Alpha Technologies CFR 3000, CFR 3000RM - Manual (Page 69)

63 5 Maintenance
5.4 Replacing the Internal Batteries (Continued)
Tools and Materials Required:
• Phillips Screwdriver.
• 7
/
16
and 3
/
8
inch wrenches for the battery connectors.
• DC Voltmeter.
Step 1: Remove the Front Panel and the Cover
Procedure:
1 Switch off the Input and Battery circuit breakers.
2 Do not disconnect the unit from line power (See Step 2).
3 Disconnect all loads.
4 If an external battery pack is connected, disconnect it.
5 Loosen the two Phillips screws on the front panel.
6 Carefully pull the lower part of the front panel away
from the unit and then lift it up and away.
TIP: The display panel is attached to this panel. Do
not damage or disconnect the ribbon cable con-
necting it to the unit.
7 Unscrew the five screws on each side of
the cover.
8 Lift the cover upward and away from the
chassis.
DANGER: Make sure the cover does
not touch the batteries or any internal
components.
Panel and Cover Removal Finished