About this operating manual
9
Service tasks. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
9.1
Leak test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
9.2
Calibrating the oil scales . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .108
9.3
Changing the dryer filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .110
9.4
Filter maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .111
9.5
Calibrating the pressure transducer . . . . . . . . . . . . . . . . . . . . . . . . . . .113
9.6
Changing the vacuum pump oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .114
9.7
Meter readings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .116
9.8
Correcting the filling quantity for long service hoses . . . . . . . . . . . . . .117
9.9
Replacing the printer paper . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
9.10 Updating the software via USB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .118
9.11 Changing the drained oil glass . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .120
10
Cleaning and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . .121
11
Disposal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
11.1 Disposing of used fluids . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
11.2 Disposing of packaging material . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
11.3 Disposal of the old unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .122
12
Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .123
13
Technical data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .126
1
About this operating manual
This operating manual describes the VAS 6746B air conditioning service
stations (AirConServiceCenter).
The manual is for those who perform maintenance on vehicle air condi-
tioning systems and have the expertise required to do so.
It contains all the instructions necessary for safe and effective operation
of the air conditioning service station. Read this operating manual care-
fully before putting the device into operation for the first time.
Please also note the information in the current material safety data
sheets. They can be found at:
dometic.com/sds
Keep this operating manual in the compartment of the
AirConServiceCenter, so that any information you need is always at
hand.
70
VAS 6746B
EN