MSG Equipment MS006 Manual De Usuario página 25

WARNING! If the alternator speed is different, it doesn't affect the quality of testing.
4. Press "Test" to start the diagnostic procedure.
WARNING! Previously to entering the diagnostic mode by pressing button "Test", connect the
outputs of the alternator voltage regulator to the corresponding terminals of the Test Bench.
4.1 If the tested alternator is of the COM or I-STARS type, wait for the test bench to identify the
alternator ID and TYPE
4.2. For the lamp alternator types – operation mode of the control lamp should be set at either
50 mA or 500 mA referring to the alternator design.
4.3. For the alternators designed with the voltage regulator terminal A, IG, R, 15, the button K15
should be activated (green light on).
4.4. If the alternator is equipped with the control lamp, the indicator of the control lamp should
light up.
4.5. If the alternator is of type COM, the notification on the mechanical error MEC pops up near
the ERRORS indicator.
5. Turn the "ROTATION SPEED" button to the left or right, depending on the direction of the
alternator rotation to set the rotation speed within 100-150 rpm. Commonly, alternators rotate
clockwise - if you look from pulley side.
WARNING! If the alternator has a freewheel clutch, carefully select the direction of rotation.
5.1. Visually evaluate the rotation: there should be no vibration of the alternator. Testing
procedure must be stopped in case there is a noise, which is a symptom of a mechanical fault.
6. Check what rotation rate the generation starts at as follows:
6.1. Turn the knob ROTATION SPEED to smoothly increase the rotation until the output voltage
gets the rated one. Most fault-free alternators starts generating from 700-850 rpm. Some
alternators of type COM starts generating at more than 1200 rpm. There are the alternators with
LRC (Load Response Control) function and with the delay at the output voltage adjustment.
6.2. For the Lamp alternator types the voltage regulation rate should be set within 14 - 14.8 V for
12V alternators, within 28 - 29.8 V for 24V alternators.
6.3. For the C JAPAN alternator type the voltage regulation rate should be set within 14 - 14.5 V.
6.4. If the alternator equipped with the control lamp indicator, it should go off.
6.5. If the diagnosed alternator is of COM type, the mechanical error should disappear.
7. Check the voltage regulation operation as follows:
7.1. Turn the
2000 rpm.
7.2. For the Lamp alternators that have the pin S (AS, BVS) in the connector, you should check if
the mentioned pin operates well. Connect the pin S with the bench test lead and press 'Test S
pin' - the output voltage should increase. Press 'Test S pin' one more time - the output voltage
should get back to the previous value.
7.3**. Turn the knob REGULATION GC smoothly to change the alternator output voltage within
13 – 15 V. The adjusted voltage (highlighted by green) should change respectively.
knob ROTATION SPEED to set the rotation within
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