24
4.4 Cleaning of Oil Strainer (Primary Side) (Bi-Annually)
① Drain the lubricating oil in the procedure described
in page 23.
② Remove the front door (1) [Ref. No. 904] and left
door [Ref. No. 991].
③ Remove the strainer cover. Then remove the oil
strainer and clean it.
④ Replace the oil strainer when overhauling the air
compressor.
Oil Strainer
Strainer cover
① Drain the lubricating oil in the procedure described
in page 23.
② Remove the left door [Ref. No. 991] and left panel
[Ref. No. 910].
③ Place an oil pan under the oil filter.
④ Use a filter wrench to loosen and remove the oil
filter from the oil support on the gear case. Remove
and replace the oil filter element.
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.
Pan
(Prepare a pan with a size of
approx. 20 x 100 x 250 mm)
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 (0.08MPa) or lower for operation frequency 110
Hz or higher, or 6 psi (0.04MPa) for operation
frequency less than 110Hz, the air compressor
automatically shutdowns.
● Fixed speed type
If oil pressure sensor detects oil pressure as low as 12
psi (0.08MPa) or lower, the air compressor automatica
lly shutdowns.
IMPORTANT
4.5 Replacement of Oil Filter (Secondary Side) (Annually)
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 (0.08MPa) or lower for operation frequency
110 Hz or higher, or 6 psi (0.04MPa) for operation
frequency less than 110Hz, the air compressor
automatically shutdowns.
● Fixed-speed type
If oil pressure sensor detects an oil pressure as low as
12 psi (0.08MPa) or lower, the air compressor
automatically shutdowns.
IMPORTANT
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