ARMY
TM 5-6115-612-12
MARINE CORPS TM 6115-12/7
AIR FORCE
T0 35C2-3-471-1
NAVY
AG-320B0-0MM-000
4-47.
SPARK IGNITER. (cont)
Figure 4-32.
Typical Electrode Erosion
d. Service.
CAUTION
To prevent damage, do not attempt
to remove deposits or residue
from the firing end. Spark igni-
ter
utilizes a
semiconductor
material at the firing end that
can be damaged through improper
cleaning.
(1) Use a wire brush or a stiff-
bristled fiber brush to remove residue
from shell and shield threads.
WARNING
To prevent injury, all cleaning
solvents shall be used in a well-
ventilated area.
Avoid prolonged
breathing and skin contact. Do
not take- internally.
Do not use
near open flame.
CAUTION
To prevent damage, do not use an
abrasive blast to clean
spark
igniter shield.
(2) Clean spark igniter shield
with
decreasing
agent
such
trichloroethylene
1,1,1 (MIL-T-81533).
Dry with clean cloth.
(3) Clean
interior of
ceramic
upper barrel with soft swab soaked in
P-D-680.
Dry with compressed air.
e.
Installation.
(1) Apply
anti seize
compound
(MIL-A-907) to first two threads of
spark igniter (1).
(2) Install gasket (3), washer
(2), and spark igniter (1). Torque to
120-160 inch pounds (13.5-18 Nm).
4-105
