Fans обдува the basic heater of a body are resulted in rotation by the bipolar electric motor — with excitation from constant magnets. Inclusion of the electric motor of the basic heater is carried out by means of the switch having four positions:

- It is switched off;

- Small turns;

- Average turns;

- The big turns.

At small and average turns the electric motor chain joins the resistor.

Technical characteristics of the electric motor of the basic heater

Type..... 511.3730

Capacity, Vt..... 90

Consumed current at loading fans, And, no more..... 15

Frequency of rotation of an anchor at loading fans, rpm..... 3000±300

The electric motor дополнительного* a heater

The fan обдyвa and heating of salon of the car is resulted in rotation by the bipolar electric motor of a heater with excitation from constant magnets.

Electric motor inclusion is carried out by means of the switch having three positions:

- It is switched off;

- Small turns;

- The big turns.

At small turns the electric motor chain joins the resistor.

Technical characteristics of the electric motor of an additional heater

Type..... 197.3730

Capacity, Vt..... 60

Consumed current at great speed, And, no more..... 6,5

Frequency of rotation of an anchor at loading the fan, rpm..... 3800

Электронасос* Heating systems

The electropump of system of heating is resulted in rotation by the bipolar electric motor with excitation from constant magnets.

Electric motor inclusion is carried out by means of the switch of an additional heater.

* For motor vans with two rows of seats and buses.

Electropump technical characteristics

Type..... 352.3730 or 32.3780

Capacity, Vt..... 25

Consumed current at great speed, And, no more..... 5

Productivity, л/ч, not less..... 1400±200

Electroconducting

On the car the single-wire system of inclusion of devices of the electric equipment is applied, three of which as the second wire ("weight") the car case serves. At damage of isolation of a wire car cases can directly concern, causing the short circuits leading перегоранию of safety locks, to обгоранию isolation and even to a fire.

For convenience of installation and protection against mechanical damages of a wire are braided with a fastening braid in plaits.

Maintenance service

At car surveys it is necessary to check up carefully a condition of isolation of wires, warning their damages (перетирание about sharp edges, excessive sagging, etc.). The special attention should be given to cleanliness and reliability of joining of wires to conclusions of devices of an electric equipment. Even with insignificant damage of isolation it is necessary to wind wires изоляционной with a tape. Poorly tightened or polluted and oxidised conclusions to smooth out and tighten. It is necessary to watch carefully that on a surface of wires oil and gasoline as they destroy isolation have not got and reduce service life of wires.

At electroconducting repair it is necessary to use the basic scheme of wires on which colouring and sections of wires are given.

Safety locks

Under a cowl on the right there is a block of safety locks БПР-2М5 where the fusible insert on 90 And protects a generator chain, a light chain of the car, and the fusible insert on 60 And protects the general плюсовую a car chain, except light, and starter and generator chains.

At the left under the panel of devices on an arm two blocks of fuses BPR-13 are established. Sizes of a limiting current strength in amperes for each safety lock and chains protected by them are resulted in tab. 9.7.

Table 9.7. The chains protected by fuses

The chains protected by fuses
Safety lock number	Current strength, And	The chains protected by fuses
Safety locks of the top block protect chains:
1	25	The reserve
2	15	The alarm system
3	15	The switch of the storage battery of a radio tape recorder
4	10	Screen wiper, стеклоомывателя, the right number of plafonds of salon
5	10	The relay of headlights
6	10	Braking signals
7	20	Sound signal, прикуривателя
8	20	The electric motor of a heater, the electropump of system of heating (buses and cars with two rows of seats)
9	15	The electric motor of an additional heater (buses and motor vans with two rows of seats)
10	10	Combinations of devices, light of a backing, the gauge of speed, the breaker of a signalling device of a lay brake, the screen wiper relay
11	5	The reserve
12	15	Microprocessor system of ignition (ЗМЗ-4061,-4063)
13	10	Turn indexes
Safety locks of the bottom block protect chains:
1	25	The reserve
2	15	Headlight of the right headlight, headlight signalling device
3	15	Headlight of the left headlight
4	10	Passing light of the right headlight
5	10	Passing light of the left headlight
6	10	Antifog lanterns, signalling device of antifog lanterns
7	20	The reserve
8	20	The reserve
9	15	Plafond of a cabin, plafond (plafonds - ГАЗ-2705 with one row of seats) cargo salon, a plafond of illumination of a footboard of buses, подкапотного a lantern, the left number of plafonds of illumination of passenger salon of buses
10	10	Illuminations of devices, switches, приукуривателя
11	5	The reserve
12	15	Dimensional light of the right board, the proof-reader of headlights, plafond of a ware box
13	10	Dimensional light of the left board, signalling device of dimensional light, licence plate illumination

The note The complete set of spare safety locks is put to the car. For extraction of a faulty safety lock use tweezers in the complete set of spare safety locks.

The switch of the storage battery (it is established by buses)

The switch of the storage battery with remote control is intended for switching-off of the battery from an onboard network of the car (at long parking, electric equipment repair, and also at occurrence of fire danger).

The prevention To disconnect the storage battery it is necessary only after an engine stop. To disconnect the battery at the working engine categorically it is forbidden; knots and the devices incorporating electronic schemes otherwise can fail.

The switch of the storage battery is established under the pallet on which the battery is established.

Fig. 3.1. Controls

Management of the battery switch is carried out by the push-button switch 28 (fig. 3.1 see), located under the panel of devices.