C.E. Niehoff & Co. N1126-1 Installation
C. E. Niehoff & Co
.
BRUSHLESS ALTERNATORS
N1126-1 Alternator/N3034 Regulator
OEM Wiring Connections
Installation Instructions
CAUTION
Install N1126-1 alternator as shown in Figure 1:
CAUTION
alternator mounting bracket on engine. Failure to do so
can result in broken mounting feet or broken upper
mounting bracket.
Hardened washer
This symbol is used to indicate
presence of hazards that can cause
minor property damage.
Slip bushing located in rear mounting
foot must be securely tightened against
0.625 - 18 Locknut
torque to 136 Nm/100 lb.ft.
12mm/0.50 in. Mounting bolt
Hardened washers
TT
T
TT
T
TT
TT
TT
T
TT
12mm/0.50 Locknut –
torque to 80 Nm/60 lb. ft.
TT
TT
T
1. Units are shipped with shaft collar, hardened
washer and locknut. Remove and discard shaft
collar. Install pulley and furnished hardened
washer. Torque locknut to 136 Nm/ 100 lb. ft.
2. Use hardened washers between aluminum surfaces
and bolt heads and nuts. Torque mounting bolts to
80 Nm/60 lb. ft.
3. All cabling, wiring or conduit must be supported
within 305 mm/12 in. of termination on alternator.
4. Choose wire gauge for B+ and B– cables capable of
handling maximum alternator output with minimum
voltage drop.
B– terminal
0.25-20 locknut –
torque to 9 Nm/80 lb. in.
TT
T
TT
TT
T
TT
B+ terminal
0.3125-18 locknut –
torque to
9 Nm/80 lb. in.
TT
T
TT
TT
T
TT
TT
T
TT
12mm/0.50 in.
mounting bolt
(full length)
Hardened
washer
Alternator
mounting
bracket
on engine
TT
T
TT
TT
TT
T
T
TT
TT
T
TT
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TT
T
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Bracket
on engine
TT
Slip bushing must be tightened against
bracket — see “CAUTION” above
Figure 1 - N1126-1 Alternator Installation Details
Customer cables
w/terminal boots
T
TT
TT
12mm/0.50 Locknut –
torque to
80 Nm/60 lb. ft.
Hardened washer
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
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