TM-9-2350-311-10

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; OPERATOR’S MANUAL

NOVEMBER 1994
TM-9-2350-311-10

  TM-9-2350-311-10 - Page 610 of 775

TM 9--2350--311--10
5--74
Change 6
5--12 MAINTENANCE — CONTINUED
c. M3 Series and M4 Series Propelling Charges
1
Visually inspect M3 series and M4 series propelling charges for the following defects.
(a) Loose tie straps, allowing separation of the charge into increments.
(b) Missing increment, extra increment, or incorrect sequencing (order) of increments.
(c)
Increment bags torn or damaged to the extent that black powder or propellant spills out.
(d) Wet propelling charge.
(e) Missing or damaged red igniter pad on base of charge.
2
Charges requiring retying may be retied as follows.
(a) Assemble increments in correct order.
(b) Tie the four tie straps over top of charge.
3
Return all defective charges to the ammunition supply point (ASP).
d. M119 Series, M203 Series, and M231 and M232/M232A1 Propelling Charges
1
Visually inspect M119 series, M203, and M231 and M232/M232A1 series propelling charges for the
following defects.
(a) Missing flash reducer. (Flash reducer is sewn into sides of charge bag on M119A2 propelling
charge.)
(b) Charge bag ripped or damaged to the extent that propellant can escape.
(c)
Black powder leaking from base igniter pad.
(d) Base igniter pad not centered with respect to outer diameter of charge, both ends for the M231 and
M232 charges.
(e) Evidence of broken or damaged central igniter tube (M119A1, M203, M231 and M232/M232A1
only).
(f)
Combustible case for M231 and M232/M232A1 charges with a cut or puncture through case wall.
(g) Combustible case for M231 and M232/M232A1 charges with uneven cap (crooked, tilted, or
slanted).
(h) Combustible case for M231 and M232/M232A1 charges that cannot be replaced into its sleeve due
to exterior damage.
(i)
Tie straps not tight over forward end of charge.
(j)
Lacing jacket not secure on propelling charge (M119A1 and M203 only).
(k)
Cord missing or broken on lacing jacket (M119A1 and M203 only).
(l)
Crushed or distorted cases or missing/broken propellant in M203A1 charges.
2
If tie straps are loose, retighten the straps at the forward end of the propelling charge.
3
Return all defective propelling charges to the ammunition supply point (ASP).


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