Specifications

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.