Hyundai is a renowned brand that has definitely stood the test of time however, even the most famous brands are known to succumb to problems overtime. In this article we are going to be discussing about some of the most common Hyundai Excavator problems and how you can easily resolve them.
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What Is Hyundai Excavator?
A Hyundai excavator is a heavy construction equipment that has a boom, dipper and a bucket. This machine is commonly used when digging, mining, demolishing infrastructure, drilling etc. There are many models of Hyundai excavators that you will find on the market but this article will just right some of the general problems they usually face.
Hyundai Excavator Problems
1. Hydraulic Pump Overheats
One of the problems that Hyundai excavators usually face is that the hydraulic pump tends to overheat. This problem is usually caused by any of the following;
- The pump may be running at a low RPM and as a result the pump will not turn fast enough which causes oil not to move thus, the engine overheats.
- The suction line or the pump may be blocked.
- Hydraulic fluid may be leaking from your tractor.
- There might be dirt or debris in your engine.
Troubleshooting Hydraulic Pump Overheats Problem
If the hydraulic pump of your Hyundai excavator is overheating, here are a few ways in which you may try to troubleshoot the problem;
- Start by checking the RPM of your pump and if it is running too low you need to adjust it until it is running at a proper speed.
- Check if there are any blockages in the hydraulic system and try to fix the problem.
- Check if there are any leakages within your system and try to fix them.
- If there is dirt or debris in your hydraulic system and try to remove them.
Hyundai excavators may start making weird noises and this problem is usually caused by any of the following;
- Loose bolts.
- Worn out or damaged bearings.
- Defective gears.
- Flexible plate damaged.
Troubleshooting Noise Problem
If your Hyundai excavator starts making weird noises, here are a few ways in which you may try to troubleshoot the problem;
- Start by checking whether there are any loose bolts on your excavator and tighten them.
- Check whether the bearings are in good condition. If they are worn out or damaged you will need to replace them.
- If the gears are defective you will need to replace them with new ones.
- If the flexible plate is damaged you need to replace it.
3. Oil Leakages
When you own a Hyundai excavator there is a chance that you will experience oil leakages. This problem is usually caused by any of the following;
- Seal may be cracked.
- Drain plug may have a crack.
- There might be a pipe or joint that is damaged.
Troubleshooting Oil Leakages Problem
If your Hyundai excavator is leaking there are a few ways you may try to troubleshoot the problem. Below are some of the techniques you may try out;
- If the seal is cracked try to fix it.
- If the drain plug has a crack you can try to fix it or you can replace the drain plug.
- Check whether there are any cracks on your pipes or joints and try to fix them.
4. Steering Wheel Drags
If you have a Hyundai excavator there is a chance that the steering wheel will drag at some point in time. This problem usually occurs when;
- Bearing is faulty or damaged.
- Spring spool is faulty.
- Flow divider coil spring is defective.
- Reaction plunger is faulty.
Troubleshooting Steering Wheel Drags Problem
When you notice that the steering wheel of your Hyundai excavator is dragging here are a few ways in which you may try to resolve the issue;
- If the bearing is faulty or damaged you will need to replace it with a new one.
- If spring spool is faulty you need to replace it with a new one.
- If the flow divider coil spring is defective you need to replace it with a new one.
- If the reaction plunger is damaged you will need to replace it.
5. Control Valve Lever Locks
The control valve lever of a Hyundai excavator may lock. This problem usually occurs when any of the following things occur;
- The valve body may be defective.
- There might be dirt, debris or a foreign object trapped between the spool and the valve body.
Troubleshooting Control Valve Lever Locks Problem
When the control valve lever of your Hyundai excavator locks, here are a few troubleshooting techniques that you can use in order to resolve the problem;
- If the valve body is defective you need to tighten body mounting bolts uniformly.
- Try to clean or remove any foreign objects that may be trapped between the spool and valve body.
6. Slow Fork Lifting
The fork of a Hyundai excavator may be slow to lift objects. This problem is usually caused by any of the following;
- Lack of hydraulic oil in the machine.
- There might be poor sealing inside the cylinder.
- Fuel filter may be plugged.
- Oil may be leaking from the joints or pipes.
- Hydraulic oil is mixed with air.
Troubleshooting Slow Fork Lifting Problem
If you notice that your Hyundai excavator is slowly lifting things here are a few ways in which you may try to troubleshoot the problem;
- Check whether there is enough hydraulic oil in the excavator and replenish it if low.
- If there is poor sealing inside the cylinder you need to replace the packing.
- If fuel filter is plugged you need to clean it.
- Check whether oil is leaking from the joints and pipes of your excavators.
- If hydraulic oil is mixed with air you need to bleed air.
What Engines Do Hyundai Excavators Use?
Most Hyundai excavators are powered by Mistubishi engines which are durable and reliable.
What Is Limp Mode On Hyundai Excavator?
Limp mode on Hyundai Excavator is a mechanism that allows you to move or operate the excavator when the machine ECM fails.
Hyundai excavators may seem problematic however, they are actually one of the best excavators available on the market. The problems indicated above can be prevented if you regularly service your excavator.