4-122. AIR CONDITIONER DRAIN HOSE REPLACEMENT (M373A3, M373A4, AND
Remove nipple (5) from coupling (6) welded to floor.
Note position of check valve for Installation.
Remove check valve (7) from nipple (8).
Remove nipple (8) from coupling (6) welded to floor.
Remove pipe plug (3) from tee (4).
CLEANING AND INSPECTION
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear protective goggles
and gloves, and use only in a well-ventiiated area. Avoid contact with skin, eyes, and
clothes, and DO NOT breathe vapors. DO NOT use near open frame or excessive heat.
The solvent's flash point is 100F-138F (38C-59C). if you become dizzy while
using cleaning solvent, immediately get fresh air and medical help. If solvent contacts
eyes, immediately wash your eyes and get medical aid.
Clean all metal parts with dry cleaning solvent and dry thoroughly.
inspect ail parts for defects and damage. Replace defective and damaged parts. .