Power Switch Module Test

TM 10-3930-631-34

c. Now touch the second lead of the meter to all

the individual circuits from that point until the ground has

been located. After the ground has been located and

terminals on the contactor panel, instrument panel,

corrected, connect all wires and/or cables securely to

static panel, and control valve pump switches.

the proper terminals. Then check for ground at battery

Resistance readings must be greater than 50,000 ohms.

d. Touch the second lead of the meter to all

receptacle poles to make certain the ground has been

eliminated.

current carrying parts of the contactors, motor terminals,

and static panel. Resistance readings must be greater

9-7. Power Switch Module Test

than 50,000 ohms.

Note

e. If a noticably low resistance reading or zero

To perform the following, refer to figure 9-1,

resistance is obtained at any terminal, remove the wire

wiring diagram for location of terminals.

or cable from that terminal. Check the resistance of

a. Disconnect the main truck harness from static

wires or cables and continue through

panel plug P2, (fig. 9-6).

9-10