C.E. Niehoff & Co. C524, C524-1, C524-3, C524-4, A2-334 Installation

C524 and C524-1, -3, -4

Alternators

Installation Instructions

Install alternator as shown in Figure 1:

1. Units are shipped with shaft collar, disc spring
washer and nut. Remove and discard shaft collar.
Install pulley and furnished disc spring washer.
Torque locknut to 135 Nm/ 100 lb. ft.

2. Install alternator on pad mount per vehicle manu­facturer’s instructions, including hardware specifi­cations and torque.

3. All cabling, wiring or conduit must be supported
within 305 mm/12 in. of termination on alternator.

Regulator IGN terminal;

torque to 4.5 Nm/40 lb. in.



4. Choose wire gauge for B+ and B– cables capable of
handling maximum alternator output with minimum
voltage drop.

5. C524; Install regulator as specified by customer.

C524-1/C524-3: A2-334 regulator was shipped as

factory-installed on original alternator. If alternator
was replaced, re-install regulator on alternator and
torque mounting screws to 8.5 Nm/75 lb. in.

C524-4: Install A2-335 regulator as specified by

customer.

Regulator P terminal;

torque to 4.5 Nm/40 lb. in.

B+ terminal

M10x1.5 Bolt –

torque to 15 Nm/11 lb. ft.





B– terminal

M8x1.25 Bolt –

torque to 10.8 Nm/8 lb. ft.



M20x1.5 Nut

torque to 135 Nm/100 lb. ft.





Disc spring washer

Figure 1—C524 Alternator w/A2-334 Regulator (shown) Installation Details

C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline [phone]

Page 1 of 1

II0126B