part names
Part names #2
charging tests
Battery tests
starting and charging maintenance
100
This is the rotating part of an alternator?
What is the rotor
100
This part of the alternator keeps the rectifier cool when the alternator is turning.
What is cooling fan
100
this test is done to measure the voltage the alternator maintains with the engine running at operating temperature.
What is the alternator voltage test
100
This test is done to measure the amount of battery drain when the vehicle is turned off.
What is a battery drain test
100
This should always be checked on the longest span the the belt.
What is the belt tension
200
This is the rotating part of the starter (Hole assembly)
What is the armature
200
This part of the alternator contains the windings and does not turn (Is stationary)
What is the stator
200
This test is done to test the maximum alternator output in amps.
What is a alternator load test
200
This test is done when you measure the voltage of the battery prior to starting the vehicle.
What is the battery voltage test
200
may be added to the battery electrolite if the level in the battery electrolite is low.
What is Distilled water (Contains no ions)
300
The starter armature has this device that the brushes ride against to conduct electricity to the armature windings
What is the comutator
300
This device in the starter keeps the flywheel from overspeeding the armature after the engine starts.
What is the one way clutch or bendix
300
This test is done to check the stator winding and rotor for shorts to ground
What is a continuity test
300
Some batteries contain this device which will be green if the battery contains at least a 65% charge. (A measure of the specific gravity of the battery electrolite)
What is an indicator eye or hydrometer.
300
Used to remove battery acid and corrosion on the battery terminals.
What is backing soda and water
400
The alternator has this device that the brushes ride against to conduct electricity to the field winding in the rotor.
What are slip rings
400
This type of bearing in used in the alternator
What is ball bearing
400
This is where you measure the voltage drop between the alternator positive terminal and the battery positive terminal.
What is voltage drop test across the positive charge cicuit.
400
This test is done by measuring the voltage drop between the positive battery terminal and the solenoid terminal on the starter while cranking over the engine. Is considered acceptable if it does not exceed .5 volts.
What is positive starting circuit resistance (voltage drop) test.
400
Should be replace if you twist it and see cracks in the material or glossy spots that indicate slipping.
What is belt
500
This device in the alternator converts the AC voltage to a pulsed DC voltage
What is the rectifier.
500
This type of bearing is used in the starter
What is a bronze bushing
500
This test is where you measure the voltage drop between the alternator frame and the battery negative terminal. Is considered acceptable if .2 volts or less.
What is the voltage drop test across the alternator ground circuit.
500
This test is done by measuring the battery voltage with a load of 1/2 the CCA rating. Is considered acceptable if the voltage remains at or above 9.6 volts.
What is battery load test
500
Can be used to diagnose charging system faults on vehicles that use the ecm to control the alternator output.
What is a scan tool
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