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275B SER
800-00152
HYDRAULIC OIL FILTER MAINTENANCE
HYDRAULIC OIL FILTER MAINTENANCE
HYDRAULIC OIL FILTER MAINTENANCE
HYDRAULIC OIL FILTER MAINTENANCE
HYDRAULIC OIL FILTER MAINTENANCE
A. THE "RETURN" FILTERS
A. THE "RETURN" FILTERS
A. THE "RETURN" FILTERS
A. THE "RETURN" FILTERS
A. THE "RETURN" FILTERS
Two Return Filters are used, which are mounted together with a "manifold" on the top of the Hydraulic
Oil Reservoir. See illustration below.
MANIFOLD
MANIFOLD
MANIFOLD
MANIFOLD
MANIFOLD
ELEMENT
ELEMENT
ELEMENT
ELEMENT
ELEMENT
BOWL
BOWL
BOWL
BOWL
BOWL
DIVERTER BYPASS
DIVERTER BYPASS
DIVERTER BYPASS
DIVERTER BYPASS
DIVERTER BYPASS
VALVE
VALVE
VALVE
VALVE
VALVE
COVER
COVER
COVER
COVER
COVER
HEAD
HEAD
HEAD
HEAD
HEAD
KEY TO CLEAN FLUIDS
KEY TO CLEAN FLUIDS
KEY TO CLEAN FLUIDS
KEY TO CLEAN FLUIDS
KEY TO CLEAN FLUIDS
Regular maintenance of filter elements is the key to clean fluid and long component life. Filters do not function
when elements are clogged with contaminant to the point of bypass. Therefore, it its important to do three things:
1. Check the Filter Indicator frequently to determine when the element needs servicing.
2. Make sure the filter is fitted with the correct replacement element. The correct replacement element
should be listed on the filter nameplate.
3. A periodic fluid sample of the system should be analyzed.
SERVICING ELEMENTS
SERVICING ELEMENTS
SERVICING ELEMENTS
SERVICING ELEMENTS
SERVICING ELEMENTS
1. Shut down the system and relieve all pressure in the filter line.
2. Loosen the hex head cap screws on the cover. Turn slightly to clear cover screws and remove the cover.
Allow excess fluid to drain.
3. Remove the diverter/bypass valve assembly.
4. Remove the element from the diverter/bypass valve assembly.
A. Disposable: Replace element if a disposable paper or synthetic media is used.
B. Cleanable: Soak the element in ultrasonic cleaner for fifteen minutes. If an ultrasonic cleaner is
not available, soak in hot soapy water and ammonia solution for fifteen minutes. Swish around and
blow dry from the outside in.