Exide Technologies Section 94.20 - Manual (Page 67)

SERVICING THE AT10.1
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Replacing the positive scaling resistor (R4)
Locate the scaling resistor R4 on TB5 on the back of the front panel, just
above the control circuit board. The resistor (R4 is the one on the left) is
mounted on two quick-connect terminals. Remove the resistor by
grasping the terminals by the plastic insulation, and pulling out and
downward. Install the replacement resistor by pushing the terminals
firmly onto the quick-connect blades on the terminal block.
Replacing the voltage crowbar resistor (R6)
Locate the resistor R6 on TB5 on the back of the front panel, just above
the control circuit board. The resistor (R6 is the one on the right) is
mounted on two quick-connect terminals. Remove the resistor by
grasping the terminals by the plastic insulation, and pulling out and
downward. Install the replacement resistor by pushing the terminals
firmly onto the quick-connect blades on the terminal block.
Replacing the negative scaling resistor (R14)
Turn off and remove all power to the AT10.1. Remove the plexiglas
safety shield. Disconnect the battery from the output terminals TB1(+/-).
The scaling resistor R14 is connected to TB(-) with a ring lug. The other
lead of the resistor is soldered to wire # 20.
Remove the insulating sleeving from the soldered joint to wire # 20 (you
may have to remove a harness tie) and cut the resistor lead near the solder
joint. Disconnect the lugged-end of R14 from TB1(-) and discard the old
resistor.
Using a soldering iron no larger than 35 Watts, solder the bare lead of the
new R14 to wire # 20. Insulate the joint with plastic electrical tape. Crimp
a similar ring lug to the other lead of the new resistor. Connect the lugged
end of the new scaling resistor R14 to TB1(-).