Caterpillar 438 II, 1991 Technical Specifications

Introduction

The Caterpillar 438 II, 1991 is a versatile and powerful backhoe loader that has been designed to serve many different purposes. With its SideShift or CenterMount system, impressive slew system, and other features, the 438 II has become a favorite of many professionals in the construction, landscaping, and agricultural industries. However, like any piece of machinery, there are both advantages and disadvantages to consider when analyzing its technical specifications.

Advantages

SideShift or CenterMount

One of the notable features of the Caterpillar 438 II is its ability to shift to a side or center position. This feature provides more precise and accurate digging, as the operator can align the machine with the trench or hole to be dug. This feature also allows the operator to change between different attachments easily, making the machine more versatile and useful. For example, if the machine is used for landscaping, the operator can quickly switch from a bucket attachment to a fork attachment to move dirt, rocks, and debris.

SAE dig depth and reach

The SAE dig depth of 4198 mm and reach at ground level of 5605 mm provide the Caterpillar 438 II with the ability to handle intensive digging jobs. The machine can reach deep into the ground and remove large quantities of soil. This makes it an ideal machine for jobs that require large quantities of dirt to be moved, like excavating a foundation for a house or digging a swimming pool.

Loader Bucket Capacity

The loader bucket capacity of 1 cubic meter means the Caterpillar 438 II can handle large loads easily. The machine can scoop up large amounts of soil, gravel, sand, and other materials and then deposit them where needed. This feature is particularly useful for tasks involving moving large amounts of soil, debris, or other materials around a job site.

Transmission and drive

The transmission on the Caterpillar 438 II is a Powershift transmission, which provides smooth shifting between gears for a more comfortable ride for operators. Additionally, the transmission is equipped with a P’shuttle, which allows the operator to shift between forward and reverse without using the clutch. The 4-wheel drive feature provides extra stability and traction to the machine. This makes it easier to maneuver the machine in rough terrain, like construction sites or steep hills.

Disadvantages

Pump flow and relief valve pressure

The pump flow on the Caterpillar 438 II is 138 liters per minute, which is lower than what is found in some competing models. This lower flow may result in slower cycle times when using attachments like the backhoe or when lifting heavy loads. Additionally, the relief valve pressure of 186 bar may limit the machine’s hydraulic capabilities, which could mean less power for digging or lifting.

Ride control

The Caterpillar 438 II does not come equipped with ride control as a standard feature. This can mean that the ride is bumpier and less comfortable for the operator, which can lead to fatigue over time. In other models, ride control is used to absorb shock and vibrations, making the ride smoother and more comfortable for the operator.

Operating weight

At an operating weight of 7345 kg, the Caterpillar 438 II is heavier than some other backhoe loaders in its class. This could make it less maneuverable in tight spaces, like residential homes or small construction sites. Additionally, the weight could affect fuel consumption, as it requires more power to move a heavier machine.

Real-World Examples

Advantages in Construction

In construction, the Caterpillar 438 II’s versatility is highly valued. With its SideShift or CenterMount system, the machine is well suited for digging foundations, trenches, and post holes. Additionally, the loader bucket capacity makes it perfect for loading and unloading heavy equipment and materials like bricks or cinder blocks. The SAE dig depth and reach make it ideal for building retention walls or excavating sites for underground installations such as pipes.

Advantages in Landscaping

The Caterpillar 438 II also has potential in landscaping jobs. For example, in leveling land, the machine’s loader bucket can spread dirt and gravel quickly and uniformly. The CenterMount system allows the operator to accurately position the machine to avoid damaging or destroying existing trees, shrubs, or flower beds.

Disadvantages in Agricultural Settings

One potential disadvantage of the Caterpillar 438 II is its weight. In agricultural settings, it may be difficult to move the machine around tight spaces and small tracts of land. Challenges may also arise when the machine needs to be transported over roads that have load limits.

Overall Assessment

Overall, the Caterpillar 438 II provides many features that make it a versatile and capable machine for a variety of purposes. When compared with other competing models, it has some advantages in areas like loader bucket capacity and SAE dig depth. However, some disadvantages, like the lack of ride control and the weight of the machine, may make it less suitable for some jobs. Ultimately, it is important to assess the specific needs of a job site before deciding if the Caterpillar 438 II is the best fit for the job.