TM-9-2320-272-23-2
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 2 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-2 - Page 309 of 1417
NG80: STARTER CIRCUIT TESTS - Continued
STEP
5.
Compare test results.
Compare number to test limits in table below.
Table
2.
Starter Circuit Resistance.
Vehicle
Starter Circuit Resistance (Milliohms)
M939/A1
30
M939A2
10.4 to 12.8
CONDITION/INDICATION
Is starter circuit resistance within limits specified in table?
DECISION
YES - Go to NG81: Battery Tests (WP
0203).
NO - Go to Step (6).
STEP
6.
Resistance reading.
Check if resistance is higher or lower than test limits.
CONDITION/INDICATION
Is resistance high?
DECISION
YES - Go to Step (9).
NO - No resistance, look for short in starter circuit. If none found, replace starter (WP
0303). After completing
repair, rerun GO-Chain tests to verify problem is solved and no other problem exists.
TM 9-2320-272-23-2
0202
0202-4
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