Refrigerant Database; System Flush - Bosch ACS 661 Manual Original

en 44 | ACS 661 | Operating Instructions
5.8

Refrigerant DataBase

Charge data specific for the vehicle being serviced can
be retrieved directly from the R1234yf database resid-
ing onto the SD card.
1. Insert the database memory card in the memory
card slot of the ACS 661.
!
When you are using the database, insert the data-
base memory card in the memory card slot of the
ACS 661.
2. Press the Database on the keypad.
3. Follow prompted instructions to access vehicles
data.
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SP00D00171 2019-07-02
5.9

System Flush

WARNING: To prevent personal injury while
working with refrigerant, read and follow
the instructions and warnings in this manu-
al, and wear protective equipment such as
goggles and gloves.
WARNING: Do NOT disconnect service
couplings during the flushing process.
Refrigerant could spray out of the fittings,
and exposure may cause personal injury.
!
The flushing kit has a replaceable filter as well as a
debris strainer, both of which can get plugged. At
the end of the flush cycle, check the high-side (red)
gauge for system pressure, and check the adapter
for complete removal of refrigerant.
!
If pressure exists or refrigerant remains, exit the
flushing cycle and enter the recovery mode to recov-
er refrigerant through both the high-side (red) and
low-side (blue) hoses. Then service the filters and
repeat the flush process.
The System Flush function is performed using a vehicle
manufacturer-approved flushing adapter. Refer to the
instructions included with the adapter also as you per-
form the following steps.
1. Verify the flusher filter and strainer are not plugged.
2. Mount the flush vessel on the side of ACS 661 re-
ferring to the flush kit user instruction. Do not make
any connections at this time.
3. Remove the oil drain bottle from the ACS 661.
4. Drain the oil bottle and dispose of the oil according
to regulations in your area.
5. Reinstall the oil drain bottle on the ACS 661.
6. Recover all refrigerant from system to be flushed.
7. Note the amount of oil collected during recovery.
This amount must be replaced, as well as any oil
collected during flush.
Robert Bosch GmbH