C.E. Niehoff & Co. 100 User Manual

C. E. Niehoff & Co
.
BRUSHLESS ALTERNATORS
Series 100 Alternators
Voltage Regulator Upgrade
Installation Instructions
CAUTION
This symbol is used in these instruc-
tions to indicate presence of hazards that will or can cause minor personal injury or property damage.
100 Series – A1-115, A1-125, A1-126, A1-127, A1-150, A1-151, A1-160, A1-161, A1-163, A1-164, A1-165 C127, C166
N1028, N1029, N1030, N1034, N1035, N1041, N1042, N1043, N1046, N1051, N1052, N1053, N1055, N1056, N1058, N1059, N1060, N1061, N1062, N1063, N1065, N1066, N1067, N1068, N1071, N1072, N1074, N1087,

N1088
, N3035, N7083


,

1. Remove alternator cover and existing voltage
regulator. Also remove heat sink from front of alternator.
2. From rear of alternator, feed non-crimped end of
new green wire through slot near R terminal on new regulator.
A1-165 and N1088 — green jumper wire is not required. Connect black E lead from shell E terminal to R terminal of new regula­tor. Y terminal connection is not used.
3. Cut wire to proper length. Install sleeve, strip
wire, then crimp and solder larger terminal to end of wire.
4. Re-install heat sink, connect new green wire to phase terminal closest to output terminal. Do not attach this wire to phase terminal with more than two wires already attached.
5. Install new regulator on alternator and finish wiring as shown in Figure 1.
6. At rear of alternator, attach new green wire to back of R terminal.
7. On INSIDE of alternator cover, use supplied template (II0005A) to cut new opening in cover:
a) Drill 1/8” pilot hole, then 9/16” hole.
b) Deburr new hole to prevent damaging
new switch on new circuit board.
8. Re-install alternator cover.
Voltage Select Switch Position
A2-436 and A2-437 Regulators Position 1 13.8 V Position 2 14.2 V Position 3 14.6 V Position 4 14.6 V
Voltage Selector Switch
A2-436 regulator with light terminal –
Light Relay
L Terminal
(brown wire)
R Terminal
(new green wire)
Field – Terminal
(white wire)
B+ Terminal
(red wire)
B– Terminal
Y Terminal
(brown wire)
CAUTION
to touch alternator cover upon reassembly. Replace existing terminal with smaller terminal included in package. Install sleeve, then crimp and solder smaller terminal to wire.
Do not allow Y terminal
Figure 1 - Series 100 Wiring
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
(white wire)
II0004BPage 1 of 1
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