III. Engine Servicing Procedures
U L-Series Diesel 23
Injector Service (continued)
Remove the needle valve from the nozzle.
Clean the seat’s surface and shaft section
using the piece of hardwood from the
cleaning kit or a clean soft cloth dipped in
oil.
Likewise, clean the spray hole with the
special needle also supplied with the
cleaning kit.
Re-wash the injector components to
remove any final debris.
Reassemble the injector.