© MAHLE
Operation | ACX1281 | 19
ACX1281 | 19
| 19
en
6. Operation
m
Before connecting service hoses proceed as follows:
1.
Perform refrigerant identification (see chapter 6.3).
6.1
Service phases
y
Recovery phase:
Refrigerant is extracted from the vehicle,
cleaned and routed into the internal refrigerant bottle.
y
Vacuum phase:
A vacuum is generated in the vehicle air
conditioning system and the system is checked for leaks.
y
Recharge phase:
—
Refrigerant: The vehicle air conditioning system is filled
with a specified amount of R1234yf refrigerant.
6.2
My database
t
Perform the following steps to add a new vehicle to the
operator-defined (direct parameter input) database or to make
changes or deletions.
1.
Select "
Settings
>>
My database
".
2.
Select vehicle with
.
3.
Press
.
4.
Alter values with input keys.
5.
Store entries and return with
O
.
6.3
Refrigerant identification unit
6.3.1 Refrigerant analysis
m
Oil contamination will damage the refrigerant identification
unit! If the refrigerant sample is supplied to the unit from the
recycling equipment directly, it must be protected from oil that
comes from vehicles or accumulate in service hoses!
m
The operator must periodically examine the white sample
filter for oil contamination and stop immediately if any oil is
observed!
t
The gas pressure should be between 1.7 –16 bar. Accurate gas
analysis can be achieved with less than 1.7 bar but additional
time must be provided. In this case start the flow of gas and
then wait for 20 seconds before instructing the refrigerant
identification unit to test the gas.
1.
Switch on the ACX1281.
2.
Select
"Vehicle A/C Service
>>
Refrigerant Identification".
3.
Follow the menu prompting of ACX1281.
t
Getting message "Sample not OK", check for contamination
of the test hose, then repeat the procedure up to 2 times.
t
Getting message "Sample not OK" for three times, a refriger-
ant verification must be performed.
Summary of Contents for ACX1281
Page 1: ...MAHLE ACX1281 EN Operation manual A C Service Units...
Page 33: ...MAHLE Notes 33 en 12 Notes...
Page 34: ...MAHLE 34 ACX1281 Notes en...
Page 35: ...MAHLE Notes 35 en...
