Disconnect the compressor from the
power source and remove the compressed
air from the air tank before performing the
compressor to cool before performing the
1. Cleaning the intake filter
Remove the intake filter (Refer to Fig. 1) every 50 hours or once
a week and clean the inside of the intake filter and the filter
element with compressed air (Fig. 12). Use a phillips screwdriver
to disassemble intake filter.
Never clean filtering element with a
flammable liquid or solvent.
Do not operate without the intake filter.
Replace the filter 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. 10).
3. Oil change-oil topping off
Overfilling with oil will cause premature
compressor failure. Do not overfill.
(1) Within the first 50 hours of operation, completely replace the oil
of the pumping element. Unfasten the oil drain cap on the casing
cover, drain all the oil, and screw the cap back on (Refer to Fig.1
and to Fig.13).
Pour oil into the hole of the dipstick.
To the level indicated on the dipstick (Refer to Fig.6).
For oil replacement, follow the table below.
SAE 5W50 SYNTHETIC OIL (-20° + 120°F)
For both summer and winter use
SAE 10W40 MULTI-GRADED OIL (+50° +120°F)
For warm weather use only
(2) Check the oil level of the pumping elemt every 50 hours or once
(3) Change the oil every 300 working hours or every 6 months.
SERVICE AND REPAIRS
All quality compressors will eventually require servicing or
replacement of parts because of wear from normal use.
To assure that only authorized replacement parts will be used, all
service and repairs must be performed by a HITACHI AUTHORIZED
SERVICE CENTER, only.
Specifications are subject to change without any obligation
on the part of the HITACHI.