1998-2003 of release

Repair and car operation

Lexus RX 300
+ Cars Lexus RX-300
+ Controls and operation receptions
+ Options and car routine maintenance
+ The engine
+ Systems of cooling of the engine, heating, ventilation and air conditioning
+ The power supply system and release of the fulfilled gases
- Systems of an electric equipment of the engine
   + Ignition and engine management systems
   + Diagnostics of systems of electronic control and the diagnostic equipment
   - Charge and start systems
      The general information
      The storage battery - the general information, recommendations about service
      Charge system - the general data and security measures
      Check of system of a charge
      Removal and generator installation
      System of start of the engine - the general information
      Removal and starter installation
+ Automatic transmission and interaxal differential
+ Transmissionnaja line
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ Basic schemes of electric connections

System of start of the engine - the general information

The general information

Unique problem of system of start of the engine is maintenance of rotation of the engine with a speed, sufficient for its start.

The start system consists of a starter, the storage battery, the switch of ignition, the traction relay and connecting electroconducting.

The starter represents the electric motor of a direct current with the mixed excitation and the electromagnetic traction relay established outside. The starter consists of the case or статора with windings of excitation, an anchor with обгонной coupling, covers with щёткодержателями and the traction relay.

At starter inclusion through a winding of the traction relay of a starter the current from the storage battery starts to proceed. The relay anchor is involved also contacts become isolated. Simultaneously the relay anchor through driving the lever provides promotion of a gear wheel with обгонной coupling, thus the nave coupling turns on screw шлицах a shaft of an anchor of a starter and turns as well a gear wheel that facilitates input of last in gearing with a gear wreath of a flywheel. Through the closed contacts of the traction relay passes a current feeding windings статора both anchors and a starter anchor starts to rotate together with a nave and обгонной coupling.

After start of the engine frequency of rotation of a gear wheel exceeds frequency of rotation of an anchor of a starter. In this case обгонная муфта it is freely turned, and the twisting moment is not transferred from an engine flywheel to a shaft of an anchor of a starter. After release the ignition key the feed circuit of windings of the traction relay through the ignition switch is disconnected, the anchor of the traction relay is wrung out by a spring in a starting position, relay contacts are disconnected also a drive gear wheel leaves gearing with a gear wreath of a flywheel.

The starter with the involving relay is located to in parallel cranked shaft of the engine and fixed on the power unit.

Starter activation occurs only at translated in position N or Р selector AT lever.

Safety measures

At carrying out of any works with system of start of the engine observe following requirements:

  • In order to avoid an e/motor exit out of operation as a result of an overheat do not include a starter more, than for 15 seconds, - before repeated inclusion wait not less than 1 minute. Long проворачивание not started engine of a starter leads to a congestion of not burnt down fuel in каталитическом the converter that is fraught with an exit of the last out of operation as a result of ignition at start realisation;
  • The starter is connected directly to the storage battery and the negligent reference with it can be at the bottom of ignition as a result of short circuit;
  • Before the beginning of works on starter service always disconnect from the battery a negative wire.