47 6.4 Hoses Flushing; 48 6.5 Recharging The A/C System Of The Vehicle - Bosch ACS 753 Notice Originale

6.5 Recharging the A/C system of the
vehicle
WARNING: to prevent injuries while
working with the refrigerant, read and
follow the instructions and warnings in this
manual, and wear protective clothing, such
as safety glasses and gloves.
1. Call up the Main Menu.
2. Select
.
3. Enter the service data and select
vehicle data through the database. confirm with
(see chapter 6.1).
4. Enter the quantity of refrigerant to be charged with
the numeric keypad.
5. Select the "type of charge" with the Down arrow
button and set with
charge the vehicle (high pressure side, low pressure
side or both sides).
6. Select
to continue.
7. With
select if you want to perform the oil
injection. If you set not to perform the oil injection,
go directly to phase 10 displaying.
8. Enter the amount of oil to be charged with the
numeric keypad.
i
The display shows the amount of oil/dye available
for the injection. Into the bottles is actually present
a slightly higher quantity that includes a safety
margin of about 30 g.
9. Select the "oil type" with the Down arrow button
and set with the oil to be charged (PAG or POE).
10. Select
to continue.
11. Enter the amount of UV dye to be charged with the
numeric keypad.
12. Select
to continue.
13. ACS 753 displays a dedicated message that asks to
the operator whether to perform the hoses flushing.
« Select
to proceed or
hoses flushing.
i
Follow the on-screen instructions to perform the
hoses flushing procedure.
14. When the message appears, connect both service
hoses to the vehicle service connections and open
the valves of the service hoses turning the ring nuts
clockwise.
Robert Bosch GmbH
to set the
the hoses to be used to
not to perform the
Instructions for use | ACS 753 | 59
!
The charging function, if accompanied by oil
injection, can only be carried out on the high
pressure side or on both sides.
i
In systems provided with only a low pressure
connection, after charging, wait at least 10 minutes
before operating the air conditioning system of the
vehicle.
i
Fill only through the high pressure connection (if
possible) or always follow the vehicle manufacturer's
instructions.
!
Always follow the vehicle manufacturer's instructions
before changing the amount of oil.
!
Prior to the addition of UV dye, it is absolutely
necessary to check if an air-conditioning leak test
with UV contrast agent is permitted according to the
vehicle manufacturer.
i
New oil and UV dye can only be added in a vacuum
air conditioner. Prior to the addition of oil/UV dye, it
is necessary to create a vacuum.
15. Select
to start the charging procedure.
« When the charge cycle is close to the desired
weight value, the station slows down, alternating
charging and settling phases, etc.
i
At this point, if the vehicle is moved or hit, it is
possible to obtain an inaccurate charge.
16. When the message appears, close the service
hose connections turning the ring nuts counter-
clockwise. Disconnect the service hoses from the
A/C system and connect them to the station flushing
connections.
17. Select
to start the hoses cleaning.
18. ACS 753 displays, at the end of the hoses cleaning,
a dedicated message that indicates to the operator
the procedures to be performed to start the
pressures test (see chapter "Pressures test").
« Select
to proceed or
pressures test.
19. At the end the ACS 753 displays a screen with the
charge result report.
i
Select to print the overview.
Select to return to the Main Menu.
20. The A/C system of the vehicle at this point is ready
for use.
en
not to perform the
|
SP00D00596 2019-07-04