TM 9-2815-210-34-2-2
4-58. FLAME HEATER SPARK PLUG (UNCOVERED SYSTEM).
a. Cleaning and Inspection.
FRAME 1
1.
Clean spark plug.
Refer to TM 9-4910-389-12.
2.
Check that spark plug case (1) is not cracked.
3.
Check that spark plug electrodes (2) are not cracked or bent.
4.
Check that threads (3) are not crossed or burred.
END OF TASK
4-526