Starting/Charging System Testing - UNI-T UT106 Operating Manual

Model UT106: OPERATING MANUAL
D. Starting/Charging System Testing
The on-off package of the engine starting system consists
of a battery, engine starting button, solenoid and relay
starting buttons, lead connections and lines. During the
operation of the engine, the charging system keeps the
battery charged. This system consists of an AC generator,
voltage calibrator, lead connections and circuits. The
multimeter is an effective tool for the checking of these
systems.
1. Load-Free Battery Testing
Before testing the starting/charging system, test the
battery to see if it is fully charged.
(1)
Set the rotary switch to 20 VDC.
(2)
As prompted at the LCD connect terminal, insert the
red test lead into the V terminal and the black one
into the COM terminal.
(3)
Turn off the ignition switch.
(4)
Turn on the driving lights for 10 sec. to release charges
from the battery.
(5)
Connect the black test lead probe to the negative
pole of the battery and the red one to the positive
pole of the battery.
2. The testing results are shown in contrast as follows
and if the battery is less than 100%, please use it
after charging it.
12.60 V
12.45 V
12.30 V
12.15 V
100%
75%
50%
25%
31