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104 | ACS 651/751 | Program description
6.7
Performing service in manual mode
In the manual mode, each phase has to be selected
manually. The service is executed after all the param-
eters for a particular phase have been set. It is also pos-
sible to execute only a required service phase or more
than one service phase.
The default values of the parameters in each stage are
listed in the following table:
Service phase
Parameter
Recovery
Pressure increase time
Vacuum time
Vacuum
Vacuum hold time
Refrigerant oil quantity
Oil recharge
Delta oil quantity
UV dye recharge
UV dye quantity
Tab. 1:
Default values of parameters
The default value of the vacuum time (20 minutes) is a standard
*)
recommended value and is independent of the volume of the
refrigeration circuit in the vehicle A/C system. This value should
be used if the vehicle documentation does not specify an exact
vacuum time.
!
Use only new oil to replace the amount removed
during the recovery process. Used oil should be
discarded as per applicable federal, state and local
requirements.
1. Connect the power cable to the mains supply.
2. Turn on the master switch.
3. In the main menu, select "Vehicle A/C Service".
4. Select the operator name and press E.
5. Check the type of vehicle being serviced - hybrid or
non-hybrid.
6. Check if the correct fresh oil bottle - PAG or POE - is
connected.
i
If you are switching from a hybrid vehicle to a non-
hybrid vehicle or vice versa, perform flushing. Refer
to chapter 6.8 for more information on flushing.
|
1 689 988 238
2012-11-06
Default value
5 min
20 min
*)
4 min
10 ml
0 ml
5 ml
7. Select "Manual Mode" and press E. For ACS 651,
select the service type - quick service or precision
service - and proceed to step 6.
The phases that can be executed in the manual mode
are displayed on the screen.
8. Press the o or u keys to scroll to a particular phase.
To select a particular phase for execution, press .
9. Press E.
10. Check the type of connection on the vehicle A/C
system.
11. Connect the appropriate coupler to the service
connection on the vehicle A/C system.
i
If you select oil and/or UV dye recharge, it is not pos-
sible to select the option "LP only".
!
Do not use any tools to tighten the couplers.
12. Press the z or r keys to select the type of
coupler.
13. Press u to navigate to the "Vehicle ID (Plate Num-
ber)" field. Enter the plate number of the vehicle
being serviced.
14. Press u to navigate to the "VIN Number" field. Enter
the VIN number of the vehicle being serviced.
i
R134a can only be filled into an A/C system that has
been vacuumed. The vacuum phase must, therefore,
be performed before R134a injection.
i
Always pay attention to the vehicle-specific info
before changing the quantity of oil and R134a.
i
Check the oil quantity calculation - delta or absolute
- before you proceed with the service. Selecting the
wrong oil quantity calculation might damage the ve-
hicle compressor. To change the oil quantity calcula-
tion, refer to chapter 4.8.1.
Robert Bosch GmbH
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