ap4720b0730d

Clean filter element of fuel prefilter

Type ap · topic 47.20 · version 0300 · 2016-02-12

Applies to: Cumbustion engine 374, 376, 377 with Vehicle 382, 384, 688, 693, 695

Where it sits

Function group 1 Engine › 47 Fuel system, powertrain energy supply › 47.20 Fuel pump, filter — Series 374 · Series 376 · Series 382 · Series 384 · Series 688 · Series 693 · Series 695

EinPAS 16 Fuel/power supply to engine › 16.10 Fuel supply › 16.10.41 Filter/water separator — Series 374 · Series 376 · Series 382 · Series 384 · Series 688 · Series 693 · Series 695

Also applies to engines/gearboxes: 377 ***

AP47.20-B-0730D

Clean filter element of fuel prefilter

12.02.16

Cumbustion engine 374, 376, 377 with Vehicle 382, 384, 688, 693, 695

Clean filter element of fuel prefilter

B07.00-0023-01

1 Manual pump

2 Sealing ring

3 Filtering element

4 Spring

5 Bowl

Clean filter element of fuel prefilter

B07.00-0007-01

A Starter switch

B Injection pump lever

Danger!

Safety measures to deal with fuel

It is not allowed to smoke, to start fires, sparks, open flames. Only keep fuel in appropriate recipients duly correspondingly identified. When handling fuel, use appropriate protective equipment and clothes

AS47.00-B-0001-01A

1

Externally clean the fuel pre-filter

2

Loosen the knurled nut, displace the fastening clamp to a side and remove the observation bowl (5) with the filtering element (3), the spring (4) and the sealing ring (2)

Replace the sealing ring (2)

3

Wash the observation bowl (5) and the filtering element (3) with clean Diesel oil

Replace the filtering element (3) if it is too dirty or damaged.

The pre-filter observation bowl (5) has to be replaced if presenting damaged sealing surface.

4

Place the filtering element (3) with the spring (4) on the pre-filter observation bowl (5), correctly position the new sealing ring (2) on the edge of the observation bowl (5).

Lightly oil the new sealing ring (2) with engine oil. Do not utilize tools to tighten the knurled nut. Before tightening the nut, observe the correct seating of the observation bowl (5) and of the sealing ring (2).

5

Install the observation bowl (5) and correctly position the fastening clamp and tighten manually the knurled nut

6

Bleed the air from the fuel system

On engines with filter without the vent, loosen the pump gallery outlet plug approximately 1/2 of one turn.

AP47.00-B-1720-01E

Danger!

Risk of accident due to vehicle unintentional move when the engine is running. Risk of injuries due to crushing and burns caused by contact during the startup procedure or with the engine running

Assure vehicle against unintentional move. Use tight fitting and closed work clothes. Do not touch heated or running parts.

AS00.00-B-0005-01A

7

Run the engine and check the pre-filter for tightness

On vehicles with advanced cab and, tilted, actuate the starter switch () to start the engine. To stop the engine, move the injection pump lever (B) to the stop position.

Referenced documents