ar8330p1761mfa

Check air conditioning system for leakage

Type ar · emne 83.30 · version 0107 · 2019-11-11

Gælder for: Model 118 with engine 139, 260, 282, 608, 654 Model 177 with engine 139, 260, 282, 608, 654 Model 247 with engine 260, 282, 608, 654 Model 247.7 with engine 139

Ikke tilgængelig på “da”; vises på Engelsk.

Placering

Funktionsgruppe 3 Karrosseri › 83 Klimatisering › 83.30 Klimaanlæg — Serie 118 · Serie 177 · Serie 247 · Serie 654

EinPAS 39 Varmesystem/ventilation/køling › 39.15 Klimatisering › 39.15.5 Klimaanlæg komplet — Serie 118 · Serie 177 · Serie 247 · Serie 654

Gælder også for motorer/gearkasser: 139 ***, 260 ***, 282 ***, 608 ***

AR83.30-P-1761MFA

Check air conditioning system for leakage

04.10.2019

Model

118 with engine 139, 260, 282, 608, 654

Model

177 with engine 139, 260, 282, 608, 654

Model

247 with engine 260, 282, 608, 654

Model

247.7 with engine 139

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

Topical note

Procedure for a damaged or leaky air conditioning system

AH83.30-N-0004-01A

Check

1

Evacuate air conditioning system.

AR83.30-P-1760MFA

2

Fill air conditioning with forming gas and check pressure drop.

000 588 19 21 00 Leak tester

WS83.00-P-0035B

Pay attention to the leak tester operator's manual.

Do not fill air conditioning system with forming gas unless engine is cold.

Temperature changes during the pressure test (e.g.  due to weather change or cooling down of the engine compartment overnight) can cause pressure fluctuations.
Consistent ambient conditions must therefore be strictly ensured.

Pressure drop in refrigerant circuit filled with test gas

*BE83.30-P-1001-04A

3

Check for leakage on air conditioning system using gas detection unit.

If a pressure drop is detected.

000 588 03 21 00 Gas detector

WS47.00-P-0019B

Pay attention to the operator's manual of the leak tester and the gas detection unit.

If a leakage is found,

Replace damaged components of the air conditioning system.

4

Release forming gas from leak tester.

5

Fill air conditioning.

AR83.30-P-1760MFA

Air conditioning

Number

Designation

Model 118, 164, 166, 167, 169, 171, 177, 190, 197, 199, 204, 205, 207, 209, 211, 212, 216, 218, 219, 221, 230, 238, 240, 245, 247, 251, 253, 257, 290, 292, 293
Model 213, 217, 222
except code 1U6 (R744 refrigerant)

BE83.30-P-1001-04A

Pressure drop in refrigerant circuit filled with test gas

Test pressure

bar

15

Test period

h

4

Permissible fluctuation of ambient temperature

°C

2

Pressure drop

bar

0

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