sm0754w0004a

Replace turbocharger and change data record in the engine control (MR) control unit

Typ sm · téma 07.54 · verze 0100 · 2009-11-18

Platí pro: ENGINES 902.9, 906.9 in MODEL 957 with CODE (MS8) natural gas engine

Není k dispozici v jazyce „cs“; zobrazeno v jazyce Angličtina.

Zařazení

Funkční skupina 1 Motor › 07 Příprava směsi › 07.54 Systém dodávky plynu a zapalování — Řada 902 (modely 9**) · Řada 906 (modely 9**) · Řada 957

EinPAS 15 Motor › 15.30 Sání vzduchu/přeplňování › 15.30.51 Výfukové turbodmychadlo — Řada 902 (modely 9**) · Řada 906 (modely 9**) · Řada 957

EinPAS 15 Motor › 15.45 Management motoru › 15.45.11 Řídicí jednotka/relé — Řada 902 (modely 9**) · Řada 906 (modely 9**) · Řada 957

EinPAS 45 Data/informace › 45.20 Informace/opatření › 45.20.40 Servisní opatření — Řada 902 (modely 9**) · Řada 906 (modely 9**) · Řada 957

SM07.54-W-0004A

Replace turbocharger and change data record in the engine control (MR) control unit

16.11.09

ENGINES 902.9, 906.9 in MODEL 957 with CODE (MS8) natural gas engine

Replace turbocharger and change data record in the engine control (MR) control unit

W07.54-1016-06

1 Electrical line

2 Cable tie

3 Cylinder head cover

4 Cap

5 Turbocharger

6 Intake manifold

Operation no. of operation texts or standard texts and flat rates

Category

Op. no.

Operation text

Time

Acc. no.

Code

O

027077

OPERATIONS: CHANGE DATA RECORD AND SOFTWARE IN MR CONTROL UNIT

0,7h

09 930 95

GAS TURBO

O

027078

OPERATIONS: REPLACE CAP OF ELECTRONIC ACCELERATOR ADJUSTING MOTOR

0.1 h

09 930 95

GAS TURBO

O

027079

OPERATIONS: CHECK INSTALLATION OF LINES OF OXYGEN SENSOR

0.1 h

09 930 95

GAS TURBO

O

027080

OPERATIONS: REPAIR INSTALLATION OF LINES OF OXYGEN SENSOR

0.1 h

09 930 95

GAS TURBO

O

027081

OPERATIONS: CHECK GAS INJECTION VALVES

0.8 h

09 930 95

GAS TURBO

O

027082

OPERATIONS: MODIFY GAS INJECTION VALVE (1)

0.2 h

09 930 95

GAS TURBO

O

027083

OPERATIONS: MODIFY GAS INJECTION VALVE (EACH REMAINING)

0.2 h

09 930 95

GAS TURBO

O

027084

OPERATIONS: REPLACE TURBOCHARGER

2,5h

09 930 95

GAS TURBO

Checking

1

Close gas shutoff valves at compressed-gas tanks

AR47.10-W-0005H

Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

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

AS00.00-Z-0005-01A

2

Start engine and run on idle until the engine goes off by itself

In this way residual gas is used up in the lines and components.

3

Switch off ignition

4

Remove cylinder head cover (3)

AR01.20-W-5014H

5

Check part number of gas injection valves

Gas injection valves, which do not have the part number A 906 078 04 49, should be replaced:

Replace gas injection valve.

AR07.54-W-0003H

With regard to return shipment or scrapping of removed parts, please observe the information in your warranty system.

6

Check gas injection valves for firm seating in intake manifold

If loose gas injection valves are detected:

Remove corresponding gas injection valve, insert shim in the valve seat and install gas injection valve again.

AR07.54-W-0003H

7

Install cylinder head cover (3)

Only tilt back the cab after checking the installation of lines of oxygen sensor.

AR01.20-W-5014H

8

Open gas shutoff valves on compressed-gas tanks

AR47.10-W-0005H

9

Replace cap (4) on electronic accelerator adjusting motor

10

Replace turbocharger (5)

Only tilt back the cab after checking the installation of lines of oxygen sensor.

AR09.40-W-6020H

With regard to return shipment or scrapping of removed parts, please observe the information in your warranty system.

11

Check routing of electrical line (1) to oxygen sensor

If the installation of lines does not correspond to the figure or the insulation of the electrical line (1) is damaged:

Insulate electrical line (1), route over the intake manifold (6) and secure with cable ties (2).

Danger!

Risk of injury caused by body parts being pinched or crushed as cab is tilted

Ensure that no one is within the tilting range of the cab as it is being tilted. Always tilt the cab all the way to the end position and secure with the safety strut.

AS60.80-Z-0001-01A

12

Lower cab

Notes on tilting the cab

AH60.80-N-0003-01A

13

Close maintenance flap

14

Connect Star Diagnosis

The download is available as of Star Diagnosis DAS update 11/2009.

The following conditions must be met for carrying out the download:

- Battery voltage 24 V...26 V.

- It is essential that the power supply for the STAR DIAGNOSIS computer remains constant throughout the entire period.

During the download, do not

- Start any other application,

- Perform on-board diagnosis,

- Run or start the engine and

- Disconnect the vehicle battery.

15

Switch on ignition

16

Start Diagnosis Assistance System (DAS)

17

Select "Truck" category

18

Select "Automatic access using model series"

19

Select "Special functions"

20

Select "CNG [compressed natural gas] download"

21

Select the download with the highest number

The download is menu-assisted. Follow all of the instructions given by the Diagnosis Assistance System (DAS).

With the display "The control unit already contains the latest control unit software version" the latest version is already installed and the process is complete.

Likewise the process is complete if the display
"The control unit programming has been carried out successfully." appears.

22

Disconnect Star Diagnosis

Parts ordering notes

Part no.

Designation

Quantity

A 906 078 04 49

Gas injection valve

As required

A 126 262 10 52 05

Washer

As required

A 000 998 69 21 05

Cap

1

A 902 096 09 99 05

Turbocharger

1

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