Inspect outside surfaces of equipment for dirt, grease, dust, and fungus.
Remove dust, fungus, and loose dirt on cases and connectors with soft, clean cloth (Appx. D, item 40) or brush
(Appx. D, item 7).
P-D-680 type II dry-cleaning solvent is hazardous. Wear protective clothing
and eye protection when using. Do not expose dry-cleaning solvent to high
temperatures (over 130°F [54oC]). Use only in well-ventilated areas.
Keep all doors and hatches open when using dry-cleaning solvent or mineral
spirits paint thinner. Fumes are toxic. Do not use near open flame.
Use dry-cleaning solvent (Appx. D, item 16) or mineral spirits paint thinner (Appx. D, item 48) on cloth (Appx. D,
item 40) to remove grease and dirt from cases.
Clean front panels and knobs with clean cloth. If dirt is hard to remove, dampen cloth with water. Use mild soap
(Appx. D, item 10) if necessary.
4-5. REFERENCES. Refer to Appendix A for further information for radio and intercommunication equipment supplied