(3) According to the plunger and determine whether the sealing can
A. plunger dual use of clean diesel clean, it will be pulled out of Inner plunger from the length of the plunger 1 / 2 around the plunger sets of hands were blocking the top of the axial hole and into the hole (GPS Hole, a small amount of oil into), and drop into the hole in the back of diesel, and then the plunger into the chute at the back of the hole slowly advancing. In promoting the process, if back into a hole in the bubble out, the plunger-and has been wear and tear, can not be used if no hole in the back into the bubble, only in the plunger back into the chute fast-exposed only when the diesel from the back into the hole quickly Jianchu, that can still be used.
B. plunger in the middle or will be the largest supply position, and pushed on to the position, hand-blocked axial piston kit, and then pulled the plunger piston top is not exposed to the plunger into the hole, the feeling if to a vacuum suction, and Songshou, plunger can quickly return to the original position, that still continue to be used.
C. directly in diesel engines make judgments on the basis of tightness
Removed and connected to the high-pressure injection pump tubing, Mentou nut with a high-pressure injection pump tubing joints will be suffocated, and then rotate the flywheel, when the position to supply, if not harder still Pandong, the plunger has been wear and tear, can not be used, if not dynamic pull up or pull very hard on the plunger seal of good dual can continue to use.
1.2 in the locomotive directly identified
In the inspection of the installation of a new fuel pump injector or work normal fuel injector, fuel injection pressure will be raised to 1.96 �� 104kPa (200kg/cm2), the pendulum to the crankshaft to supply fuel pump, fuel pump can be if the normal injector fuel injection, the plunger-and may continue to use, or replaced with new pieces.