Cleaning Of Oil Strainer (Primary) – (Bi-Annually); Replacement Of Oil Filter (Secondary) (Annually); Vtype; Fixed-Speed Type - Hitachi NEXT Series Instruction Manual

Cleaning of Oil Strainer (Primary) – (Bi-Annually)
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Oil Strainer
Strainer cover
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Replacement of Oil Filter (Secondary) (Annually)

Oil Pan
9. MAINTENANCE [How to Service the Air Compressor]
Oil Filter
① Stop the air compressor and disconnect the power.
② Open oil drain valve ① (see previous page) and
drain the lubricating oil from the oil casing.
③ Remove the strainer cover, remove the oil strainer
and clean it.
④ For overhauling, replace the oil strainer.
IMPORTANT
Clogging of the oil strainer drops the oil pressure of the air
compressor.

Vtype

●
If the oil pressure sensor detects an oil pressure as low
as 12 psi (0.08 MPa) or lower for operation frequency
45 Hz or higher, or 6 psi (0.04 MPa) for operation
frequency less than 45Hz, the air compressor
automatically shutdowns.

Fixed-speed type

●
If oil pressure sensor detects an oil pressure as low as
12 psi (0.08 MPa) or lower.
① Stop the air compressor and disconnect the power.
② Drain the lubricating oil from inside the compressor
in accordance with previous page.
③ Place a pan under the oil filter.
④ Remove the element using a filter wrench.
⑤ Apply clean oil onto the filter O-ring. Tighten the oil
filter until the O-ring surface comes in contact with
the oil filter seating surface.
⑥ Seat the oil filter O-ring by tightening the filter with
both hands. Immediately after the air compressor
restart verify that there is no leaks on the oil filter.
IMPORTANT
Clogging of the oil filter drops the oil pressure of the air
compressor.
Vtype
●
If oil pressure sensor detects an oil pressure as low as
12 psi (0.08 MPa) or lower for operation frequency 45 Hz
or higher, or 6 psi (0.04 MPa) for operation frequency
less than 45Hz, the air compressor automatically
shutdowns.
Fixed-speed type
●
If oil pressure sensor detects oil pressure as low as 12
psi (0.08 MPa) or lower, the air compressor automatically
shutdowns.
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