CAT 259D Problems: Common Issues and Solutions for Them

Caterpillar, or simply CAT, is best known for its strong global presence when it comes to mining and construction equipment. It has a wide selection of products for different work applications, and one of them is the CAT 259D Compact Track Loader (CTL).

The CAT 259D is chiefly characterized by its vertical lift design that enables extended reach and lift height for quick and simple truck loading. Its standard, suspended undercarriage system offers the traction, flotation, stability, and speed needed to operate in a variety of applications and ground conditions. However, like any other heavy machinery built for tough workloads, it has its limits, and that's exactly what we are going to show you here as you go on.

Most Common Problems Found in the CAT 259D and Their Fixes

The CAT 259D is generally praised for its stability, traction, flotation, performance, and resiliency. However, there are things that you should watch out for, and these are the following:

1. Leaning Effect on the Axles

The axles of the CAT 259D compact track loader are an important part of the machine. They provide support to the tracks and allow them to rotate. The axles also help transfer power from the engine to the tracks.

The leaning effect on the axles of CTL can be caused by several factors. One possible cause is that the weight of the machine is not evenly distributed on the tracks. This tends to happen if there is a lot of weight on one side of the bucket. Another possible cause is that one of the tracks is not properly tensioned. This can happen if the track tensioning system is not working correctly, or if the track has been damaged.

The solution to the leaning effect is to properly distribute the weight of the machine on the tracks and to ensure that the tracks are properly torqued. If one of the tracks is damaged, it should be replaced.

2. Weak Hydraulic Lines

As with any other CTLs, the hydraulic system is a key component of the CAT 259D compact track loader. Its function is to provide power to the loader's various moving parts, including the tracks, bucket, and arms.

If the hydraulic system is not working properly, it can cause some problems for the loader. For example, if the hydraulic lines are weak or failing, it can force the tracks to lose traction or become sluggish. This can make it difficult or impossible to move the loader around. Additionally, if the bucket or arms are not receiving enough power from the hydraulic system, they may move slowly or not at all.

There are a few possible causes of weak or failing hydraulic lines. One is that the lines may be leaking. Another is that the hydraulic fluid may be old or dirty. Finally, the pump may not be working properly.

The best way to solve this problem is to have a mechanic check the hydraulic system and repair or replace any parts that are not working properly. In some cases, it may be necessary to completely replace the hydraulic system. However, this should only be done by a qualified mechanic.

If you notice any of the above symptoms, it is important to take action quickly. A failing hydraulic system can cause serious damage to your loader and make it difficult or impossible to use. By taking care of the problem early, you can avoid expensive repairs or replacements down the road.

3. Fuel Pump Not Repriming the Fuel Filter Once Replaced

The fuel pump on the CAT 259D compact track loader is responsible for drawing fuel from the tank and delivering it to the injectors at the correct pressure. The pump is usually located inside the fuel tank, although some models have an external pump mounted on the frame.

If the fuel filter becomes clogged, it can cause the fuel pump to lose suction and fail to prime properly. This can lead to engine starting problems or even stalling. Replacing the fuel filter should remedy this problem, but if the pump does not start priming again, there may be another issue at play.

Possible causes of a fuel pump not repriming after a fuel filter replacement include a faulty check valve in the pump itself, a clogged fuel return line, or a problem with the electrical connection to the pump. Replacing the fuel pump is the recommended course of action if it does not start priming again after the filter is replaced. In some cases, it may also be necessary to replace the fuel tank, wiring harness, and fuel line.

4. Blown Fuel Pump Fuse

The fuel pump fuse of the CAT 259D compact track loader is responsible for managing power that's directed to the fuel pump. There have been complaints that this fuse tends to blow when changing the fuel pump, which can cause the engine to stall or fail to start.

The possible solution for a blown fuse is to replace it with one that has the same amperage. The fix should also include checking the new fuel pump for likely defects, and unfortunately replacing it again if needed.

Moreover, evaluating the wiring and testing the electrical system are recommended to ensure that everything is in working order. Replace the wires or any other parts of the electrical system that may have been compromised by the shorting.

5. Mud or Dirt Accumulation in the Oil Pan

The oil pan of the CAT 259D compact track loader is responsible for holding the engine oil. It is located at the bottom of the engine and is usually made of metal. The oil pan can become damaged or dirty over time, which can cause problems for the engine.

Mud or dirt can accumulate in the location of the oil pan for several reasons. One possible reason is that the seals on the oil pan are not functioning properly. This can allow dirt and debris to enter the oil pan and contaminate the engine oil. Another possible reason is that the drains in the oil pan are blocked. This can make the engine oil dirty and contaminated.

There are a few different solutions to this problem. One solution is to replace the seals on the oil pan. This will ensure that the oil pan is sealed properly and that dirt and debris cannot enter. Another remedy is to clean the drains in the oil pan. This will ensure that the engine oil can drain properly and that it will not become contaminated.

It is important to take care of this problem as soon as possible. If the engine oil becomes contaminated, it can cause serious damage to the engine. Replacing the seals on the oil pan or cleaning the drains in the oil pan is the best way to prevent this problem from happening.

6. Openings Behind the Tracks that Tend to Accumulate Dirt

By design, there's a huge gap in the plate behind the track that tends to be the main entry point of mud. Over time, these can harden underneath the loader and potentially cause issues.

One way to avoid this is to use a rubber flap or similar device to prevent debris from entering in the first place. Another is to regularly clean the area and clear any buildup that may have accumulated.

If the problem has already manifested, then it's important to take care of it as soon as possible. The best way to do this is to use a high-pressure washer to remove the hardened mud. Make sure to get all of it, as even small bits can cause issues down the line.

Once you've removed the offending material, it's a good idea to apply a sealant or coating to the area. This will help prevent future problems and make it easier to clean should anything manage to get past your defenses.

With a little care and attention, you can keep your CAT 259D CTL running like new for years to come.

7. Poor Customer Service

This is not a problem with the CAT 259D per se but is something that you may have to contend with if you happen to be one of its owners. There have been mounting complaints about the online or phone support of CAT whenever customers try to seek aid for issues.

According to those who have experienced this, the other person on the line doesn't normally take time to listen to what the customer has to say and will mostly recommend bringing the vehicle to the dealership for repairs right off the bat. Now, that can be such a hassle if you're coming from a place that's remotely located to your CAT dealership and it turns out that there is a simple way to fix the issue on your own with just minor technical assistance from the part of CAT.

Final Words

The issues with the CAT 259D highlighted here are in no way a representation of the overall effectiveness, caliber, or dependability of the CTL. If you add up the significantly low number of complaints about the product though, the issues mentioned here are merely the most prevalent ones.

No matter the issue you are having with your CAT 259D, don't hesitate to seek the services of a skilled mechanic so you can quickly and easily get things resolved if you end up experiencing any of these.