REMOVAL CAUTION Keep all third clutch parts together. Intermixing third clutch parts with any other clutch parts will cause transmission damage. Remove snapring (1), backplate (2), three internal-splined clutch plates (3), and external-tanged clutch plates (4) from transmission (5). CLEANING AND INSPECTION WARNING Volatile mineral spirits burn easily and fumes can explode. Do not smoke or allow open flames nearby when using volatile mineral spirits. Failure to do so may cause serious injury or death to personnel. 1. Clean backplate (2) thoroughly with mineral spirits. 2. Measure thickness of internal-splined clutch plates (3). Replace internal-splined clutch plate(s) (3) if thickness is less than 0.090-in. (2.29 mm). 3. Place external-tanged clutch plates (4) on clean, level surface. Measure distance from inside diameter to level surface. Replace external-tanged clutch plate(s) (4) if distance is more than 0.005-in. (0.13 mm). 4. Inspect backplate (2) for wear or scoring. Replace backplate (2) if thickness is less than 0.416 in. (10.57 mm). INSTALLATION 1. Beginning with external-tanged clutch plate (4), install three external-tanged clutch plates (4) and internal-splined clutch plates (3) on transmission (5). 2. Install backplate (2) on transmission (5) with snapring (1). 3. Ensure gauge of snapring (1) is at the 12 o’clock position at the top of transmission (5). 4. Check third clutch maintenance. 5. Using clutch pack clearance gauge, check the clearance between snapring (1) and backplate (2). Small end of clutch pack clearance gauge should fit in clearance. If clearance is excessive, replace clutch plates 3 and 4. If clearance is insufficient, replace with thinner backplate (2). 6. Install fourth clutch (WP 0376 00). 0377 00-2 TM 9-2320-386-24-1-2 0377 00 THIRD CLUTCH MAINTENANCE (Contd)