117
All Units
Printed in U.S.A. SEPTEMBER 2009
COPYRIGHT 2009, Heil Environmental
ALTERNATOR “R” STATOR TERMINAL CORROSION PROTECTION
The “R” stator terminal on alternators can become corroded which is caused by oxygen in the
atmosphere combining with impurities on the surface of the exposed conductor. This corrosion can
interfere with the alternator’s RPM signal which adversely affects the EOS (electronic overspeed switch)
performance.
To prevent corrosion, apply a sealant to the terminal to prevent oxygen in the atmosphere from coming in
contact with the conductor.
There are two main types of connections on the “R” stator terminal and each one requires a different
sealant.
1. 3/8” female stud type connector – Use Dipit as a sealant.
2. Molded pin plug – Use an antioxidant grease as a sealant.
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