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5.2.8
Removal/Replacement of a Power Distribution Board
5.2.9
Removal/Replacement of a 21V Power Supply Board
Revised Dec-2013
To replace the battery, align the unit so that the negative battery
5.
terminal is oriented to the top and right as illustrated in Figure 2-
15 and place the battery into the battery mounting bracket
(battery clamp must be in the released position.
Raise the battery clamp and rotate it forward until you can lower
6.
it to secure the rechargeable lead-acid battery. Tighten the two
11/32" nuts on the ends of the battery clamp.
7.
Replace the power cables to the battery terminals (black/NEG,
Red/POS).
Apply power and test the unit.
8.
Use this procedure to remove or replace the optional power distribution
board.
1.
If the EFM is running, place any critical control processes under
manual control and shut down the unit by disconnecting power
from the SCM.
Unplug wiring harnesses from power distribution board
2.
connectors TB1 through TB6. Label or otherwise identify them
so you can easily re-connect them later.
Slide the power distribution board toward the front of the unit
3.
and remove it from its snap track holder.
4.
To replace the power distribution board, slide it into its snap
track holder. Replace wiring harness connectors TB1 through
TB6.
Apply power and test the unit.
5.
Use this procedure to remove or replace the optional 21V power supply
board.
1.
If the EFM is running, place any critical control processes under
manual control and shut down the unit by disconnecting power
from the SCM.
Unplug wiring harnesses from 21V power supply board
2.
connectors TB1 and TB2.
3.
Slide the 21V power supply board toward the front of the unit and
remove it from its snap track holder.
4.
To replace the 21V power supply board, slide it into its snap track
holder. Replace wiring harness connectors TB1 and TB2.
Apply power and test the unit.
5.
Service & Troubleshooting
ControlWave EFM Instruction Manual
5-9
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Table of Contents
Troubleshooting
