User Manual

UT108/109 OPERATING MANUAL
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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 DCV.
(2) 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.