Transcription of Troubleshooting, Diagnostics - Prestolite Electric
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7585 Empire Drive | Florence, KY 41042 | (800) 354-0560 | 2/09 Technical Service ManualService Manualfor the 12 Diode 4000 Series AlternatorTroubleshooting, Diagnostics and of Charging System Failure3 Alternator Disassembly4 Negative Rectifier Ring Removal5 Postive Rectifier Ring Removal6 Front Bearing Removal6 Rear Bearing Removal7 Alternator Diagnostic / Component Testing7 positive Rectifier Test7 Negative Rectifier Test9 Alternator Field Test10 Rotor Test11 Brush Inspection12 Stator Test12 Regulator Test13 Alternator Re-assembly Instructions14 Front bearing Installation14 Rotor Installation14 Rear Bearing Installation15 Rear Bearing Seal Installation15 Regulator / Brushbox Assembly Instructions16 positive Rectifier Installation17 Negative Rectifier Installation18 Stator Installation18 Alternator Final Re-assembly19 Parts Diagram20 Table of Contents3 Description:The 4000 series alternators are air cooled, belt driven units designed for heavy duty diesel engine units feature an integral/external voltage regulators, fully enclosed brushes, built-in rectifier assemblies with solid lead frame and extra large heat sinks, a dynamically balanced rotor, and heavy duty stator and bearings.
6 www.prestolite.com Positive Rectifier Ring Removal Step 1: Remove hardware. See Fig 1 Step 2: Flip alternator housing and remove hardware. Remove output studs. See Fig 2.
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