Remove/install refrigerant line between refrigerant compressor and expansion valve

AR83.30-D-0010TSR

Remove/install refrigerant line between refrigerant compressor and expansion valve

24.08.2020

Model

907 with engine 274

Model

907 with engine 642, 651

Shown on model 907 with engine 651 with transmission 711.6 except code H08 (Roof-mounted air conditioning system, reinforced) and except code HH7 (Roof-mounted air conditioning system, basic)

1

Refrigerant line

6

Holder (with transmission 711.6)

11

Nut

2

Screw

7

Hydraulic lines

12

Separation point

3

Steering shaft

8

Refrigerant compressor

13

Nut

4

Universal joint

9

Expansion valve

14

Nut

5

Hydraulic line (with transmission 711.6)

10

Screw

15

Nut

 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

Procedure for a damaged or leaky air conditioning system

AH83.30-N-0004-01A

Topical note

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

AH83.30-N-0005-01A

Topical note

Notes on carrying out repair work in the vehicle interior

AH68.00-N-0001-01S

Notes on handling refrigerant R1234yf

AH83.30-P-0003-02A

Notes on handling refrigerant R134a

AH83.30-N-0003-01A

 

Remove/install

1

Remove air filter housing.

Model 907 with engine 642

AR09.10-D-1150TSV

Model 907 with engine 651

AR09.10-D-1150TS

2

Remove brake booster.

AR43.10-D-0350TSR

3

Set steering gear to center position.

AR46.20-D-0500-01TS

 Tensioning nut

*906589002100

 Retainer device

*129589012100

4

Remove bolt (2).

 Screw, steering shaft to steering shaft bearing

*BA46.10-N-1004-05TS

5

Remove steering shaft (3) from universal joint (4).

6

Remove hydraulic line (5) from clutch master cylinder.

Model 907 with engine 651 with transmission 700.790
Model 907 with engine 651 with transmission 711.6

AR25.20-D-1000TSR

7

Remove hydraulic line (5) from holder (6), guide through under hydraulic lines (7) and position outside working area.

Model 907 with engine 651 with transmission 700.790
Model 907 with engine 651 with transmission 711.6


Do not kink the hydraulic line (5).
Otherwise the hydraulic line (5) may be damaged.

8

Discharge air conditioning system.

AR83.30-D-1760TS

9

Remove refrigerant line (1) from refrigerant compressor (8).



Compressor oils (specification 362.1)

BB00.40-P-0362-01A


Seal refrigerant line (1) and refrigerant compressor (8) immediately with suitable stop plugs.
Otherwise the air conditioning system can be damaged.

 Remove screw (10) for this.

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

 Bolt, refrigerant line to refrigerant compressor

*BA83.30-N-1002-01TS

 Record plug

*129589009100

10

Remove refrigerant line (1) from expansion valve (9).



Compressor oils (specification 362.1)

BB00.40-P-0362-01A


Seal refrigerant line (1) and expansion valve (9) immediately with suitable stop plugs.
Otherwise the air conditioning system can be damaged.

 To do so, unscrew nut (11).

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

 Nut, refrigerant line to expansion valve

*BA83.30-N-1001-01TS

 Record plug

*129589009100

11

Remove refrigerant line (1) from connecting point (12).



Compressor oils (specification 362.1)

BB00.40-P-0362-01A


Immediately seal the refrigerant line (1) and connecting point (12) using suitable stop plugs.
Otherwise the air conditioning system can be damaged.

 To do so, unscrew nut (13).

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

 Nut, refrigerant line to refrigerant line

*BA83.30-N-1009-01TS

 Record plug

*129589009100

12

Remove refrigerant line (1) from refrigerant line of rear air conditioning system.

Model 907 with engine 642, 651
with code H08 (Roof-mounted air conditioning system, reinforced)
Model 907 with engine 642, 651
with code HH7 (Roof-mounted air conditioning system, basic)



Compressor oils (specification 362.1)

BB00.40-P-0362-01A


Seal the connections immediately using suitable stop plugs.
Otherwise the air conditioning system can be damaged.

 To do this, unscrew nut.

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

 Nut, refrigerant line to refrigerant line

*BA83.30-N-1009-01TS

 Record plug

*129589009100

13

Remove refrigerant line (1) from firewall.

 To do so, unscrew nut (14).

 M6

*BA00.10-N-1002-01A

14

Remove refrigerant line (1) from longitudinal member.

 To do so, unscrew screw (15).

 Bolt, refrigerant line to bracket

*BA83.30-N-1003-01TS

 M6

*BA00.10-N-1002-01A

15

Remove refrigerant line (1).



Compressor oils (specification 362.1)

BB00.40-P-0362-01A

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

16

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

17

Check for leaktightness when engine is running.

 Visual inspection only.

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

8.8

10.9

BA00.10-N-1002-01A

M6

Galvanized

Nm

9

13

Phosphated

Nm

9

12

 Headless screws/bolts: screws/bolts and nuts, coarse-pitch thread

Number

Designation

12.9

BA00.10-N-1002-01A

M6

Galvanized

Nm

16

Phosphated

Nm

14

 Steering wheel, steering column tube, steering shaft

Number

Designation

Model 907, 910

BA46.10-N-1004-05TS

Screw, steering shaft to steering shaft bearing

Nm

28

 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-1002-01TS

Bolt, refrigerant line to refrigerant compressor

Nm

20

 Air conditioning

Number

Designation

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

BA83.30-N-1003-01TS

Bolt, refrigerant line to bracket

Nm

6

 Air conditioning

Number

Designation

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

BA83.30-N-1009-01TS

Nut, refrigerant line to refrigerant line

Nm

12