C.E. Niehoff & Co. N1509-2 Alternator Installation - Manual

II0040A
Page 1 of 2
N1509-2 Alternator / N3207 Regulator
Installation Instructions
C. E. Niehoff & Co.
BRUSHLESS ALTERNATORS
28 V B+ terminal connection “RED”
to 28 V battery positive terminal
When replacing N1509-1 and N1509-2 alternators
(see other side when replacing N1506-1 alternators):
1. Remove boot covering AC terminal on regulator.
2. Connect wiring as shown in Figures 1a, 1b, and 1c.
Figure 1a – N1509-1 and N1509-2 Wiring Connections
Terminal and
Vehicle “B+” lead
➛
Washer
➛
Nut, .25-20;
torque to
7.3 Nm / 65 lb.in.
Figure 1b – Ground Terminal Connections
➛
+28 V/14 V Positive
Terminal
on alternator
➛
Washer
Lockwasher
➛
Ground Terminal
Bolt .3125-18-
torque to
9 Nm/80 lb. in.
Terminal on
vehicle ground lead
➛
Figure 1c – Positive Terminal Connections
➛
14 V B+ terminal connection “YELLOW”
to 14 V battery positive terminal
28 V B– terminal connection
to 28 V battery negative terminal
28 V B– terminal connection
to chassis ground
Energize terminal connection
to vehicle energize circuit—
torque to 3.4 Nm/30 lb.in.
AC terminal connection
to vehicle AC circuit
(remove boot on regulator
and connect cabling) —
torque to 3.4 Nm/30 lb.in.