Borescope Inspection for Hydraulic Systems and Components

Hydraulic systems are widely used in construction equipment, industrial machinery, manufacturing equipment, aerospace systems, and mobile machinery.

Hydraulic cylinders, valves, housings, and internal passages may be difficult to inspect without disassembly.

A hydraulic inspection borescope can provide remote visual access to suitable internal areas and help maintenance personnel document visible conditions.

What Hydraulic Components Can Be Inspected?

Depending on the design and access points, a borescope may be used to inspect:

• Hydraulic cylinders

• Cylinder walls

• Valve bodies

• Internal passages

• Housings

• Accessible seals

• Surface condition

• Deposits and contamination

What Should Inspectors Look For?

A visual inspection may identify:

• Scratches

• Scoring

• Corrosion

• Surface wear

• Deposits

• Foreign particles

• Mechanical damage

• Visible seal-related abnormalities

The ability to identify a specific defect depends on its size, location, accessibility, and the imaging system used.

Why Use a Borescope?

Hydraulic components can be expensive and time-consuming to dismantle.

Remote visual inspection can help maintenance teams obtain additional information before deciding whether disassembly is necessary.

Benefits include:

• Reduced inspection time

• Less unnecessary disassembly

• Image and video documentation

• Access to confined areas

• Easier condition comparison

Choosing a Hydraulic Inspection Camera

Probe Diameter

The camera must fit through the available opening.

Probe Length

Choose sufficient length to reach the target area.

Articulation

Articulation can be valuable when inspecting curved or complex internal passages.

Image Quality

The camera should provide sufficient image quality for the intended inspection task.

Viewing Direction

Side-view capability can be useful when the target surface is around the side of the probe.

Hydraulic Cylinder Inspection

Hydraulic cylinders are a good example of an application where internal visual access can be useful.

Depending on the cylinder design, an inspection camera may help examine accessible cylinder-wall surfaces and identify visible scoring, corrosion, contamination, or other abnormalities.

However, hydraulic system pressure and safety procedures must be properly controlled before inspection.

A hydraulic inspection borescope can provide useful visual information about accessible internal areas of hydraulic cylinders, valves, housings, and other components.

The right system depends on the access diameter, inspection depth, internal geometry, and environmental conditions.