Hydraulic systems use many parts that can wear over time and become ineffective or stop working altogether. Often making repairs to something like a hydraulic cylinder means taking the machine apart and removing the cylinder, but there are some services that will come to your business and do on-site cylinder repair and service on the spot.
Hydraulic cylinders often begin to leak over time because the seal breaks down, and oil starts to run down the outside, causing a mess and potentially a drop in pressure inside the cylinder. Most hydraulic cylinders can be repaired or rebuilt, but taking them off the equipment and taking them to a shop often means several days or even a week that the machine is offline.
Using an on-site cylinder repair service to come to your shop or business and remove the cylinder, tear it down, inspect it, and make repairs on the spot is faster and will get your equipment up and running, sometimes the same day. The hydraulic tech that comes to your business should have all the tools and parts necessary to fix most industrial cylinders or order the parts if you are using something unique or rare.
Once the on-site cylinder repair tech has the cylinder off of the machine, they will take it to their van or truck, which is equipped with a shop and parts inside. The tech can disassemble the cylinder and clean all the parts to determine where the issue is. If the cylinder is scratched, it will be honed and restored, new seals are installed, and all the pieces are repaired to OE specifications.
If the threaded plates on the ends need rethreading or the bolts holding them are damaged, the tech can replace those and secure the cylinder to ensure it seals properly. All of the components on the hydraulic cylinder are serviceable in most cases, but if the case is damaged or cracked, you may have to replace it entirely. Often this is not discovered until the cylinder is disassembled, but some on-site cylinder repair services have replacement assemblies on the truck and can match one to your equipment.
Installing a new or repaired cylinder often requires the hydraulic system to be bled, removing the air and filling the system with oil. If the hydraulic oil has not been changed recently, this is a good time to drain and flush the system, then refill it with fresh oil before restarting it.
While the on-site tech is there, you may want to have them inspect the rest of the hydraulic system to determine if other issues may need addressing at the same time.