
TABLE OF CONTENTS B-70265EN/02
c-2
3.3.4 Check for Leakage within the Oscillator ...............................................................47
3.3.5 Locating Internal Leakage......................................................................................47
3.3.6 Discharge Aging.....................................................................................................49
3.3.7 Oscillation Characteristics .....................................................................................50
3.3.8 Discharge Margin Check........................................................................................50
3.3.9 Power Supply Margin Check (Pulse Check)..........................................................51
3.3.10 Beam Mode Check.................................................................................................51
3.4 PREPARATION PRIOR TO SHIPMENT ..................................................... 54
3.4.1 Packing for Transportation.....................................................................................54
3.4.2 Removing Cooling Water.......................................................................................55
4 MAINTENANCE ................................................................................... 57
4.1 DAILY INSPECTION ................................................................................... 58
4.2 PERIODIC MAINTENANCE ........................................................................ 59
4.3 DETAILS OF MAINTENANCE..................................................................... 60
4.3.1 Turbo Blower Oil ...................................................................................................60
4.3.1.1 Check method .................................................................................................... 60
4.3.1.2 Replacement method.......................................................................................... 60
4.3.2 Exhaust Pump Oil...................................................................................................62
4.3.2.1 Check method .................................................................................................... 62
4.3.2.2 Replacement method.......................................................................................... 62
4.3.3 Exhaust Pump Filter...............................................................................................63
4.3.3.1 Replacement method.......................................................................................... 63
4.4 MAINTENANCE PARTS.............................................................................. 64
5 TROUBLESHOOTING .........................................................................70
5.1 TROUBLESHOOTING PROCEDURE......................................................... 71
5.2 RESPONDING TO ALARM MESSAGES ON THE SCREEN...................... 72
5.3 MAJOR FAULTS ......................................................................................... 95
5.3.1 Laser Power Supply Alarm Display.......................................................................95
5.3.2 Power Supply Cannot Be Switched Off Using CRT/MDI Switch.........................96
5.3.3 Power Supply Cannot Be Switched On Using CRT/MDI Switch .........................96
5.3.4 Laser Output Just after Switch On Is Low.............................................................96
5.3.5 Display of Fluctuating Laser Output on CRT ........................................................97
5.3.6 Circuit Breaker for Cooling Fan, Solenoid Valve, and Stabilized Power Supply
Trips ......................................................................................................................97
5.3.7 Electromagnetic Contactor of Exhaust Pump Trips Thermally .............................97
5.3.8 Main Breaker Trips ................................................................................................98
5.3.9 Excessive Laser Gas Consumption ........................................................................98