Service And Repairs - Hitachi EC99S Instruction Manual And Safety Instructions

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. 8).
3. Oil change-oil topping off
CAUTION: Overfi lling with oil will cause premature
compressor failure. Do not overfi ll.
(1) Within the fi rst 50 hours of operation, completely replace
the oil of the pumping element. Unfasten the oil drain cap
on the carter cover, drain all the oil, and screw the cap
back on (Refer to Fig. 1 and to Fig. 10)
Drain cap
Fig. 10
4. Maintenance chart:
PROCEDURE
Check pump oil level
Oil leak inspection
Drain condensation in air tanks
Inspect guards/covers
Check for unusual noise/vibration
Check for air leaks
Clean exterior of compressor
Inspect fi lter
Check safety valve
Change pump oil
Replace fi lter

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 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.
OIL TYPE
SAE 5W50 SYNTHETIC OIL (-20° +120°F)
SAE 15W40 MULTI-GRADED OIL (+5° +104°F)
(2) Check the oil level of the pumping elemt every 50
(3) Change the oil every 300 working hours or every 6
MAINTENANCE CHART
AFTER USE DAILY
×
× ×
×
×
×
×
— 13 —
Pour oil into the hole of the dipstick.
To the level indicated on the dipstick (Refer to Fig.5).
For oil replacement, follow the table below.
For both summer and winter use
For warm weather use only
hours or once a week.
months
WEEKLY
×
×
×
English
300 HOURS
×
×