TM-9-2320-272-24-1
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; UNIT, DIRECT SUPPORT, AND GENERAL SUPPORT MAINTENANCE MANUAL; VOLUME 1 OF 4
JUNE 1998
TM-9-2320-272-24-1 - Page 34 of 1015
TM 9-2320-272-24-1
l-16. EQUIPMENT DATA (Contd)
Table 1-3. Vehicle Performance Data (Contd).
Radiator Type .
..........................................
Crossflow
Surge Tank Cap Pressure.
....................................
14 psi
5. ELECTRICAL SYSTEM
Alternator:
Ampere Output (maximum) .
................................ .
60 amp
Model .
.....................................................
Voltage Output.
..........................................
.28 volts
Voltage Regulation .
................................
Mounted internal
Batteries:
Model
......................................................
6TN
Number Required.
...........................................
...4
Plates Per Cell .
.............................................
..2 3
Specific Gravity Full Charge.
.................................
0 70°F
Voltage .
.................................................
12 volts
Protective Control Box.
...............................
WSU-4001-UT
97 kPa
@
21°C
Starter:
Model.
...........................................
MES6401-CUT
Voltage.
...............................................
..24volts
6. TRANSMISSION (MT654CR)
Drive Sequence.
...........................
Reverse, Neutral, 1,2,3,4,5
Drive Range and Shift Control.
................................
Manual
Oil Pressure.
................................................
26psi
Oil Type.
..............................................
OE/HDO-10
Oil Capacity:
Drain and Refill.
.........................................
.4.25 gal.
w/o PTO (dry) .
..........................................
.5.75 gal.
w/PTO(dry).
.............................................
6.25gal.
Oil Temperature:
Maximum .
..............................................
..300°F
Normal Operating Temperature.
............................
120-220°F
Power Takeoff:
Type.
............................................
Converter-driven
Mounting Flange .
...........................
One-opening, SAE, 6-bolt
7. TRANSFER CASE
Model.
...................................................
T-1138
Type .
......................................
Two-speed synchronized
179.3 kPa
16.1 L
21.8 L
23.7 L
149°C
49-104°C
1-17. DESCRIPTION OF DATA PLATES
The location and contents of caution, data, and warning plates are provided in TM 9-2320-272-10, and a
complete list and location of all caution, data, warning, and identification plates is in TM 9-2320-272-24P If
any of these plates are worn, broken, painted over, missing, or unreadable, they must be replaced.
l-24
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