E39 series BMW 5

since 1996-2001 of release

Repair and car operation



E39 BMW
+ Introduction
+ Maintenance instruction
+ Current leaving and service
+ Engine
+ Systems of cooling, heating
+ Power supply system and release
- Engine electric equipment
   + ignition System
   + System of preheat of the diesel engine
   - Charge and start systems
      Removal and installation of the storage battery
      The low-served storage battery
      Check of the storage battery
      Self-category of the storage battery
      Charging of the storage battery
      The generator - general information
      Security measures at work with the generator
      Check of tension of a charging of the generator
      Removal and generator installation
      Check and replacement of brushes of the generator and tension regulator
      Starter
      Removal and starter installation
      Removal, check and installation of the electromagnetic traction relay
+ Manual transmission
+ Automatic transmission
+ Coupling and power shafts
+ Brake system
+ Suspension bracket and steering
+ Body
+ Onboard electric equipment
+ electric equipment Schemes
+ System of onboard diagnostics





Starter

General information

The small electric motor is necessary for start of an internal combustion engine - a starter. That the engine was started, it is necessary for untwisting a starter to 300 rpm. It is possible only at reliable work of a starter and sufficient degree of a charge of the storage battery.

The starter consists of a driving part, polar and collector. In a polar and collector part there is an anchor and a collector, and also a shchetkoderzhatel. In a shchetkoderzhatel there are brushes which with confluence of time wear out. At big wear of brushes reliability of work of a starter decreases.

In a forward part of the case of a starter the drive gear wheel is placed. If via the ignition switch on a starter tension, the electromagnetic relay located on the case of a starter moves, enters into gearing with a gear wreath of a flywheel of the engine a gear wheel sitting on a shaft of a starter. After that the starter can untwist the engine on necessary number of turns. After engine start the number of its turns exceeds number of turns of a starter. The starter leaves gearing with the engine.

For start of the engine the big current is required. Therefore at carrying out maintenance it is necessary to pay attention to reliable connection of cables. Available corrosion is necessary for smoothing out, and it is necessary to grease contacts with protective greasing.

The starter can be on sale as a replaceable part. It means that at acquisition of a new starter can be зачтена cost old.


1 — a casing
2 — a shchetkoderzhatel
3 — a set of brushes
4 — the plug
5 — a casing

6 — an excitement winding
7 — the electromagnetic relay
8 — the plug
9 — a forward cover
10 — a restrictive ring

11 — the plug
12 — the lever
13 — a gear wheel
14 — an anchor
15 — a casing