C.E. Niehoff & Co. N1610-1 Installation - Manual

Boots (2)
II0160A
Page 1 of 2
N1610-1 Alternator / N3247 Regulator
Installation Instructions
28/14 V or 28 V
Wiring Connections
Locknut, 0.250-20;
torque to 3.4 Nm / 30 lb.in.
Washer
Regulator - AC terminal
Vehicle
harness
Regulator - IGN terminal
28/14 V applications
(see other side for 28 V):
Connect as shown on this page.
Figure 1a - N3247 Regulator Wiring Connections
Figure 1- N1610-1 Alternator
Lock washer
Figure 1b - B+ and B– Terminal Connections
AC connector
Locknut, #10-24;
torque to 3.4 Nm / 30 lb.in.
Washer
B+ connections on alternator
Bolt, 0.3750-16 UNC-2A; torque to 20 Nm / 15 lb.ft. when securing positive cable of suitable size for output power. Both
positive cables must be connected together at battery positive potential when alternator is installed in vehicle and during
operation. Cable as shown must be used as part of vehicle cabling.
Washer
Interconnect
cable
Positive cable from vehicle
B+ output terminals
Lock washer
Washer
Positive cable
from vehicle
B– connections on alternator
Bolt, 0.3125-18 UNC-2A; torque to
9 Nm/80 lb. in. when securing B– cable
of suitable size for output power. Both
ground cables must be connected to
vehicle’s common ground using inter-
connect cable B– plus cable of suitable
size as part of vehicle cabling when
alternator is installed in vehicle and
during operation.
Secure alternator mounting
lug to vehicle using hardware
specifi ed by vehicle manufac-
turer and torque suffi cient to
withstand weight of alternator.
Secure alternator mounting
lugs to vehicle using hardware
specifi ed by vehicle manufac-
turer and torque suffi cient to
withstand weight of alternator.
Vehicle
harness
Lock Washer
Washer
MS21245-L12 nut;
torque to 163 Nm/
120 lb. ft. when
installing drive pulley.
Washer
Boot
Washer
Nut, 0.312-18 UNC-2B;
torque to 5.6 Nm / 50 lb.in.
Regulator - 14 V terminal
J1939 connector
Alternator connector