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Bosch ACS 753 User Manual

Bosch ACS 753
110 pages
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ACS 753 - ACS 763 - ACS 863
en
Repair instruction
A/C Service Unit

Table of Contents

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Bosch ACS 753 Specifications

General IconGeneral
Refrigerant circuit testYes
Oil drainYes
Refrigerant chargingYes
Vacuum testYes
Refrigerant recoveryYes
Power Supply220-240V, 50Hz

Summary

Safety Warnings

Explanation of Safety Signal Words

Defines hazard severity levels like DANGER, WARNING, CAUTION.

Explanation of Safety Decals Used on the Machine

Describes graphical symbols used for safety instructions on the machine.

Machine Handling and Precautions

Covers safe movement, protective devices, and specific operational cautions like pressure relief.

Introduction

Unit Overview and Components

Identifies and describes the main parts and overall function of the A/C service unit.

Control Panel Functions and Icon Legend

Explains the control panel functions, buttons, and symbols for user interaction.

Setup Menu and Functions Menu Navigation

Details the initial setup procedures and how to access the main functions menu.

Settings Menu and Key Functions

Covers settings like WiFi, language, units, and functions like firmware updates and leak tests.

Maintenance Menu and Procedures

Outlines access to maintenance tasks like filter and pump maintenance, calibration, and system info.

General Maintenance and Tank Fill

Covers general cleaning, electrical protection, and the process for filling the internal tank.

Filter Replacement and Vacuum Pump Maintenance

Detailed steps for replacing the filter and performing vacuum pump maintenance.

Refrigerant Identifier and Print Header Setup

Describes identifier maintenance and editing print headers.

Calibration Check and Scales Reset

Procedures for verifying scale calibration and resetting scale offsets.

Leak Tests and Lockout Procedures

Covers pressure decay leak tests and securing the unit with a lockout mechanism.

UNIT SPECIFICATIONS

MAINTENANCE SCHEDULE

Diagnostics and Testing Procedures

Functional Checks and Software Updates

Procedures for verifying unit operation and updating unit software.

System Diagnostic Tests and Calibration

Covers various diagnostic tests, including load cell calibration, output, and input tests.

Error Message Reference Guide

Lists error codes and warnings with descriptions and recommended actions for troubleshooting.

DEPRESSURIZING THE UNIT

Unit Functional Status Checks

Procedures for checking unit status during depressurization, functional or not.

TROUBLESHOOTING

Power, Grounding, and Noise Issues

Addresses issues related to power supply, grounding, and electrical noise interference.

System Function and Component Troubleshooting

Covers problems with power-up, circuit breakers, system filling, recovery, and oil drain issues.

Evacuation, Leak Test, and Charge Issues

Addresses problems with vacuum, leak tests, oil injection, charging, and hose flushing.

Board and Component Failure Diagnosis

Guides on troubleshooting power board, control board, compressor, and vacuum pump failures.

Electrical System Operation and Repair

System Operation and Component Identification

Explains the operation of electrical systems and identifies key components like power and control boards.

Electrical Component Replacement

Step-by-step instructions for replacing key electrical components like power board, control board, and fan.

Plumbing and Mechanical System Operation and Repair

System Operation and Component Functions

Describes the operation of the compressor, vacuum pump, manifold, and ISV, along with ancillary components.

Plumbing and Mechanical Component Repair

Guides on replacing major parts like the compressor, vacuum pump, manifold block, and solenoids.

Flow Diagrams and Process Explanations

Illustrates system processes like Tank Fill, Recovery, Charge, and diagnostics with accompanying descriptions.

MAIN COMPONENT DESCRIPTIONS

Notes

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