TM 3-6665-302-34
INTRODUCTION
Section I. GENERAL
1-1. Scope
unit are major components of the M8 and M1O
through M18 chemical agent alarm systems.
These instructions are for use by direct support and
general support maintenance personnel. They apply
to Detector Unit, Chemical Agent Automatic Alarm,
Equipment maintenance forms and procedures for
M43 and Alarm Unit, Chemical Agent Automatic
their use are prescribed in TM 38-750.
Alarm, M42. The M43 detector unit and M42 alarm
Section Il. DESCRIPTION AND DATA
Item
Description, Ref. No. FSCM
National stock number
6 Coating kit, printed circuit board:
1-3. Description
1lb kit
TM 3-6665-225-12 contains general descriptions of
TC3047AB
(03171)
the M43 detector unit and the M42 alarm unit.
8030-00-083-8403
7 Primer: rubber
SS4004
(01139)
a. TM 3-6665-225-12 contains the operating and
8030-00-843-0802
8 Adhesive: synthetic rubber, paste
performance characteristics as well as the dimen-
form, 3 oz tube
MIL-A-48106
sions and weights of the M43 detector unit and the
(81349)
M42 alarm unit.
9 Adhesive: synthetic rubber,
liquid form, 1 pt can
and material required for the maintenance of this
MMMA1617
equipment.
(81348)
8040-00-945-0590
10 Adhesive: silicone, paste form, 2
oz tube
1290772
(80064)
The supplies and material listed in this table are required for
maintenance of this equipment and are authorized to be
requisitioned by CTA 50-970, Expendable Items (Except: Medical
Class V, Repair Parts and Heraldic Items).
The bottom case assembly is assigned reference
Description, Ref. No. FSCM
Item
National stock number
designation 1A1, and the detector assembly is
1 Insulating compound, electrical:
5970-00-950-9856
assigned reference designation 1A2. Components of
paste form, 12 oz tube
the bottom case assembly are assigned 1A1 as a
RTV112
prefix to their reference designations. Components
(01139)
of the detector unit assembly are assigned 1A2 as a
2 Sealing compound: liquid form,
prefix to their reference designations.
yellow, 1 pt can
MIL-S-22473
a. Pump Assembly 1A2A1. Components of the
(81349)
pump assembly have their reference designations
3 Sealing compound:
prefixed with 1A2A1.
unpolymerized compound,
b. Chassis Assembly 1A2A2. Components of the
liquid form, blue, 50 cc plastic
chassis assembly have their reference designations
bottle
MIL-S-22473
prefixed with 1A2A2.
(81349)
c. Cell Block Assembly 1A2A2A3. Components of
4 Sealing compound: liquid form,
the cell block assembly have their reference designa-
brown, 8 oz tube
tions prefixed with 1A2A2A3.
MIL-S-22473
d. Electronic Module Assembly 1A2A4. The elec-
(81349)
5 Seailing compound: silicon rubber,
tronic module assembly has a reference designation
clear, w/separate catalyst,
of 1A2A4.
liquid form, 1 lb kit
e. Case Top Assembly 1A2A5. Components of the
RTV615
case top assembly have their reference designations
(01139)
prefixed with 1A2A5.
1-1 Change 2
