TM-9-2320-283-20-1

TRUCK TRACTOR, LINE HAUL, 50,000 GVWR, 6X4, M915A1

TECHNICAL MANUAL; ORGANIZATIONAL MAINTENANCE PART 1 OF 3

DECEMBER 1983

TM-9-2320-283-20-1 - Page 509 of 926

TM 9-2320-283-20-1

STE/ICE TROUBLESHOOTING.

2-21.

STE/ICE GO CHAIN TESTS (Continued).

Table 2-10.

STE/ICE NO-GO-Chain Test (Cont’d)

NOTE

TEST PROCEDURE FOR COMMERCIAL MAINTENANCE-FREE BATTERIES

1. Test each battery of a series pair, then proceed to batteries of next series pair.

2. To find the series pairs of batteries, find pairs for 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 series pair.

For example in the

figure below, batteries A and B are a series pair, and batteries C and D are also a series pair.

3. To test battery C or D.

clamp current probe around cable connecting battery C and battery D.

Point arrow on

current probe in the direction of the negative post connected to the cable.

4. The test probe cable W2 is first connected to battery C for testing battery C.

5. The test probe cable W2 is then connected to battery D for testing battery D.

(Current probe in same place as for

testing battery C.)

6. To test battery A or B, clamp current probe around cable connecting battery A and battery B.

Point arrow on

current probe in the direction of the negative post connected to the cable.

7. The test probe cable W2 is then connected to battery B for testing battery B.

2-384