C.E. Niehoff & Co. C326 Installation User Manual
C326 alternator
II168A
Page 1 of 1
C326 Alternator
Installation Instructions
This symbol is used to indicate
presence of hazards that can cause
minor property damage.
CAUTION
Install C326 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 - C326 Alternator Installation Details
CAUTION
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 88 Nm/65 lb. ft. Nuts, bolts,
etc. must be SAE Grade 5 minmum.
3. All cabling, wiring or conduit must be support-
ed 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.
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
B+ terminal stacking order:
M10x1.5 bolt – torque to 15 Nm/11 lb. ft.
Belleville washer
Flat washer
Vehicle output cable terminal
B– terminal stacking order:
M8x1.25 bolt – torque to
10.8 Nm/8 lb. ft.
Belleville washer
Flat washer
Vehicle output cable
M12 Locknut –
torque to
88 Nm/65 lb. ft.
Hardened washer
Slip bushing must be tightened against
bracket — see “CAUTION” above
M16x1.5 Locknut
torque to 136 Nm/100 lb.ft.
Belleville washer
Bracket
on engine
Flat washer
Use full length M12 mounting bolt
and hardened washer through bracket.
Torque to 88 Nm/65 lb. ft.
Use M12 mounting bolt, hardened
washer on each side, and nut
through bracket (3 places).
Torque to 88 Nm/65 lb. ft.
Regulator mounting screws
(2 places) – torque to
8.5 Nm/75 lb. in.