Hitachi DSP-45AT6N, Instruction Manual

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9. MAINTENANCE [Standard Maintenance Schedule]
Maintenance Schedule A
(for 8,000 hours/year or less operation)
Follow this schedule (A) if the MAINT.SCHEDULE : A appears on the LCD monitor.
○●
… Replace
△○
… Complete service in house
△▲
… Clean or check
▲●
… Ask your distributor to service
9.2 Standard Maintenance Schedule
Part or Item Action Category Type Remarks
Air intake fitter Replace
○
Fixed / V
Oil filter (secondary) – Pressure Check
△
Fixed / V Replace as required.
Control line filter – Condensate Clean
△
Fixed
Strainer – Aftercooler/ Intercooler condensate drain Clean
△
Fixed / V
Oil strainer (primary) Clean
▲
Fixed / V Clean as required.
Aftercooler/ Intercooler/ Oil cooler (air side) Check / Clean
▲
Fixed / V Clean as required.
Hi-Precooler Check / Clean
▲
Fixed / V Clean as required. (Air-cooled 125psi (0.86)MPa type)
Blowoff solenoid valve - Operation Check
▲
Fixed / V
Check valve - Leakage Check
▲
Fixed / V
Air relief valve - Operation Check
▲
Fixed / V
1
Daily and 3-month Schedule
(for 8,000 hours/year or less operation)
2
Bi-Annual Schedule
(for 8,000 hours/year or less operation)
Part or Item Action
Category
Type Remarks
Dally
Every
3 months
LCD indications Check
△
Fixed / V Record data in the
OPERATION RECORD LOGBOOK.
Oil level Check
△
Fixed / V Add as required
Aftercooler/ Intercooler - Condensate Drain
△
Fixed / V
Control line filter - Condensate Check
△
Fixed
Main motor greasing –
△
Fixed / V Fixed speed type: both DE / NDE side, Vtype: DE side
3
Annual and 3-Year Schedule
(for 8,000 hours/year or less operation)
Part or Item Action
Category
Type Remarks
1-year 3-year
Lubricating oil Replace
○
Fixed / V
Joints, Bolts, Nuts Tighten / Check
△
Fixed / V
Air intake filter Replace
○
Fixed / V
Oil filter (secondary) Replace
○
Fixed / V
Gasket - Inter/aftercooler condensate strainer Replace
○
Fixed / V
O ring - Inter/aftercooler condensate strainer Replace
○
Fixed / V
Oil strainer (primary) Clean
▲
Fixed / V
Consumable parts - Suction throttle valve Replace
●
Fixed
Seal washer - Suction throttle valve Replace
●
Fixed
Seal gasket - Suction throttle valve Replace
●
Fixed
Thermistor, Pressure sensor, PCB other Electric parts Check
▲
Fixed / V Change any operating parts in need replacement.
Cooling fan
Check for crack
/ Clean
▲
Fixed / V
Contoller fan (1), DCBL controller
Check for crack
/ Clean
▲
V Clean the fin and duct
Cooling fan for fan inverter
Check for crack
/ Clean
▲
Fixed Clean the fin (Air-cooled type)