Installation of a KamAZ A41 starter: do-it-yourself repair, how much it costs, where the relay is located, wiring diagram, device, does not work, malfunctions

Connecting the KAMAZ starter blocking relay

Repair of Kamaz

How to connect a 4-pin, 5-pin relay. Why

Repair Kamaz 2

Starter Interlock Relay

Installing an additional starter relay on the VAZ 2112

Installation of the Pantera CL 500 alarm on the VAZ 2104, 2105, 2107 (part 3)

VEHICLE ELECTRICAL EQUIPMENT.

emergency starter. on DAF 105

Starter relay

We connect the wires to the ignition lock VAZ "classic" 01 - 07.

Starter blocking relay for KAMAZ

Repair of Kamaz

How to connect a 4-pin, 5-pin relay. Why

Starter Interlock Relay

Repair Kamaz 2

Installing an additional starter relay on the VAZ 2112

VEHICLE ELECTRICAL EQUIPMENT.

Starting modified engine PDM for T 150, DT 75 with a starter from KAMAZ

Starter relay

Installation of the Pantera CL 500 alarm on the VAZ 2104, 2105, 2107 (part 3)

starter causes malfunction part 1

Starter blocking relay for KAMAZ

Repair Kamaz 2

How to check, connect the signal relay, ignition, starter ......

Starter Interlock Relay

ANSWER. Scheme of an additional starter relay.

KAMAZ 65115

How to connect a 4-pin, 5-pin relay. Why

The starter is not working. What is the reason?

There is a starter relay, but the starter still does not turn on with the ignition switch.

Starter switching circuit

VEHICLE ELECTRICAL EQUIPMENT.

Device and how it works

The starter device includes the following mechanisms:

Cap, which is located on the drive side. It is equipped with an intermediate type ring.
Rubber plug.
Drive handle.
Starter relay - located in the block of the mechanism itself.
Collector cover.
Brush.
Spring mechanism.
Protective cover.
Retaining ring.
Adjusting washer.
Coupling bolt and anchor.
Tube for insulation.
Overrunning clutch with drive gear.
restrictive system.

The starter activation scheme is presented in the KamAZ user manual.

When the ignition switch is turned on, the automatic device supplies a control voltage flow to the retractor, which engages the bendix gear in engagement with the flywheel.

At this time, the rotation of the starter begins. When the ignition key is turned to any other position, the solenoid relay is de-energized. A return spring relieves tension from the coil housing. The relay disengages the bendix from the flywheel housing and turns off the power.

KAMAZ ELECTRICAL SCHEMES | AUTOMOBILE WIRING

Continuation. See the beginning here.

How to save circuit diagrams on your computer, see here.

Fig.1. Electrical circuit diagram of systems that provide engine start: 1 - heater relay; 2 - switch of operating modes of the liquid engine heater; 3 - button for turning on candles; 4 - torch candles; 5. 29 - electromagnetic valves; 6 - EFU relay; 7 - EFU thermal relay; 8 - electric torch device; 9 - ammeter; 10 - starter relay; 11 - generator; 12 - relay for turning off the excitation winding of the generator; 13 - starter blocking relay; 14 - tachometer; 15 - voltage regulator; 16 - starter; 17, 20. 32 - fuses; 18 - electric start system; 19 - battery switch; 21 - instrument and starter switch; 22 - rechargeable batteries; 23 - external start socket; 24 - remote control button for turning off the batteries; 25 - ignition coil PZhD with a switch; 26 - spark plug; 27— preheater; 28 - fuel heater; 30 - electric motor; 31 - contactor; 33 - duplicate starter switch

Fig.1. Electrical schematic diagram of systems providing start-up of the KAMAZ engine

Fig.2. ST142B starter: 1 - sealing rings; 2 - intermediate bearing holder; 3 - bandage; 4 - anchor; 5 - body; 6, 27 - covers; 7 - collector; 8 — a bolt of fastening of a traverse of brush holders; 9, 28 - bearing; 10 - felt; 11 - traverse brush holders; 12 - brushes; 13 - excitation winding; 14 - connecting bus; 15 - main clamp; 16 - clamp of the relay windings; 17 - contact disk; 18, 19 - pulling and holding windings; 20 - return spring; 21 - anchor; 22 - rubber casing; 23 - drive lever; 24 - eccentric axis; 25 - drive; 26 - gear; 29 - thrust washer.

Starter KAMAZ ST142B

Fig.3,4,5. Download the electrical (a) and wiring (b) diagrams of the starter blocking relay with a description.
Rice. Fig. 6. Electrical circuit diagram of preheater PZhD30: GBl, GB2 - storage batteries; S1 - battery switch; S2 - heater operation mode switch; K1 - contactor for switching on the electric motor; K2 - relay for turning off the electric fuel heater; R.nagr. - fuel electric heater; Y1, Y2 - electromagnets; F spark plug; T1 - ignition coil; M - electric motor; V1 - V3 - diodes.

Fig.6. Electrical circuit diagram of the PZhD30 preheater on Kamaz

Troubleshooting in the KAMAZ electric start system

The engine start system of a KamAZ vehicle can be in three alternative states: serviceable, serviceable and faulty (failure).

In good condition, the starting system ensures the engine start, and the condition of all devices meets the requirements of the technical specifications.

When in working condition, the system provides a confident start of the engine, but the technical condition of some devices does not meet the specifications.

In the event of a malfunction (failure), the engine cannot be started due to a malfunction of one or more system devices.

We will not consider the correct state of the system, since we are not faced with the task of determining the period of failure-free operation of the system by the number of starts or by the mileage of the car. To perform most tasks, it is enough to have the system in working condition, when the system provides a confident start of the engine. Therefore, first of all, we will consider the failure of the system and possible malfunctions, we will indicate ways to quickly identify and eliminate them.

The system consists of seven devices, each of which affects the operation of the entire system. Therefore, in order to optimize the troubleshooting process, it is necessary to time each test and evaluate its impact on the performance of the starting system:

Battery test

Remove the cover from the battery compartment. By external inspection, check the condition of the terminals of the tips and the tightness of their fastening on the pole terminals (Fig. 1). The density of the electrolyte should determine the degree of discharge of the battery. Check time - about 5 minutes;

Checking for voltage on the ammeter

Unscrew the bolts securing the priors shield and tilt the shield towards you or put it on the steering column. In this case, free access to the terminals of the ammeter opens. Connect a test light in series to the input and output of the ammeter. If the light on the “+” of the ammeter is on, then the circuit to the ammeter is working, and vice versa. Then check the "-" ammeter. If the control lamp is on, then current passes through the ammeter, and faults should be sought further down the circuit. If the light does not light up, then there is a malfunction in the ammeter. This check without replacing the ammeter takes up to 2 minutes;

Checking the instrument switch and starter

Before checking this device, it is necessary to carry out preparatory work that provides access to the conclusions. To do this, remove the shield for the electric motors of the cabin heating system, unscrew the nut that secures the instrument and starter switch and remove the device from the panel, leaving it on the wires (Fig. 2). Remove the red wire from the “AM” terminal and check the presence of voltage with a test lamp. If the lamp is on, then the circuit to the instrument switch and starter is working. Then you need to connect the red wire to the “AM” terminal, turn the key in the instrument and starter switch to the second position and check the “ST” terminal (green wire) with a light bulb. If the lamp is on, then the instrument and starter switch is working.

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Starter Interlock Relay

This relay is located under the fuse panel. The relay is assembled on semiconductor devices and it is impossible to check it with a test lamp. For verification, a special device is used. A malfunction of the starter inhibit relay does not necessarily lead to a loss of starting system performance, so this test should not always be carried out when troubleshooting;

Checking the starter enable relay

This relay is located under the fuse panel. Wire “+” from the ammeter to the output “K” of the relay. In this case, a click of switching on the contacts should be heard. In order to make sure that the contacts and the relay are closed, it is necessary to connect a test lamp to the output “C” of the starter enable relay (black wire). If the lamp is on, then the relay contacts are closed.

Check of the traction relay of a starter

Wire the “+” from the batteries to the terminal that retracts the starter relay windings. If a click is heard, the relay is energized. The motor must then rotate. If the starter motor does not rotate, then a test lamp checks for voltage on the contact bolt associated with the motor. If the lamp is on, then the starter traction relay is working properly.

Checking the starter motor

This check is the most time-consuming, as it is carried out (as a rule) with the starter removed. It takes 30 minutes to remove the starter and 25 minutes to diagnose.

Since the electric start system has a small number of elements (seven in total), the element-by-element verification method is used, or the sequential division of the system into two subsystems.