Specifications

Page 24
Section 4.1
Service Training
09.06
4.1.2.5 CHECKING AND ADJUSTING LEAK-FUEL-FREE INJECTION NOZZLES
CHECKING THE OPENING PRESSURE
NOTE: Use only test oil acc. to ISO 4113 or diesel fuel for the test.
CAUTION: When checking injection nozzles, take care that the fuel jet does not hit the hands. Due to the
high pressure, the fuel can penetrate the skin and cause severe injuries.
- Install the injection nozzle on the nozzle tester.
- Press the lever down slowly. Read the pressure at the start of fuel ejection and adjust the pressure, if
necessary, by changing the shims.
NOTE: After checking and adjustment, the pressure in the spring chamber in the injection nozzle must
be reduced to zero before the injection nozzles are installed in the engine, in order to prevent
possible starting difficulties of the engine.
CAUTION! During the checking procedure, the tension nut must only be unscrewed and re-tightened
according to tightening instructions. Disassembling of the leakage fuel free injection nozzle
is not permitted during the warranty period.