TM 9-2320-209-20-3-4 FRAME 3 1. Using screwdriver, unscrew and loosen clamp (1). Take off outlet hose (2) from battery box heating pad connector (3). Take off clamp. 2. Pull outlet hose (2) from over frame rail (4) to under side of truck. Drain coolant from hose. GO TO FRAME 4 23-39