C.E. Niehoff & Co. N1307/N1307-1 Alternators Installation User Manual
N1307 alternator w/ remote-mounted regulator
II0100A
Page 1 of 1
N1307-1 Alternator w/ N3109 Regulator
—or—
N1307 Alternator
w/ Remote-Mounted Regulator
Installation Instructions
This symbol is used to indicate
presence of hazards that can cause
minor property damage.
CAUTION
Install alternator as shown in Figure 1:
Slip bushing located in rear mounting
foot must be securely tightened against
alternator mounting bracket on engine.
Failure to do so can result in broken
mounting feet or broken upper mounting
bracket.
Figure 1 - N1307/N1307-1 Alternator Installation Details
CAUTION
1. Units are shipped with shaft collar, washer, and
locknut. Remove shaft collar. Install pulley speci-
fied by customer, washer, and locknut. Torque
locknut to 163 Nm/ 120 lb. ft.
2. Use hardened washers between aluminum surfaces
and bolt heads and nuts. Torque mounting bolts as
shown in Figure 1.
3. All cabling, wiring or conduit must be supported
within 305 mm/12 in. of termination on alternator.
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
B+ terminal (see inset above)
T
T
T
T
T
B– terminal (either side)
5/16-18 UNC 2A Bolt –
torque to 9 Nm/82 lb. in.
T
T
T
T
T
12mm/0.50 Locknut –
torque to
95 Nm/70 lb. ft.
T T T T T
Hardened washer
T T T T T
Slip bushing must be tightened against
bracket — see “CAUTION” above
T T T T T
12mm/0.50 in.
mounting bolt
(full length)
TTTTT
Hardened
washer
TTTTT
Alternator mounting
bracket on engine
T
T
T
T
T
Vehicle harness
connection
T T T T T
Bracket
on engine
3/4-16 UNF 3B Locknut
and hardened washer—
torque to 163 Nm/120 lb.ft.
T T T T T
T T T T T
3/8” Mounting bolt,
grade 5 or higher
Hardened washers
T T T T T
TTTTT
T
T
T
T
T
3/8” Locknut –
torque to 38 Nm/29 lb. ft.
Customer B+ output
cable terminal
T T T T T
T T T T T
T T T T T TTTTT
Lock washer
Washer
1/2-13 UNC 2A Bolt –
torque to 32 Nm/23.5 lb. ft.
T
T
T
T
T
Alternator B+ terminal
4. Choose wire gauge for B+ and B– cables capable of
handling maximum alternator output with minimum
voltage drop.
5. N1307-1: N3109 regulator was shipped as factory-
installed on original alternator. If alternator was
replaced, re-install regulator on alternator and
torque mounting hardware to 3.4 Nm/30 lb. in.
N1307 with remote-mounted regulator: Install
regulator as specified by customer.