Bahco BBT80 Handbuch Seite 10

English
8.
When testing older
diesel engines, the users need
to run up the engine to 2500
rpm for 15 seconds. You will view the screen as follows:
9.
Press «ENTER» to look for the amount of ripple from
the charging system to the battery. One of two testing
results will be displayed along with the actual testing
measured.
RIPPLE DETECTED
NORMAL
Diodes function well in the
alternator / stator.
EXCESS RIPPLE DETECTED
One or more diodes in the
alternator are not functioning
or there is stator damage.
Check to ensure the alternator mounting is sturdy and
that the belts are in good shape and functioning properly.
If the mounting and belts are good, replace the
alternator.
10. Press the «ENTER» key to continue the charging
system with accessory loads. One of the three results
will be displayed along with the actual testing measured.
CHARGING SYSTEM HIGH WHEN TEST WITH
ACCESSORY LOADS
The voltage output from the
alternator to the battery
exceeds the normal limits of a functioning regulator.
Check to ensure there are no loose connections and
that the ground connection is normal. If there are no
connection issues, replace the regulator. Since most
- GB.17-V1 -
model
RUN ENGINE UP TO
2500 RPM 15 SEC.
RIPPLE DETECTED
××.××V NORMAL
Or
NO RIPPLE DETECT
RIPPLE DETECTED
××.××V HIGH
ALT. LOAD VOLTS
××.××V HIGH
18
alternators have the regulator built-in, this will require
you to replace the alternator.
CHARGING SYSTEM LOW WHEN TEST WITH
ACCESSORY LOADS
The alternator is not providing
sufficient current for the
system's electrical loads and the charging current for
the battery. Check the belts to ensure the alternator is
rotating with the engine running. If the belts are slipping
or broken, replace the belts and retest. Check the
connections from the alternator to the battery. If the
connection is loose or heavily corroded, clean or
replace the cable and retest. If the belts and
connections are in good working condition, replace the
alternator.
CHARGING SYSTEM NORMAL WHEN TEST WITH
ACCESSORY LOADS
The system is showing normal
output from the alternator. No
problem detected.
11. Press
«ENTER» when
charging system test is
completed finish. Turn all
accessory loads and engine off. Press «ENTER» to
return to step 1 or remove the test clamps from the
battery posts after completion of testing to end test.
19
- GB.18-V1 -
English
ALT. LOAD VOLTS
××.××V LOW
ALT. LOAD VOLTS
××.××V NORMAL
TEST OVER. TURN
OFF LOADS & ENGINE