Measure fuel pressure downstream of fuel filter · ar0715g200002dd · Mercedes-Benz WIS

AR07.15-G-2000-02DD	Measure fuel pressure downstream of fuel filter
 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

Check values for fuel pressure

Number	Designation			Engine 900.9, 904.9, 924.9, 925.9, 926.9, engine 902.9, 906.9 except natural gas engine
BE47.00-N-1001-01B	Fuel pressure downstream of fuel filter	Idling speed	bar	4,3
		Breakaway speed	bar	4,0...6,5

 Fuel lines/hoses

Number	Designation		Engine 900.9, 904.9, 924.9, 925.9, 926.9, engine 902.9, 906.9 except natural gas engine
BA47.25-N-1006-01J	Banjo bolt, fuel line (flame starting system) to banjo bolt and valve	Nm	15

123 589 04 21 18

High-pressure hose

541 589 00 91 00

Adaptation parts

541 589 02 21 00

Tester

G07.15-3193-09

Shown on engine 900.9

Measure

1	Remove cover (1).

2	Remove lower screw from gearshift bracket on cylinder head.

Only if installed.

3	Disconnect electrical connection of engine wiring harness (2) and fuel temperature sensor (6).

 Collect fuel which runs out in a suitable container.

4	Attach removed fuel temperature sensor (6) to electrical connection for electrical engine wiring harness (2) and fasten to engine.

5	 Install adapter (5.1) with sealing ring on crankcase.

6	 Install banjo union (5.2),  high-pressure hose (4) and  test equipment (3) at  adapter (5.1).

7	Remove fuel line for FLA on fuel filter and close off bore.

Only for FLA.

 Allow escaping fuel to drain into a suitable container.

8	Start engine and run.

 See information from body manufacturer.

9	Perform measurement and read off fuel pressure at  test equipment (3).

 Perform measurement fort idle speed or for maximum governed rpm.

10	Switch off engine.

11	 Remove adapter (5.1),  high-pressure hose (4) and  test equipment (3).

 Allow escaping fuel to drain into a suitable container.

12	Disconnect electrical connection from fuel temperature sensor (6).

13	Install fuel temperature sensor (6) and connect up electrical connection of engine wiring harness (2) again.

14	Attach fuel line for the FLA with new sealing ring on the fuel filter  .

Only for FLA.

15	Tighten lower screw from gearshift bracket on cylinder head.

Only if installed.

16	Install cover (1).

ah0000p001501cw Oplysning om beregning af tilspændingsmoment ved anvendelse af indstiksværktøj eller påsætningsværktøj af forskellig længde
as0000z000501a Fare for ulykke ved automatisk igangsætning når motoren kører. Fare for personskade på grund af knusning og forbrænding, hvis der arbejdes mens motoren startes eller kører
as4700z000101a Fare for eksplosion ved tænding, fare for forgiftning ved indånding og indtagelse af brændstof samt fare for hud- og øjenskader ved kontakt med brændstof