Caterpillar 428B, 1994 Technical Specifications

Introduction

The Caterpillar 428B is a backhoe loader with a SideShift or CenterMount, depending on the model. It has a variety of technical specifications, including a SAE dig depth of 4766mm, a reach of 5727mm, and a loading height of 3803mm. The loader bucket capacity is 1m3, and the pump flow is 146 liters per minute. There are advantages and disadvantages to these specifications.

Advantages and Disadvantages

SideShift or CenterMount

The SideShift and CenterMount configurations offer different benefits. The SideShift allows for greater maneuverability and can be helpful in tight spaces. It also enables the operator to dig next to walls or obstacles without needing to reposition the machine. However, the CenterMount configuration provides better lifting performance and stability, making it more suitable for lifting heavy loads or digging deep trenches. Choosing between the two depends on the specific needs of the job.

Dig Depth, Reach, and Loading Height

The Caterpillar 428B has a SAE rated dig depth of 4766mm, a reach of 5727mm, and a loading height of 3803mm. These specifications make it suitable for a wide range of construction and excavation tasks. The machine can reach deep into the ground, and the loading height allows it to easily load and unload materials. However, the machine may not be suitable for jobs that require greater digging depth or reach, in which case a different model may be necessary.

Bucket Width and Breakout Force

The Caterpillar 428B has a minimum and maximum bucket width of 300mm and 900mm, respectively. The bucket breakout force is 5303kgf, while the dipper breakout force is 3461kgf. These specifications make the machine suitable for excavating soil, sand, and other loose materials. The bucket width range allows the machine to take on different types and volumes of materials, while the breakout force ensures efficient digging. However, the machine may not be suitable for tasks that require greater digging force, such as breaking through hard rock or concrete.

Loader Bucket Capacity and Dump Height

The Caterpillar 428B has a loader bucket capacity of 1m3, and a dump height of 2643mm. These specifications make the machine suitable for loading and unloading loose materials, such as sand and soil. The bucket size allows for efficient material handling, while the dump height enables the machine to deposit materials high enough to avoid obstacles or backfill trenches. However, the dump height may not be sufficient for jobs that require greater elevation or precision.

Slew System

The Caterpillar 428B uses a cylinder slew system, which provides smoother and more controlled rotation. This system enables the operator to position the bucket more precisely while digging, which can be helpful in certain tasks, such as trenching or fine grading. However, this system may not be suitable for jobs that require faster or more forceful rotation, such as breaking through hard materials.

Engine and Transmission

The Caterpillar 428B is powered by a Cat 3054 engine, with a power output of 55kW@2200rpm and a displacement of 4 liters. It has a P’shuttle transmission and can be operated in either 2WD or 4WD. The engine provides sufficient power for most excavation and material handling tasks, while the transmission allows for greater control and precision. However, the engine may not be suitable for tasks that require greater power or speed, in which case a different model may be necessary.

Turn Circle Radius and Operating Weight

The Caterpillar 428B has a turn circle radius of 8110mm without brakes, which can make it difficult to maneuver in tight spaces. However, it has an operating weight of 7526kg, which provides stability and helps prevent tipping. The operating weight also allows the machine to handle heavier loads without compromising performance. However, the weight may limit the machine’s mobility and require additional time and effort to transport to and from job sites.

Real-world Examples

The Caterpillar 428B has been used in a variety of construction and excavation projects, ranging from residential developments to road building. In one example, the machine was used to excavate the foundation for a new housing development. The SideShift configuration enabled the operator to work closely to existing properties without causing damage, while the digging depth and reach allowed for efficient excavation. The loader bucket capacity and dump height facilitated quick removal of excavated materials, while the operating weight provided stability when working on uneven terrain.

In another example, the Caterpillar 428B was used to build a new road. The machine’s CenterMount configuration provided greater lifting performance and stability, which was necessary for handling heavier loads of materials. The bucket width allowed for efficient loading and unloading of materials, while the cylinder slew system enabled precise positioning of the bucket while digging and grading. The operating weight also allowed the machine to handle the rugged terrain and steep inclines along the road.

Overall Assessment

The Caterpillar 428B is a versatile and reliable machine that offers a range of technical specifications suitable for a variety of construction and excavation tasks. Its SideShift or CenterMount configuration, SAE dig depth, reach, loading height, bucket width, and breakout force makes it a highly efficient digging machine. The loader bucket capacity, dump height, and cylinder slew system facilitate efficient material handling, while the engine and transmission support greater control and precision. However, the machine’s turn circle radius and weight may limit its maneuverability in certain job sites. Overall, the Caterpillar 428B is a solid choice for those in need of a reliable and powerful backhoe loader.