C.E. Niehoff & Co. N1234-1 Alternator Installation - Manual

II0012A Page 1 of 1
N1234-1 Alternator / N3121 Regulator
Installation Instructions
C. E. Niehoff & Co.
BRUSHLESS ALTERNATORS
OEM Wiring Connections
Ы
Ы
Nut, 0.2500 - 20;
torque to 2.8 Nm / 25 lb.in.
Washer
Regulator - ENERGIZE terminal
Boots
Vehicle harness
Û
Regulator - AC terminal
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Connector cap
Ы
Ы
Ы
Ы
Ы
N1234-1
Alternator
Make connections as shown
on this page.
5A
2A
Figure 1a - N3121 Regulator Wiring Connections
Figure 1- N1234-1 Alternator
Û
Terminal on
Vehicle “B+” lead
Û
Washer
Lockwasher
Û
Nut, 0.3750-16;
torque to
1.69 Nm / 15 lb.in.
Û
Figure 1b - Positive Terminal Connections
Û
Positive terminal on alternator
Ы
Ы Washer
Lockwasher
Û
Nut, 0.3125-18 UNC-2A;
torque to 1.13 Nm / 10 lb.in.
Ы
Ы
Ground terminal
on alternator
Terminal on
vehicle ground lead
Û
Figure 1c - Ground Terminal Connections
Û
If this ignition lead (568)
is provided, remove it
and install supplied
connector cap to
lead connector
(568A) as shown
to prevent exposure
to environment
Û
Regulator
connector
568
Locknut, #10-24;
torque to 2.3 Nm / 20 lb.in.
568A
Û
Washer
Û
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
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Fuselink
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Insulator
Û
Washer