Parameter - Parameter Pengecekan Alternator

1. Check mounting bolts
· Check the charge rate at the vehicle battery. periksa charge rate pada baterai kendaraan Using the correct size spanner check all of the mounting bolts of the alternator.

2. Check fan belt
· Check the alternator drive belt for tension and condition.If not in good condition it should be replaced.

3. Check drive pulley
· Check the alternator drive pulley for signs of wear. A worn pulley can give the same effect as a loose fan belt. On machines where the alternator is used to drive the tachometer a worn pulley can lead to a wrong engine RPM reading.

4. Check the main shaft
· Check the main alternator shaft for exessive play. Excessive play is a sign that the bearings or the bearing housing is worn. This is done by firmly gripping the alternator pulley and moving it from
side to side.

5. Check the terminals
· Check all the alternator terminals are tight. You can do this by attempting to move them with your hand. If they are loose you must tighten them. Loose terminals lead to burning of the terminals and the lugs.Inspect them to make sure the connection is clean and the wire is not broken or frayed.

6. Apply korode kure
· Apply korode kure to any exposed terminals. This will prevent corrossion. The Korode kure should also be applied to any ground lugs.

7. Check charge rate
· Check the charge rate at the battery to ensure it is correct.

8. Check charging rate
· Take your multi meter and set it up for test voltage. Go to the machine batteries and put the red probe to positive and the black probe to negative. Read the display this is the charging voltage of the machine.

9. Check state of charge of batteries.
· With the machine not running remove all of the caps of the batteries. One by one use the rubber bulb to draw acid into the glass tube. Read the number on the glass float. This is the specific gravity of the cell being tested.

10. Check R terminal
· Take your multimeter and set it up as Check voltage. Check the voltage between the alternatior terminal R and ground. Red lead of multi meter goes to the R terminal and the black lead of multi meter goes to ground. Read the display this is the R terminal voltage.

11. Test the B+ for voltage drop.
· Set your multi meter for check voltage. Take the red lead of your multi meter to B+ on the alternator. Take the black lead of your multi meter and put it to main + terminal of the battery ( you may to use a jumper wire to assist if the multi meter leads are too short). If the reading is greater than 1 volt this a problem either in a connection or the cable used is too small. Rectify the problem.

12. Check resistance of ground circuit
· Set your multimeter as for check resistance. Check the resistance between the alternator case and battery ( you may need a jumper wire to assist if the multi meter leads are too short). If the reading is any more than 2 ohm this indicates a problem either in a connection or the cable used is too small Rectify the problem.

Posted in: electric,troubleshooting