What should be used to clean hydraulic systems before inspection?

Using specialized solvents to clean hydraulic systems before inspection is essential because these solvents are specifically formulated to dissolve and remove contaminants, such as dirt, grime, and old hydraulic fluid residues without damaging the system’s components. Regular cleaning helps ensure that the hydraulic system operates efficiently and reduces the risk of failure. Specialized solvents are designed to evaporate quickly or leave minimal residue, thereby preventing further complications during operation.

In the context of hydraulic system maintenance, utilizing fresh water is generally ineffective because it does not possess the chemical properties required to break down oils and other residues often found in hydraulic systems. Compressed air may assist in removing loose particles, but it won’t effectively cleanse or remove lingering fluids and contaminants. Similarly, using hydraulic fluid itself for cleaning can lead to further contamination and does not address the necessary removal of grime or foreign materials. This makes specialized solvents the most appropriate choice for preparing hydraulic systems for inspection.