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Electrical Parts
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Vendor: Bobcat
P2020-5003 L1611 PRESSURE SENSOR P20205003 Fits For BOBCAT S185 NEW
Regular price $ 45 -
Vendor: Bobcat
7288690 7179837 Fuel Sending Unit Sensor Fits Bobcat 773 S160 S175 S185 T190
Regular price $ 55 -
Vendor: Bobcat
7286464 Fuel Sending Unit Sensor Fits Bobcat 753 773 863 873 S100 S250 S300 T250
Regular price $ 55 -
Vendor: Volvo
VOE20482772 SPEED SENSOR 0192115027 FITS VOLVO EC240BLC EC290BLC EC210B
Regular price $ 49 -
Vendor: Bobcat
Temperature Sensor 6718414 for Bobcat Loaders and Excavator E50 E55 T2250 V417 5600 5610 A300 A770 S100
Regular price $ 35 -
Vendor: Bobcat
2pcs Fuel Sending Unit Sensor 7179839 For Bobcat 751 763 773 863 873 883 A220 A300
Regular price $ 78 -
Vendor: Bobcat
2PCS Oil Pressure Sensor Switch 7321588 For Bobcat A300 A770 S130 S150 S160 S175 S185
Regular price $ 98 -
Vendor: Caterpillar
189-5746 1895746 318-1181 3181181 6V2455 6V-2455 Speed Sensor Fits Caterpilar CAT E330B E330C E330D
Regular price $ 32 -
Vendor: Kubota
1PCS 5H911-42622 NEW FOR Kubota 988 Harvester Speed Sensor
Regular price $ 49 -
Vendor: Kubota
1PCS T1060-32270 NEW FOR Kubota 988 Harvester Speed Sensor
Regular price $ 36 -
Vendor: Bobcat
Seat Bar Sensor 7105252 for Bobcat Skid Steer 751 753 763 773 853 863 864 873 953 963 S70 450 453 463 553 653
Regular price $ 45 -
Vendor: Volvo
Pressure Sensor 17215536 VOE17215536 for Volvo L60F L70F L90F L110F L120F L350F G900C
Regular price $ 69
What are the electrical parts?
The electrical system has three main functions. One is to power the starter motor through the battery, causing the starter motor to run and complete the initial stage of the stroke work through the crankshaft connecting rod structure, and exit the next working system after the engine is started, so this part is sometimes called the engine's The main component of the starting system is the starter motor; the second is to ensure the normal operation of the engine during work, ensuring normal oil supply, normal air intake, and starting protection devices when encountering high temperatures and high pressures. The main components include various sensors and switches. Third, during operation, the charger is driven by the engine to charge the battery and ensure that the battery is fully charged. The main component is the charger.
The electrical system can be classified according to the speed control system of the engine. The electrical system of the machine control is relatively simple, including only the starter, charger, and switch with sensor function. Of course, some assembly plants may have additional wiring in the control box of the unit. , a sensor is installed in the engine for control; in addition to the mechanical starter and charger, the ESC also has an electronic speed regulator and actuator; while the EFI/electronic control is more complex, and its main features are various There are many sensors and they are controlled by a computer board.
1. Battery
The battery is generally not a product that comes with the engine, but is selected, tested and matched by the assembler. The usual voltage is 12V or 24V, and its main function is to power the starter motor, ECM and other electrical equipment. Under normal circumstances, when the engine is running once, the battery is fully charged, because although the battery is discharged in the early stage, it will be fully charged again during the engine running process.
2. Starting motor
The essence of a starter motor is an electric motor. The principle is the magnetic effect of current, which generates a magnetic field through energization and promotes the rotation of the starter. The starter is installed on the side of the timing gear. When starting, the probe of the starter stretches out, contacts the timing gear box gear, and pushes the gear to rotate. After reaching a certain speed, usually 250-300 rpm, the probe It will retract. At this time, the engine can run normally and the work of the starter motor is completed.
An introduction to the main systems of the engine - Youjia
3. Charger
It is also called an alternator, so it is essentially a small generator based on the principle of electromagnetic induction. Driven by the engine, the coil cuts the magnetic induction lines to generate current and supplies it to the battery. The gear of the charger is connected to the crankshaft gear through a belt, and its power is also provided through the crankshaft. The charger is equivalent to a microcosm of a diesel generator set and usually includes excitation windings, etc. We will discuss this later when we introduce the electric ball.
An introduction to the main systems of the engine - Youjia
4. Sensors and switches
Sensors and switches are electrical devices and serve a similar purpose. Sensors and switches feedback information to the computer board or controller through signals, so that the computer board or controller can perform corresponding actions according to the corresponding program. The difference is that the sensor generates pulse signals and transmits information to the control center continuously, while the switch has a threshold, and it is energized only when it exceeds or falls below the threshold and feeds back to the control center. Sensors usually include temperature sensors, pressure sensors, rotational speed sensors, etc., and switches are mainly temperature switches and pressure switches.