Hitachi DSP-45AT6N, Service Manual

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13
3. MAINTENANCE
3.1 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
Part or Item Action Category Type Remarks
Air intake fi tter
Replace
○
Fixed / V
Oil fi lter (secondary) – Pressure
Check
△
Fixed / V Replace as required.
Control line fi lter – 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 fi lter - 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 fi lter
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
Oil fi lter (secondary)
Replace
●
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 fi n and duct
Cooling fan for fan inverter
Check for crack
/ Clean
▲
Fixed Clean the fi n (Air-cooled type)