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Page 28

Section 4.1

Service Training

09.06

BUZZING AND SPRAY PATTERN TEST

- Switch-off pressure gauge of tester.

- The buzzing test permits audible checking for ease of

movement of the nozzle needle in the nozzle body. New

injectors compared to used ones have a different buzzing

sound.

- This buzzing sound deteriorates by wear in the area of

the needle seat. If there is no buzzing of a nozzle despite

cleaning, it must be replaced by a new one.

- A used injector must produce an audible buzzing sound

upon rapid actuation of the hand lever and provide for a

weil atomised spray pattern. The spray pattern may

differ noticeably from that of a new injector.

RE-INSTALLATION OF INJECTORS

- Place new slightly greased sealing rings onto injectors

and install injectors.

NOTE: This notch on the injectors must face away

from the claws.

- Place claws in place and tighten bolts hand tight.

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Deutz 1012 Spezifikationen Seite 36