Hofmann geodyna 7750-p

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geodyna 7750-p

Service Manual

Main Page

Table of Contents3
Introduction5
General5
Tools Required5
Important Safety Instructions8
Electrical Safety Precautions8
Ac/DC Power Distribution9
Lockout And/Or Tagout System Procedure9
Electrical Requirements9
Ac Theory of Operation9
DC Theory of Operation10
Functional Description10
INSTALLATION PRECAUTIONS (Floor Level)11
Balancer Components12
Introduction12
Lcd Touch Box12
Power Entry Module (Pem)14
Integrated Controller, Power Supply, Sonar Sensor, Laser Pointer Board15
Networking Section15
Power Supply Section15
Controller Section15
Capacitors15
Cpu Arm Cortex Board15
Signal Booster Interface Board16
Vibratory Assembly16
Transducers17
Temperature Sensor17
Incremental Encoders18
Encoder Board of the Main Shaft18
Encoder Board of the Power Clamp19
Motor Drive System19
Belt Tension20
The Electromagnetic Brake20
Power Clamping Device21
Interruttore DI Auto Stop Geodata22
Geodata 4 Arm22
Sonar Wheel Data System23
Sonar Sensor23
Transformer and Rectifier Bridge23
Wheel Lift Board24
Wheel Lift Control25
Service26
Introduction26
Power Supply Cable: Check and Replacement26
To Access the Inside of the Machine26
To Access to the Lcd Touch Box27
Check Power to Power Supply Box and Lcd Touch Board27
Check and Replacement of the Main Switch27
Check and Replacement of the Power Entry Module28
Check and Replacement of the Power Entry Module 6.3A Fuses29
Check and Replacement of the Lcd Touch Box Fuse30
Check of the 5Vdc Power Supply Voltage30
Check and Replacement of the Lcd Touch Board31
Check of Vibratory System32
Replacement of the Alloy Vibratory System33
Check and Replacement of Transducers on Alloy Vpm34
Check and Replacement of Optoencoder Board of the Main Shaft37
Check and Replacement of Encoder Board for Power Clamp38
Check and Replacement of the Motor40
Check and Replacement of the Belt41
Check and Replacement of the Power Clamp Nut and Tie Rod42
Check and Replacement of the Electromagnetic Brake44
Check and Replacement of Electric Brake / Clamping Pedal Switch46
Check and Replacement of Geodata Distance Potentiometer48
Check and Replacement of Geodata Diameter Potentiometer49
Check and Replacement of Hood Switch and Cam50
Laser Pointer: Check and Replacement51
Sonar Sensor: Check and Replacement52
Transformer: Check and Replacement54
Rectifier Bridge: Check and Replacement55
Wheel Lift Board: Check and Replacement58
Wheel Lift Potentiometer: Check and Replacement61
Upper Limit Switch: Check and Replacement65
Lower Limit and Feet Protection Board Safety Switches: Check and Replacement67
Wheel Lift Motor: Check and Replacement72
Unlocking of the Wheel Lift Worm Screw75
Troubble Shooting76
Introduction76
To Update the Software76
In the Field Reprogramming of the Balancer77
In the Field Calibration of the Balancer77
Diagnostic Service Steps77
E" Eeror Codes79
H" Error Codes87
Error Codes on Board90
Keyboard Display91
Power Fail93
Temperature Sensor93
Structure of an Error Code104
Pryoriti ID104
Error ID104
Module 81: Command Language104
Module "C" :Hardware Test Error106
Service Codes108
Introduction108
Entering Service C Codes and Options108
Saving Settings for Modes of Operation Data109
Service C Codes References110
Trouble Shooting Flow Chart144

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Hofmann geodyna 7750-p Specifications

General

Brand	Hofmann
Model	geodyna 7750-p
Category	Wheel Balancers
Language	English

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