9. MAINTENANCE
74
● Before servicing the compressor, carefully read “1. SAFETY PRECAUTIONS” again.
● Before servicing, be sure to disconnect the power of the compressor. Failing to do so may cause
electric shock or other accident.
● Before removing or disassembling a part or component of the compressor, make sure that the
internal pressure has dropped to an atmospheric pressure. Otherwise, compressed air may gush out
of the compressor when a bolt, pipe, or any other part is removed, leading to an accident.
On a daily basis, fill out the OPERATION RECORD
LOGBOOK (
Section 14) with the operating data
and conditions of the air compressor. If the data
deviates from the benchmark in the logbook, service
the air compressor or call the local HITACHI
distributor/master dealer or representative office for
service.
Drain the condensate on a daily basis and
observe other daily operating instructions (
page
75 and 78).
Overhauling consists of changing the existing
airend with a new replacement airend.
Overhaul the air compressor at 6 years.
9.1 Periodical maintenance of Air compressor
①
The standards indicate normal maintenance schedule.
If your compressor is in sever environmental or
operating conditions, service it at more frequent
intervals.
The maintenance schedule differs between 4,000 or
less operating hours per year and 8,000 hours. If your
compressor is in severe (high-humid, dusty, etc.)
conditions, however, always follow the maintenance
schedule for 8,000 operating hours per year.
② Any of the maintenance intervals is not a warranty
period.
③ If any abnormality is detected during inspection,
replace the part.
④ Do not neglect a yearly maintenance schedule as it
is most important from a preventive maintenance
standpoint.
⑤ Use HITACHI genuine parts for replacement.
CAUTION
1
Daily Operation Control
2
Maintenance at Periodic Intervals
3
Overhauling
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