Tool it DBT 400 Manual Del Usuario página 8

Translation of the original instructions
6. Press «ENTER» to return to the home screen. Press «ENTER» again to access the main menu.
TEST OF THE ALTERNATOR CHARGING SYSTEM
1. Press «SYSTEM TEST» the following screen appears :
2. Make sure all vehicle consumers are switched off (lights, air conditioning, radio etc.).
3. Start the engine. One of these three results appears :
Examples
Voltage below 9.6 V
Voltage above 9.6 V
No undulation
1. If the start voltage is normal, press «ENTER» to continue the test.
2. Keep the engine running Check that all the accessories of the vehicle are off then validate.
3. One of the 3 results is displayed :
• Result of the start voltage test
Examples
High starting voltage when the test is
performed with the engine at idle
Normal starting voltage when the test
is performed with the engine at idle
Low starting voltage when the test is
performed with the engine at idle
4. Press «ENTER» to continue charging circuit test with accessories.
5. The tester asks «SWITCH CONSUMERS ON AND PRESS ENTER». Turn on the heater to maximum (heat), high and
rear headlights. Do not switch on cyclic loads such as air conditioning or windshield wipers.
6. Run the engine at 2500 rpm for 15 seconds.
7. Press «ENTER», the ripple intensity of the load cell appears. One of the two results is displayed :
Normal undulation intensity
High undulation intensity
8 8
Screen display
START VOLTS
x.xxx V LOW
START VOLTS
x.xxx V NORMAL
START VOLTS
NO UNDULATION
ALT. VOLTS ADJUST
ALT. VOLTS ADJUST
xx.xx V NORMAL
ALT. VOLTS ADJUST
Results found
DBT 400
CUT CONS.
START ENGINE
The starting voltage is not correct. The battery must
be replaced.
The starting voltage is normal.
The starting voltage is not detected.
Repeat the test.
Results displayed
Check that the connections are good. If every-
xx.xx V UP
thing is properly connected, replace the regulator.
No problem detected. Normal operation of the
alternator.
The alternator does not provide enough power
to the battery. Check the belts, and ensure that
the alternator is running when the engine is
on. If the belts slip or are broken, replace them
and re-test. Check the connection between the
xx.xx V LOW
alternator and the battery. If the connection is
bad, clean or replace the cable and re-test. If
the alternator belts and connection are in good
condition, replace the alternator.
Screen display
VOLTAGE REDR OK
xx.xx V NORMAL
OR
VOLTAGE REDR DEF
TENSION REDR OK
xx.xx V HIGH
Analysis
Analysis
Analysis
The diodes are working in the alterna-
tor/starter
One or more diodes do not
do not work or are damaged. Make
sure that the alternator support is
properly positioned and that the timing
belts are working properly. If so, re-
place the alternator.
EN