Connect The Hp And Lp Service Hoses To The Vehicle Air Conditioning System; Open The Valves On Both Service Hoses; Call Up The Start Screen - Bosch ACS 752 Originalbetriebsanleitung

en 52 | ACS 752 | Operation
10.3.1 Recovery
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During the recovery phase, ACS 752 automatically
empties the service hoses and separates the
extracted oil from the refrigerant which flows into
the used oil bottle.
i
The pressure in the vehicle air conditioning system
must be checked prior to and during the recovery
phase.
i
It is recommended to let the air conditioning system
run for a few minutes before the recovery. This will
allow a larger amount of refrigerant to be extracted.
Turn off the air conditioning system before starting
recovery.
!
Follow the additional ACS 752 menu prompting.
<Recovery> key
1. Connect the HP and LP service hoses to the vehicle
air conditioning system.
2. Open the valves on both service hoses.
3. Call up the start screen.
4. Press <Recovery>.
 ACS 752 performs a self-cleaning process.
 The amount of refrigerant extracted is displayed
on the screen after the recovery.
5. Close the valves on both service hoses.
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After the recovery phase, you must confirm whether
the stored vehicle data should be deleted.
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Return with <ESC>.
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10.3.2 Vacuum phase
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Make sure recovery has been performed before
generating the vacuum.
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The vacuum phase is not started if there is
pressure in the vehicle air conditioning system. A
corresponding fault message is displayed on the
screen.
!
Follow the additional ACS 752 menu prompting.
<Vacuum> key
1. Connect the HP and LP service hoses to the vehicle
air conditioning system.

2. Open the valves on both service hoses.

3. Call up the start screen.

4. Press the <Vacuum> key.
5. Enter duration of vacuum generation with <0 - 9>
and confirm with <Ok>.
 ACS 752 performs the vacuum phase.
i
After the vacuum phase, the time is started for the
pressure monitoring (leak test). After this time has
elapsed, the vehicle air conditioning system is tested
for leaks. The result from this leak test is displayed
on the screen.
6. Close the valves on both service hoses.
i
After the vacuum phase, you must confirm whether
the stored vehicle data should be deleted.
i
Return with <ESC>.
Robert Bosch GmbH