TM 9-2320-209-20-3-4 FRAME 4 1. Turn two shutoff cocks (1) to left to let coolant flow. NOTE Yellow-on Maintenance Action Required: 1. Put batteries in battery box. Refer to Part 1, para 7-56. 2. Refill cooling system. Refer to Part 1, para 6-10. 3. Close hood and right side panel. Refer to TM 9-2320-209-10. END OF TASK 23-72