Remove/install coolant feed line for high-pressure exhaust gas turbocharger

AR20.20-S-0004EA

Remove/install coolant feed line for high-pressure exhaust gas turbocharger

25.03.2019

Engine

654.9 in model 447

1

Coolant feed line for high-pressure exhaust gas turbocharger

4

Oil feed line

6

Low-pressure exhaust gas turbocharger

2

Screw

5

High-pressure exhaust gas turbocharger

7

Screw

3

Screw

1

Coolant feed line for high-pressure exhaust gas turbocharger

8

O-ring

9

O-ring

 Caution

Risk of injury to skin and eyes due to handling of engine oil. Risk of poisoning caused by swallowing engine oil

Wear protective gloves, protective clothing and safety glasses.
Do not fill engine oil into beverage containers.

AS18.00-Z-0001-01A

 Caution

Risk of injury caused by scraping or cutting body parts on sharp vehicle parts

Always wear protective gloves when working on or near sharp and non-deburred vehicle parts.
Deburr repair panels.

AS00.00-Z-0017-01A

Topical note

Notes on threaded connections fastened using a tightening angle-based tightening process

AH00.00-P-0020-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A



Remove

1

Remove bleed line from coolant feed line for high-pressure exhaust gas turbocharger (1).

AR20.20-S-0003EA

2

Remove screw (3) .

3

Remove screws (2).

4

Remove oil feed line (4) from high-pressure exhaust gas turbocharger (5) and from low-pressure exhaust gas turbocharger (6) and place to one side.

5

Seal opening in high-pressure exhaust gas turbocharger (5) and in low-pressure exhaust gas turbocharger (6) using suitable stop plugs.

 Record plug

*129589009100

6

Remove O-rings from oil feed line (4).

 Assembly tool

*000589936300

7

Seal oil feed line (4) using suitable stop plugs.

 Record plug

*129589009100

8

Remove screw (7).

9

Remove coolant feed line for high-pressure exhaust gas turbocharger (1) upwards.

10

Seal opening in high-pressure exhaust gas turbocharger (5) using suitable stop plug.

 Record plug

*129589009100

11

Seal coolant feed line using suitable stop plug.

 Record plug

*129589009100

12

Remove O-rings (8, 9) from coolant feed line for high-pressure exhaust gas turbocharger (1).

If the coolant feed line for high-pressure exhaust gas turbocharger (1) is not replaced.

 Assembly tool

*000589936300

13

Seal coolant feed line for high-pressure exhaust gas turbocharger (1) using suitable stop plugs.

If the coolant feed line for high-pressure exhaust gas turbocharger (1) is not replaced.

 Record plug

*129589009100



Install

14

Remove stop plugs from coolant feed line for high-pressure exhaust gas turbocharger (1).

If the coolant feed line for high-pressure exhaust gas turbocharger (1) has not been replaced.

15

Attach new O-rings (8, 9) to the coolant feed line for high-pressure exhaust gas turbocharger (1).

 Assembly tool

*000589936300

16

Remove stop plug from the coolant feed line.

17

Remove stop plug from the opening in the high-pressure exhaust gas turbocharger (5).

18

Position coolant feed line for high-pressure exhaust gas turbocharger (1) at installation location.

19

Tighten new screw (7) lightly by hand.

20

Remove stop plugs from the oil feed line (4).

21

Attach new O-rings to the oil feed line (4).

 Assembly tool

*000589936300

22

Remove stop plug from the opening in the high-pressure exhaust gas turbocharger (5) and in the low-pressure exhaust gas turbocharger (6).

23

Position oil feed line (4) on the high-pressure exhaust gas turbocharger (5) and on the low-pressure exhaust gas turbocharger (6).

24

Screw in new screws (2).

 Screw, coolant feed line and oil feed line to high-pressure exhaust gas turbocharger

*BA09.40-N-1004-02EA

 Screw, oil feed line to low-pressure exhaust gas turbocharger

*BA09.40-N-1005-02EA

25

Tighten new screw (7).

 Screw, coolant feed lines for high-pressure exhaust gas turbocharger and low-pressure exhaust gas turbocharger to coolant feed line

*BA20.20-N-1003-02EA

26

Screw in new screw (3).

 Screw, oil feed line to low-pressure exhaust gas turbocharger

*BA09.40-N-1005-02EA

27

Attach bleed line to coolant feed line for high-pressure exhaust gas turbocharger (1).

AR20.20-S-0003EA

 Only install engine cover after the leak test.



Check

28

Check and correct engine oil level.



AP18.00-S-0101EG

 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

29

Perform engine test run.

30

Check coolant circuit for leak tightness in the area of the coolant feed line for high-pressure exhaust gas turbocharger (1).

31

Check oil circuit for leak tightness in the area of the high-pressure exhaust gas turbocharger (5) and of the low-pressure exhaust gas turbocharger (6).

32

Install engine cover.

AR01.10-S-2405EA

 Turbocharger

Number

Designation

Engine 654.9 in model 447

BA09.40-N-1004-02EA

Screw, coolant feed line and oil feed line to high-pressure exhaust gas turbocharger

Stage 1

Nm

8

Stage 2

°

30

 Turbocharger

Number

Designation

Engine 654.9 in model 447

BA09.40-N-1005-02EA

Screw, oil feed line to low-pressure exhaust gas turbocharger

Stage 1

Nm

8

Stage 2

°

30

 Engine radiator, coolant hoses and lines

Number

Designation

Engine 654.9 in model 447

BA20.20-N-1003-02EA

Screw, coolant feed lines for high-pressure exhaust gas turbocharger and low-pressure exhaust gas turbocharger to coolant feed line

Stage 1

Nm

8

Stage 2

°

30