Walker has the region’s most advanced hydraulic diagnostic and testing technology available along with a team of experienced hydraulic specialist who can quickly repair hydraulic cylinders and pumps. All of our repairs are performed to Caterpillar’s specifications while using Genuine Cat Parts. We also impeccably service and repair all other makes and models such as John Deere, Komatsu, and Volvo.

Caterpillar’s reusability guidelines are followed to reuse your parts when possible to hold repair to the lowest cost. We are even able to search for older parts or use our large network to find those not-so-common parts we may need to repair your hydraulic components – anything to keep your cost low – but keep the quality high.

After our specialized hydraulics team has repaired your machine’s hydraulic system we perform several tests. The hydraulic cylinders are tested under “load-type” conditions for internal or external leaks to ensure that your machine is capable of running under work-like conditions. We are confident in all of our repairs and our hydraulic repairs are all backed by a 6 month warranty to ensure you are satisfied.


Did you know that 85% of hydraulic system failures can be traced to contamination?
Consider the following tips to maintain clean, pristine machines:

Types of Contaminants

It’s not just foreign matter that causes damage in the hydraulic system. Air, water and heat can take their toll as well.
Abrasive particles like aluminum and silica cause sticky valves and poor pump performance. Water can also be very damaging to hydraulic systems, forming bubbles in hydraulic fluid the pit internal component surfaces. Air trapped in the system causes jerky motion and heat accelerates component wear by reducing hydraulic fluid’s ability to lubricate.

Sources of Contaminants

Worn seals, faulty gaskets, leaky valves or defects in cylinder rods can expose the machine to contaminants. Insufficient lubrication or improper clearances can cause internal wear. New components such as hoses containing dirt can also introduce contaminants, and similarly, fluids can pick up contaminants from a dirty storage container.

Tracking Contaminants

Cat SOS Fluid Analysis should be performed every 500 hours in most applications. We can help ensure your machines receive fluid regularly, when it’s convenient to your work schedule. A key aspect of maintenance, fluid analysis performs several important functions:

  1. Defines the health of hydraulic fluid
  2. Determines wear rate of internal components
  3. Enables repair or replacement before failure.

Controlling Contaminants

Several simple tasks can significantly impact the hydraulic system efficiency of your machines.

  1. Check each machine for leaks during a daily walk-around inspection
  2. Use proper filters and change them regularly
  3. Select the proper hydraulic fluid and filter it when transferring it between storage locations
  4. Flush dirty hydraulic systems and refill them with clean, new fluid

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