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Go straight towards the care and maintenance that goes straight towards air cond
From;    Author:Stand originally

One, go straight towards the care and maintenance that goes straight towards air conditioning system

1, run quickly go straight towards air conditioning system commonly used parameter

Make cryogen: HFC, 134a

Refrigeration agent adds pour an amount: 380g ± 10%

Compressor is refrigerant lube: Lube of ㄓ 肞 AG.

Systematic vacuum spends: Vacuum meter presses ≥ 740mmHg

Actuating pressure of air conditioning system (temperature of 2000r/min of engine rotate speed, environment 37 ℃ of 32 ~ ) :

High-pressured pressure 1.3 ~ 1.6MPa

Low-pressure pressure 0.1 ~ 0.2MPa

2, care and maintenance

① is in winter, when system of car air conditioning stops to move, air conditioning system also should start working 5min above two weeks every regularly.

② often should check condenser surface clean, have without sundry add in condenser surface with clay, undertake cleaning with water, should notice not to injure condenser wing piece.

After medium screen pack should disassemble weeks, box of ③ air conditioning undertakes cleaning, evaporator core body should maintain a station the first year to undertake disassembling cleaning in major.

④ should maintain a station to move pulling force of school compressor leather belt to major regularly.

2, Chang'an runs quickly go straight towards car air conditioning common breakdown maintains a method

1, breakdown phenomenon: Compressor is not sucked close, air conditioning system does not work, the system does not have pressure.

Reason: Refrigeration agent is all leak.

Eliminate a method: Find out leak to nod (pipeline unscrewed of switch of worn-out, pressure already shook pipe of burst of sealing ring of worn-out, pipeline, condenser, expand safety plate of leak of attaint of a powerful person, compressor damages already invalidation) junior travel changes already the component of invalidation, undertake vacuumize next, protect pressure, set by air conditioning system fill note a quantity to add note refrigeration agent, breakdown can eduction.

2, breakdown phenomenon: Compressor is sucked close, air conditioning system not refrigeration, temperature of surface of compressor eduction canal is very high (very hot hand) expand watch of pipe of pass in and out of a powerful person is lukewarm without difference in temperature, compressor sucks the high pressure after closing to do not have change, but low-pressure pressure is very low.

Reason: Expand lukewarm head of feeling of a powerful person is worn-out, the cold intermediary that seals is all leak, send the aperture of a powerful person of bilge a powerful person to shut, cannot realize refrigeration agent to circulate.

Eliminate a method: Change expand a powerful person, undertake vacuumize next, protect pressure, set by air conditioning system fill note a quantity to add note refrigeration agent, breakdown can eduction.
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