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When phosphate ester fluid is usedprefix
"F-" to the model number because the special seals
(fluororubber) are required to be used
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control over contamination of the hydr
aulic fluids which may otherwise lead
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to breakdowns and shorten the life
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of the valves. Please maintain the
degree of contamination within NAS 1638-Grade
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Duecaution must be paid to maintaining
12. Use 25 μm or finer line filter.
Water containing fluidsSynthetic fluidsetroleum base oils
Use water-glycol fluid.Use phosphate
ester or polyol ester fluid.Use fluids equivalent to ISO VG32 or VG46.