YDT-35 Operating and Servicing Manual
HL066(EN) ISSUE 1, 05/2015
25
4 Operation
4.1 Before Testing
It is mandatory to clean the injector in an ultrasonic tank/device before installing
on the YDT-35. Failure to do so may cause contamination of the fuel system on
the YDT-35.
Always verify that the Spray Chamber is filled with fluid.
In case it is empty or needs a top up, please refill with fluid using the funnel
provided, or a syringe.
4.2 Fitting & connecting an injector for testing
4.2.1
Mounting an injector
1. Make sure the correct O-ring for the injector under test is fitted into the top of the spray
chamber (Figure 3.8).
2. Mount the injector in the injector clamp.
The Injector Clamp is adjustable for injectors from 17mm to 30.5mm.
3. Push the injector down onto the injector sealing O-ring in the top of the spray chamber
Ensure the injector nozzle is immersed in the spray chamber fluid.
4. Tighten the injector clamp; the spray chamber adjusts automatically to centre on the injector.
4.2.2
High Pressure Supply Pipe
Refer to Figure 4.1
Connect the flexible high pressure pipe (suitable for the injector to be tested) between the high
pressure supply port (item 1) and the Injector supply port (item 2).
The diagram illustrates a typical injector, Injector port positions may vary depending on the
manufacturer/type. Confirm the correct location of supply and backleak ports before connecting.
Standard Fitting on Hose: M14x1.5mm
Extra Fitting available: M12x1.5mm
Tighten the fittings to 25-30Nm.
THIS IS AN UNCONTROLLED DOCUMENT downloaded by Lukas Matuska on 16 Feb 2016
Any technical intervention requires certified Hartridge training. Contact Hartridge Ltd for details.
