Check air conditioning system for leakage · ar8330d1761a · Mercedes-Benz WIS

AR83.30-D-1761A

Check air conditioning system for leakage

13.12.2016

Model	900
	with code HH9 (Air conditioner, automatic heater control)
	except code HK4 (Rear air conditioning, reinforced)
Model	906
	with code H08 (Roof-mounted air conditioning system, reinforced)
	with code HH9 (Air conditioner, automatic heater control)
	except code HH7 (Roof-mounted air conditioning system, basic)
	except code HK4 (Rear air conditioning, reinforced)
Model	906
	with code HH7 (Roof-mounted air conditioning system, basic)
	with code HH9 (Air conditioner, automatic heater control)
	except code H08 (Roof-mounted air conditioning system, reinforced)
	except code HK4 (Rear air conditioning, reinforced)
Model	906
	with code HH9 (Air conditioner, automatic heater control)
	except code H08 (Roof-mounted air conditioning system, reinforced)
	except code HH7 (Roof-mounted air conditioning system, basic)
	except code HK4 (Rear air conditioning, reinforced)

 Danger	Risk of explosion when using a forming gas with incorrect mixing ratio. Risk of suffocation due to inhalation of forming gas. Risk of injury due to bursting of high-pressure hoses.	Wear safety glasses and protective gloves. No smoking or open flames. Work in well-ventilated rooms only.	AS83.00-Z-0001-02A
 Danger	Risk of fire due to ignition of R1234yf refrigerant on hot components. Risk of poisoning caused by inhaling overheated refrigerant vapors. Risk of injury to skin and eyes caused by contact with escaped R1234yf refrigerant and when working on pressurized parts. Risk of explosion due to formation of ignitable refrigerant/air mixtures	Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.	AS83.00-Z-0007-01A
 Warning	Risk of poisoning caused by inhaling overheated refrigerant vapors from an air conditioning system containing R134a. Risk of injury to skin and eyes caused by contact with liquid R134a refrigerant and when working on pressurized parts	Never perform welding work on or near a closed air conditioning system. No smoking or open flames. Wear safety glasses and protective gloves. Work only in well ventilated rooms. Carry out repair work on the air conditioning system circuit only after the system has been evacuated.	AS83.00-Z-0006-01A
Topical note	Protect air conditioning circuit and components from moisture when carrying out repair work		AH83.30-N-0005-01A
Topical note	Procedure for a damaged or leaky air conditioning system		AH83.30-N-0004-01A
	Notes on handling refrigerant R1234yf		AH83.30-P-0003-02A
	Notes on handling refrigerant R134a		AH83.30-N-0003-01A
	Check
1	Evacuate air conditioning system	Model 906 except code HX1 (R-1234yf refrigerant), model 900	AR83.30-D-1760D
		Model 906 with code HX1 (R-1234yf refrigerant)	AR83.30-D-1760DA
2	Fill air conditioning with forming gas and check pressure drop
	000 588 19 21 00 Leak tester		WS83.00-P-0035B
		 Make sure ambient temperatures remain constant. Otherwise, temperature changes during the pressure test (e.g. caused by a change in the weather or cooling down of the engine compartment over night) may cause pressure fluctuations.
		 Do not fill air conditioning system with forming gas unless engine is cold.
		 When connecting and when operating the leak tester, the complete work procedure must be conducted in accordance with the operator's manual as issued by the manufacturer.
		Pressure drop in refrigerant circuit filled with test gas	*BE83.30-N-1001-04D
		If no pressure drop was detected.
		
		Check for leakage on air conditioning system using gas detection unit.
		000 588 03 21 00 Gas detector	WS47.00-P-0019B
		 Observe operator's manual for gas detection unit.
		In the event of leakage
		
		Replace damaged components of the air conditioning system.
3	Evacuate the forming gas in the refrigerant circuit using leak tester
4	Charge air conditioning system	Model 906 except code HX1 (R-1234yf refrigerant), model 900	AR83.30-D-1760D
		Model 906 with code HX1 (R-1234yf refrigerant)	AR83.30-D-1760DA

Air conditioning

Number	Designation			Model 900, 906
BE83.30-N-1001-04D	Pressure drop in refrigerant circuit filled with test gas	Test pressure	bar	15
		Test period	h	4
		Permissible ambient temperature fluctuation	°C	2
		Pressure drop	bar	0

参照文書

ah8330n000301a 冷媒 (R134a) の取扱いについての注意事項
ah8330n000401a 損傷または漏れがあるエアコンの取扱い
ah8330n000501a リペア作業時のエアコンの冷媒回路および構成部品の水分付着からの保護
ah8330p000302a 冷媒 R1234yf の取扱いに関する注意事項
ar8330d1760d
ar8330d1760da
as8300z000102a 間違った混合割合のフォーミングガスの使用による爆発の危険フォーミングガスの吸い込みによる窒息の危険。高圧ホースの破裂による負傷の危険。
as8300z000601a R134aが充填されたエアコンの過熱された冷媒蒸気を吸い込むことによる中毒の危険液化した冷媒R134aの飛散による皮膚や目への接触および圧力のかかった部品を使用する作業で�
as8300z000701a 高温の構成部品への冷媒R1234yfの引火による火災の危険過熱によって気化した冷媒を誤って吸い込むことによる中毒の危険むき出しの冷媒R1234yfの皮膚や目への接触および圧力�
ws4700p0019b 000 588 03 21 00 ガス・リーク・テスタ
ws8300p0035b 000 588 19 21 00 リークテスター