Remove/install fuel pumps

AR47.20-W-5713A

Remove/install fuel pumps

16.12.09

8.7.08

Value altered: bolt, poly-V belt guide pulley to fuel pump

*BA13.25-N-1003-01C

 

Remove/install

Danger!

Risk of explosion caused by fuel igniting, risk of poisoning caused by inhaling and swallowing fuel and risk of injury to eyes and skin caused by contact with fuel

No fire, sparks, open flames or smoking.
Pour fuels only into suitable and appropriately marked containers.

Wear protective clothing when handling fuel.

AS47.00-Z-0001-01A

 Danger!

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 with the safety strut.

AS60.80-Z-0001-01A

1.1

Tilt cab

Model 374, 375, 673, 674, 676, 950, 952, 953, 954, 957, 958, 970, 972, 974, 975, 976

 Installation: Tilt the cab back only after the leak test has been conducted



Notes on tilting the cab

AH60.80-N-0003-01A

1.2

Remove service cover

Model 668, 670

2

Open lid on fuel tank

3

Remove soundproofing on left at frame

 Not on model 668, 670

4

Slacken poly V-belt (1) and take it off the belt pulley of the coolant pump

 Do not remove poly-V-belt (1).

Model 374, 375, 673, 674, 676, 950, 952, 953, 954, 958, 970, 972, 974, 975, 976

AR13.22-W-1202A

Model 668, 670

AR13.22-D-1202D

Model 957
Only slacken and remove the poly-V-belt (1) for the alternator and coolant pump.

AR13.22-W-1202C

5

Detach guide pulley (2) at fuel pump (3)

 Only on vehicles with code (H03) Air conditioning in front end.

Check guide pulley (2) for wear, and replace if necessary.



*BA13.25-N-1003-01C

6

Unscrew fuel filter cap (6) from fuel filter housing

 When pulling out the fuel filter cap (6) the fuel from the fuel filter housing flows back into the fuel tank.

 Installation: Install new O-ring (5).



*BA47.20-N-1001-02A

7

Detach fuel line (7) at fuel pump (3)

 Collect escaping fuel.

 Installation: Install new sealing rings (8).



*BA47.20-N-1002-01A

8

Remove the fuel pump (3)

 Collect escaping fuel.

Installation: While fitting the fuel pump (3), the driver at the fuel pump (3) must not contact the dowel pin of the camshaft.



*BA47.20-N-1001-01A

9

Remove gasket (4)

 Clean sealing surfaces.

 Installation: Replace seal (4).

10

Install in the reverse order

 Danger!

Risk of accident caused by vehicle starting off by itself when engine is running. Risk of injury caused by contusions and burns during starting procedure or when working near the engine as it is running

Secure vehicle to prevent it from moving by itself.
Wear closed and snug-fitting work clothes.
Do not touch hot or rotating parts.

AS00.00-Z-0005-01A

11

Start the engine and bleed the fuel system

 The fuel system is bled automatically. Run the engine for approx. 1 minute. If the engine stops or does not start, repeat starting procedure after a break of 2 minutes.

12

Switch off engine and check for leaks

 Visual inspection.

Number

Designation

Engines
900.9, 902.9, 904.9, 906.9

BA13.25-N-1003-01C

Bolt, poly-V-belt guide pulley to fuel pump

Nm

90

Number

Designation

Engine
900.9, 904.9,

Engine
902.9, 906.9
without code MS8

BA47.20-N-1001-01A

Bolt, fuel pump to crankcase

Nm

25

BA47.20-N-1002-01A

Banjo bolt, fuel line to fuel pump

Nm

45

Number

Designation

Engine
904.9, 906.9

BA47.20-N-1001-02A

Cover on fuel filter housing

Nm

25