2202MYJE-MY-C8-N_2018.02.
Chapter 5 Maintenance and Inspection
Compound 2-stage Screw Compressor 3225**C 5.2 Maintenance and Inspection List
5-5
5.2.2 Periodic Inspection
Conduct inspection for the following items according to the specified intervals.
In addition, observe relevant laws and regulations on the inspections and recording of the results that
are provided for other related items such as any safety devices (e.g. gas leak detectors), or other utility
(gas/electricity) protection devices that constitute the cooling package unit together with the
compressor.
Table 5-3 Periodic Inspection Items
Inspection interval and Content
Pressure gauge/pressure
sensor
Thermometer/temperature
sensor
Protection devices and
safety valves
Inspection after 500 hours of initial
operation
Perform inspection and cleaning if
the differential pressure across the
suction strainer is high.
Yearly inspection and cleaning
Analyze the oil after 500 hours of
initial operation
Replace the oil if the analysis result
does not satisfy the control criteria
given in Section 4.1.5 "Lubricating
oil Management Criteria".
Analyze the Oil every six months
When the differential pressure
between the inlet and outlet ports of
the oil filter exceeds 0.1 MPa,
replace the filter element.
Cooling water side of the
oil cooler
Clean it if it is heavily contaminated.
Cooling water side of the
condenser
Clean it if it is heavily contaminated.
Inspection every year or every
8000 hours of operation Note*
To be replaced if any abnormality is
found.
If it is difficult to stop equipment
except for scheduled inspections,
replace the part at each inspection.
Inspection every year or every
8000 hours of operation Note*
Note*: The inspection shall be performed according to the operating period or operating hours,
whichever comes first.
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