Air conditioner--Compressor assemblyCompressor assembly.....................................
Change..........................................................
- Disassemble radiator cover.
- Reclaim HFC-134a(R134a)
- Disconnect refrigerant No.1 low pressure hose.
(a) Disassemble the bolt from compressor and electromag-
netic clutch assembly and disconnect refrigerant low pres-
sure hose.
(b) Disassemble O-shape loop from refrigerant low pressure
hose.
Note: after disassembling the pipeline, it is necessary
to cover the joint to prevent humidity or dust from
entering in system.- Disconnect refrigerant No.1 high pressure hose.
(a) Disassemble the bolt from compressor and electromag-
netic clutch assembly and disconnect refrigerant high pres-
sure hose.
(b) Disassemble O-shape loop from refrigerant high pressure
hose.
Note: after disassembling the pipeline, it is necessary
to cover the joint to prevent humidity or dust from
entering in system.- Disassemble right bottom defending cover of engine.
- Disassemble driving belt.
- Disassemble compressor and electromagnetic
clutch.
(a) Disconnect the joint.
(b) Disassemble three screws and electromagnetic clutch. - Check the Refrigerant oil.
234
When upgrading compressor assembly, it is necessary to reclaim the refrigerant in system at first.
Refrigerant oil quantity added by new compressor should be calculated by following formula.
Refrigerant oil standard quantity of new compressor:
(Inner Refrigerant oil quantity of new compressor:60 ± 10ml)-(Inner discharged Refrigerant oil quantity
of old compressor)=(Refrigerant oil quantity consumed by the system when changing)
Note:
z When checking the Refrigerant oil quantity, please refer to the notes on page 206.
z For there is some Refrigerant oil in automobile pipeline, if some Refrigerant oil is not discharged
when assembling new compressor, this will incur the Refrigerant oil in system is too much to make
the system heat exchange become bad and air conditioning become invalid.