C.E. Niehoff & Co. C629 Alternator Installation - Manual

II220A Page 1 of 2
This symbol is used to indicate
presence of hazards that can cause
minor property damage.
CAUTION
1. 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.
a. Use hardened washers between aluminum
surfaces and bolt heads and nuts.
b. OEM units are shipped with pulley, flat
washer, and locknut installed.
c. Aftermarket units are shipped with shaft
collar, flat washer, and locknut installed.
Remove and discard shaft collar. Install
pulley and furnished flat washer. Torque
locknut to 163 Nm/120 lb. ft.
d. Follow vehicle manufacturer’s
recommendations for belt tension.
Figure 1 - Alternator Installation Details
CAUTION
Hardened washer
2. All cabling, wiring, or conduit must be supported
within 305 mm/12 in. of termination on alternator.
3. Choose wire gauge capable of handling maximum
alternator output with no more than 0.4 V drop
on each leg from alternator to battery.
4. A2-216 regulator is furnished on OEM units and
is supplied separately by request with aftermarket
units.
5. Make electrical connections to CEN regulator as
required, using proper ring terminals:
a. Make sure alternator-to-regulator harness is
plugged securely in regulator receptacle.
b. A2-216 regulator has D+ terminal with M6
stud and an IGN terminal with an M5 stud.
Torque terminal nuts to 4.5 Nm/ 40 lb. in.
• D+ terminal can provide 28 VDC sense
voltage to multiplex controller. Maximum
current from D+ can be no more than
5 amps. When required, connect D+
terminal to controller through a relay.
The relay coil must be diode protected
and rated for proper voltage.
T orque mounting
hardware to
88 Nm/65 lb. ft.
Slip bushing in rear mounting foot
must be tightened against bracket —
see “CAUTION” above
Bracket
on engine
B– terminal bolt (on left side)
0.3125-18 UNC-2A –
torque to 9 Nm/80 lb. in.
0.3750-16 bolt –
torque to 15 Nm/11 lb. ft.
Washer
Battery output
cable terminal
Lockwasher
Insulator
Alternator B+ Terminal Stud
C629
Alternator
Installation Instructions
0.3750-16 UNC-2B top mounting:
Threaded insert, self-locking
#10-32 regulator mounting screw,
lock washer, and flat washer
(2 places) –
torque to 3.4 Nm/30 lb. in.
0.2500-28 UNF-2A regulator mounting screw
and lock washer on top of regulator mounting
foot; spacer between regulator mounting foot
and alternator – torque to 8.5 Nm/75 lb. in.