Warning! Remember that gasoline is a highly flammable liquid! Observe all applicable fire safety precautions when working on power system components. Do not smoke! Do not approach the place of work with an open flame or carrying an unprotected lampshade! Do not service the system in rooms equipped with natural gas-fired heaters equipped with a pilot flame (such as water heaters and clothes dryers). Do not forget that gasoline is classified as a carcinogen, i.e., substances that contribute to the development of cancer! Try to avoid getting fuel on open areas of the body, use rubber protective gloves, in case of accidental unexpected contact with fuel, thoroughly wash your hands with warm water and soap. Clean up spilled fuel immediately and do not store fuel-soaked rags near open flames. Remember that the fuel injection system of models equipped with fuel injection is constantly under pressure. Relieve any residual pressure in the system before attempting to disconnect fuel lines. Wear safety goggles when servicing power system components. Keep a class B fire extinguisher handy at all times!
Removing
1. Relieve the pressure in the supply system (see Section Depressurizing the supply system).
2. Disconnect the vacuum hose and fuel return line from the pressure regulator.
3. Turn out fixing bolts / release a lock ring and remove assembly of a regulator from a fuel highway.
Installation
1. Replace pressure regulator o-ring (before installing a new ring, lightly lubricate it with liquid machine oil).
2. Place the pressure regulator on the fuel line assembly and check for freedom of rotation. If there are signs of jamming, remove the regulator and check if the o-ring is twisted.
3. Having installed the regulator properly, match the bolt holes, screw in the mounting bolts and tighten them to the required torque (11 Nm). If equipped, secure the regulator with a locking ring.
4. Connect the return line and vacuum hose to the regulator.
5. Connect the negative cable to the battery. Pressurize the system and check the tract for signs of leak development.