5
REMOVING ELECTRICAL POWER
Any time service is being performed on the F900 AC power must be removed to the system. Perform the system
shutdown sequence on the system before removing power to the system.
Make sure the main breakers at the facility site are in their OFF position before preceding to remove any
el
ectrical panels.
Any time service is being performed on the F900 system, especially the electrical panel where high voltage
po
wer is present, the incoming power should be locked out to prevent someone else from inadvertently
energizing the electrical system.
When line voltage is removed from the system, a UPS (Uninterruptible Power Supply) is designed to provide
po
wer to some components in the of the system. Make sure to manually turn off the UPS when servicing the
system.
Procedure
1. Shut down the system and turn Off the power.
2. Rotate the power in disconnect switch counterclockwise to the Off position.
•
If access to the electrical panel is required, turn and remove the key from the disconnect box,
t
hen insert it into the access door lock and turn key to open.
• Once the key is removed from the disconnect box, the Power disconnect switch cannot be
r
otated to an ON position. Since the key is still in the vicinity as it is attached proceed to step 3
below to lockout the printer’s power.
Warning: Make sure AC power is removed from the system. Voltage of 230VAC
is present and can be lethal.
Warning: Make sure the UPS is manually turned off and not powering
components in the system.
Note: The key is on a retractable cord to prevent its removal from the printer.
Note: The key cannot be removed from the electrical panel unless both doors
are shut correctly and locked.
Note: Printers with serial number < L1000 do not include a key. Make sure that
the power-in disconnect is rotated to the OFF position and locked out if access to
the electrical panel is required.
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