Remove/install rail pressure sensor

AR07.04-W-0200H

Remove/install rail pressure sensor

15.10.2018

Engine

470.9 in model 963, 964

Engine

471.9 in model 963, 964

Engine

473.9 in model 963, 964

Modification notes

18.09.2018

Check for proper operation of engine management, added.

Operation step 10

18.09.2018

Notes regarding safety-relevant components, added.

AH00.00-Z-0019-01A

Shown on engine 471.9

1

Rail

2

Electrical connector

B622

Rail pressure sensor

 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

 Warning

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 it with the safety strut.

AS60.80-Z-0001-01A

 Danger

Risk of explosion caused by fuel igniting. Risk of injury to skin and eyes caused by fuel spraying out at high pressure

Keep all ignition sources out of hazard area.
Do not carry out any work on system when it is pressurized.

AS07.16-Z-0001-01B

 Danger

Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel as well as risk of injury to eyes and skin caused by contactwith fuel.

No fires, sparks, open flames or smoking. Pour fuels into suitable and appropriately marked containers only.
Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

Topical note

Notes on tilting the cab

AH60.80-N-0003-01A

Topical note

Notes on avoiding damage through contamination and foreign objects

AH00.00-N-5000-01H

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW

Notes on safety-relevant components

AH00.00-Z-0019-01A

 

Remove/install

1

Tilt cab.

 Installation: Only tilt back cab after the leak test.

2

Remove noise encapsulation.

 Installation: Only install soundproofing after the leak test.

3

Clean engine in the area of the rail pressure sensor (B622).

4

Disconnect electrical connection (2).

5

Unscrew rail pressure sensor (B622) from rail (1).

 Counterhold rail (1) at front on flange with an open end wrench.

 Engine 470.9, engine 471.9, engine 473.9Rail pressure sensor at rail

*BA07.16-N-1034-03A

6

Install in the reverse order



Check

7

Perform engine test run.

 Allow the engine to run at a higher engine speed.

If engine fails to start or only runs for a brief period,



fill the fuel low-pressure circuit.

AR07.16-W-1007H

8

Check area of the rail pressure sensor (B622) for leak tightness.

 Visual inspection.

9

Connect diagnostic system, start XENTRY and perform quick test.

10

Check the engine management for proper operation.

AR07.08-W-1000-01A

11

End XENTRY and remove the diagnostic system.

 Common rail diesel injection system

Number

Designation

Engine 470.9

Engine 471.9## ## up to 032690

BA07.16-N-1034-03A

Rail pressure sensor at rail

Nm

70

70

 Common rail diesel injection system

Number

Designation

Engine 471.9## ## as of 032691

Engine 473.9

BA07.16-N-1034-03A

Rail pressure sensor at rail

Nm

70

70