C.E. Niehoff & Co. C803D: A9-321 Voltage Filter Installation - Manual

II212A
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C803D: A9-321 Alternator Voltage Filter
Assembly
Installation Instructions
Figure 1 – C803D Alternator with A9-321 Assembly Installed
TURN OFF
BATTERY DISCONNECT SWITCH
BEFORE PROCEEDING
1. From B+ terminal on alternator, remove and save
hardware for reassembly.
2. Remove and save one screw from B+ output stud
(see Figure 1). Clean off any residue from screw
and screw hole.
Black lead from A9-321 assembly
connected to screw from Step 2
C. E. Niehoff & Co. • 2021 Lee Street • Evanston, IL 60202 Tech Services Hotline 800-643-4633
3. See Figure 2. Connect leads of A9-321 assembly:
• Red lead to B+ terminal as shown in stacking
order. Torque terminal nut to 30 Nm/22 lb. ft.
• Black lead to screw on B+ output stud (ref.
step 2). Use a suitable adhesive such as
Loctite® 222 on screw. Follow manufacturer’s
instructions. Torque to 4 Nm/35 lb. in.
4. Using cable ties, securely support the assembly to
the vehicle B+ cable as shown in Figure 1.
Cable ties
A9-321 alternator
voltage fi lter
assembly
B+ cable
from vehicle
Figure 2 – A9-321 Alternator Voltage Filter Assembly Stacking Order
B+ bolt
Lock washer
Red lead from
A9-321 assembly
Flat washer
Insulator
B+ cable terminal
Black lead from
A9-321 assembly
Screw
Red lead from A9-321 assembly
(see Figure 2)