1. Hand oil pump: used for manual operation, providing initial pressure.
2. Piston components: including piston, piston spring, push rod, push rod spring, and roller tappet, working together to ensure smooth delivery of diesel.
3. Pump body: accommodates other components and provides stable structural support.
4. Inlet and outlet holes: used for the inlet and outlet of diesel, respectively.
5. Inlet and outlet valves: Control the inflow and outflow of diesel to ensure stable pressure.
6. Camshaft: drives the plunger movement to complete the oil suction and pressure processes.
7. Roller: Installed on the camshaft, it rolls with the rotation of the camshaft, pushing the plunger up and down.
8. Plunger: located in the plunger hole of the pump housing, it moves up and down with the rolling of the roller.
9. Oil outlet valve: located at the top of the plunger, controls the output pressure of diesel.
10. Spring: Installed on the plunger and oil outlet valve to balance pressure fluctuations inside the pump.
11. Fuel quantity adjustment screw: used to adjust the fuel supply of the diesel pump to meet different working conditions.
12. Fuel level indicator: displays whether the fuel supply of the diesel pump is normal.
