71
9. MAINTAINING THE DSP [Standard Maintenance Schedule]
Description Maintenance
Classification
Model/Type Remarks
Oil Replace
○
Fixed/VSD
8,000h or 2 years whichever comes earlier.
Joints, Bolts, Nuts Tighten/Check
△
Fixed/VSD
Air Intake Filter Replace
○
Fixed/VSD
Oil Filter (secondary side)
Check oil press.
△
Fixed/VSD Replace if necessary.
Oil Strainer (first side) Clean
△
Fixed/VSD
Thermister, Pressure sensor, PCB, other Electric ports
Check
▲
Fixed/VSD Replace parts if failure found.
Aftercooler Drain Pipe Orifice Check/Clean
▲
Fixed/VSD
Intercooler Drain Pipe Orifice & Check Valve
Check/Clean
▲
Fixed/VSD
Aftercooler Check/Clean
▲
Fixed/VSD
Intercooler Check/Clean
▲
Fixed/VSD
Oil Cooler Check/Clean
▲
Fixed/VSD
Blow-off air cooler Check/Clean
▲
Fixed/VSD
Purge air solenoid (For purge and anti-reverse rotation in electrical outage)
Check
▲
VSD only Replace parts if failure found.
Demister Check/Clean
▲
Fixed/VSD
Airend Casing Jacket Check/Clean
▲
Fixed/VSD
3-way Solenoid Valve, Drain Solenoid Valve, Capacity Control Device
Check
▲
Fixed Speed only
Replace if necessary.
Safety Valve Check/Clean
▲
Fixed/VSD
Protection, Safety Device Check
▲
Fixed/VSD Replace parts if failure found.
Motor Check
▲
Fixed/VSD Measure insulation resistance and clean.
Description Maintenance
Classification
Model/Type Remarks
Motor bearing Replace
●
Fixed/VSD
Air End Assembly Replace
●
Fixed/VSD Replace by overhauled Air End Ass’y.
Bearing – Gear Case Replace
●
Fixed/VSD
Demister Replace
●
Fixed/VSD
3-way Solenoid Valve Replace
●
Fixed Speed only
Oil Strainer (first side) Replace
●
Fixed/VSD
Motor Shaft Seal parts Check/Clean
▲
Fixed/VSD
Temperature Control Valve Replace
●
Fixed/VSD
Oil Level Gauge Replace
●
Fixed/VSD
Battery Replace
●
Fixed/VSD
Smoothing Capacity for VFD Replace
●
VSD only
Control Line Filter Replace
●
Fixed Speed only
Description Maintenance
Classification
Model/Type Remarks
Oil Filter (secondary side) Replace
○
Fixed/VSD
Control Line Filter Element Replace
○
Fixed Speed only
Blow-off Valve Sheet Gasket Replace
●
Fixed Speed only
※
Suction Throttle Valve Seal Gasket Replace
●
Fixed Speed only
※
Purge air solenoid (For purge and anti-reverse rotation in electrical outage)
Replace
●
VSD only
Check Valve Replace
●
Fixed/VSD
Oil Pump Oil Seal Replace
●
Fixed/VSD
Oil Pump Bearing Replace
●
Fixed/VSD
Drain Discharge Solenoid Valve Replace
●
Fixed/VSD
Check Valve for dranage & control air pipng Replace
●
Fixed/VSD
Intercooler Drain Pipe Strainer Replace
●
Fixed/VSD
VFD (Variable Frequency) Check
▲
VSD only
Cooling Capacity for VFD Replace
●
VSD only Clean if necessary.
※NOTE: Replace every two years if you are using a power save operation.
3
Annual Schedule
(for yearly 4,000-or-less operating hours)
4
3-Year Schedule
(for yearly 4,000-or-less operating hours)
5
6-Year Schedule: Overhauling
(for yearly 4,000-or-less operating hours)
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