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TM
(1) Make sure that service conditions are as specified in [3. Principal Specificat
ions] in this manual.
When the oil filter is used in a hydraulic system, its selection according to
system pressure setting may turn out to be wrong in that the pressure actually
imparted to the filter may be higher than the set level.
In the case of use in a hydraulic circuit that undergoes continuous pressure
variations, consider, not system pressure setting but circuit peak pressure,
to be maximum service pressure.
(2) Starting with a low flow rate, introduce hydraulic oil into the oil filter up
to the specified flow rate.
(3) Check the housing for abnormal noise or vibrations. If any abnormality is
detected, stop the pump immediately and check for the cause.
９ ． Ｍ Ａ Ｉ Ｎ Ｔ Ｅ Ｎ Ａ Ｎ Ｃ Ｅ
Ａ Ｎ Ｄ
Ｃ Ｈ Ｅ Ｃ Ｋ
9-1. Daily Check
(1) Check the filter element for clogging periodically through differential
pressure indicator.
(2) If the oil filter has no indicator connected to it, check the oil being
filtered on a scheduled basis and replace the filter element according to
the degree of decline in filtration effect shown by the oil. Continued use of
a clogged filter element causes the relief valve to open to let contaminants
flow out of the oil filter, resulting in a malfunctioning system.
(3) For filter paper elements, semiyearly replacement is recommended to maintain
their performance, regardless of condition.
9-2. Replacement
Ｃａｕｔｉｏｎ
* Stop the hydraulic unit and ascertain that the filter pressure is zero
before replacing the oil filter.
* Keep the oil filter away from anything flammable during replacement work.
(1) Stop the hydraulic unit, and after ascertaining that the filter pressure is
zero, remove the drain plug⑨ to let remaining oil out of the housing in its
entirety.
(2) Using the case② bottom ,hang a wrench and remove the case② from a body① .
Pull down lightly the filter element③ to remove.
(3) Cleaning makes wire gauze wire filter elements reusable.
See [9-3 Cleaning Filter Element] for details.
In the case of filter paper element, replace it with a new one.
(4) Replace the "O"rings④ ,⑤ ,⑩ and the backup ring⑥ with new ones.
Inspect the faces of seal aren't wounded injured, and the inside aren't
became dirty. If the condition are unwell,repair it.
The "O"ring⑤ is relatively easy to slip off. Install new "O"ring carefully
in the mating groove.
(6) assemble parts in the reverse order of removal.
Recommended Drain Plug Tightening Torques： 30N・ m
Summary of Contents for TM
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