Press - Bosch ACS 752 Manual

10.3.3 Filling of refrigerant, fresh oil and UV dye
!
Always observe the vehicle manufacturer's instruc-
tions before altering the oil quantity.
!
Before filling with UV dye it is essential to check
whether leak testing of the air conditioning system
with UV dye is approved by the vehicle manufacturer.
!
Filling should, if possible, only occur via the high
pressure connection or always follow the vehicle
manufacturer's instructions.
i
Fresh oil and UV dye can only be added to an air con-
ditioning system under vacuum. A vacuum must be
generated prior to the oil/UV dye filling process.
i
If pressure is detected in the vehicle air conditioning
system during filling, recovery must be implemented
in order to continue.
i
Fresh oil and UV dye can only be added in conjunc-
tion with R134a.
i
For systems that have only one low-pressure con-
nection, at least 10 minutes must pass after filling
before the vehicle air conditioning system can be
switched on.
!
Pay attention on using the proper fresh oil (PAG or
POE) depending on vehicle under service.
<Filling> key
!
Observe the ACS 752 menu prompting.
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 start screen.
4. Press <FILLING>.
 Dialog Customer data is displayed.
5. You have 3 possibilities:
$
Add no data and confirm with <OK>
$
Add the customer data and confirm with <OK>.
$

Press

to add a vehicle from the database and
follow messages on screen.
i
Press <ESC> to return to the start screen.
 Dialog ports and quantity is displayed.
Robert Bosch GmbH
Operation | ACS 752 | 53
6. Press <1>, <2> or <3> to select the used service
hoses.
7. Press <4> ... <7> to enable/disable and to input the
quantity of oil, UV dye and refrigerant.
i
Input the quantity with <0 – 9>, use z r to delete
existing values. Confirm with <OK>.
!
The entered quantity is always added, irrespective of
how much oil was previously extracted.
8. Press <OK> to continue and follow messages on the
screen.
"
ACS 752 performs the filling phase.
i
After the refrigerant charge the ACS units performs
hose equalization. Follow the procedure as dis-
played.
i
Return with <ESC>.
en
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S P00 D00 159 2019-03-01