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 769 of 926
TM 9-2320-283-20-1
COOLING SYSTEM.
3-52.
COOLING SYSTEM SERVICE (Continued).
LOCATION/ITEM
ACTION
REMARKS
A.
DRAINING.
WARNING
Let radiator cool before removing cap. Be sure to follow
step 1 when removing cap.
Failure to do so could result in
serious burns and other injury to personnel.
1.
Cap (2).
a. .Cover with a thick cloth
and turn counterclockwise
to first stop.
b. Allow pressure to escape
from cooling system.
c. When all pressure has
escaped, remove from item
(3).
2.
Valve (4).
Open by turning counterclock-
wise as far as possible.
3.
Draincock (7).
a. Place a suitable container
underneath.
b. Open and let coolant drain
out.
4.
Draincock (5).
Open when level of coolant
Level of coolant is
goes below item (6).
below level of item (6)
when five gallons of
coolant have drained
from item (3).
5.
Draincock (8).
a. Place a suitable container
underneath.
b. Open and let coolant drain
out.
c. When coolant stops drain-
ing, close.
3-252
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