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 277 of 1417
G06: GOVERNOR CHECK/POWER TEST - Continued
STEP
CAUTION
Do not perform power test if engine temperature is above normal operating temperature.
However, engine should be at operating temperature before performing power test.
NOTE
The vehicle identification number of G01 must have been entered prior to power test. This
will prevent an error message (E004) and unsuccessful completion of the power test.
2.
Perform power test.
a.
Dial 13 into TEST SELECT and press TEST.
Table
2.
Power Test.
Test No.
Test
13
Power Test (%Power)
P01
22
P02
81
P03
2
b.
Wait for prompting message CIP to appear.
c.
When CIP appears, press down on accelerator and hold it to floor until VTM display is off.
T0009DAA
Figure 1.
CIP Prompting Message.
d.
When OFF appears, release accelerator.
e.
A number representing percent power will appear on VTM.
TM 9-2320-272-23-2
0193
0193-2
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