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HYDRAULIC OIL CONTAMINATION CONTROL
⚫
The required cleanliness for hyd, oil of a breaker is ※NAS 9 class level.
⚫
When you have questions on the hyd, oil contamination, consult with our designated
distributors.
※NAS(National Aerospace Standard Committee)1638
This is the international norm for hyd, oil contamination.
CAUTION
I
f the hydraulic oil is contaminated, it causes operating failures not only to the breaker but
also to the excavator. It leads to damages of internal parts. So the oil contamination control
is very important.
Replace the hydraulic oil within the change interval. Clean the inside of hydraulic tank,
cylinders and piping when replacing the oil. Also check the oil condition when changing the
filter elements.
Summary of Contents for TNB-08M
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