Serviceability of the regulator is determined on the working engine by fuel pressure in a stage of nozzles (see. "Check of pressure in a power supply system"). If pressure is lower than norm, and other elements of system are serviceable, the regulator is faulty. It needs to be replaced as it is not maintainable.

1. Reduce pressure in a power supply system (see. "Pressure decrease in a power supply system").

2. Disconnect a wire from the minus plug of the rechargeable battery.

3. Remove a fuel stage (see. "Removal and installation of a fuel stage").

4. Hook the screw-driver …	5. … take out a clamp …

6. … also take pressure regulator.	7. Remove a sealing ring from the regulator case.

Prevention Replace a sealing ring at each removal of the regulator new.

8. Install the regulator as it should be, the return to removal, having oiled its sealing ring engine.