Simply mentioning “hydraulic system problems” is often enough to instill fear in many business owners, manufacturers, and industrial facility managers. Hydraulic systems play a crucial role in powering various machines across industries such as automotive, fabrication, and construction. A well-operating hydraulic system is essential for ensuring peak performance from heavy equipment to precision machining tools.

Car Lift Repair Near Me Hydraulic systems utilize hydraulic fluid to transmit power and execute mechanical work, leveraging its versatility, efficiency, and precise control capabilities. Despite their benefits, hydraulic systems can encounter issues over time. This guide aims to assist in identifying and resolving common hydraulic system problems. Whether it’s a hydraulic hose repair, cylinder malfunction, or the need for a dependable repair service, Hamilton Machine is the trusted solution.

Hydraulic Systems 101: Overview

Let’s delve into how Car Lift Repair Near Me hydraulic systems function and their essential components:

Principle of Operation:

Hydraulic systems operate based on the principle that a change in pressure applied to an enclosed fluid is transmitted undiminished throughout the fluid and its container.

Key Components:

These include Car Lift Repair Near Me hydraulic fluid, typically oil-based, chosen for its incompressibility and resistance to temperature changes; a pump responsible for generating fluid flow and pressure; actuators like cylinders and motors converting fluid pressure into mechanical force or motion; valves for control; reservoirs, filters, hoses, pipes, and an accumulator for storing hydraulic energy.


The process begins with the pump drawing fluid from the reservoir, pressurizing it, and then directing it to the actuator. The pressurized fluid generates motion in the actuator, after which it returns to the reservoir for reuse.

Advantages of hydraulic systems include power transmission, speed and force control, durability, and efficiency. However, like any mechanical system, hydraulic systems may require service and repair.

Identifying Hydraulic System Issues:

Common problems include leakage, loss of power, and unusual noises, indicating issues such as cavitation, aeration, or component wear. Hamilton Machine offers comprehensive assessment and repair services for hydraulic systems.

Repairing Common Hydraulic System Problems:

Car Lift Repair Near Me Hydraulic hose repair involves identifying and replacing damaged hoses, while hydraulic cylinder repair entails inspecting and replacing worn-out components to ensure optimal functionality.

Car Lift Repair Near Me provides expert repair services, ensuring hydraulic systems operate efficiently and reliably.

Car Lift Repair Near Me Cylinders, as a product group, are nearly as prevalent as pumps and motors combined. Compared to other hydraulic components, they’re less intricate, making repairs relatively straightforward. Consequently, many hydraulic equipment owners opt to conduct cylinder repairs themselves.

Outlined below is a guide to proficiently executing hydraulic cylinder repairs. The extent of in-house repair feasible depends on the cylinder’s wear or damage and the repair shop’s resources. Like any repair, the decision to repair a cylinder hinges on the availability and cost of a new one.

Disassembly and Inspection

Thoroughly inspecting cylinder parts, especially seals, post-disassembly can uncover hidden issues.

Piston Seal

If the Car Lift Repair Near Me piston seal is severely distorted, eroded, or absent, or if the barrel is oversized or has bulged from use, replacing the barrel or the entire cylinder is advisable. Merely replacing the piston seal without addressing barrel issues is a temporary solution requiring comprehensive maintenance soon.

Rod Seal

A severely distorted rod seal usually indicates excessive wear on the guide bush or a bent rod, causing seal failure. Replacing the rod seal without resolving the underlying cause is a short-term fix.


Using dye penetrant, check the rod for cracks at points of cross-section change. Inspect the chrome surface for dullness, indicating bending. Straighten bent rods in a press, ensuring minimal damage to the hard-chrome plating. For pitted or scored chrome surfaces, consider rechroming or replacement.


In light-duty applications, the rod might directly bear on the head, typically aluminum alloy or cast iron. Replace any metallic or nonmetallic guide bush (wear band) if present. Measure the head’s internal diameter for ovalness, replacing or sleeving if necessary.


Inspect for internal pitting or scoring, honing or replacing as needed. Oversize seals may salvage slightly oversized barrels. Large diameter barrels can be honed oversize and fitted with corresponding seals.


Minor scoring on light-duty piston exteriors is acceptable, provided the minimum diameter isn’t less than nominal minus 0.006 inch. Replace worn nonmetallic wear bands.

Seal Ordering

When ordering seals, measure all seal grooves and avoid relying solely on old seal measurements to accommodate for potential shrinkage, swelling, or prior incorrect installations.


Clean all parts with a petroleum-based solvent and coat them with clean hydraulic fluid during assembly. Ensure seal grooves are clean and free from imperfections before installing seals. After assembly, plug service ports to prevent moisture or dirt ingress.

Hydraulic systems find application across various industries for tasks like moving or clamping heavy objects. Unlike pneumatic systems, they utilize specialized hydraulic oil as the fluid medium instead of compressed air.

A pump or compact power pack assembly generates the necessary fluid pressure by pumping oil from a reservoir into the system. Hoses and piping transport the pressurized fluid to load devices, typically hydraulic cylinders and motors. Return lines are essential to channel oil back to the reservoir from each device.

Over time, load devices using oil for motion are prone to wear and breakdowns. Replacing hydraulic components can entail messy work and prolonged machine downtime. In this article, I’ll delve into the causes of hydraulic cylinder wear and discuss preventive and corrective measures to enhance cylinder lifespan.

Common Hydraulic Issues

With pressurized fluid facilitating cylinder extension or retraction, maintaining fluid containment within the system poses a common challenge. Fluid leakage can stem from various factors: extreme temperatures, seal erosion due to fluid particles, misalignment, or corrosion. When fluid leaks from the system, the cylinder’s power diminishes, eventually leading to system failure. Below are some typical sources of system leaks:

Contaminated Fluid: The cleanliness of hydraulic fluid is paramount for system functionality, as it prevents corrosion and cavitation. Air ingress, causing compression, and small particles bypassing filters can erode seals and components over time, leading to leakage.

Temperature Extremes: Hydraulic seals operate optimally within specific temperature ranges. Exceeding these ranges can compromise seal integrity, potentially resulting in hazardous oil leaks under high pressure and temperature conditions.