Common Rail Fuel Injection System is subject to extrembly high pressure (Approximately 1,350 bar)
Never perform any work on injection system with engine running or within 30 seconds after the engine stops.
Always pay attention to safety precaution.
Ensure the absolute cleanliness.
It is not recommended to remove the injectors without any notice.
It must be needed to clean the injector when injector is used again.
Clean the injector in vertical position in an ultra-sound bath.
If necessary, clean the injector body and sealing surface on the nozzle retaining nut also, using a fine cleaning cloth to remove any dirt residue.
Do not remove the protection caps to do that.
The nozzle-shaft must only be cleaned in an ultrasound bath and in a vertical position.
A mechanical cleaning of the nozzle-shaft by wire-brush is not permitted.
