ar0716w1003h

Remove/install high-pressure line to fuel injector

Type ar · topic 07.16 · version 0600 · 2019-02-22

Applies to: Engine 470.9 in model 963, 964 Engine 471.9 in model 963, 964 Engine 473.9 in model 963, 964

Where it sits

Function group 1 Engine › 07 Mixture formation › 07.16 Diesel injection system common rail — Series 470 (models 9**) · Series 471 (models 9**) · Series 963 · Series 964

EinPAS 15 Engine › 15.45 Engine management › 15.45.13 Line/hose/valve — Series 470 (models 9**) · Series 471 (models 9**) · Series 963 · Series 964

Also applies to engines/gearboxes: 473 9**

AR07.16-W-1003H

Remove/install high-pressure line to fuel injector

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

09.10.2018

Notes regarding safety-relevant components, added.

AH00.00-Z-0019-01A

09.10.2018

Protective cover special tool, added.

Step 13.2

Remove/install high-pressure line to fuel injector

W07.16-1182-08

Shown on engine 470.9

1

High-pressure lines

4

Seal

2

Rail

5

Fuel return line

3

Screw

6

Bracket

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

Switch off ignition.

2

Tilt cab.

Installation: Only tilt back cab after the leak test.

3

Remove soundproofing.

Installation: Only install soundproofing after the leak test.

4

Clean engine in the area of the high-pressure lines (1).

5

Remove compressor resonator box.

Only for engine 471.9, 473.9.
Only when removing high-pressure line (1) from cylinder 5 and 6.

AR13.10-W-5840HA

6

Remove high-pressure lines from fuel high-pressure pump to rail (2)

Only on engine 470.9, 471.9
Only when removing high-pressure line (1) from cylinder 5 and 6.

Engine 471.9 up to engine end number 032690

AR07.16-W-1004H

Engine 470.9, 471.9 as of engine end number 032691

AR07.16-W-1004HA

7

Remove high-pressure lines from fuel high-pressure pump to rail (2)

Only for engine 473.9.
Only when removing high-pressure line (1) from 6th cylinder.

AR07.16-W-1004HA

8

Remove the fuel return line (5) from the rail (2).

Only with engine 470.9, 471.9.
Only when removing high-pressure line (1) from cylinder 5 and 6.

Installation: Install new sealing rings.

Engine 470.9, 471.9Banjo bolt, fuel line to rail (pressure limiting valve return)

*BA07.16-N-1024-03A

9

Remove the fuel return line (5) from the rail (2).

Only for engine 473.9.
Only when removing high-pressure line from 6th cylinder.

Installation: Install new sealing rings.

Banjo bolt, fuel line to rail (pressure limiting valve return)

*BA07.16-N-1024-03A

10

Release screw/bolts (3) on seal (4).

Engine 470.9, 471.9, 473.9Bolt, high-pressure line cover to camshaft case

*BA07.16-N-1005-03A

11

Remove high-pressure lines (1).


Always replace removed high-pressure lines (1).
Leaks can occur otherwise.

Installation: Position high-pressure line (1), first tighten on injection nozzle and then on the rail (2).

Engine 470.9, 471.9, 473.9Connection fitting, high-pressure line to cylinder fuel injector

*BA07.16-N-1002-03A

Engine 470.9, 471.9, 473.9Union nut, high-pressure line to rail

*BA07.16-N-1003-03A

Ring wrench

*000589070300

Box wrench socket

*314589010300

12

Remove screw/bolts (3) and take off seal (4).

Only if seal (4) is leaky.

Installation: Coat inside of seal (4) with engine oil. Do not tighten screws (3) yet.

13.1

Seal openings on the rail (2) with stop plugs.

If during continued work a leak test of the high-pressure fuel circuit takes place.

Engine 470.9, 471.9, 473.9Stop plug to rail

*BA07.16-N-1032-03A

Stop plug

*470589129100

13.2

Seal openings on the rail (2) with protective covers.

If during continued work no leak test of the high-pressure fuel circuit takes place.


Do not re-use the protective covers.
In the event of re-use, contamination can damage the diesel injection system.

Set of protective covers

*470589279100

14

Install in the reverse order

15

Perform engine test run.

Allow the engine to run at a higher engine speed.

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

refill low-pressure fuel circuit.


AR07.16-W-1007H

16

Check area of the high-pressure lines (1) on the rail (2) and seals (4) for leak tightness.

Visual inspection.

Common rail diesel injection system

Number

Designation

Engine 470.9

Engine 471.9## ## up to 032690

BA07.16-N-1002-03A

Connection fitting, high-pressure line to cylinder fuel injector

Nm

40

40

Common rail diesel injection system

Number

Designation

Engine 471.9## ## as of 032691

Engine 473.9

BA07.16-N-1002-03A

Connection fitting, high-pressure line to cylinder fuel injector

Nm

40

40

Common rail diesel injection system

Number

Designation

Engine 470.9

Engine 471.9## ## up to 032690

BA07.16-N-1003-03A

Union nut, high-pressure line to rail

Nm

40

40

Common rail diesel injection system

Number

Designation

Engine 471.9## ## as of 032691

Engine 473.9

BA07.16-N-1003-03A

Union nut, high-pressure line to rail

Nm

40

40

Common rail diesel injection system

Number

Designation

Engine 470.9

Engine 471.9## ## up to 032690

BA07.16-N-1005-03A

Bolt, high-pressure line cover to camshaft case

Nm

15

15

Common rail diesel injection system

Number

Designation

Engine 471.9## ## as of 032691

Engine 473.9

BA07.16-N-1005-03A

Bolt, high-pressure line cover to camshaft case

Nm

15

15

Common rail diesel injection system

Number

Designation

Engine 470.9

Engine 471.9## ## up to 032690

BA07.16-N-1024-03A

Banjo bolt, fuel line to rail (pressure limiting valve return)

M14x1.5

Nm

30

30

Common rail diesel injection system

Number

Designation

Engine 471.9## ## as of 032691

Engine 473.9

BA07.16-N-1024-03A

Banjo bolt, fuel line to rail (pressure limiting valve return)

M14x1.5

Nm

30

30

Common rail diesel injection system

Number

Designation

Engine 470.9

Engine 471.9## ## up to 032690

BA07.16-N-1032-03A

Stop plug to rail

Nm

40

40

Common rail diesel injection system

Number

Designation

Engine 471.9## ## as of 032691

Engine 473.9

BA07.16-N-1032-03A

Stop plug to rail

Nm

40

40

Remove/install high-pressure line to fuel injector
Remove/install high-pressure line to fuel injector
Remove/install high-pressure line to fuel injector
Remove/install high-pressure line to fuel injector

470 589 12 91 00

Stop plug

314 589 01 03 00

Box wrench socket

470 589 27 91 00

Set of protective covers

000 589 07 03 00

Ring wrench

Referenced documents