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Page Title:
Defrosting. anti-icing. and ventilating |
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|  MIL-T-28571G(NAVY)
3.9.6 Hea t er and defroster. The cab shall be equipped with a hot water type
heater having fresh air intakes, and discharge outlets to the floor and side
door windows, in both front and rear sections, and windshield defroster louvers.
The heater shall be equipped with a 12V, electric-motor-driven multi-speed
blower, controlled by a dash mounted, three-position switch. The heater shall
not be positioned directly in front of any seat where it would interfere with
the feet of the firefighters or in the space between the driver and the right
side passenger seat.
3.9.6.1 Defrosting. anti-icing. and ventilating . A sufficient defrosting,
anti-icing, and ventilating system shall be provided in the cab. This system
shall have the capacity to effectively prevent formation of frost on the
interior surface of all transparent areas of the cab and to prevent the
formation of ice on the exterior of the vehicle windshield. The system shall
also maintain clear vision over at least 75 percent of the area of all windows
of the cab interior.
3.9.6.2 Cont rols . Variable controls shall be provided on air blowers and at
least a high output setting shall be furnished on the cab heating system
controls. Adequate operating instructions shall be provided at the heater
system control point. The cab heater and defroster system control shall be
mounted on the instrument panel.
3.9.7
t rument panel The cab instrument panel shall be complete with all
equipment and accessories furnished as standard items by the manufacturer. The
following minimum equipment shall be furnished and suitably identified:
a.
Indirect panel lights (to illuminate all cab switches, instruments
. and controls).
....
b. Keyless starting switch and pilot light.
c. Ammeter.
d. Fuel gage.
e. Oil pressure gage with low pressure light and alarm.
f. Engine temperature gage with high temp. light/alarm.
Speedometer with recording odometer.
Tachometer.
i. Brake air pressure gage with warning light and alarm.
j. Brake quick buildup gage with warning light and alarm.
k. Plaster warning light control switch.
1. Indicator light for safe pumping mode.
m. Pump and engine hour meter.
n. Transmission temperature gage; high temp. light/alarm.
3.9.7.1 Audi o/V isual al arms . The following operating conditions shall be
alarmed with both audio and visual alarm devices on the pump operator's panel
and with individual visual and single audio alarms on the driver's instrument
panel:
Fuel (less than 1/8 tank).
Loss of engine oil pressure.
c.
Excessive engine coolant temperature.
d.
Excessive pump transfer case temperature.
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