MAINTENANCE OF M939 SERIES VEHICLES - OD1661 - LESSON 1/TASK 2
BATTERY CABLE INSTALLATION
What follows is eight test procedures that should
be followed for every battery in the vehicle when
performing this test.
Test each battery of a series pair, then proceed to batteries of the
To find the series pairs of batteries, find pairs in which the
negative terminal of one battery is connected by a cable to the
positive terminal of another battery. This makes the two batteries a
For example, in figure 20, batteries A and B are a
series pair, and batteries C and D are also a series pair.
To test battery A or B, clamp the current probe around the cable connecting
battery A and battery B.
Point the arrow on the current probe in the