Technical Information
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2.2.13. Removal, dismantling and cleaning
z
Unscrew delivery pipe at nozzle holder
and at the injection pump.
z
Remove leak-off pipe.
z
Release union screw of nozzle holder
with special wrench. (EI.03004-0225)
z
Remove nozzle holder with gasket from
the cylinder head.
Note for cleaning nozzles
z
Clean nozzle body externally from soot and carbon, When cleaning several nozzles at the same
time, make sure nozzle bodies and needles are not mixed up. Visually inspect needle and body.
z
Cleaning is useless if the seat of the needle is indented or the pintle is damaged and the nozzle
should be replaced.
z
Clean annular groove with scraper over full circumference. Wash out dislodged carbon deposits
and dirt.
z
Scrape needle seat with cleaning cutter, Dip cutter in test oil before use. The cutter can also be
clamped in a lathe.
z
Polish needle seat with wooden cleaning tool, preferably by chucking the needle in a lathe at the
pintle end.
z
Clean the spray holes of nozzles by chucking a cleaning needle of suitable diameter in the collect.
If the carbon deposits in the spray holes cannot be removed by rotating and pressing, have the
needle project only slightly from the collect and drive out the carbon by lightly tapping on the tool.
z
Before reassembly thoroughly wash nozzle body and needle in clean test oil.
z
Hold the needle at the pintle end only ; to avoid corrosion, do not touch the lapped surfaces of the
needle with you fingers.
z
Thoroughly clean all other parts of the nozzle holder with clean fuel.
z
Check nozzle discharge pressure in nozzle tester.
The edge-type filter should not be pressed into the nozzle holder by more than about 5mrn. If this
depth is exceeded the injector must be replaced.
<Operating pressure>
CAUTION :
Do not hold your hands under the
fuel jet, as there is a rise of injury.
Do not inhale the atomized oil fuel.
If possible, work under an
extraction system.
New nozzle holder
300 + 8 kg/cm
2
Used nozzle holder
285 + 8 kg/cm
2
EA6O5007
EA6O5008
Содержание P158LE -III
Страница 160: ...Appendix 157 1 P158LE Generator engine assembly EH5OM013 ...
Страница 161: ...Appendix 158 2 P180LE Generator engine assembly EH5OM014 ...
Страница 162: ...Appendix 159 3 P222LE Generator engine assembly EH5OM015 ...
Страница 163: ...Appendix 160 4 PU158TI Power unit engine assembly EH5OM016 ...
Страница 164: ...Appendix 161 5 PU180TI Power unit engine assembly EH5OM017 ...
Страница 165: ...Appendix 162 6 PU222TI Power unit engine assembly EH5OM018 ...