Detroit Diesel 4000 Series, Service Manual, Page: 867 / 2706

SERIES 4000 12/16V SERVICE MANUAL
To avoid personal injury when working on the fuel system,
do not smoke, use open flame, or electrical equipment.
Diesel fuel is a combustible fluid. Risk of a fire from sparks
is probable. Perform maintenance in a well ventilated work
area with access to a fire extinguisher.
To avoid personal injury when barring the engine over,
stand clear so that the crankshaft will not unexpectedly
rotate and cause loss of control of barring tool.
3. bar engine several times to blow out any remaining fuel.
4. Inspect sealing surface on cylinder head and injector hole tube.
[a] Clean sealing surface on cylinder head or hole tube if necessary.
[b] If sealing surface on cylinder head or hole tube does not require cleaning, continue
inspection.
All information subject to change without notice.
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