C.E. Niehoff & Co. C820, A9-454 Instructions
A9-454 Resistor / Wire Assembly
C. E. Niehoff & Co.
BRUSHLESS ALTERNATORS
Kit includes one resistor/wire assembly to replace only one side.
To replace both sides, two kits must be ordered and installed.
Shown below -
inside drive end housing with top cover removed.
Cable tie
for C820 Alternators Drive-end Housing
Replacement Instructions
Kit also includes splice
connector and sleeve for
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new SCR control connection
(see step 7 and Figure 1a)
Left Side
Resistor/wire
assembly
(4 wire
connections)
To replace LEFT
or RIGHT side
resistor/wire
assembly:
1. Separate SCR control
connection.
2. Disconnect wiring
at soldered terminals.
3. Remove existing resistor
assembly. Clean out old
epoxy per epoxy manufacturer’s
instructions.
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Right Side
Resistor/wire
assembly
(4 wire
connections)
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Figure 1 - A9-454
Resistor/Wire
Assembly
Replacement
4 Secure new resistor assembly in place
of old assembly using 2-part epoxy as
recommended by epoxy manufacturer.
5. Right side connection only - trim excess wire
lengths as needed.
6. Solder 3 new connections to 3 SCR terminals shown (on left or right side).
7. Slide new sleeve on one SCR control connection wire. Insert ends of 3 wires into splice
connector. Crimp splice and fill with solder.
Slide sleeve over splice. Secure wires with
cable tie to complete connection.
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
Lead from
left side
assembly
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Figure 1a - Detail of SCR Control Connection
Sleeve
from kit
Splice
connector
from kit
Û
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Red “B” Lead
from
regulator
harness
Lead from
right side
assembly
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II0007APage 1 of 1
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