9. MAINTENANCE [How to Service the Air Compressor]
84
●
Change the oil regularly, as instructed in the
standard maintenance schedule (
page
75 to 78). Neglecting to change the oil
causes oil deterioration that could result in
clogging of the oil strainer and a fire.
●
Be sure to use the recommended lubricating
oil on page 10. Absolutely DO NOT mix
different types of lubricating oil.
●
Overfilling with lubricating oil may increase
shaft power and result in rise in oil temperature.
■
Oil drain
①
Stop the air compressor and disconnect the power.
Remove the front door [Ref. No. 904], left door [Ref.
No. 912] and rear panel (1) [Ref. No. 967]
②
Remove the plug
⑤
for oil air vent.
③
Remove the plugs of oil drain ports
①②③
. Place oil
pans under the oil drain ports
①②③
. Open the
drain valve
①②③
. The dimension of oil pan is
approximately 3 × 10 × 14 inches (75 × 250 × 350 mm).
④
Place the oil pan under the oil drain port
④
.
Remove the plug
④
to drain the oil.
⑤
Replace all lubricating oil annually. Also once a year,
remove the oil port cover and wipe the sludge off of
the bottom of the gear case with a sponge and clean.
⑥
Close oil drain valves
①②③
. Tighten removed
plugs with seal tape to oil drain ports
①②③④⑤
and oil air vent.
■
Oil filling
⑦
Fill the oil case with oil. Open the oil plug of the oil
case and pour new oil until the oil level reaches the
upper red line of the gauge. (Do not exceed the
yellow line when the oil is initially charged.)
■
Check/refilling
⑧
Turn on the power, press the
START
button and
turn the compressor off 5 – 6 seconds later.
⑨
Check the oil level on the oil level gauge. The oil
level drops when lubricating oil flows to the piping,
oil cooler and case jacket (air-cooled type only).
⑩
Turn off the power and add oil from the oil supply port.
⑪
After refilling is complete, close the oil plug tightly.
⑫
Turn the power back on, press the
START
button
and make sure the oil level is between the upper and
lower red lines of the oil level gauge.
⑬
Make sure no oil leaks from the oil drain valve and
plugs.
Hole for waste oil hose
(Oil drain hose is not supplied
with the compressor.)
Plug
⑤
(Oil air vent)
Oil pan
Left door
Front door
Air-Cooled
Air-cooled type
Oil drain valve
③
(For draining oil cooler)
Rear panel (1)
Air-cooled type
Plug
③
Air-Cooled
Air-Cooled
Oil drain valve
①
(For draining oil casing)
Oil casing
Oil pan
Oil port
Oil filter
Plug
④
Oil filter
drain port
Oil port cover
Oil drain valve
②
(For draining oil casing)
Plug
①
Plug
②
Inspection
port cover
Open
Close
Open
Close
Yellow
line
Oil level gauge
WARNING
4
Lubricating oil Replacement (Annually)
