C.E. Niehoff & Co. C633-1 Alternator/A2-355 Regulator Installation - Manual (Page 2)

Page 2 of 3 II185B
Regulator – “+14V”terminal
(unused for 28V only)
A2-355 Regulator
Nut, 5/16-18 UNC-2B;
torque to 5.6 Nm / 50 lb.in.
Washer
Nut, 1/4-20; torque to
3.4 Nm / 30 lb.in.
Washer
Regulator – “IGN” Terminal
Vehicle harness
Regulator – “AC” Terminal
Locknut, #10-24; torque to 3.4 Nm / 30 lb.in.
Washer
SINGLE VOLTAGE (28 V) applications (see other side for dual voltage):
1. Connect as shown on this page.
Figure 2 – A2-355 Regulator Single Voltage Wiring Connections
Regulator connector
Phase
connector cap
C633-1
Alternator
Terminal on
Vehicle “B+” lead
Lock Washer
Washer
.3750-16 UNC-2B;
torque to
15 Nm / 11 lb.ft.
Figure 2b – Positive Terminal Connections
+28 V B+ Bolt
on alternator
Washer
Lock Washer
.3125-18 UNC-2A;
torque to 9 Nm / 80 lb.in.
Ground Bolt
on alternator
Terminal on
vehicle ground lead
Figure 2c – Ground Terminal Connections