Installation Manual

24 Noise Reduction Techniques
10.3 Alternator
This type of interference is characterized by a high-pitched whine which varies with engine speed. A
0.5 µF coaxial capacitor (Motorola Part No. 0882571B01) can be used to bypass the whine. For
generators, the capacitors is connected in the armature lead. Never use a capacitor in the field lead.
Use the field suppressor assembly supplied in the TLN5277 Noise Reduction Kit. For alternators, the
capacitor is connected in the lead to the battery post (see
Figures 10-2 and 10-3).
Figure 10-2. Generator Whine Suppression
Figure 10-3. Alternator Whine Suppression
Step 1.
Mount Capacitor
(0.5 F Coaxial Type)
under generator ground screw.
Step 3.
Connect wire lead to capacitor
using lockwasher and nut.
Step 4.
Connect capacitor
lead to armature post.
Caution:
Do not connect
capacitor to field teminal.
Step 2.
Disconnect wire (dashed)
from armature post and
connect to capacitor using
lockwasher and nut.
FL0830310-O
Step 1.
Mount Capacitor to
(0.5 F Coaxial Type)
under alternator
ground screw.
Step 2.
Disconnect wire from
battery post and connect
to capacitor using
lockwasher and nut.
Step 3.
Connect wire lead to capacitor
using lockwasher and nut.
Step 4.
Connect capacitor
lead to battery post.
Caution:
Do not connect
capacitor to field terminal.
FL0830311-O