Remove/install fuel pump and fill level sensor

AR47.20-D-7000TSF

Remove/install fuel pump and fill level sensor

06.03.2020

Model

907 with engine 642, 651

Model

907.1/2/6 with engine 654.9

Model

910

Modification notes

28.11.2019

Information added.

Operation steps 7, 8

28.11.2019

Method extended

Operation step 6

Shown on model 910 with engine 651 and code H12 (hot-water auxiliary heater)

1

Electrical connector

5

Lock

9

Sealing ring

2

Fuel line

6

Locking ring

10

Catch

3

Fuel line

7

Cutouts

11

Electrical wiring harness

4

Fuel line

8

Fuel pump (FP)

Shown on model 907 with engine 651 and code H12 (hot-water auxiliary heater)

12

Retaining clips

13

Retaining clips

14

Bracket

A

Lock incorrect

B

Lock correct

 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 avoiding damage through contamination and foreign objects

AH00.00-P-5000-01A

Topical note

Information on preventing damage to electronic components due to electrostatic discharge

AH54.00-P-0001-01A

 

Remove/install

1

Remove fuel tank.

Model 910

AR47.10-D-4100TS

Model 907 with engine 642, 651
Model 907.1/2/6 with engine 654.9

AR47.10-D-4100TSR

2

Release electrical connector(1) and disconnect.

3

Disconnect the fuel lines (2, 3).

AR47.25-D-4100-01TS


Catch fuel running out with suitable vessel.
Damage will otherwise occur.

 Seal the fuel lines (2, 3).

 Commercially available tools
Collection bowl

 Record plug

*129589009100

4

Disconnect the fuel line (4).

Model 907 with engine 642, 651
with code H11 (Auxiliary hot-air heater)
Model 907 with engine 642, 651
with code H12 (Auxiliary hot-water heater)
Model 907 with engine 642, 651
with code HZ9 (Heater booster)
Model 907 with engine 642, 651
with code KL1 (Sender uni (fuel) for auxiliary heater)
Model 907.1/2/6 with engine 654.9
with code H11 (Auxiliary hot-air heater)
Model 907.1/2/6 with engine 654.9
with code H12 (Auxiliary hot-water heater)
Model 907.1/2/6 with engine 654.9
with code HZ9 (Heater booster)
Model 907.1/2/6 with engine 654.9
with code KL1 (Sender uni (fuel) for auxiliary heater)
Model 910
with code H12 (Auxiliary hot-water heater)
Model 910
with code HZ9 (Heater booster)
Model 910
with code KL1 (Sender uni (fuel) for auxiliary heater)

 To do this, actuate lock (5).

 Seal the fuel line (4).

 Commercially available tools
Collection bowl

 Record plug

*129589009100

5

Remove bracket (14).

Model 907 with engine 642, 651
Model 907.1/2/6 with engine 654.9

 Installation: Check bracket (14) for damage.

If damage is present:



Install new bracket (14).



Clean

6

Clean surrounding area of locking ring (6) at fuel pump (8) and fuel tank.

Assembly cleaner

*BR00.45-Z-1028-04A

7

Release locking ring (6).

 To do this, position  claw wrench on cutouts (7) and turn locking ring (6) counterclockwise.

 Installation: Make sure that locking ring (6) is locked correctly (Picture B).

 WIS Service Media
wsm://04_ 201901_10

 Claw-type wrench

*001589000700

8

Remove fuel pump (8).

 Installation:
Do not apply any lubricant to sealing ring (9).
Otherwise, leaks may occur.

 Fill level sensor is fastened to the fuel pump (8).

 Installation: Install new sealing ring (9).
Observe installation position of the catch (10).

9

Remove fuel lines (2, 3).

If new fuel lines (2, 3) are installed.

 Model 910
To do this, unclip fuel lines (2, 3) from the fuel tank.

 Model 907 with engine 642, 651
Model 907.1/2/6 with engine 654.9
To do this, unclip fuel lines (2, 3) from retaining clamps (12).

10

Remove fuel line (4).

Model 907 with engine 642, 651
with code H11 (Auxiliary hot-air heater)
Model 907 with engine 642, 651
with code H12 (Auxiliary hot-water heater)
Model 907 with engine 642, 651
with code HZ9 (Heater booster)
Model 907 with engine 642, 651
with code KL1 (Sender uni (fuel) for auxiliary heater)
Model 907.1/2/6 with engine 654.9
with code H11 (Auxiliary hot-air heater)
Model 907.1/2/6 with engine 654.9
with code H12 (Auxiliary hot-water heater)
Model 907.1/2/6 with engine 654.9
with code HZ9 (Heater booster)
Model 907.1/2/6 with engine 654.9
with code KL1 (Sender uni (fuel) for auxiliary heater)
Model 910
with code H12 (Auxiliary hot-water heater)
Model 910
with code HZ9 (Heater booster)
Model 910
with code KL1 (Sender uni (fuel) for auxiliary heater)
If a new fuel line (4) is installed.

 To do this, unclip fuel line (4) from retaining clamps (13) and fuel tank.

11

Remove electrical wiring harness (11).

If new electrical wiring harness (11) is installed.

 Model 907 with engine 642, 651
Model 907.1/2/6 with engine 654.9
To do this, unclip electrical wiring harness (11) from retaining clamps (12).

 Model 910
To do this, unclip electrical wiring harness (11) from fuel tank.



Clean

12

Clean sealing surfaces at fuel pump (8) and fuel tank.

 For this purpose, use lint-free rags.

13

Install in the reverse order.

Repair materials

Number

Designation

Order number

BR00.45-Z-1028-04A

Assembly cleaner

A 000 986 56 01