S P00 D00 159
2019-03-01
|
Robert Bosch GmbH
A/C service preparation | ACS 752 | 49
en
9.
Testing the vehicle air con-
ditioning system
9.1
Visual inspection
Prior to service, check all visible components and connec-
tions on the vehicle air conditioning system for damage.
9.2
Pressure test
!
Follow the additional ACS 752 menu prompting.
1.
Call up the start screen.
2.
Press <
Menu
>.
3.
Press <
2
> for "
Functions
".
4.
Select <
2
> for "
Pressure test
".
5.
Follow messages on screen.
i
Return with <
ESC
>.
8.
A/C service preparation
WARNING – Risk of burns from hot engine
components
Contact with hot engine components will
cause severe burns.
¶
Allow the engine to cool down.
¶
Wear protective gloves.
WARNING – Risk of frostbite from escap-
ing refrigerant
Refrigerant causes severe frostbite on the
skin.
¶
Check the service hoses for damage.
¶
Firmly connect the service quick-release
couplings to the service hoses.
¶
Wear safety goggles.
¶
Wear protective gloves.
i
Observe the vehicle manufacturer's recommenda-
tions for A/C service on vehicles with a low-pressure
connection only.
1.
Stand the ACS 752 on a flat, vibration-proof surface.
2.
Actuate the brake to stop the ACS 752 rolling.
3.
Connect the power supply cord to the power supply.
4.
Switch on the master switch.
!
Observe the manufacturer's instructions for the cor-
responding vehicle before performing A/C service.
!
The ACS 752 is only to be operated with R134a
refrigerant. Check which refrigerant is used for the
vehicle before performing A/C service.
!
The ACS 752 cannot be used for air conditioners
repaired using a chemical sealant. Non-observance
will invalidate the warranty.
!
Never attempt to close the valves of the internal re-
frigerant cylinder whilst the ACS 752 is in operation.
