GE Compax 40CE, System Service Manual

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System Service Manual − SYSTEM COMPAX 40E, CE Marked
GE HEALTHCARE with MPH 50/65/80 (including XT, RS 85 and Tomo − Link)
REV 9 DIRECTION 2154260 − 100
1
CHAPTER 1 − PRELIMINARIES
SECTION 1
INTRODUCTION
1-1 Safety
ALL SERVICE OR SPARES REPLACEMENT ON THIS SYSTEM MUST BE
CARRIED OUT BY QUALIFIED TECHNICIANS ONLY. FOLLOW THE
DIRECTIONS IN THIS MANUAL CAREFULLY.
PREVENTION OF IONIZING RADIATION
− It is mandatory to wear a film badge .
− Remain as little time as possible in or near of an X − ray field.
− When working near X − rays, it is mandatory to wear a lead (Pb) apron.
− The kV and mA setting values must be as low as possible.
− The X − ray field setting must be as low as possible (a beam limiter must be used).
− The operator must stand as far away as possible from the X − ray beam .
PREVENTION OF ELECTRICAL HAZARDS
− Do not open electrical cabinets if power supply is on.
− Do not disconnect a ground wire.
− Before disconnecting HV cables, discharge them with a voltage divider.
− Be careful of capacitors which may be charged (specially those HV units).
PREVENTION OF ACCIDENTS CAUSED BY MOVING PARTS
When adjusting mechanical sub − assemblies, be careful of:
− movements starting up.
− transmission parts (chain, gears, ....).
EQUIPMENT PROTECTION
To avoid accidental damage to the equipment, it is mandatory to cut the electric power supply before:
− connecting or disconnecting a printed board or a connector.
− connecting or disconnecting a test probe.