OEC 9800C-Arm, Service Manual, Page: 380 / 490

Replacement
Left Side Cover
WARNING : Removing the left side cover exposes dangerous AC line voltages on the Power/Signal
Interface PCB, Power Supply PS1, Power Supply PS2, Column Power Supply PS3,
power transformers T2 and T3, and motor start capacitor C5 and motor phase-shifting
capacitor C13. Disconnect Workstation from AC line before touching any of these
assemblies.
You must remove the left side cover before you can remove the front leg cover. Follow these steps to remove the left side cover:
1. Make certain Workstation’s AC power plug is disconnected from AC outlet.
2. Turn off battery breaker.
3. If hand control or footswitch are connected, unplug them and set them aside.
4. Remove Front cover, Right Side cover, and Rear cover as described previously.
5. Loosen three screws that secure front edge of Left Side cover to C-Arm.
6. Lift Left Side cover away from generator.
7. Using great care to avoid electric shock, make certain there is no residual charge on high energy electrolytic capacitors. If
you have not already done so, use a VOM to check voltage on capacitor bus bars. If any charge is present, connect a 300k,
half-watt resistor across capacitor bus bars to discharge capacitors.
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Service Periodic Maintenance Contents Schematics Illustrated Parts Installation