TM 9-2320-209-34-2-2 d. Cleaning. WARNING Dry cleaning solvent is flammable. Do not use near an open flame. Keep a fire extinguisher nearby when solvent is used. Use only in well-ventilated places. Failure to do this may result in injury to personnel and damage to equipment. Eye injury can occur if eye shields are not used. (1) Clean all metal parts in solvent. Let parts dry. (2) Clean windows and insulators with soap and water. Dry window with clean lint-free cloth. 17-404