TM 9-2320-209-34-2-3 b. 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. CAUTION Do not let solvent get inside power divider housing. Solvent will break down gear lubricating oil and cause damage to operation of power divider. (1) Carefully clean oil seal seat with solvent. (2) Dry part with clean rags. 18-221