Remove/install refrigerant line between condenser and vehicle interior expansion valve

AR83.30-D-7833TSF

Remove/install refrigerant line between condenser and vehicle interior expansion valve

15.04.2020

Model

910 with engine 651

1

Refrigerant line

2

Nut

3

Cover

1

Refrigerant line

5

Nut

7

Bracket

4

Refrigerant line

6

Bolts

8

Bracket

 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

 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

Topical note

Protect air conditioning circuit and components from moisture when carrying out repair work

AH83.30-N-0005-01A

Notes on handling refrigerant R1234yf

AH83.30-P-0003-02A

Notes on handling refrigerant R134a

AH83.30-N-0003-01A

 

Remove/install

1

Drain air conditioning system

AR83.30-D-1760TS

2

Remove radiator grille

AR88.40-D-4001TS

3

Remove cover (3)

4

Remove refrigerant line (1) from condenser



Compressor oils (specification 362.1)

BB00.40-P-0362-01A


Seal refrigerant line (1) and condenser immediately with suitable stop plugs.
Otherwise the air conditioning system can be damaged.

 To do so, unscrew nut (2).

 Installation: Replace sealing rings and moisten with compressor oil.

 Nut, refrigerant condenser to refrigerant line

*BA83.30-N-1007-01TS

 Record plug

*129589009100

5

Remove refrigerant line (1) from expansion valve



Compressor oils (specification 362.1)

BB00.40-P-0362-01A


Seal refrigerant lines (1, 4) and expansion valve immediately using suitable stop plugs.
Otherwise the air conditioning system can be damaged.

 Unscrew nut (5) to do this.

 Installation: Replace sealing rings and moisten with compressor oil.

 Nut, refrigerant line to expansion valve

*BA83.30-N-1001-01TS

 Record plug

*129589009100

6

Remove bolts (6)

7

Open the holders (7)

 To do so, use a suitable tool and open holders (7) from below in upward direction.

 Installation: Check the holders (7).

Depending on findings



Replace affected holders (7).

8

Remove refrigerant line (1)

 To do so, unclip refrigerant line (1) from holder (8) and unhook from holders (7).

 Installation: Check holder (8).

Depending on findings



Install new holder (8).

9

Install in the reverse order



Check

 Warning

Risk of accident from vehicle starting off by itself when engine running. Risk of injury (bruises and burns) resulting from working on the engine while it is being started or when it is running.

Secure vehicle to prevent it from starting off by itself. Wear closed and snug-fitting work clothes. Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

10

Check for leak tightness with engine running

 Visual inspection only.

 Air conditioning

Number

Designation

Model 907 with engine 274, 642, 651
Model 910 with engine 651

BA83.30-N-1001-01TS

Nut, refrigerant line to expansion valve

Nm

14

 Air conditioning

Number

Designation

Model 907 with engine 274, 642, 651
Model 910 with engine 651

BA83.30-N-1007-01TS

Nut, refrigerant condenser to refrigerant line

Nm

12