ap4720s0780e

Replace fuel filter

Type ap · topic 47.20 · version 0201 · 2015-08-11

Applies to: Engine 651 in model 447

Where it sits

Function group 1 Engine › 47 Fuel system, powertrain energy supply › 47.20 Fuel pump, filter — Series 447 · Series 651

EinPAS 16 Fuel/power supply to engine › 16.10 Fuel supply › 16.10.41 Filter/water separator — Series 447 · Series 651

AP47.20-S-0780E

Replace fuel filter

11.8.15

Engine

651 in model 447

Modification notes

20.10.14

Work procedure revised.

Replace fuel filter

S47.20-4546-09

Shown with code KL5(Fuel filter with water separator)

1

Electrical connector

3

Fuel filter

5

Drain hose

2

Fuel hose

4

Clip

6

End piece

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

Remove/install

1

Remove engine cover

AR01.10-S-2405E

Installation: Only install engine cover after the leak test.

2

Disconnect electrical connection (1)

3

Detach fuel hoses (2) from fuel filter (3)

Installation:
Replace clamps.
Prevents leakage.

Pay attention to the installation position of the fuel hoses (2).
Allow escaping fuel to drain into a suitable container.
Seal connections.

Pliers for click clamps

*171589003700

Record plug

*129589009100

4

Open clip (4)

5

Remove fuel filter (3) with drain hose (5)

Installation: Check that the fuel filter (3) is correctly seated.

6

Detach end piece (6) from drain hose (5)

Installation: Attach the end piece (6) to the drain hose (5) of the new fuel filter (3).

7

Install in the reverse order

Check

8

Switch on ignition


Switch on the ignition for at least 15 s before starting the engine to ensure that at engine start there is sufficient fuel at the high-pressure pump.
This avoids damage to the high-pressure pump.

Danger !

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

9

Start engine and check leaktightness

Perform a visual inspection only and then switch off the engine.

10

Confirm replacement of the fuel filter (3) in the maintenance booklet or in the DSB

Replace fuel filter
Replace fuel filter

129 589 00 91 00

Record plug

171 589 00 37 00

Pliers for click clamps

Referenced documents