Table 4-1. Unit Preventive Maintenance Checks And Services.
Inspect for loose or missing hardware.
Inspect for holes, cracks or other signs of burn through, or
Inspect exhaust pipe for security, holes, cracks, or other
signs of exhaust leaks, and corrosion.
Remove sight glass. Clean lens with a clean soft rag.
Apply anti-seize compound (Item 3, App E) to sight glass
ad install on heat exchanger.
Inspect for loose or missing hardware. Tighten loose
hardware, replace missing hardware (para 4-32).
Inspect for loose connections, chafing or exposed wire
Holes, cracks, or
signs of burn
Loose or missing