PERFORM OPENING PRESSURE TEST
1. Connect injection nozzle to D01109AA Nozzle Tester
(Y900) (A), using No. Y900-2A Fuel Line (B) and
Y900-7 and Y90-15 Straight Adapters (C). Y900-21 90°
Adapter may also be used. Place a glass beaker (D)
2. Pump handle several times to flush out nozzle fittings.
3. Expel air from nozzle by operating pump handle
several strokes. Then raise pressure until valve opens.
4. Recheck by completely releasing pressure, then
gradually building pressure until valve opens.
IMPORTANT: Nozzle tester should be checked
periodically for accuracy.
Testing Nozzle Opening Pressure