Power electrical devices of the car Chevrolet Niva 1

Technical characteristics of the battery
Battery type - 6ST-55A, maintenance-free Rated voltage, V - 12 Rated capacity at 20-hour discharge and electrolyte temperature (27±2) °С at the beginning of...

Bringing a dry-charged battery into working condition
Vehicles leaving the factory are equipped with batteries ready for action, i.e. filled with electrolyte and charged. Batteries without electrolyte in a...

Checking the battery electrolyte level
The electrolyte level in all battery cells must be between the lines marked «MIN» And «MAX», applied to the translucent battery case. Do not operate a battery...

Checking the degree of discharge of the battery
If the battery fails in operation, as well as during its maintenance, it is necessary to check the discharge of the battery with an electrolyte density meter...

Charging the battery
Carefully clean the battery removed from the car, especially its upper part, check the electrolyte level and, if necessary, bring it to normal. The battery is...

Generator Specifications
Maximum recoil current (at 13 V and 6000 min -1 ), A - 80 Limits of regulated voltage, V — 14.75±0.15 Gear ratio engine - generator - 1: 2.4

Features of the generator device
Alternator type 9402.3701-01, three-phase, with built-in rectifier unit and electronic voltage regulator, clockwise rotation (drive side). Pic. 7-4. Generator...

Checking the generator on the stand
Testing on the bench allows you to determine the health of the generator and the compliance of its characteristics with the nominal ones. For the generator...

Checking the generator with an electronic oscilloscope
The oscilloscope allows you to accurately and quickly check the health of the generator and determine the nature of the damage by the shape of the rectified...

Checking the excitation winding of the generator rotor
The excitation winding can be checked without removing the generator from the car, removing only the protective cover and voltage regulator together with the...

Checking the generator stator
The stator is checked separately, after removing the rectifier unit. First of all, check with an ohmmeter or with the help of a test lamp and a battery, if...

Checking the generator rectifier diodes
A good diode only allows current to flow in one direction. Faulty - may either not pass current at all (open circuit), or pass current in both directions...

Checking additional generator diodes
A short circuit of additional diodes can be checked without removing and disassembling the generator according to the circuit shown in fig. 7-10. As well as...

Checking the generator voltage regulator
The operation of the voltage regulator is to continuously and automatically change the generator excitation current in such a way that the generator voltage is...

Checking the generator capacitor
The capacitor is used to protect the electronic equipment of the car and reduce radio interference. Capacitor damaged or loose on alternator (poor ground...

Removal and installation of the generator
Withdrawal Place the car on a lift, turn off the ignition, brake with the parking brake. Raise the hood of the car and remove the wire from the terminal...

Generator disassembly
Remove cover 8 (pic. 7-14), by releasing the latches that connect it to the back cover. Unscrew the screws securing the brush holder 12 to the rear cover...

Replacing the voltage regulator or alternator brushes
The voltage regulator assembly with the brush holder is a non-separable unit. Therefore, if the voltage regulator fails or the brushes are worn out (protrude...

Replacement of generator rotor bearings
The front bearing of the rotor shaft is pressed and rolled into the front cover. Therefore, in the event of its failure, it is necessary to replace the front...

Replacement of additional generator diodes
To replace, unsolder the leads of the damaged diode and carefully remove it from the plastic holder, avoiding sharp blows to the rectifier unit. Then clean the...

Technical characteristics of the starter
Rated power, kW - 1.55 Current consumption at maximum power, no more than, A - 375 Consumed current in the inhibited state, no more than, A - 700 Current...

Features of the starter device
Starter type 5722.3708 (pic. 7-15) it is a DC motor with permanent magnet excitation, with a planetary gear and with an electromagnetic two-winding traction...

Checking the starter on the stand
Health check If there is any doubt about the efficiency of the starter, it is necessary to check it on the stand. The electrical connection diagram for testing...

Removal and installation of a starter
Withdrawal Place the vehicle in the workplace, brake with the parking brake, turn off the ignition and disconnect the terminal "minus" from the battery. Loosen...

Disassembly and assembly of the starter
Starter disassembly is performed in the following order. Unscrew the nut on the lower contact bolt of the traction relay 5 (pic. 7-20) and disconnect the...

Checking the technical condition of starter parts
Anchor. Check with a megger or with a lamp powered by 220 V for a short circuit of the armature winding to ground. Voltage through the lamp is supplied to the...

Spark plug
On cars «Chevrolet Niva» A17DVRM, LRI7YC, LRI5YC type spark plugs are used. Spark plugs with soot or contaminated before testing, clean on a special...