C.E. Niehoff & Co. C625 Alternator Installation - Manual

II218A 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.
2. All cabling, wiring, or conduit must be supported
within 305 mm/12 in. of termination
on alternator.
Figure 1 - Alternator Installation Details
CAUTION
Hardened washer
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. Regulator is furnished on OEM units and is
supplied separately by request with aftermarket
units. Mounting screws on regulator should be
torqued to 8.5 Nm/75 lb. in. If regulator is to be
remote-mounted, see separate instructions packed
with extended wiring harness.
5. Make electrical connections to CEN regulator as
required, using proper ring terminals (follow vehicle
manufacturer’s diagram and separate instructions
packed with extended wiring harness when used):
a. Make sure alternator-to-regulator harness is
plugged securely in regulator receptacle.
b. A2-214 regulator has P and D+ terminals with
M6 studs and an IGN terminal with an M5 stud.
Torque terminal nuts to 4.5 Nm/ 40 lb. in.
• P terminal can tap AC voltage, typically half
the charge voltage. When required, connect
P terminal to tachometer or relay.
• 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.
M12/0.50 Locknut
(2 places) – torque 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)
M10 x 1.5 –
torque to 15 Nm/11 lb. ft.
M12 x 1.75 bolt –
torque to 32 Nm/24 lb. ft.
Washer
Battery output
cable terminal
Lockwasher
Insulator
Alternator B+
Terminal Stud
C625
Alternator
Installation Instructions
Bracket mount
M10 - 1.5
21.6/0.85 deep
(2 places)