TM 5-4520-253-13
S E R V I C E / T E S T / R E M O V E / l N S T A L L I G N I T E R A S S E M B L Y ( C O N T)
Dry cleaning solvent P-D-680 (safety or Stoddard’s Solvent)
is potentially dangerous.
Avoid repeated and prolonged
breathing of vapors and skin contact with the liquid. Do
not use near open flame, arcing equipment, or other igni-
tion sources. Always wear eye protection and protective
clothing. Flash point of P-D-680 is 100° to 138° F (38° to
59° C).
Death or serious injury could occur if compressed air is
directed against the skin.
Do not use compressed air for
cleaning or drying unless the pressure is/has been reduced to
30 psi (207 kPa) or less. When working with compressed
air always use chip guards, eye protection, and other per-
sonal protective equipment.
2.
3.
4.
Clean igniter assembly (2) in P-D-680 dry cleaning solvent.
Shake off excess solvent and dry with
compressed air.
Check electrode (4) at end of sleeve (5). It should be in center of hole in end face (6). If
needed, use small screwdriver or similar tool and bend electrode slightly until it is centered.
End of electrode must be flush with end face (6) to 0.010 in. (0.254 mm) underflush. If igniter
assembly (2) fails to meet these dimensions or is badly fouled or burned, replace.
TESTING:
When attaching ignition cable to igniter, tighten manually
and turn nut only about 1/4 additional turn. Avoid over-
tightening.
1. Connect ignition cable (1) to igniter assembly (2).
2. Block burner head port (3) by stuffing with rag or other means.
3. Disconnect fuel pump cable from EXTERNAL FUEL PUMP RECEPTACLE and close shutoff
valve at fuel container.
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