TM 9-2320-209-20-3-1 1. 2. 3. 4. Using 9/16-inch wrench, unscrew and take off nut and lockwasher (1). Using 9/16-inch wrench, loosen four nuts (2) on clamp bolts (3). WARNING Be very careful not to short positive and negative battery posts against retainer (4). This could cause retainer to melt and battery to explode. to personnel. Push four clamp bolts (3) out of slots battery retainer. Lift out two batteries (5). END OF TASK Explosion could cause injury in battery retainer (4). Lift off 7-21S1