TM-9-2320-428-10
TRUCK, CARGO, 8X8, M977
TECHNICAL MANUAL; OPERATOR'S MANUAL
JUNE 2009
TM-9-2320-428-10 - Page 215 of 1072
OPERATE WINDSHIELD DEFROST
NOTE
If windshield defrost does not blow hot air, ensure heater valves are open.
1.
Pull out DEFROST control (4) to turn on.
AIR
HEAT
DEFROST
LO-OFF-HI
FAN
3
1
4
2
Figure 2.
2.
Pull out HEAT control (1) to desired position.
3.
Set FAN switch (2) to desired position.
4.
When defrost is no longer required:
a.
Push in DEFROST control (4) to turn off.
b.
Push in HEAT control (1) to turn heater off.
TM 9-2320-428-10
0036
0036-3
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