3-11. EXHAUST PIPE MAINTENANCE.
This Task Covers:
Tool Kit, General Mechanics
Brush, Medium Bristle (Item 2, Appendix E)
Cleaning Solvent (Item 11, Appendix E)
Cleaning solvent, Federal Specification P-D-680, is toxic and flammable. Use only in a well-
ventilated area. Avoid prolonged breathing of fumes. Keep solvent away from flames. Do not
use in excessive amounts. Avoid skin contact.
Heater unit shut down and cool.
Power cable disconnected from power source.
Slide top exhaust pipe (2) and middle exhaust pipe (3) off of tube and guard assembly (4).
Remove tube and guard assembly (4) from exhaust tube assembly (5).
Loosen four captive bolts (6) and remove exhaust tube assembly (5) from heater unit.