LiuGong CLG835H, Service Manual

Page: 507 / 764

5-1
January 24, 2017
Air Conditioning System
CLG835H
Air Conditioning System
Basic Information ............................................................................................................5-3
Safety.....................................................................................................................................................5-3
Universal tool, tooling list .......................................................................................................................5-3
Special tool, tooling list ..........................................................................................................................5-4
Tightening torque for lines connectors of A/C system............................................................................5-4
Structure Function Principle ..........................................................................................5-4
Components and position ......................................................................................................................5-4
System technical parameters.................................................................................................................5-5
Description of principle diagram and working principle ..........................................................................5-6
Testing and Adjustment..................................................................................................5-9
Air conditioning system test ...................................................................................................................5-9
Removal and Installation ..............................................................................................5-11
Introduction of air conditioner system main parts.................................................................................5-11
Removal and installation of A/C components ......................................................................................5-12
Removal of compressor ...................................................................................................................5-12
Removal and installation of evaporator mounting assembly............................................................5-19
Replacement of A/C control panel ...................................................................................................5-24
Inspection and replacement of A/C fuse ..........................................................................................5-25
Removal and replacement of reservoir ............................................................................................5-25
Removal and installation of condenser ............................................................................................5-26
Removal and installation of pressure switch ....................................................................................5-27
Fault Diagnosis and Judgment ....................................................................................5-29
Classification of common faults ...........................................................................................................5-29
Overhauling method.............................................................................................................................5-29
Maintenance method when backlight of A/C panel is not on and button does not work ..................5-29
Maintenance method when no air comes out of air conditioner or air outlet volume is obviously smaller
than the normal volume....................................................................................................................5-30
Maintenance method when natural air comes out when heating is switched on .............................5-36
System Maintenance .....................................................................................................5-37
A/C system regular maintenance .........................................................................................................5-37
Cleaning of recirculating air strainer.................................................................................................5-37
Cleaning of fresh air strainer ............................................................................................................5-38