TM 9-2320-272-24-1
Table 3-1. Guide for Preparation of Antifreeze Solutions.
ETHYLENE-GLYCOL -60F (-51 C) INHIBITED ML-A-46153
LOWEST EXPECTED
QUARTS OF
ARCTIC GRADE ANTIFREEZE
AMBIENT
ANTIFREEZE
-90F (-68C)
TEMPERATURE
REQUIRED
ML-A-11755
F
C
Freezing point of -90F
(-68C). Issued ready for
-7
9
+20
use and must not be mixed
+10
-12
11-3/4
with any other liquid.
16
-18
0
19
-23
-10
20-1/2
-29
-20
23-1/2
-34
-30
25
-40
-40
22-6-1/2
-46
-50
28
-48
-55
Below -60
Below -51
Use arctic grade antifreeze
(-90F)(-68C)
CAUTION
When filling cooling system on M939A2 series vehicles, ensure
drainvalve on aftercooler is open. Failure to do so may result in
damage to equipment.
NOTE
The cooling system for the vehicles covered in this manual has a
47 qt (44.51) capacity.
Fill cooling system with required amount of antifreeze and add water to full mark. Close
1.
aftercooler (6) drainvalve (5) when coolant starts running out of drainvalve (5) for on M939A2 series
vehicles.
Install filler cap (1) on surge tank (2).
2.
Start engine (TM 9-2320-272-10) and run at fast idle (800-1,000 rpm) until engine temperature
3.
reaches 185F (85C). At this temperature, thermostats should fully open.
Check antifreeze protection level using antifreeze tester. Follow surge tank filler cap (1) removal
4.
procedure of task a.
3-152
