TM  10-3930-638-24&P 3-19.   TRANSMISSION   MAINTENANCE   (cont) f.  Transmission  Oil  Cooler. This task covers: a. Cleaning b. Inspection and Repair INITIAL  SETUP TOOLS EQUIPMENT   CONDITION Shop  Equipment,  Welding NSN  3740-00-357-7268 Paragraph Condition Description 2-38g Transmission oil cooler removed. MATERIALS/PARTS Clean  hydraulic  oil  (refer  to current  lubrication  order) Cleaning  solvent  P-D-680 Clean cloths STEP LOCATION ITEM ACTION REMARKS CLEANING WARNING Dry cleaning solvent (P-D-680), used to clean parts is toxic and flammable. Wear protective goggles and gloves and use only in a well ventilated area. Avoid contact with skin, eyes, and clothes and don’t breathe vapors. Do not use near open flame or exces- sive heat and don’t smoke when using it. Failure to do so could cause serious injury. If you become dizzy while using cleaning solvent,  get  fresh  air  immediately,  and  get  medical  attention.  If contact with skin or clothes is made, flush with large amounts of water. If contact with eyes is made, wash eyes with water immed- iately,  and  obtain  medical  aid  immediately. 1 Transmission oil cooler a. Clean exterior Use  cleaning  solvent  P-D-680 CAUTION Don’t use flushing compounds in following step. WARNING Wear safety glasses when drying parts with compressed air. Failure to do so could cause serious injury to eyes and possible blindness. If you hurt your eyes or if a foreign object is blown into your eyes, seek  medical  attention  immediately. b. Clean interior by back flushing with clean hydraulic oil and  compressed  air  until  all  foreign  material  removed; then steam clean interior INSPECTION AND REPAIR 2 Transmission oil cooler Inspect for broken welds and brazed joints. Repair by welding and brazing broken joints. If not feasible to repair, replace transmission  oil  cooler 3-137