ar0716w100401h

Remove high-pressure line to rail

Type ar · topic 07.16 · version 0100 · 2019-02-04

Applies to: Engine 470.9, 471.9, 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-1004-01H

Remove high-pressure line to rail

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

Notes on safety-relevant components

AH00.00-Z-0019-01A

Engine

470.9, 471.9, 473.9 in model 963, 964

Remove high-pressure line to rail
Remove high-pressure line to rail
Remove high-pressure line to rail

314 589 01 03 00

Box wrench socket

470 589 27 91 00

Set of protective covers

000 589 07 03 00

Ring wrench

Remove high-pressure line to rail

Comply with the removal sequence.
Otherwise, contamination may damage the diesel injection system.

1

Spray the deposits (arrows) on all union nuts (9, 10) abundantly with brake cleaner, and let it soak in.


to link the deposits (arrows).



2

Loosen the union nuts (10) on the high-pressure fuel pumps (8), slide them upwards and secure them in place.


Counterhold the supports of the high-pressure lines (1) on the high-pressure fuel pump (8) .



3

Blow out deposits (arrows) completely with compressed air.


W07.16-A010-76

4

Loosen the union nuts (9) on the rail (4), slide them upwards and secure them in place.

5

Blow out deposits (arrows) completely with compressed air.

6

Remove the high-pressure lines (1) from the bracket (6) and carefully pull them upwards.

7

Seal openings on rail (4) and on fuel high-pressure pump (8) with protective covers.

Do not reuse the protective covers.
In the event of reuse, soiling may damage the diesel injection system.

Referenced documents