2202L5JE-DA-C5-N_2015.05.
5 Maintenance and Inspection
Compound 2-stage Screw Compressor 5.2 Maintenance and Inspection List
1612LSC Speed Increaser Type
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
Item Inspection interval and Content Remarks
Pressure gauges/
pressure sensors
Yearly inspection
Thermometers/
temperature sensors
Yearly inspection
Protection devices and
safety valves
Yearly inspection
Suction strainer Inspect after 500 hours from the start
of operation.
If the differential pressure between
the front and back of the suction
strainer increases, check and clean
the suction strainer.
Yearly inspection and cleaning
Lubricating oil Analyze lubricating oil after 500 hours
from the start of operation.
Replace the oil if the analysis result
does not satisfy the control criteria
given in Section 4.1.5.
Analyze oil every 6 months.
Oil filter element Yearly replacement Replace the filter element if the
differential pressure between the
inlet and outlet ports of the oil filter
exceeds 0.1 MPa.
Cooling water side of oil
cooler
Yearly inspection Clean if excessively contaminated.
Cooling water side of
condenser
Yearly inspection Clean if excessively contaminated.
Mechanical seal 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.
Coupling Inspection every year or every 8000
hours of operation Note*
Note*: Inspect the machine per period or operating hours, whichever comes first.
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