Servicing the at10.1 – Exide Technologies Section 94.20 User Manual
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SERVICING THE AT10.1
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Replacing the dc surge suppressor (VR1)
Turn off and remove all power to the AT10.1. Remove the plexiglas
safety shield. Disconnect the battery from the output terminals TB1(+/-).
Remove the hardware from the output terminal TB1(+), and remove the
lead of the dc surge suppressor. Install one lead of the replacement surge
suppressor. Replace the other wires and the hardware. Repeat for the
output terminal TB1(-). Tighten all hardware.
NOTE: The surge suppressor is not polarized.
Replacing the dc surge suppressor networks (VR6/C4, VR7/C5)
Replace these networks as assemblies; do not replace individual parts.
Turn off and remove all power to the AT10.1. Remove the plexiglas
safety shield. Disconnect the battery from the output terminals TB1(+/-).
To replace the network VR6/C4, remove the hardware from the output
terminal TB1(-), and remove the lead of the network. Cut the plastic wire
ties holding the assembly tight against the I/O panel. Install one lead of
the replacement network. Replace the other wires and the hardware.
Repeat for the other lead of the network on the ground terminal. For the
VR7/C5 network, use the above procedure, but start with the lead on
TB1(+). Tighten all hardware. Replace cut wire ties if possible.
NOTE: The surge suppressor networks are not polarized.
Replacing the power (ballast) resistor (R3)
Turn off and remove all power to the AT10.1. Remove the plexiglas
safety shield. Disconnect the battery from the output terminals TB1(+/-).
Locate the power resistor R3 behind the I/O panel. In 12 & 24 Vdc units,
R3 is installed at the top right corner of the I/O panel. In 48 Vdc units, R3
is mounted on the bracket behind the I/O panel. In 130 Vdc units, R3 is
comprised of an assembly of two (2) resistors connected in series,
mounted to the bracket behind the I/O panel.
Disconnect the lead of R3 connected to TB1(+), and replace it with the
corresponding lead of the replacement power resistor. Remove the other
lead of R3 from terminal E17 on the I/O panel and replace it with the
remaining lead of the replacement power resistor. Tighten all hardware.
In 12 & 24 Vdc units, tuck the new R3 behind the I/O panel so that the
leads are properly spaced. In 48 & 130 Vdc AT10.1s, remove the screws
that mount the old resistor(s) to the bracket, and replace with the new
resistor(s). Tighten all mounting hardware and restart the AT10.1
For further instructions, refe