6D125 Second Hand Alternator PC400 - 5 D6 - 11 / 600 - 821 - 3560
Specification
| Test: Normal | Voltage: 24V |
| Alternator: 24V 13A | Application: Construction Machinery |
| Engine number: 6D125 | Type: Direct Injection |
| Type: Alternator Assembly | Engine type: Diesel |
Description
How to make your alternator last longer
Often an alternator fails prematurely when a protective engine
undercover or shield is damaged or missing. This happens because
water splashing from the road gets inside the alternator and causes
it to wear faster.
If your engine undershield is damaged, have it replaced to keep the
engine compartment clean and dry. A coolant or oil leak can also
damage the alternator. Similarly, if you have to shampoo the engine
compartment, the alternator must be protected from water and
detergent.
How an alternator works, common problems
Alternator cutawayAlternator cutaway. Image courtesy of Robert
Bosch GmbHA typical AC car alternator has two windings: a stator
(stationary outside winding) and a rotor (rotating inner winding).
A voltage supplied through the voltage regulator to the rotor
winding energizes the rotor and turns it into a magnet. The rotor
is rotated by the engine via a drive belt.
The magnetic field produced by the rotating rotor induces AC
electric current in the stationary stator winding. Diodes are used
to convert AC current into DC current used in the vehicle's
electric system. The output voltage is controlled by the voltage
regulator (photo below). Typically, a voltage regulator is built-in
into the alternator.
However, the current generated is AC has to be converted to DC
before use; therefore, it is channeled to the alternator’s diode
rectifier. The rectifier changes the two-way current into a one-way
flow-direct current. The voltage then passes on to the voltage
regulator that steps up or steps down the voltage to match the
needs of different units of the car.
Wiring Connections
Since an alternator is connected to so many components, it exhibits
a complex wiring system. The main wirings include the exciter wire,
positive and negative cables. Exciter wire is connected to the L
terminal of an alternator and is used to turn on the voltage
regulator. Excitor wire is needed to generate the voltage required
for the alternator to start running.
