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Bosch T1 Alternator User Manual

Bosch T1 Alternator
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Repair and Testing Instructions for T1 Page 1
Alternator 0120 689 552 Edition 001
All rights rest with Robert Bosch Corp, including patent rights. All rights of use of reproduction and publication rest with R. B. Corp.
UA/ASV 04.12.98 T1ALTFinal.DOC
Repair and Testing
Instructions for
T1 Alternator
0120 689 552

Table of Contents

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Bosch T1 Alternator Specifications

General IconGeneral
BrandBosch
ModelT1 Alternator
CategoryIndustrial Equipment
LanguageEnglish

Summary

General Information

Safety Precautions

Special Tool Usage

Use only specified tools for repairs to avoid damage and injury.

Fire Risk

Capacitors retain charge; discharge may ignite combustible liquids.

Skin Protection

Use protective gloves or creams for oils/greases and wash hands after work.

Compressed Air

Use compressed air regulated to 4 Bar (60 PSI) for cleaning parts.

Explosion Risk

Avoid fire, flames, sparks; dry parts thoroughly to prevent gas explosions.

Specifications

Electrical Test Specifications

Defines electrical parameters like resistance, voltage, and current for testing.

Mechanical Test Specifications

Details mechanical tolerances such as air gap, eccentricity, and brush projection.

Tightening Torques

Specifies torque values for various fasteners during assembly and disassembly.

Alternator Schematic

Alternator Coding

Parts Cleaning

Tools, Test Equipment Lubricants and Adhesives

Test Equipment

Lists essential test equipment required for alternator diagnostics and repair.

Special Tools

Details specialized tools needed for specific alternator disassembly and assembly procedures.

Lubricants and Adhesives

Lists required lubricants and adhesives for alternator maintenance and repair.

Lubricant Quantities

Specifies the precise amounts of grease and lubricants for key components.

Exploded View

Alternator Disassembly and Testing

Rear Cover Removal

Procedure for removing the rear cover of the alternator.

Voltage Regulator Removal

Steps to safely remove the voltage regulator from the collector ring end shield.

Brush Replacement

Detailed instructions for measuring and replacing worn carbon brushes.

Noise Suppression Capacitor Testing and Removal

Procedure for testing and removing the noise suppression capacitor.

Pulley and Fan Removal

Method for removing the pulley and fan from the alternator shaft.

Separation of Drive Shield and Collector End Shield

Steps to separate the drive end shield from the collector end shield.

Rectifier Assembly Testing

Tests to verify the functionality of the rectifier assembly.

Removal and Testing of Stator Assembly

Procedure for removing and testing the stator assembly's resistance and insulation.

Rectifier Assembly Removal

Steps for the removal of the rectifier assembly from the collector end shield.

Dampening Resistor Testing and Removal

Procedure for testing and removing the dampening resistor incorporated in the W terminal.

Removal of Collector End Shield Bearing and Seal

Instructions for removing the bearing and seal from the collector end shield.

Removal of Sliding Bushing in Collector End Shield

Steps to press out the sliding bushing from the collector end shield.

Removal of Rotor from Drive End Shield

Procedure for pressing the rotor out of the drive end shield.

Removal of Bearing and Seal from Drive End Shield

Instructions for removing the bearing and seal from the drive end shield.

Removal of Collector Ring End Inner Bearing Race from Rotor

Steps to remove the inner bearing race from the rotor shaft.

Rotor Inspection

Tests for rotor resistance, insulation, and concentricity.

Collector Ring Replacement

Procedure for removing and replacing the alternator collector rings.

Alternator Assembly

Rotor Assembly

Steps for assembling the collector rings onto the rotor shaft.

Drive End Shield Assembly

Procedure for installing the bearing and retaining screws in the drive end shield.

Collector Ring End Shield Assembly

Instructions for installing bearings, seals, and bushings into the collector end shield.

Rectifier Assembly

Steps for preparing and mounting the rectifier assembly.

Stator Assembly

Procedure for soldering stator leads to the rectifier assembly.

Rotor and Drive End Shield Installation

Steps for installing the rotor and drive end shield assembly with feeler gauges.

Regulator and Capacitor Installation

Procedure for installing the voltage regulator and suppression capacitor.

Functional Testing

General Information

Overview of the two main functional testing categories: Power Output and Voltage Trace.

Power Output Testing

Procedure for testing the alternator's ability to produce rated current and voltage.

Voltage Trace Evaluation Patterns

Analysis of alternator output waveforms against known patterns to identify faults.

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