Improper cleaning methods and use of unauthorized cleaning agents can injure
personnel or damage equipment. To prevent this, refer to TM 9-247 for further
(1) General. Cleaning instructions will be the same for the majority of parts and components that make up the trailer.
The following applies to all cleaning operations:
Clean all parts before inspection, after repair, and before disassembly.
Keep hands free of grease that can collect dust, dirt, or grit.
After cleaning, all parts should be covered or wrapped to protect them from dust and
dirt. Parts that are subject to rust should be lightly oiled.
(2) Steam Cleaning.
Avoid contact with live steam Live steam can burn skin, cause blindness, and cause
other serious injury. Be sure to wear protective apron, gloves, and goggles when using
If trailer is to be steam cleaned, protect all electrical components that could be damaged
by steam or moisture.
(3) Castings, Forgings, and Machined Metal Parts.
Dry cleaning solvent, P-D-680, is toxic and flammable. Always wear goggles and gloves
and use solvent only in a well-ventilated area. Avoid contact with skin, eyes and clothes,
and DO NOT breathe vapors. DO NOT use near open flame or excessive heat. The
solvents flash point is 100 °F to 138 °F (38 °C to 59 °C). 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 inner and outer surfaces with dry cleaning solvent (item 5, Appendix E)
Remove grease and accumulated deposits with a scrub brush (item 2, Appendix E)