Detroit Diesel 4000 Series, Service Manual, Page: 1370 / 2706

SERIES 4000 12/16V SERVICE MANUAL
To avoid personal injury, use care when dealing with fluids
under pressure. Fluids under pressure have enough force
to penetrate the skin. These fluids can cause a minor cut
or opening in the skin. If injured by escaping fluid, see a
doctor immediately. Serious infection or adverse reaction
to the fluid can result if not treated immediately.
3. Ensure that delivery valve opening pressure is 2.50 bar ± 0.25 bar.
[a] If values are outside specified limits, replace delivery valve.
[b] If values are within specified limits, continue inspection.
NOTE:
Opening pressure is marked in valve seat.
NOTE:
Earlier engines had delivery valves without O-rings and opened at 1.50 bar ± 0.25 bar.
All information subject to change without notice.
C -1224
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