CHAPTER 2 OPERATING INSTRUCTIONS - TM-3-4240-201-130016

TM 3-4240-201-13

CHAPTER 2

OPERATING INSTRUCTIONS

Section I. CONTROLS AND INSTRUMENTS

2-1.

General

2-2.

Toggle Switch

a. Location. The toggle switch is located on the

The toggle switch is the only control for the filter unit.

There are no instruments required for the operation of

side of the transformer case.

b. Purpose. The toggle switch is used by the

the filter unit.

operator (attendant) to turn the filter unit power supply on

and off.

Section II. OPERATION UNDER USUAL CONDITIONS

a. Preparation. The following preparations should

2-3.

General

be made by the attendant:

(1) Remove the headpiece from the carrier.

The filter unit is installed by organizational maintenance

(2) Screw the inlet adapter of the hose

personnel in a location convenient to the patients who

assembly into the inlet adapter mount of the headpiece.

are to be protected.

(3) Place the headpiece near the patient

ready for immediate use.

2-4.

Putting

Headpieces

Patients

and

(4) Make sure that the hose is long enough to

Operation

permit putting the headpiece on the bed patient without

difficulty (fig. 2-1).

WARNING

(5) Plug 115 vac power cable into 115v outlet

The mission oriented protective posture

and connect 24 vdc power cable to batteries.

(MOPP) (FM 21-40) directs that when a

b. Masking Procedure.

threat of a chemical attack exists, the

(1) Place the toggle switch on the transformer

attendant and the six patients must be

case in ON position.

masked beforehand to be safe.

(2) Make sure that air is being supplied to all

headpieces.

WARNING

(3) Place the headpiece over the patient's

Headpieces cannot be put on six

head with the eyepiece positioned over the patient's

patients by one attendant in the time the

eyes.

patients can be expected to hold their

(4) Pass the neck strap on the headpiece

breath. Therefore, since some of the

around the patient's neck. Tie the strap tight enough to

patients may be able to put on their own

restrict flow of air around the patient's neck but not so

headpieces, they should be taught to do

tight as to cause him discomfort.

so. Also, patients should be taught to

help each other don the headpieces.

2-1