Test injection nozzles

AR07.03-D-6712B

Test injection nozzles

28.9.12

ENGINE

601.943

1

Injection nozzle

2

Test equipment

3

Valve

A

Spray pattern closed = good

B

Spray pattern stringy = bad

 

Remove/install

1

Remove injection nozzles

 Danger !

Risk of explosion caused by test oil being ignited. Risk of injury to skin and eyes caused by test oil streaming out

Keep all ignition sources out of the hazard area. Only check injection nozzles in the nozzle testing device. Do not touch the injection nozzle stream.

AS07.03-Z-0001-01A

2

Connect injection nozzle (1) to test equipment (2).

3

Close valve (3) and pump through injection nozzle (1) on the test equipment (2) 5 times forcefully.



Check

4

Check spray pattern and chatter of injection nozzle

AR07.03-D-6712-02B

 Tester

*000589142700

If the spray pattern is broadly scattered, too wide and stringy (B)



Repair injection nozzle (1)

5

Check ejection pressure of injection nozzle (1)

AR07.03-D-6712-01B

 The difference in the ejection pressure of the injection nozzles on an engine must not exceed 5 bar.

Injection nozzles/ejection pressure

*BE07.03-N-1001-01C

Pressure difference of injection nozzles within engine max.

*BE07.03-N-1002-01C

If the specified values are not reached



Repair injection nozzles

6

Install in the reverse order

Inspection and setting of injection nozzles

Number

Designation

ENGINE 601.943

BE07.03-N-1002-01C

Pressure difference of injection nozzles within engine max.

bar

5

Inspection and setting of injection nozzles

Number

Designation

ENGINE 601.943

BE07.03-N-1001-01C

Injection nozzles/ejection pressure

Adjustment value

bar

115–125

Min. value of used injection nozzles

bar

100