TM 9-2350-238-10
OPERATION OF AUXILIARY EQUIPMENT–CONTINUED
OPERATJIVG GAS-PARTICULATE FILTER UNIT–CONTINUED
GAS FILTER REPLACEMENT UNITS
Type of Attack
Duration
of
attack
(min)
2
4
6
8
10
12
14
16
18
2
0
Ground-
delivered
nerve
agents
(units used)
1/2
1
1
1/2
2
2
1/2
3
3
1/2
4
4
1/2
5
Each air-
delivered nerve
agent attack and
all blister agent
attacks except
CX (units used)
1
2
3
4
6
7
8
9
10
CX
(units
used)
5
10
20
30
4
0
50
60
70
80
90
100
CX and ail
other agents
including
unidentified
agents (units
used)
6
12
18
24
30
36
4
2
4
8
54
60
An attack lasting less than 2 minutes is considered to have a duration of 2 minutes. An attack
lasting longer than 2 minutes but less than 4 minutes is considered to have a duration of 4
minutes. Similar consideration is given to attacks up to 20 minutes.
To calculate number of units used in an attack longer than 20 minutes, the following formula
may be used: Multiply duration (number of minutes) by number of units shown on line 1 of ap-
propriate attack column and divide by 2. For example, a filter exposed to a 30-minute air-
delivered nerve agent attack would use 15 replacement units, as follows:
30 minutes x 1 unit
—
— — —
2
= 15 units
12 After operation, perform after operation
preventive maintenance checks and
services.
INSTALLING COMMUNICATIONS EQUIPMENT
radio set AN/VRC-13, -14, or -15 with inter-
phone. These radio sets provide for crew in-
tercommunication and for voice communica-
Make sure communication
tion between other vehicles, aircraft, and field
equipment is off before starting
units. Maximum reliable distance for these
engine.
radios is 50 miles (80.5 km). See TM 11-291
or TM 11-5820-401-10-1, supplied with
The M578 recovery vehicle is equipped with
equipment, for detailed instructions on the
a radio set AN/VRC-46 with interphone or a
use of radio equipment.
2-96
