6C - 22 ENGINE FUEL
Second nozzle opening pressure adjustment
If the second nozzle opening pressure is not as specified,
disassemble the nozzle from the nozzle holder and
replace the shim until the pressure is as specified.
CAUTION:
• Because the second opening pressure changes
when the first opening pressure changes, the
second opening pressure must be adjusted when
the first opening pressure changes.
• Use a micrometer to measure shim thickness.
• Second nozzle opening pressure adjusting shims
Part No. Thickness (mm)
8-9711-6034-0 0.40
8-9711-6035-0 0.50
8-9711-6037-0 0.52
8-9711-6039-0 0.54
8-9711-6041-0 0.56
8-9711-6043-0 0.58
8-9711-6044-0 0.59
Final inspection
1. Remove the dial gauge, nut and dial gauge holder.
2. Remove the adjustment retaining nut and gasket.
3. Install the original retaining nut, confirm that the pins
are inserted fully into the nozzle, and then hand-tighten
the retaining nut. Then, tighten the original retaining
nut to the specified torque.
Torque: 59 - 79 N∙m (6.0 - 8.0 kg∙m)
4. Set the nozzle holder to the nozzle tester and check
first nozzle opening pressure, spray condition, seat oil
tightness and each part for oil leaks.
5. When replacing the nozzle, replace the nozzle, lift
piece, pins and spacer as a set with the nozzle service
kit.
CAUTION:
Pre-lift will not be as specified if only the nozzle is
replaced.
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040LX009.tif
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