C.E. Niehoff & Co. N1225/N1387 Alternator Installation - Manual (Page 2)

II225A
Page 2 of 2

Regulator – “+14V”terminal

Regulator

Nut, 5/16-18 UNC-2B;
torque to 5.6 Nm / 50 lb.in.
Washer


Nut, 1/4-20; torque to
2.8 Nm / 25 lb.in.
Washer
Regulator – “IGN” Terminal
Boots (p/n N9464,
supplied in
envelope assembly)
Vehicle harness 
Regulator – “AC” Terminal

Locknut, #10-24;
torque to 2.3 Nm / 20 lb.in.
Washer 




Alternator
SINGLE VOLTAGE (28 V) applications (see other side for dual voltage):
2. Connect as shown on this page in Figures 2a-c.
Figure 2a – Regulator Single Voltage Wiring Connections

Terminal on
Vehicle “B+” lead
Lock Washer
Washer  
Figure 2b – Positive Terminal Connections

+28 V B+ Bolt
on alternator


Washer
Lock Washer


Ground Bolt
on alternator
Terminal on
vehicle ground lead

Figure 2c – Ground Terminal Connections

Screw 10-32 UNF-2A;
torque to 3.4 Nm / 30 lb. in.

Regulator con-
nector

Phase
connector cap

Lockwasher


.3750-16 UNC-2B;
torque to
15 Nm / 11 lb.ft.
.3125-18 UNC-2A;
torque to 9 Nm / 80 lb.in.
If you have questions about your alternator or any of these instructions, or if you need to locate a Factory Authorized Service Dealer, please contact us at:
C. E. Niehoff & Co.• 2021 Lee Street • Evanston, IL 60202 USA
TEL: 800.643.4633 USA and Canada • TEL: 847.866.6030 outside USA and Canada • FAX: 847.492.1242
E-mail us at [email protected]