Transcriber’s Notes
The spelling, hyphenation and punctuation is as the original, with the
exception of apparent typographical errors.
Italic text is denoted as _underscore_.
Bold text is denoted as =equals sign=.
Underlined text is also denoted as _underscore_, Generally used at
beginning of paragraphs.
_War Department Technical Manual_
_TM 3-376A_
PORTABLE
FLAME THROWER
M2-2
[Illustration: Printer’s mark]
_RESTRICTED_
DISSEMINATION OF RESTRICTED MATTER. The information contained in
restricted documents and the essential characteristics of restricted
material may be given to any person known to be in the service of
the United States and to persons of undoubted loyalty and discretion
who are cooperating in Government work, but will not be communicated
to the public or to the press except by authorized military public
relations agencies. (See also par. 18b, AR 380-5, 28 Sep 1942.)
_War Department - 16 May 1944_
_Washington, D. C._
WAR DEPARTMENT,
Washington, 25, D. C. 16 May 1944
TM 3-376A, Portable Flame Thrower M2-2 is published for the information
and guidance of all concerned.
[A. G. 300.7 (21 March 44)]
By order of the Secretary of War:
G. C. MARSHALL,
_Chief of Staff_.
Official:
J. A. ULIO,
_Major General_,
_The Adjutant General_.
Distribution:
R & H (5); Bn 2, 7, 17 (2); C & H 3 (5); IC & H 5 (5); C 2, 7, 17
(2); X. ID: T/O & E 72T, Light Div; 17, Armd Div; IR: T/O 5-192, Hq
& Hq Co, Engr Comb Gr; 5-171, Engr Comb Regt; IBn: T/O 5-15, Engr
Comb Bn; 5-35, Engr Bn Sep; 5-175, Engr Bn, Comb Regt; 5-215, Armd
Engr Bn; 5-475T, Engr Bn, Light Div; IC: T/O 5-16, Hq & Hq & Sv Co,
Engr Combat Bn; 5-17, Engr Comb Co; 5-192, Hq & Hq Co, Engr Comb Gr;
5-36, Hq & Hq & Sv Co, Engr Bn (Sep); 5-37, Co, Engr Bn (Sep); 5-176,
Hq & Hq Det, Engr Bn, Engr Comb Regt; 5-216, Hq & Hq Co, Armd Engr
Bn; 5-217, Co, Armd Engr Bn; 5-476T, Hq & Hq Co, Engr Bn, Light Div;
5477-T, Co, Engr Bn, Light Div.
(For explanation of symbols see Par 26, FM 21-6)
TECHNICAL MANUAL
PORTABLE FLAME THROWER M2-2
WAR DEPARTMENT
WASHINGTON, 25, D. C., 16 May 1945
CHANGES}
No. 1 }
TM 3-376A, 16 May 1944, is changed as follows:
=10. ITEMS WITH EACH FLAME THROWER.=
* * * * *
_b. Kit, spare parts, for portable flame thrower M2-2, assembly
B81-6-=190=._
* * * * *
_g._ (Added). Army Service Forces Catalog CW 7-440114, Organizational
Spare Parts and Equipment: 1st and 2d Echelons: for Flame Thrower,
Portable, M2-2.
Fig. 8. Contents of tool kit:
* * * * *
B. 1 Wrench, hex, * * * set screws, H22-49-12.
=2 Wrench, hex, 5/32-inch across flats for 5/16-inch socket-head
set screws, H22-49-140.=
* * * * *
Fig 9. Contents of spare parts kit:
F. (Added). 3 Tubes, deflector, A81-1-501. (See fig. 39.)
G. (Added). 3 Locknuts, pipe, hex, 1/8-inch, H98-5-382 (for use
with deflector tube). (See fig. 39.)
H. (Added). 1 Support, diaphragm, A81-1-428. (See fig. 47.)
=12. NEW EQUIPMENT.=
* * * * *
_m._ (Added). New gun may be received with valve spring removed from
barrel and valve assembly. Spring comes tied to barrel. This is done to
prevent strain on valve diaphragm assembly caused by pressure of spring
in gun during storage and shipment. When weapon is being prepared for
operation, spring must be untied from barrel and installed in gun, as
described in paragraph 75.
_n._ (Added). Pressure regulator may be shipped at zero adjustment
to prevent possibility of strain on diaphragm during shipment and
storage. A regulator shipped in this condition has a tag (tied to the
tank coupling) stating that the regulator is not set. When weapon
is received in this condition, it must be adjusted as described in
paragraph 67 before it can be operated.
Footnote:
=*These changes supersede TB 3-376A-1, 19 October 1944.=
=15. TRAINING.=
* * * * *
_b. Use of water in training._ Water may be used (instead of fuel)
for elementary practice firing. Ignition cylinders are * * * piece,
and lubricated (Par. 49). =Use of water, however, should always be
supplemented by firing ignited fuel because water does not give a
correct impression of stream and flame characteristics.=
* * * * *
=17. CONNECTING TANK GROUP AND GUN GROUP.=
* * * * *
_a._ Place the new * * * to 2 minutes. =Slight pressure sometimes
builds up in the fuel tanks, even though the pressure-tank valve has
not been opened, and causes some overflow of fuel when the coupling
plug is removed. This pressure may be relieved by—=
=(1) Standing the tank group upright.=
=(2) Slightly opening filling plug on top of fuel tanks to
bleed the pressure.=
=(3) Closing the opening at filling plug and tightening it
with wrench.=
* * * * *
=18. LOADING WITH IGNITION CYLINDER.=
* * * * *
_b. Precautions._ Care must be * * * front of gun. =Do not ignite
the ignition cartridge until the weapon is to be fired at the
target.=
* * * * *
=30. AFTER FIRING.=
When the firer * * * mission, he should:
_a._ =First=, remove and discard the ignition cylinder, =as the
ignition cylinder should never be present when blowing out fuel or
after blowing out fuel except when preparing for a new mission. To
remove cylinder, proceed= as follows:
* * * * *
_b._ Close the pressure-tank valve by turning valve handle clockwise
(to conserve remaining pressure in pressure tank) =only if additional
shots are to be fired before refilling and recharging=.
_c._ =If no additional shots are to be fired before refilling
and recharging, open pressure-tank valve by turning handle
counterclockwise.= Point the gun away from personnel and blow out the
remaining fuel =and pressure=, if any, from the fuel tanks by squeezing
the valve lever and grip safety until there is no further discharge.
The trigger should not be used during this operation. =Then close the
pressure-tank valve to prevent entrance of foreign matter into the
pressure system.=
_d._ (Superseded). Carefully remove tank group from the back. This may
be done most easily by sitting or squatting with back to a tree stump,
flat rock, packing box, or other object. Release the body and shoulder
straps and ease tank group off the back. Avoid dropping equipment on
the ground as this may damage it.
* * * * *
=31. IGNITION CYLINDER.=
* * * * *
_c. Packing._ Ignition cylinders are * * * each flame thrower. Fifty
cans (100 ignition cylinders) are contained in each =ignition cylinder=
packing box. =Wooden packing box with contents weighs approximately 50
to 55 pounds. Outside dimensions of the box are approximately 16-1/4
inches by 14-3/4 inches by 10-1/4 inches. Cubage is 1-3/12 cubic feet.=
* * * * *
=32. CHARGING PRESSURE TANK.=
* * * * *
_b. Charging from air compressor._ Compressor, air, gasoline * * *
cylinders as well. Instructions for use of the compressor will be found
in =TM 3-377=.
* * * * *
=Figure 23.= Charging two pressure tanks, using charging and filling
lines, and cylinders of compressed air or nitrogen. =As many as four
pressure tank and valve assemblies, on or off tank groups, can be
charged at one time from cylinders coupled as shown in figure 24.=
=33. PRECAUTIONS WHEN PRESSURE-CHARGING.=
* * * * *
_m._ (Added). Inspect carefully to be certain that no traces of grease,
flame thrower fuel, oil, dirt, or other foreign matter are present in
flame thrower pressure tanks, outlets of air compressor, connections,
hose, or cylinders containing compressed air.
_n._ (Added). Hands and tools must be free of oil or grease when
charging or servicing flame thrower pressure systems.
_o._ (Added). Discharge any remaining compressed air in flame thrower
pressure tanks before recharging.
_p._ (Added). If compressed air is to be used, and if any grease, oil,
or flame thrower fuel is detected by sense of smell or sight within
pressure tank and valve assemblies or cylinders, return tanks or
cylinders for cleaning to the appropriate third-echelon maintenance
agency of Chemical Warfare Service.
=35.1 PEPTIZED FUELS= (Added).
_a. Characteristics._
(1) Pour more readily than usual thickened fuels.
(2) Give a larger diameter flame than thickened fuels.
(3) Give longer effective ranges than liquid fuels.
(4) Prepared more quickly in cool temperatures than thickened fuels.
_b. Preparation._
(1) Open 5-1/4-pound can or cans of thickener.
(2) Add 2 mess kit spoonfuls of water to each can of thickener. Stir
until the water disappears in the thickener. It is not necessary to mix
the water uniformly with all of the thickener.
(3) Proceed at once as directed in paragraph 35. Avoid accidental
addition of any water to the thickener or fuel other than that stated
in (2) above.
(4) Peptized fuels set a little more quickly than the usual thickened
fuels, but their general appearance after setting is the same. After
standing, however, peptized fuels spontaneously become thinner and
may be poured without use of pressure. The time it takes for thinning
to occur depends on the temperature of the fuel. At 75° Fahrenheit or
higher, thinning occurs in approximately 1 to 2 hours. At temperatures
below 60° Fahrenheit, thinning occurs several days after preparation of
the peptized fuel.
(5) If water has accidentally gotten into fuel before addition of
the thickener, peptizing action takes place, but the results are
unpredictable because the quantity of water added is not controlled.
=36. PREPARATION OF LIQUID FUELS.=
_a. Choice of ingredients._ Thin fuels are * * * reaching the target.
For this reason, liquid fuels should contain the lowest proportion of
gasoline and the highest proportion of heavier fuels that permit easy
ignition. In hot climates, * * * of great importance. =The gasoline
used can be any U. S. grade of motor fuel or aviation gasoline.=
Suitable blends are as follows:
* * * * *
(3) (Added). By volume, 20 to 25 percent gasoline and 75 to 80 percent
light fuel oil.
* * * * *
=40.1 USE OF PACKBOARDS= (Added).
Detachable pressure tank and valve assemblies (par. 66.1) make possible
the use of packboards for transporting pressure tanks, 5-gallon
cans of fuel, wrenches, and additional ignition cylinders close to the
front line of combat to troops using flame throwers. As packboards
are not manufactured specifically for servicing flame throwers, standard
quartermaster-issue packboards are used. Packboard transportation
is practicable only with pourable fuel. (Pourable fuels include
some thickened fuels and all liquid fuels.)
_a._ The following is a suggested procedure for packboard
transportation:
(1) Lash all necessary filling and charging supplies for one flame
thrower to packboard, using lashing rope and straps.
(2) Tie one pressure tank and valve assembly to top of one flat 5-gallon
fuel can so that flexible shaft and handle hang down parallel to
one side of the fuel can.
(3) Carry wrench with large enough opening to unscrew filling
plugs from tops of fuel tanks and to tighten plugs after filling.
(4) Carry extra ignition cylinders.
_b._ Return empty pressure tank and valve assembly along with empty
fuel can and wrench on packboard to flame thrower servicing point.
_c._ If a supply of flame thrower tank groups is available, they may
be preferred to the packboard method of transportation. Tank
groups are easy to carry, and a filled and charged tank group can
replace an emptied one as quickly as packboard method can be used to
service flame thrower.
* * * * *
=48. SERVICE KIT.=
* * * * *
_a. Tools._
* * * * *
1 Screw driver, common, * * * blade diameter, H22-50-6. (Fig. 8.)
=2 Wrenches, hex, 5/32 inch across flats (for 5/16-inch socket-head
set screws), H22-49-140. (See B, fig. 8.)=
2 Wrenches, hex, * * * set screws), H22-49-91.
* * * * *
_b. Accessories and spare parts._
* * * * *
1 Tank and valve, pressure, assembly =(less valve shaft assembly,
B81-1-883) B81-1-879. (See fig. 35.2.)=
1 Shaft, valve, assembly =B-81-1-883. (See fig. 35.2.)=
2 Case, spring, assemblies B81-1-444. (Fig. 9.)
* * * * *
1 Regulator, pressure, assembly =(Grove type) B81-1-778. (Fig.
35.2.)=
1 Compound, anti-seize, white * * * 1/4-pound can, H99-3-12.
2 Gages, pressure * * * assembly B81-6-90. (Fig. 32.)
=6 Tubes, deflector, A81-1-501. (See fig. 39.)=
=6 Locknuts, pipe, hex, 1/8-inch, H98-5-382. (See fig. 39.)=
=2 Supports, diaphragm, A81-1-428. (See fig. 47.)=
=6 Springs, R81-1-922 (for socket). (See fig. 35.8.)=
=6 Washers, backing, R81-1-924 (brass washer for socket).
(See fig. 35.8.)=
=12 Washers, B81-1-923 (synthetic rubber washer for
socket). (See fig. 35.8.)=
=6 Caps, plug, B81-1-926 (with chain) (dust cap for plug).
(See fig. 35.3.)=
=12 Nuts, wing, A81-1-877. (See fig. 35.4.)=
=2 Army Service Forces Catalogs CW 6-445115, Sets of Tools,
Equipment, and Similar Material: Kit, service, for Portable
Flame Thrower, M2-2.=
=2 Army Service Forces Catalogs CW 7-440114, Organizational
Spare Parts and Equipment: 1st and 2d Echelons:
for Flame Thrower, Portable, M2-2.=
=2 War Department Technical Manuals 3-376A, Portable
Flame Thrower M2-2.=
=49. LUBRICATION.=
_a. Gun group._
* * * * *
(2) _Frequency of lubrication._ The surfaces of * * * lubricated
before reassembly. =Do not soak or wash the spring case
assembly in solvent because this may remove the grease
which is factory packed in the spring case assembly. This
grease cannot be replaced. To clean spring case assembly,
wide outside surfaces with cloth saturated with solvent.=
* * * * *
=53. SERVICE WHEN FILLING AND CHARGING.=
* * * * *
_d. Testing for leaks in pressure system._ After charging and
* * * to test pressure. (Fig. 32.) To install gage, unscrew
check-valve cap, =moisten end of check valve with water or saliva=,
and screw gage in check-valve body. =Use of water or saliva as
lubricant prevents cutting of the rubber washer by the check
valve.= If pressure has * * * and then retested.
=66. PRESSURE TANK AND VALVE ASSEMBLY.=
_a. Description and functioning._ The pressure tank * * * assembly
(Fig. 33) includes:
(1) _Pressure tank._ The pressure tank * * * the fuel tanks. =The
pressure-tank clamp may be adjusted to different outside diameters of
pressure tanks by means of a nut and screw tightening device (fig.
35.1) or by means of a stepped ring at end of clamp.=
[Illustration: FIGURE 35.1. (Added.) Adjustable pressure tank clamp,
showing use of nut and screw tightening device.]
* * * * *
_b. Removal._ (Fig. 33.)
* * * * *
(2) _Removal procedure._
* * * * *
(_h_) (Added). To remove check valve, unscrew check valve cap and
check valve body, using wrenches.
_c. Installation._ (Figs. 33 and 39.)
* * * * *
(7) (Added). To install check valve, apply thread compound lightly to
threads of cheek valve body and screw into opening in pressure-tank
valve. Tighten check valve body in position, using wrench. Screw check
valve cap on check valve body and tighten with wrench.
* * * * *
=66.1 DETACHABLE PRESSURE TANK AND VALVE ASSEMBLIES= (Added).
Newly developed detachable pressure tank and valve assemblies provide
an improved and speedier method of servicing M2-2 portable flame
throwers in forward combat zones.
_a. Description and functioning._
(1) Detachable pressure tank and valve assemblies (figs. 35.2 and
35.3) are used in modified flame throwers. They make it unnecessary to
replace empty complete tank groups with filled and charged complete
tank groups.
(2) Replacement of complete tank group, however, may be preferred when
an extra supply of tank groups is available, or if thickened fuel is
too stringy and viscous to pour.
(3) Detachable pressure tank and valve assemblies can be attached only
to flame throwers which include sockets (figs. 35.2 and 35.3) and
shortened regulator tubes. Flame throwers produced recently include
this design modification.
(4) A plug and cap (fig. 35.3) on detachable pressure tank and valve
assembly replace tube elbow (fig. 33) used on nondetachable pressure
tank and valve assembly.
_b. Removal._ Care must be taken to prevent damage to connections
during removal and installation. The procedure for removal of pressure
tank and valve assembly is as follows:
(1) Close pressure-tank valve. Press valve lever and safety grip on gun
to release all pressure from fuel system and gun.
(2) Unscrew wing nut from valve flexible shaft. (See fig. 35.4.) Be
careful not to misplace wing nut.
(3) Pull clamp and shaft from stud which is welded on fuel tank.
(4) With one hand under pressure tank, unclamp but do not fully open
pressure-tank clamp.
(5) Supporting pressure tank valve with top of right hand, push knurled
socket in and away from pressure tank valve. Left hand may be placed
at back of regulator tube so that tube does not bend away from socket.
(See fig. 35.5.) Pull out pressure tank and valve assembly.
[Illustration: FIGURE 35.2. (Added.) Pressure system disassembled,
showing removable pressure tank and valve assembly, nomenclature, and
Chemical Warfare Service stock numbers.]
[Illustration: FIGURE 35.3. (Added.) Detachable pressure tank and valve
assembly, connected to modified regulator tube assembly.]
[Illustration: FIGURE 35.4. (Added.) Removing wing nut to free valve
flexible shaft.]
[Illustration: FIGURE 35.5. (Added.) Pushing knurled socket away from
pressure tank, permitting pressure tank and valve assembly to be
removed from tank group.]
(6) Put cap as far as it will go over opening of the plug. (See fig.
35.6.) This prevents dust and other foreign matter from entering empty
pressure tank.
(7) Flame thrower is now ready to receive a charged pressure tank and
valve assembly. (See fig. 35.7.)
_c. Installation._ To install a charged or replacement detachable
pressure tank and valve assembly, proceed as follows:
(1) Remove dust cap from plug of charged pressure tank and valve
assembly. (Never open pressure-tank valve with cap on plug.)
[Illustration: FIGURE 35.6. (Added.) Pressure tank and valve assembly
with dust cap over plug opening.]
(2) Support socket and tube with left hand and insert plug in socket
with right hand. If tube is not supported, it is difficult to lock the
plug in the socket and it is possible that tube may become bent. Press
bottom of tank until plug snaps into socket. Test by attempting to pull
tank and plug from socket. Plug must not pull out; if it does, insert
again and press bottom of tank. Grasp knurled collar of socket and test
for end play. If collar slides freely back and forth on socket, the
connection is not tight and plug should be pressed in farther.
[Illustration: FIGURE 35.7. (Added.) Tank group, ready to receive a
charged pressure tank and valve assembly.]
(3) Replace small clamp (valve-stem clamp) over stud projecting from
fuel tank, and screw wing nut on stud to secure valve flexible shaft in
place. Do not use wrench on wing nut.
_d. Maintenance._ Follow maintenance instructions given in paragraph
66. In addition, if leaks occur and signs of wear are visible, carry
out the following procedures:
(1) _Worn washer._ Replace synthetic rubber washer by disassembling
socket (fig. 35.8), prying out washer, placing new washer in position,
and reassembling socket.
[Illustration: FIGURE 35.8. (Added.) Cutaway view of socket
and plug. Disassembly is permitted only as directed in paragraph 66.1.]
(2) _Damaged plug._ Repair damaged or nicked end of plug by filing plug
end square and smooth. File off as little as possible. Test for leakage
at socket by installing pressure tank and valve assembly, as in c
above, and then opening pressure-tank valve. If leak persists at joint
between socket and plug, replace plug by unscrewing old plug, screwing
new plug in position, and tightening with wrench. Replace entire plug.
Do not attempt to unscrew the cylindrical portion from the square
portion.
=67. PRESSURE REGULATOR.=
* * * * *
_e. Maintenance_ (Added).
(1) _Spring type (Hoke) pressure regulator._ Except for adjustment to
increase or decrease pressure, do not attempt to maintain or repair the
spring type (Hoke) pressure regulator. If damaged or defective, it must
be replaced by a dome type (Grove) pressure regulator.
(2) _Dome type (Grove) pressure regulator (B81-1-778)._ Replacement
parts for maintaining the dome type (Grove) regulator are available for
use by chemical maintenance companies, as shown in Army Service Forces
Catalog CW 9-440114, List of All Service Parts and Higher Echelon Spare
Parts for Flame Thrower, Portable, M2-2 (25 November 1944).
=74. VALVE GRIP.=
* * * * *
_c. Installing valve grip._
(1) Place grip safety * * * right valve grip. (Fig. 48.) =Do not
accidentally place the lower forward extension of the grip safety
over the lower rear extension of the valve lever. If this overlapping
occurs, the small projection at the bottom of the grip safety may be
broken off.= Be sure the * * * of grip safety.
* * * * *
=77. SHIPMENT AND STORAGE.=
* * * * *
_c. Class of supply_ (Added). The portable flame thrower is a class IV
supply item.
=78. REFERENCES.=
Reference pertaining to * * * flame throwers include:
* * * * *
TM 9-850 Cleaning, Preserving, Lubricating * * * the Ordnance
Department
=TM 3-377, Compressor, Air, Gasoline Engine-driven, 7CFM, M1 (For
Charging Flame Throwers and Cylinders)=
=TB CW 18, Kit, Fuel Filling, Flame Thrower, E6 (for filling
mechanized and portable flame throwers)[A]=
=TB CW 20, Cleaning Interiors of Compressed Gas Cylinders, Tanks, and
Accessories[A]=
=TB ENG 39, Safe Handling of Compressed Gases[A]=
=ASF Catalog CW 7-440114, Organizational Spare Parts and Equipment:
1st and 2d Echelons: for Flame Thrower, Portable, M2-2 (25 November
1944)=
=ASF Catalog CW 9-440114, List of all Service Parts and Higher
Echelon Spare Parts for Flame Thrower, Portable, M2-2=
=ASF Catalog CW 6-445115, Sets of Tools, Equipment, and Similar
Material: Kit, Service, for Portable Flame Thrower, M2-2=
=ASF Catalog CW 9-445115, List of all Parts and Higher Echelon Spare
Parts for Kit, Service, for Portable Flame Thrower, M2-2=
=FS 3-33, Portable Flame Thrower M2-2, Part 1, Nomenclature and
Operation.=
Footnote:
[A] Technical Bulletins are to be superseded by appropriate War
Department manuals or changes to manuals.
[AG 300.7 (11 Apr 45)]
BY ORDER OF THE SECRETARY OF WAR:
OFFICIAL:
G. C. MARSHALL
_Chief of Staff_
J. A. ULIO
_Major General_
_The Adjutant General_
DISTRIBUTION:
AAF (Cml O) (10); AGF (Cml O) (10); ASF (2); T of Opn (Cml O) (10);
Arm & Sv Bds (1); Def Comd (2); S Div ASF (1); Tech Sv (2) except
CWS (45); SvC (Cml O) (4); PE (Attn: Cml O) (2); Sub-PE (Cml O) (2);
PG (2); Ars 3 (2); ASF Dep (CW Sec) (2); ASF Dep (2); Dep 3 (2); Pro
Dist 3 (2); Tech Sv C (2); USMA (20); Tng C (2); A (2); CHQ (5); B
(1); R (5); Bn 2 (2), 3 (5), 7, 17 (2); C 2 (2), 3 (5), 7, 17 (2);
AF (2); W (Cml O) (1); Five (5) copies to each of the following: T/O
& E 5-15; 5-16; 5-17; 5-35; 5-36; 5-37; 5-171; 5-175; 5-176; 5-192;
5-215; 5-216; 5-217; 5-235; 5-236; 5-238; 5-475T; 5-476T; 5-477T.
Refer to FM 21-6 for explanation of distribution formula.
TABLE OF CONTENTS
PART ONE
INTRODUCTION
_Paragraph_ _Page_
SECTION I. GENERAL
Scope 1 1
Records 2 1
SECTION II. DESCRIPTION AND DATA
Uses of flame throwers 3 1
Characteristics and employment 4 4
Description and functioning 5 6
Identification information 6 9
Differences in models 7 9
Interchanging parts with M1 or M1A1 flame thrower 8 9
Data 9 9
SECTION III. TOOLS, PARTS, AND ACCESSORIES
Items with each flame thrower 10 11
PART TWO
OPERATING INSTRUCTIONS
SECTION IV. GENERAL
Scope 11 14
SECTION V. SERVICE UPON RECEIPT OF EQUIPMENT
New equipment 12 14
Used equipment 13 15
SECTION VI. CONTROLS
Controls 14 15
SECTION VII. OPERATION UNDER USUAL CONDITIONS
Training 15 16
Charging, filling, and servicing 16 16
Connecting tank group and gun group 17 16
Loading with ignition cylinder 18 17
Carrying the tank group 19 21
Carrying the gun 20 21
Opening pressure-tank valve 21 22
Ranges 22 22
Wind deflection 23 22
Firing positions 24 23
Aiming 25 23
Firing 26 23
Ceasing or interrupting fire 27 26
Additional bursts 28 26
Soaking the target 29 26
After firing 30 26
SECTION VIII. AUXILIARY EQUIPMENT
Ignition cylinder 31 27
Charging pressure tank 32 28
Precautions when pressure-charging 33 32
Characteristics of fuels 34 33
Preparation of thickened fuels 35 34
Preparation of liquid fuels 36 38
Filling by pouring 37 39
Filling by force pump 38 40
Filling by blowing 39 40
Precautions with fuels 40 43
SECTION IX. OPERATION UNDER UNUSUAL CONDITIONS
Wet conditions 41 44
Dust and mud 42 44
Heat 43 44
Cold 44 45
Wind 45 45
SECTION X. DEMOLITION TO PREVENT ENEMY USE
Destruction procedure 46 45
PART THREE
MAINTENANCE INSTRUCTIONS
SECTION XI. GENERAL
Scope 47 46
SECTION XII. SPECIAL ORGANIZATIONAL TOOLS
AND EQUIPMENT
Service kit 48 46
SECTION XIII. LUBRICATION
Lubrication 49 49
SECTION XIV. PREVENTIVE MAINTENANCE SERVICES
General 50 49
Before-operation service of tank group 51 50
Before-operation service of gun group 52 50
Service when filling and charging 53 52
Service when firing 54 53
Service after firing 55 53
Service after six firing missions 56 54
SECTION XV. TROUBLE SHOOTING
Precautions 57 55
Fuel leaks 58 55
Safety head “blows” (breaks) 59 56
Carrier uncomfortable 60 56
Short range 61 56
Fuel-valve failure 62 57
Failure of ignition cylinder to ignite 63 57
Failure of fuel to ignite 64 58
SECTION XVI. TANK GROUP
General 65 58
Pressure tank and valve assembly 66 59
Pressure regulator 67 63
Fuel-tank assembly 68 65
Filling and safety-head plug assemblies 69 67
Tank coupling 70 69
Carrier 71 71
SECTION XVII. GUN GROUP
General 72 74
Fuel-hose assembly 73 74
Valve grip 74 75
Barrel and valve-body assembly 75 77
Ignition head 76 82
APPENDIX
SECTION XVIII. SHIPMENT AND STORAGE
Shipment and storage 77 86
SECTION XIX. LIST OF REFERENCES
References 78 87
INDEX
[Illustration: Fig 1. Portable flame thrower M2-2.]
PART ONE
INTRODUCTION
Section I GENERAL
1. SCOPE.
_a. Arrangement._ This manual is published to guide and inform
personnel using and maintaining flame thrower, portable, M2-2. Part One
contains general information; Part Two is a guide to operation; Part
Three gives maintenance procedures. The Appendix discusses shipment and
storage procedures, and applicable publications.
_b. References._ References are listed in the Appendix. The
list includes field manuals, technical manuals, and Army Regulations.
2. RECORDS.
Although no standard maintenance forms and records are furnished,
an improvised list should be kept of the number of times each flame
thrower has been fired. The list indicates when it is necessary to
provide the after-six-missions preventive maintenance and lubrication.
It should be tacked or glued to the inside surface of the packing-chest
lid and each flame thrower should always be returned to its own chest.