A General Guide On Repairing Your Hydraulic Cylinder

Hydraulic cylinders are a very common component in various machines, such as tractors. To save money, you may choose to perform hydraulic cylinder repairs yourself. However, this can be very challenging because all cylinders are different and you will need to purchase a hydraulic cylinder repair kit in order to repair your cylinder. While hydraulic cylinders can vary in how they are constructed, there are basic steps that should be taken to repair them.

Identifying The Parts

The part numbers are usually placed on the end cap of the hydraulic cylinder. The parts numbers may also be on the outside of the cylinder. When the cylinder comes from a major make, you will often be able to find a repair kit at a local dealer. 

Using A Diagram

Try to locate a parts diagram. This will make it easier for you to make repairs of your cylinder because you will know where everything is supposed to go. Fortunately, by knowing the make of the cylinder, you can often find such a diagram online. Fortunately, by having part numbers, it will be much easier to order replacement parts online. You may also need to purchase certain tools, such as a:

  • Screwdriver
  • Pliers
  • Rubber mallet
  • Torque wrench

The device that is to be repaired must always be turned off before performing repairs. To prepare, clean off the hydraulic unit and drain it of hydraulic fluids. The fluid can be drained by opening the cylinder port. As you are disassembling the cylinder, you may discover dirt and should clean it off in order to work on the parts more effectively. Also, the dirt may be part of why the cylinder isn't working in the first place.

Replacing Damaged Parts

As you are disassembling the cylinder, there are many parts you may need to replace if damaged, including:

  • Seals
  • Pistons
  • Rings

You will also need to lubricate the cylinder tube and piston seals. Petroleum fluids are used the most often to lubricate a hydraulic cylinder. 

If you are still having a difficult time repairing your hydraulic cylinder, it is best to hire a professional. If you perform repairs that actually cause damage for the cylinder, this will cost more money in the long term. Also, when the cylinder is meant to support heavy objects, it may be risky unless you have the capability of supporting the weight of the object while performing the repairs.