TM 3-1040-220-12&P
(5) Using a hammer, tap lightly around the outside
Disassemble the agent container, outlet valve, and
of the nozzle and the container neck to dislodge any
hoses as required for decontamination. Parts should be
agent clinging to the nozzle.
placed in the decontaminating solution for a minimum of
(6) Position the assembled unit so that the ball valve
30 minutes. The agent tank can be cleaned with solution
outlet faces downwind. Slowly open the ball valve and
and a brush. External contamination can be removed
allow the pressure remaining in the agent container and
using a cloth wetted with the decontaminating solution.
nozz!e to bleed off.
Flush all parts using clear water and dry using low
(7) Loosen the wing nut on the clamp that secures
pressure compressed air.
the ball valve and nozzle to the container neck. Remove
(10)Wash down the remaining portions of tile
the ball valve and nozzle, clamp, and preformed packing.
disperser using a stream of water. Dry equipment
(8) Empty any remaining agent into a plastic bag.
thoroughly. c. After Mission Services. M5 disperser is a
Tap the agent container lightly with a hammer to dislodge
special purpose weapon. When decontamination of the
as much agent as possible. Seal the plastic bag with
disperser is complete, store the disperser in a secure
tape and request disposition IAW local regulations.
area. Dispersers should be serviced as far forward as
(9) Mix a decontaminating solution in a 20 gallon
practical. The M4A2 service unit can be used to service
capacity container. The mixture consists of 4 ounces of
high pressure air to the disperser if the need arises.
wetting agent (table 1-1) and 1 gallon of
monoethanolamine (MEA) (table 1-1) with 9 gallons of
4-10. Preventive Maintenance Checks and Services
water. (For decontaminating procedures see TM 3-220.)
Preventive Maintenance checks and services for
organizational maintenance personnel are contained in
Table 4-1. Organizational Preventive Maintenance Checks and Services
Q-Quarterly
Total Man-hours required: 0.8
Sequence
Work-
Number
ITEM TO BE INSPECTED
time
Q
PROCEDURE
(M/H)
1
Publications
0.1
Check that a single copy of TM 3-1040-220-12&P is with the disperser and that it is accurate and
serviceable. Check that logbook is with the disperser and that entries are current.
2
External Surfaces
0.1
Inspect for loose, missing, or damaged nuts, bolts, and other hardware. Check gages for broken
lens, legibility, and accuracy. Check condition of painted surfaces.
3
Markings and Identification
0.1
Inspect the disperser general appearance, paying particular attention to legibility of nameplates,
identification plates, and that they are securely mounted.
4
Accessories
0.2
Check for presence of and condition of accessories. Check that M9 gun and air delivery hose
assembly are serviceable.
5
Disperser
0.2
Check the agent container for dents, rust, condition of preformed packing, and serviceability of
catches. Check the operation of the handle of the ball valve and that check valve is correctly
mounted and is not faulty. Check that base welds are intact and that catches are serviceable. Check
the compressed gas cylinders for dents, rust, and that all plumbing connections are tight. Check
that dial indicating pressure gages (high and low pressure respectively) operate freely, dials not
broken, that pressure regulator is properly set, that relief valve is operative and that rupture disk
in safety head assembly is intact.
6
Control Panel
0.1
Check the control panel that no parts are missing, weldments broken, or no deformation. Check
that all identification are legible.
Section V. TROUBLESHOOTING
4-11. General
maintenance personnel to use in locating and correcting
This section contains information for organizational
malfunctions which may develop in the disperser.
4-5
