Bahco BBT80 Original Instructions Manual page 11

CRANKING VOLTS LOW
The cranking voltage is below normal limits, troubleshoot
the starter with manufacturers recommended procedure.
CRANKING NOLTS NOT DETECTED
The cranking voltage is not detected.
4. Press «ENTER» to begin charging system test.
PRESS ENTER FOR
CHARGING TEST
5. Press the «ENTER» key, one of the three results will be displayed along with the actual
reading measured.
HIGH CHARGING VOLTS WHEN TEST AT IDLE
The voltage output from the alternator to the battery
exceeds the normal limits of a functioning regulator. Check
to ensure there is no loose connection and the ground
connection is normal.
If there is no connection issue, replace the regulator. Since most alternators have the
regulator built-in, this will require you to replace the alternator. The normal high limit of a
typical automotive regulator is 14.7 volts +/- 0.05. Check manufacturer specifications for the
correct limit, as it will vary by vehicle type and manufacturer.
CHARGING SYSTEM NORMAL WHEN TEST AT IDLE
The system is showing normal output from the alternator.
No problem is detected.
LOW CHARGING VOLTS WHEN TEST AT IDLE
The alternator is not providing sufficient current to the
battery. Check the belts to ensure the alternator is
rotating with 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 condition, replace the alternator.
CRANKING VOLTS
xx.xx V LOW
CRANKING VOLTS
NOT DETECTED
MAKE SURE ALL
LOADS ARE OFF
ALT. IDLE VOLTS
xx.xx V HIGH
ALT. IDLE VOLTS
xx.xx V NORMAL
ALT. IDLE VOLTS
xx.xx V LOW
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