Measure fuel intake pressure upstream of fuel pump

AR07.15-G-2000-05CI

Measure fuel intake pressure upstream of fuel pump

 Warning

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

 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

Note on calculation of tightening torque when using insertion or socket tools with various effective lengths

AH00.00-P-0015-01CW

Engine

457.9, 458.9 in model 000.001

Fuel circuit check values

Number

Designation

ENGINE 457.9, 458.9

BE47.00-N-1004-01E

Fuel intake pressure upstream of fuel pump

Breakaway speed

bar

–0,30...–0,15

 Fuel lines/hoses

Number

Designation

Engine 457.9, 458.9

BA47.25-N-1009-01L

Banjo bolt, fuel line to fuel heat exchanger

Nm

50

1

Remove feed fuel line (3) at fuel heat exchanger (1).

2

 Install test equipment (2) with a test line (2.1), banjo union (5), double banjo bolt M16x1.5 (4) and feed fuel line (3) on fuel heat exchanger (1)   .

 Carefully attach/remove test lines (2.1) to/from  test equipment (2).
Plastic T-piece in  test equipment (2) can otherwise be damaged or break off.

3

Clamp off free end of other test line (2.1) with  clamp (6).

4

 Switch off test equipment (2) and secure.

5

Start engine.

6

Carry out the measurement and read off fuel intake pressure on the  test equipment (2). 

 Perform measurement at maximum governed engine speed.

7

Switch off engine.

8

 Remove test equipment (2) with test line (2.1).

9

Install feed fuel line (3)   .

 Install new sealing rings.