8.3 Typical Maintenance Standard (B) of Air Compressor…In case of annual run hour less than 3,000 hours
Maintenance part and item Check
Inspection time
Note
Reference
page No.
Daily
1-Month
1-Year 2-Year 4-Year 8-Year
Oil level gauge
Oil level check
○
Oil level must be within red lines during operation. 20
Discharge temp.
Discharge temp. check
○
Must be between 65℃ and 100℃.18
Relief valve
Performance check
○
Check by hand. 45
Lubricant (genuine synthetic oil)
Replenish/
Analysis
○
Replenish every 1,000 to 1,500 hours
Sampling analysis every 3,000 hours
20,21
Mechanical seal
Oil leak check
○
If the oil leak is 3 cc/h or higher, replace the seal
even before 8-year (24,000 hours) operation.
Motor Greasing
○
Use “RMS Grease” 52
Motor's cooling fin Cleaning 52
Grease Reservoir Cleaning
○
Clean once for every 2 grease replenishments. 52
Air intake filter element Replacement
○
Clean if the error code of an element clogging
appears on the digital monitor. Replace whenever
the number of times of cleaning has reached 5
times even within two year interval.
47
Lubricant (genuine synthetic oil)
Replacement
○
21
Oil filter element Replacement
●
46
Oil level gauge Replacement
●
Oil separator element Replacement
●
Replace the housing and square ring as well. 50
Solenoid valve
Performance check
●
Cooling fans
Crack check/Cleaning
●
DCBL controller cooling fan
Crack check/Cleaning
●
Clean cooling fins and duct. 53
Fan inverter
Crack check/Cleaning
●
Motor
Crack check/Cleaning
●
1M ohm or more at DC500 V Mega.
Electric panel, instruments, sensors
Inspection/Cleaning
●
Terminal refastening, electric line cover check and cleaning.
Pipe joints Loose check
●
Oil cooler, Aftercooler Cleaning
●
Oil port O-ring, plug O-ring Replacement
●
Oil temperature control valve
Inspection/Cleaning
●
Change O-ring.
Consumable Parts
Suction throttle valve ※
Replacement
●
Replace the cap seal, valve plate, and O-ring. Clean.
DCBL controller cooling fan Replacement
●
Including cooling fan in the starter/control box.
Fan motor bearing Replacement
●
If not so, clean it and continue to use it.
Piston of minimum pressure valve / check valve ※
Replacement
●
Replace check valve spring, O-ring at the same time.
49
Coupling elastic body Replacement
●
If not so, clean it and continue to use it.
Thermistor Inspection
●
Oil temperature control valve Replacement
●
Suction pipe Replacement
●
Check valve (1/4 inch) Replacement
●
Locate it on the oil-scavenging pipe from the shaft seal.
O-ring (Air end) Replacement
●
O-ring (Flange) Replacement
●
O-ring, oil separator tank Replacement
●
Replace 1/2 stop valve O-ring at the same time.
DCBL motor bearing
Replacement
●
Mechanical seal Replacement
●
Compressor Air end bearing Replacement
●
Controller smoothing capacitor
Replacement
●
CPU printed circuit board,
power PCB
Check/Clean/Replace
●
If it is dirty or shows a change in color, replace it.
If not so, clean it and continue to use it.
Fan inverter Replacement
●
※ Replace these parts every 4 calendar years or when the
SCREW has loaded/unloaded total 1,000,000 times,
whichever comes earlier. For the total load/unload times, watch the digital monitor.
44
8. PERIODIC MAINTENANCE [Maintenance Standards (B)]
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