Remove/install pressure line from high-pressure pump/fuel distributor

AR07.03-D-7000WE

Remove/install pressure line from high-pressure pump/fuel distributor

18.04.2019

Engine

651 in model 900

Engine

651.955/956/957 in model 906

Modification notes

26.06.2015

Altered grommet, added

Operation step 6

Shown on model 900

1

High pressure pipe

5

Mounting clip

9

Rail

2

Screw

6

Screw

10

engine wiring harness cable duct

3

Connection fitting

7

Bracket

M41/3

High pressure pump

4

Electrical line

8

Fuel line

 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-0001-01A

 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

Notes about Common-Rail components

AH07.16-P-0002-01TX

 

Remove/install

1

Remove charge air distributor

AR09.41-D-8681WE

2

Unfasten engine wiring harness cable duct (10)

AR01.00-D-2411-01WE

3

Remove screws (2)

4

Remove screw/bolt (6) and push bracket (7) with fuel line (8) to one side

Engine 651 in model 900
Engine 651.955/956/957 in model 906
except code MS3 (Engine version EURO 3)

5

Unclip retaining clip (5) of the electrical line (4) on the high-pressure line (1)

Engine 651 in model 900
Engine 651.955/956/957 in model 906
except code MS3 (Engine version EURO 3)

6

Unscrew and remove high-pressure line (1) from the high-pressure pump (M41/3) and rail (9)


After disassembly of high-pressure line (1), close off the connection fitting on rail (9) and the connection fitting (3) at high-pressure pump (M41/3) and ensure the greatest cleanliness.
The high pressure components will be damaged otherwise.

 Stop plugs are available as a replacement part of the diesel injection system, see EPC Group 07.
Repeated usage of stop plugs is not allowed.
Counterhold high-pressure line (1) to avoid it from coming loose as the connection fitting (3) is being loosened.

 Installation: Install high-pressure line(1) free of tension.

 Union nut, pressure line to high-pressure pump/rail

*BA07.16-N-1019-01A

 Box wrench bit

*000589680300

7

Install in the reverse order

 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

8

Perform an engine test run and check engine for leaks in the area of the high-pressure line (1) for leaktightness

 Common rail diesel injection (CDI)

Number

Designation

Engine 651 in model 900

Engine 651 in model 906

BA07.16-N-1019-01A

Union nut, pressure line to high-pressure pump/rail

Stage 1

Nm

7

7

Stage 2

Nm

33

33