Caterpillar 428F: technical specifications, review, description

Operating Parameters

The 428 series wheeled excavators are a continuation of the American Caterpillar brand. The model combines maneuverability, efficiency and performance.

The first device from the line came off the assembly line in 1985. Subsequently, changes were constantly made to the design. Today the excavator is produced under the symbol “F2”.

Table No. 1. Technical characteristics

Power unit

In the basic configuration, the excavator is equipped with a diesel engine of its own production, 3054C. The CAT C4.4 model, which meets more stringent environmental standards, can be supplied as a separate order.

These are in-line four-cylinder engines with mechanical control, equipped with turbocharging. The design of the second engine includes an intercooler to increase power output.

Table No. 2. Characteristics of the basic 3054C

Fuel consumption

One of the indicators characterizing the operation of equipment is fuel consumption. The payback period and further operating costs depend on it.

A fuel tank with a capacity of 160 liters is installed on the excavator. This volume is enough for continuous work during one shift.

Traditionally, the manufacturer indicates fuel consumption as a range for different loads:

• low - 7.6-9.5 l/h;
• average - 9.8-11.5 l/h;
• limit - 12.4-16.5 l/h.

The Caterpillar 428f engine will deliver the stated power when operating the machine at altitudes of up to 2,300 meters above sea level. At higher elevations, torque will automatically be reduced to protect the hydraulic system and transmission.

Hydraulic system

To operate the actuators in the excavator, a hydraulic system with a closed center is used.

• The working fluid is pumped by an axial piston pump. It produces 160 l/min at a pressure of 25 MPa.
• The flows are controlled by spool valves.
• The system reservoir holds 40 liters of working fluid.

Power transmission

The CAT 428f2 loader is designed with all-wheel drive, which is typical for all Caterpillar brand machines in this class. A transmission consisting of a clutch, gearbox, transfer case, two cardans and axles is responsible for transmitting torque to the drive wheels.

• To facilitate maintenance, the final drives were made in the form of external final drives.
• A reinforced rear axle was installed on the excavator, designed to work in difficult conditions. It is equipped with self-regulating internal brakes and a differential locking clutch.
• The front axle has a pendulum-type fastening to reduce dynamic loads while driving.

In addition, the developers tried to reduce the maintenance of the structure to a minimum. The housing is sealed, and the lubricant should be sufficient for the entire service life.

Buy Cat 428F

General Purpose Machine Dimensions

Overall length (loader on ground), backhoe rotated lengthwise – 7398 mm Overall length in road position – 5744 mm Overall transport length – 5750 mm Overall transport height – 3779 mm Overall width – 2352 mm Height to top of cab/canopy – 2897 mm Height to the top of the exhaust pipe – 2744 mm Ground clearance (minimum) – 320 mm From the center line of the rear axle to the front grille – 2705 mm Front wheel tread track – 1895 mm Rear wheel tread track – 1714 mm Wheelbase (wheel drive 2 wheels / four-wheel drive) – 2200 mm

Dimensions of the universal and universal machine with forks

Overall length (loader on ground), backhoe rotated lengthwise – 7353 mm Overall length in road position – 5714 mm Overall transport length – 5704 mm Overall transport height – 3779 mm Overall width – 2352 mm Height to top of cab/canopy – 2897 mm Height to the top of the exhaust pipe – 2744 mm Ground clearance (minimum) – 320 mm From the center line of the rear axle to the front grille – 2705 mm Front wheel tread track – 1895 mm Rear wheel tread track – 1714 mm Wheelbase (wheel drive 2 wheels / four-wheel drive) – 2200 mm

Dimensions and Performance - General Purpose Loader

Capacity (according to SAE) - 1.00 m3 Width - 2406 mm Breakout force - 54.8 kN Load capacity at maximum height - 3817 kg Tipping load at breakout point - 6699 kg Dump height at maximum dump angle 2796 mm Bucket tip reach at maximum angle 805 mm Dump angle at full lift height 46° Maximum pivot height 3497 mm Maximum bucket rotation angle at ground level 38° Dig depth 61 mm Maximum grading angle 113° Blade cutting edge width - From grille to bucket cutting edge, in fork position transportation 1471 mm Maximum working height 4394 mm Maximum jaw opening — Bucket jaw clamping force — Weight (not including teeth and forks) 428 kg

Dimensions and performance - universal loader

Capacity (according to SAE) - 1.03 m3 Width - 2406 mm Breakout force - 60.4 kN Load capacity at maximum height - 3580 kg Tipping load at breakout point - 6682 kg Dump height at maximum dump angle - 2823 mm Bucket tip reach at maximum angle – 731 mm Dump angle at full lift height 46° Maximum hinge axis height – 3497 mm Maximum bucket rotation angle at ground level – 39° Digging depth – 94 mm Maximum profiling angle – 116° Blade cutting edge width – 2406 mm From the radiator grille to the cutting edge of the bucket, in the transport position – 1423 mm Maximum working height – 4883 mm Maximum jaw opening – 790 mm Bucket jaw clamping force – 61 kN Weight (not including teeth and forks) – 611 kg

Dimensions and performance - universal loader with forks

Capacity (according to SAE) - 1.03 m3 Width - 2406 mm Breakout force - 59.5 kN Load capacity at maximum height - 3402 kg Tipping load at breakout point - 6533 kg Dump height at maximum dump angle - 2823 mm Bucket tip reach at maximum angle – 731 mm Dump angle at full lift height – 46° Maximum hinge axis height – 3497 mm Maximum bucket rotation angle at ground level – 39° Digging depth – 94 mm Maximum profiling angle – 116° Blade cutting edge width – 2406 mm From the radiator grates to the cutting edge of the bucket, in the transport position – 1423 mm Maximum working height – 4883 mm Maximum jaw opening – 790 mm Bucket jaw clamping force – 61 kN Weight (not including teeth and forks) – 705 kg

Cat 3054C* Engine

Rated power (standard) 2200 rpm Gross power ISO 14396 – 68.5 kW/93 hp Net power ISO 9249 – 64.9 kW/88 hp. Net power 80/1269/EEC – 64.9 kW/88 hp. Rated power (optional) 2200 rpm Gross power ISO 14396 – 74.5 kW/101 hp Net power ISO 9249 – 70.9 kW/96 hp. Net power 80/1269/EEC – 70.9 kW/96 hp. Net torque reserve at 1400 rpm 68.5 kW/91 hp. – 38% 70 kW/94 hp — 74.5 kW/101 hp – 31% Maximum torque reserve at 1400 rpm 68.5 kW/91 hp. – 384 Nm 70 kW/94 hp — 74.5 kW/101 hp – 397 Nm Inner cylinder diameter – 105 mm Piston stroke – 127 mm Displacement volume – 4.4 l • All rated power values ​​are as close as possible to kW/hp. • All engine horsepower ratings, including those shown on the cover, are in metric units. • Net power shown is the power at the flywheel of the engine equipped with fan, air cleaner, muffler and alternator. • Ability to work at altitudes up to 3000 m above sea level. *EU Emissions Directive 97/68/EC, Stage II.

Cat C4.4 engine**

Rated power (standard) 2200 rpm Gross power ISO 14396 – 70 kW/95 hp Net power ISO 9249 – 65.7 kW/89 hp. Net power 80/1269/EEC – 65.7 kW/89 hp. Rated power (optional) 2200 rpm Gross power ISO 14396 – 74.5 kW/101 hp Net power ISO 9249 – 70.5 kW/96 hp. Net power 80/1269/EEC – 70.5 kW/96 hp. Net torque reserve at 1400 rpm 68.5 kW/91 hp—70 kW/94 hp. 36% 74.5 kW/101 hp 32% Maximum torque reserve at 1400 rpm 68.5 kW/91 hp. — 70 kW/94 hp 384 Nm 74.5 kW/101 hp 399 Nm Internal diameter of cylinders 105 mm 105 mm Piston stroke – 127 mm Displacement – ​​4.4 l • All rated power values ​​are as close as possible to kW/hp. • All engine horsepower ratings, including those shown on the cover, are in metric units. • Net power shown is the power at the flywheel of the engine equipped with fan, air cleaner, muffler and alternator. • Ability to work at altitudes up to 3000 m above sea level. **EU Emissions Directive 2004/26/EC, Stage IIIA.

Engine Features

• Three-ring pistons are made of aluminum-silicon alloy for strength and maximum thermal conductivity. • Forged chrome-molybdenum steel crankshaft with nitro-carburized journals. • The front and rear crankshaft oil seals are Viton and PTFE lip seals with an integrated dust lip. • High-temperature silicon-chromium steel intake valves and Stellite-coated exhaust valves ensure long engine life. • The cylinder block is made of high-strength cast iron. The increased height of the bottom increases strength and promotes long service life. • The tension of the front engine serpentine belt and auxiliary drive belt is automatically adjusted for long service life and reduced operating costs. • The cylinder head is made of high-strength cast iron and has increased wall and head thickness. The inlet and outlet ports are precision cast and ensure optimal movement of the working gases. • Direct fuel injection system ensures precise fuel delivery. The self-priming electric fuel priming pump ensures easier engine starting in cold conditions. Single filter fuel system reduces maintenance costs. • High torque at low engine speed improves machine performance. • Axial seal dry type air cleaner with built-in automatic dust removal system provides improved pre-cleaning. • DC engine starting and battery charging system with a voltage of 12 V and a maintenance-free battery (cold starting current - 750 A, group 31).

Bridges

Standard all-wheel drive. Features • Heavy-duty rear axle with self-adjusting inboard brakes, differential lock and final drives. • All-wheel drive (AWD) is engaged using the switch on the front console panel or using the brake pedal when using all-wheel braking. All-wheel drive can be engaged while the vehicle is moving, under load, in any forward or reverse gear. To facilitate maintenance, the all-wheel drive system is equipped with external final drives. • The 4WD front axle is swing-mounted and sealed and lubricated for life, eliminating the need for daily maintenance. In addition, the axle is equipped with a double-acting hydraulic steering cylinder, which provides a steering angle of 52° for increased machine maneuverability.

Steering

Fully hydrostatic steering system with manual metering unit. The auxiliary steering system is installed on vehicles in accordance with the legal requirements of some countries and in accordance with the requirements of the ISO 5010 standard. Type - front wheel Power steering - hydrostatic One (1) double-acting hydraulic cylinder (all-wheel drive) Cylinder inner diameter - 65 mm Piston stroke – 120 mm Rod diameter – 36 mm Turning radius Inner wheel does not brake in all-wheel drive mode Outer, on the front wheels – 8,180 mm Outer, with the widest loader bucket – 10,970 mm

Brakes

Fully sealed, hydraulic, multi-disc. Features • Internal oil-immersed, hydraulically driven Kevlar discs mounted on the final drive input shaft. • Completely sealed and lubricated. • Self-regulating. • When driving on roads, the dual power brake pedals can be locked together. • The parking brake and auxiliary brakes are independent of the service brake system. The parking brake is activated mechanically using a lever located on the right console. • Meets the requirements of ISO 3450:1996.

Weight

Standard parallel lift loader with 1.03 m3 utility bucket with forks, standard 610 mm backhoe bucket, 75 kg operator and full fuel tank. Machine Weight* (Range) 7,380-10,242 kg Operating Weight** – 8,529 kg Automatic Shift – 27 kg Air Conditioning – 39 kg Ride Control – 25 kg Utility Bucket – 1.03 m3 with Folding Forks – 871 kg without folding forks – 611 kg Telescopic stick (without front counterweight) – 299 kg Counterweights: Light – 115 kg Medium – 250 kg Heavy – 485 kg Minimum counterweight recommendations: Standard stick (4WD powertrain) General purpose – 115 kg Utility - No Telescopic Stick (Powertrain with 4WD) General Purpose - 485 kg Utility - No **Machine Weight (Range) indicates the weight of machines in base to maximum configurations. ** Operating Weight refers to the weight of the machine as standard (as stated above).

Capacity of filling containers

Cooling system with heater – 22 l Fuel tank – 160 l Engine with oil filter – 8.8 l Gearbox with gear shift servo, all-wheel drive – 18 l Rear axle (rigid/steered) Differential housing – 16.5 l Wheel axle/ final drive (volume for each side) – 1.7 l Front axle (all-wheel drive) Differential housing – 11 l Wheel axle/final drive (volume for each side) – 0.7 l Hydraulic system – 95 l Hydraulic tank – 40 l

Hydraulic system

The variable capacity, closed loop, load sensing system provides maximum hydraulic force on the cutting edges at any engine speed. This system reduces fuel consumption and reduces the effort required to operate the system. Type – closed circuit Pump type – axial piston pump with variable displacement Pump capacity – 125 l/min at 2200 rpm System pressure Backhoe – 250 bar Loader – 250 bar

Transmission

The standard gearshift transmission (Powershuttle) provides four gears for both forward and reverse.
All gear shifts are synchronized. The optional automatic transmission can operate in both automatic and manual modes. Power-shuttle gearbox Forward 1st gear – 6 km/h 2nd gear – 9.7 km/h 3rd gear – 20 km/h 4th gear – 40 km/h Reverse 1st gear gear – 6 km/h 2nd gear – 9.7 km/h 3rd gear – 20 km/h 4th gear – 40 km/h
Automatic gear shift Forward 1st gear – 6 km/h 2 1st gear – 9.6 km/h 3rd gear – 20 km/h 4th gear – 27 km/h 5th gear – 40 km/h Reverse 1st gear – 6 km/h 2- 1st gear – 13 km/h 3rd gear – 27 km/h

Torque converter with lock-up clutch

The torque converter lock-up feature automatically engages based on vehicle speed, allowing you to maintain a constant speed for longer on any terrain.

Layout

The basis of the design is a welded frame onto which the following is attached:

• power unit;
• transmission;
• cabin;
• actuators.

Almost entirely manufactured by automatic welding machines without human intervention, which increases its strength and durability.

The cabin was placed above the gearbox and rear axle. This configuration provides equally good visibility when operating the loading bucket and digging equipment. The latter is achieved by shifting the mechanism to the right side relative to the operator.

Retractable supports were placed behind the rear wheels to give the machine stability when excavating soil with an earth-moving bucket.

Description and features

Almost every brand has such machines in its lineup. One of the very first manufacturers to begin mass production of backhoe loaders is the American Caterpillar, whose first machine was introduced in 1985. From then until our time, technology has been improved many times. Thus, the modern Caterpillar 428 has a hydromechanical transmission, a powerful power plant, a reliable closed-center hydraulic system and additional hydraulic adjustment functions. This model was designed based on the tractor of the same name. The Cat 428 itself served as the basis for many other similar machines. Thanks to its versatility, optional multi-purpose attachments, great mobility and all-wheel drive, this backhoe loader is ideal for a wide range of different tasks.

The Caterpillar 428 came out quite quickly. Its maximum speed, developed when moving independently, reaches 40 kilometers per hour, which allows the vehicle to reach not too distant objects in a very short period of time. However, its transportation over long distances is carried out using a special trawl.

As described above, this model uses an all-wheel drive system. This arrangement is found in almost all modern machines produced by this manufacturer. But the main difference of this model was the advanced system that allows you to control the smoothness of the ride. This was used to prevent the machine from rocking and to compensate for shocks that occur during loading operations or when moving over rough terrain. The brake system of the equipment has high-quality and reliable brake mechanisms installed on all wheels, which ensures high braking efficiency.

The Cat 428 hydraulic system includes hydraulic distributors responsible for regulating the flow of hydraulic oil. Thanks to this, an optimal ratio of work to applied load was achieved. The design of the backhoe loader has been modernized, which made it possible to increase the initial moment during the break-off process by 10 percent.

The excavator cabin has an increased level of comfort and safety. The basic equipment is equipped with air conditioning and a well-thought-out ventilation system, thanks to which the operator can work in fairly favorable conditions, regardless of environmental factors. Only high-quality finishing materials are used, as well as sound-proofing and vibration-absorbing materials, due to which it was possible to significantly reduce the level of extraneous noise and vibrations that occur both during movement and in the work process. The operator's workplace offers excellent all-round visibility, and all controls for mounted equipment are located as ergonomically as possible, which provides additional convenience when operating this equipment. It is worth noting that the control levers have received an improved shape, resulting in less effort required by the operator. A key feature of the Caterpillar 428 backhoe loader is the advanced Accu Grade system, which allows the operator to control the angle and depth of ditches and trenches being dug, as well as additional attachments.

In the basic configuration, the equipment is equipped with a bucket with a backhoe, a multi-purpose hydraulic loading bucket and a telescopic boom with the possibility of extending the handle. Optionally, the following attachments can be installed on the machine:

1. Vibrating plate designed for compacting loose soils.
2. A hydraulic breaker used in dismantling work, as well as for loosening solid masses of soil and rock.
3. Auger drilling units designed for drilling wells of various depths and diameters.
4. Leveling equipment designed for laying asphalt or concrete pavements.

Another important advantage of this model is its ease of maintenance and repair. The hood of the car is quite large, thanks to which maintenance personnel have full access to all the most important elements and components of the power unit. It is also necessary to highlight the large angle of the turning base, the ability to move with a crab move, and the “track to track” mode (in which all wheels turn in different directions). All this provides the equipment with excellent maneuverability, which in turn allows you to perform any work in rather cramped conditions. This is precisely the reason for the model’s leading position in the global market for special equipment.

Other features of this machine are the following:

1. The boom has a curved shape, due to which the reach area when performing loading and unloading operations has been significantly increased in comparison with other models.
2. The equipment has increased cross-country ability, which allows you to move on loose soils, viscous and slippery surfaces and over rough terrain, as well as work in places that are difficult for other equipment to pass. This is due to selectable all-wheel drive and an effective braking system.
3. There is a modern satellite system Product Link, which allows you to track both the movement of equipment and its current location.

But besides the advantages, Cat 428 also has some disadvantages, namely these:

1. In the basic configuration, there is no possibility of turning the rear wheels, so the car turns only with the front ones. But this drawback can be compensated for by the additional installation of an all-wheel steering control system.
2. The installed engine is quite demanding on the quality of diesel fuel supplied. Due to low-quality fuel, its operation is uneven. This is usually corrected by installing additional fuel filters.
3. The ground clearance under the frame is not high enough, which is why various damage may occur when overcoming any obstacles.
4. Wheel mudguards are not designed to last for a long time.

But, despite this, this model has quite a lot of positive reviews from owners. As they say, even after the release of a significantly improved modification, the Caterpillar 428 is in very high demand, both among new special equipment and used ones.

Features of operation

The standard F2 model was equipped with a standard cabin. By special order, the comfort of the workplace can be increased to the “deluxe” standard with improved noise and vibration insulation.

Regardless of the class, the standard version includes a powerful air conditioning unit and security systems - ROPS and FOPS. The first protects the operator when the excavator overturns, and the second from falling objects.

The rear and front lights can be adjusted to direct the light beams to the desired point.

The developers tried to simplify and minimize operator intervention in the operation of the main components and mechanisms.

• All daily inspection points are grouped together and are easily accessible.
• The drive axles are sealed and do not require frequent maintenance or labor-intensive lubrication of units under the bottom of the machine.
• During routine maintenance, quick adjustments can be made to the telescopic boom wear pads and outriggers. The set screws are placed in an accessible place, which allows you to adjust the position of the elements without disassembling the units.
• The design of the hood with a folding radiator was also successful.
• The cooler pivots on hinges for easy access to the engine compartment.

Pros, cons

Caterpillar equipment has proven itself well at construction and loading sites. Among the advantages, machine operators highlight the following nuances.

1. Maneuverability. The short wheelbase, together with the steering angle of 52°, allows the machine to be used in confined spaces.
2. Productive hydraulics. By increasing the diameters of the cylinders and increasing the pressure in the system, the developers achieved an increase in the forces on the actuators.
3. Sustainability. All-wheel drive allows you to confidently operate on slippery or inclined surfaces.
4. Easy to use. All main components are freely accessible, which simplifies the replacement of worn parts, repair and maintenance of equipment.
5. Possibility of equipping the machine with additional mechanisms and tools.

The disadvantages include the high price of both the device itself and its maintenance. This is due to the fact that there is a direct relationship with the exchange rate.

The lack of complaints about performance is explained by the fact that the developers closely monitor the condition of the equipment in various conditions and correct existing design flaws.

Cabin

Like everything else, it is designed with the operator's needs in mind. Its main features are:

• modern design;
• high degree of security;
• maximum comfort;
• simple controls.

Increase productivity and reduce fatigue through a number of features, including remote control of the legs, large adjustable air vents, excellent interior visibility, and an air-suspended seat.

Tires for CAT, Caterpillar (CAT, Caterpillar)

Tire for CAT M313D / M315D / M316D / M318D / M318C Tire 10.00-20 front/rear Camera 10.00-20

Tire for CAT M322D Tire 11.00-20 front/rear Camera 10.00-20

CAT Backhoe Loader Tires

Tire for CAT 434E M Tire 16.9-24 or Tire 16.9-28

Tire for CAT 444E Tire 16.9-28

Tire for CAT 422F / 428E Tires 10.5/80-18 Front Tires 18.4-26 Rear

Tire for CAT 432E Tires 12.5/80-18 Front Tires 18.4-26 Rear

Tire for CAT 450E Tires 15-19.5 12PR Front Tire 21L-24 (21.3-24) Rear

Tires for CAT wheel loaders Tires for CAT 914G Tires 17.5-25

Tire for CAT IT14G Tire 15.5-25 12PR or Tire 17.5-25 12PR

Tires for CAT 938H / IT38H / 924H / 924Hz / 928Hz / 930H / CAT930G Tire 20.5-25

Tires for CAT 950H / 962H / 962G-II / IT62H Tire 23.5-25

Tires for CAT 966H / 972H Tire 26.5-25

Tires for CAT 980H Tire 29.5R25

CAT Skid Steer Tires

Tire for CAT 216B3 / 226B3 Tire 10-16.5

Tire for CAT 236B3 / 242B3 / 246C / 246B / 256C / 262C Tire 12-16.5

Tire for CAT 12K / 120M / 12M Tire 13.00-24 12PR G2 13.00-24 12PR 143A8 TG-02 TL Mitas

Tire for CAT 120K / 140K / 160K /160M Tire 14.00-24 12PR G2 14.00-24 16PR 153A8 TG-02 TL Mitas

Technical characteristics of Caterpillar 428E, weight

Load capacity at maximum height

Hydraulic pump performance at rated speed

SAE Maximum Digging Depth (Standard Stick)

SAE Maximum Digging Depth (Telescopic Stick)

The closed center hydraulic system with variable displacement axial piston pump and hydraulic flow sharing valves reduces fuel consumption, eliminates the risk of oil starvation, and minimizes steering effort. Flow and power delivery are precisely adjusted to suit the job at hand. The hydraulic hose has two layers (steel frame and fittings with an end sealing ring), which creates the necessary resistance to impulses and sudden pressure changes.

The Caterpillar 428E backhoe loader gearbox is designed for 40 km/h. It is equipped with a four-speed system with constant mesh gears and synchronizers. There is also a load shift function.

The braking system includes Kevlar discs, oil bath cooling, and a double brake pedal. A manual rear axle differential lock is standard.

The Cat 428E comes with two stick options—standard and telescopic. The loading height in the first case is provided at 3.8 m, when using a telescopic in the extended position - 4.5 m. Reach from the rotary joint at ground level is 5.7 and 6.6 m, respectively. To dampen boom vibrations when the bucket moves down, a swing damper is installed on the excavator.

Photo source: zeppelin.ru Caterpillar 428E engine develops power up to 68.5 kW

Dimensions

The table shows the overall dimensions of the backhoe loader in transport position with a standard handle.

Engine Caterpillar 428E

There are two engines to choose from, with or without turbocharging: the diesel Cat 3054C (Stage II) and the aftercooled Cat C4.4 (Stage IIIA). As standard, the first motor produces 65 kW (89 hp), the second - 67 kW (91 hp). Both engines are equipped with a highly reliable gear water pump and a durable serpentine drive belt with automatic adjustment. Glow plugs ensure the start of the power unit at temperatures down to -18°C. The 428E backhoe loader can also operate at extremely high temperatures (up to +50°C) thanks to the installed cooling system.

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