
Front axle - 9.6 l.
Rear axle 13.0 l Gearbox - 2.9 l.
Hydraulic system - 400 l.
Hydraulic tank (volume of working fluid, max.) - 290 l.

OPERATING WEIGHT

Operating weight	21,7			22,3
The operating weight of the excavator is calculated for the standard configuration: monoblock boom, standard arm and bucket, filling all filling tanks with lubricants, coolant and hydraulic fluid, full fuel tank, operator 75 kg, full set of equipment for the standard configuration.
Undercarriage	with outriggers and removable dozer blade 6900 kg			with outriggers and removable outrigger beam 7400 kg
Turntable with mechanisms not filled	Weight	9770 kg
Monoblock boom including stick cylinder	Length	5700 mm
Monoblock boom including stick cylinder	Weight	1800 kg
Handle with heavy-duty bucket, with bucket mechanism	Length	2000 mm	2400 mm	2920 mm	3500 mm
Handle with heavy-duty bucket, with bucket mechanism	Weight	1010 kg	1100 kg	1240 kg	1405 kg
Bucket with fastening pins	Capacity, SAE	0.65 m3	0.9 m3	1 m3	1.25 m3
Bucket with fastening pins	Weight	757 kg	897 kg	917 kg	967 kg

Did your backhoe loader break down again?

Your operators cannot find the causes of breakdowns? Tired of the eternal downtime of special equipment? No spare parts and wasting time? This situation is probably familiar to many. It's time to entrust equipment maintenance and repair to professionals!

The service department of our Company provides maintenance and repair services for TEREX backhoe loaders:

seasonal and routine maintenance in compliance with all requirements of the equipment manufacturer;
diagnostics of engine, gearbox, hydraulic and brake systems;
repair of backhoe loaders of any complexity, including major repairs.

TEREX repair in Service is the solution to your problems!

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Overall dimensions of the Terex W200 excavator

Wheeled excavator TEREX W200

Monobloc boom	5700 mm
Handles	2000 mm	2400 mm	2920 mm		3500 mm
A Overall turntable width	2500
B Overall width of excavator	2517
C Overall height of the cabin, mm	3160
D Platform tail radius	2750
E Engine hood height	2436
F Clearance under counterweight	1288
G Chassis base	2800
H Chassis length, mm	4904 (4 outriggers) / 4897 (blade + 2 outriggers)
I Track width	1912
K Minimum ground clearance	331
L Overall length	9540	9530		9580	9360
M Total boom height	3170	3130		3470	3980
*M Overall height along the boom when moving under its own power (lift 200 mm)**	3370	3330		3670	4180