TM 5-4520-256-14
3-36. SIGHTGLASS MAINTENANCE.
This Task Covers:
a.
Removal
b.
Inspection
c.
Cleaning
d.
Installation
INITIAL SETUP:
Tools Required:
Tool Kit, General Mechanics
Materials Required:
Cleaning Solvent (Item 11, Appendix E)
Glass Cleaner (Item 3, Appendix E)
WARNING
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.
Equipment Conditions:
Heater unit shut down and cool.
Power cable disconnected from power source.
3-113