II0151A
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C714 Alternator
OEM Installation Instructions
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of hazards that can cause minor property
damage.
This symbol indicates special instructions
on installation, operation or maintenance
that are important but not related to
personal injury hazards.
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 c an result
in broken mounting feet or broken
upper mounting bracket.
On some applications, when install-
ing a C714 in place of a C712 or
similar unit, the installation may
require some modifications of the
existing mounting to accommodate
the new alternator.
a. Use hardened washers between aluminum
surfaces and bolt heads and nuts.
b. Units are shipped with pulley, Belleville washer,
and nut installed and torqued to proper value.
Figure 1 - C714 Alternator Installation Details
CAUTION
Hardened washer
2. A2-155 regulator is furnished on OEM units. Regula-
tor is flat-temperature compensated and is factory-set
at lowest setting to accommodate maintenance (8D)
batteries. For other batteries, change voltage selector
switch position on bottom of regulator. See Table 1.
M12/0.50 Locknut –
torque to
88 Nm/65 lb. ft.
Slip bushing must be tightened against
bracket — see “CAUTION” above
Bracket
on engine
B– terminal bolt M10 x 1.5 (2 places)–
torque to 15 Nm/11 lb. ft.
M12 x1.75 bolt –
torque to 32 Nm/24 lb. ft.
Washer
Battery
output
cable
terminal
Lock washer
Insulator
Alternator B+
Terminal Stud
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
NOTICE
NOTICE
A2-155
Regulator
Table 1 – Voltage Select Switch Position
4 Voltage Setpoints
Position 1 14.0 V
Position 2 14.4 V
Position 3 14.8 V
Position 4 15.5 V
Battery Type
Maintenance (D Category)
Maintenance-Free (Group 31)*
Maintenance-Free (Group 31)*
Battery Isolator setpoint
*Group 31 batteries: If boiling or excessive gassing occurs with
higher voltage setpoint (position 3), change to lower voltage
setpoint (position 2).
3. If removed in step 2, re-install regulator on anti-drive
end housing. Torque mounting screws to 8.5 Nm/75 lb. in.
4. A2-155 regulator connections:
• Makesurealternator-to-regulatorharnessis
securely plugged into regulator.
• ConnectIGNterminaltoignitionsourcethrough
existing switch. Torque M5 terminal nut on
regulator to 4.5 Nm/40 lb. in.
• ConnectPterminaltotachometerorrelay.
PterminaltapsACvoltage,typicallyhalfthe
charge voltage. Torque M6 terminal nut on
regulator to 4.5 Nm/40 lb. in.
5. All cabling, wiring or conduit must be supported
within 305 mm/12 in. of termination on alternator.
6. Choosewiregaugecapableofhandlingmaximum
alternator output with no more than 0.2 V drop on
each leg from alternator to battery.
7. Follow vehicle manufacturer’s recommendations for
belt tension.
(2 pages)
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