TM 9-2320-209-20-3-4 c. Repair. FRAME 1 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. 1. Soak transmission breather (1) in solvent. 2. Using wire brush, brush all dirt from transmission breather (1). 3. Clean passage (2) and make sure valve cap (3) moves freely. 4. Use clean lubricating oil to lubricate transmission breather (1). END OF TASK 23-109