Husqvarna Wacker Neuson CRT60-74LX, Operator'S Manual

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CRT60-74LX Maintenance
6.8 Hydraulic System Cleanliness
Keeping the hydraulic oil clean is a vital factor affecting the service life of hydraulic
components. Oil in hydraulic systems is used not only to transfer power, but also to
lubricate the hydraulic components used in the system. Keeping the hydraulic
system clean will help avoid costly downtime and repairs.
Sources of
contamination
Major sources of hydraulic system contamination include:
■ Particles of dirt introduced when the hydraulic system is opened for
maintenance or repair
■ Contaminants generated by the mechanical components of the system during
operation
■ Improper storage and handling of hydraulic oil
■ Use of the wrong type of hydraulic oil
■ Leakage in lines and fittings
Keeping the
system clean
Perform the tasks below to minimize hydraulic oil contamination.
 Clean hydraulic connections before opening the lines. When adding oil, clean
the hydraulic tank filler cap and surrounding area before removing it.
 Avoid opening the pumps, motors, or hose connections unless absolutely
necessary.
 Plug or cap all open hydraulic connections while servicing the system.
 Clean and cover the containers, funnels, and spouts used to store and transfer
the hydraulic oil.
 Change the hydraulic filters and oils at the recommended service intervals.
 Flush the strainer in the rear of the machine after hydraulic component failure. A
screen is located inside the collector with case drain lines attached. The screen
catches larger debris generated in the event of a failed component and keeps
the reservoir and other hydraulic components from being affected.