English
— 12 —
Filter element
Air intake fi lter
Fig. 13
NOTE: Replace the fi lter element when it becomes dirty.
2. Draining tank
  Drain tank daily or after 4 hours of use. Open drain cock 
and tilt compressor to empty accumulated water (Refer 
to Fig. 12).
3.  Oil change-oil topping off 
CAUTION:  Overfi lling with oil will cause premature 
compressor failure. Do not overfi ll.
4. Maintenance chart:
MAINTENANCE CHART
PROCEDURE AFTER USE  DAILY WEEKLY 200 HOURS
Check pump oil level
×
Oil leak inspection
×
Drain condensation in air tank(s)
××
Inspect guards/covers
×
Check for unusual noise/vibration
×
Check for air leaks
×
Clean exterior of compressor
×
Inspect air intake fi lter
×
Check safety valve
×
Change pump oil
×
Replace fi lter
×
Drain the fuel tank and carburetor when the compressor is not in use more than 30 days.
As regards the engine, follow instructions in the engine manual.
(1) Within the fi rst 50 hours of operation, completely replace 
the oil of the pumping element. Unfasten the pump oil 
cock on the crankcase, drain all the oil, and screw the 
cock back on (Refer to Fig. 1 and to Fig. 14).
Pump oil cock
Fig. 14
  Pour oil into the hole of the crankcase to the level 
indicated on the oil sight glass (Refer to Fig. 8).
  For oil replacement, follow the oil type chart (refer to 
page 8).
(2)  Check the oil level of the pumping element daily.
(3) Change the oil every 200 working hours or every 3 
months
SERVICE AND REPAIRS
All quality compressors will eventually require servicing or replacement of parts because of wear and tear from normal use. To 
assure that only authorized genuine replacement parts will be used, all service and repairs must be performed by a HITACHI 
AUTHORIZED SERVICE CENTER, only.
NOTE:  Specifi cations are subject to change without any obligation on the part of the HITACHI.
000BookEC2610Elowes.indb12000BookEC2610Elowes.indb12 2018/03/0910:24:532018/03/0910:24:53