© MAHLE
18 | ACX1281 | A/C service preparation
en
5. A/C service preparation
Warning – Risk of burns from hot engine
components
Contact with hot engine components will cause
severe burns.
h
Allow the engine to cool down.
h
Wear protective goggles.
h
Wear protective gloves.
Warning – Risk of frostbite from
escaping refrigerant
Refrigerant causes severe frostbite on the skin.
h
Check the service hoses for damage.
h
Firmly connect the service quick-release cou-
plings to the service hoses.
h
Wear protective goggles.
h
Wear protective gloves.
Perform the following preparatory work prior to vehicle A/C service:
m
Service hoses must be contructed of the proper materials and
have the lengths as supplied with the unit. Hoses must have
shutoff devices (quick-release couplers) at the connection point
to the A/C to minimize the introduction of air into the ACX1281
and to minimize the amount of refrigerant released while dis-
connecting the hoses.
m
Inspect hoses for signs of damage prior to performing A/C serv-
ice. Use of damaged hoses will result in the loss of refrigerant
and the possibility of refrigerant contamination.
t
Follow the vehicle manufacturer's recommendations for A/C
service on vehicles with a low-pressure connection only.
1.
Set the ACX1281 on a flat, vibration-proof surface.
2.
Actuate the caster brake to stop the unit from rolling.
3.
Connect the power supply cable to the power supply.
4.
Switch on the main switch.
t
Follow the manufacturer's instructions for the
corresponding vehicle before performing A/C service.
m
The ACX1281 is only to be operated with R1234yf refriger-
ant. Check which refrigerant is used for the vehicle before
performing A/C service.
m
The ACX1281 cannot be used for air conditioning systems
repaired using a chemical sealant. Non compliance will void
the warranty.
m
Never attempt to close the valves of the internal refrigerant
bottle while the ACX1281 is in operation.
m
Only new lubricant, as specified by the system manufacturer,
shall be installed in the MAC system. Lubricant removed from
the system and/or equipment shall be disposed of in accord-
ance with the applicable federal, state, and local procedures
and regulations.
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...
