TM 9-2320-209-20-3-4 FRAME 2 1. 2. 3. 4. Using phillips screwdriver, screw two screws (1) through windshield frame (2) into wiper motor (3). Tighten screws. Clip wiper blade (4) to wiper arm (5). Put wiper arm (5) on serrated shaft of wiper motor (3). Set arm so that blade clears windshield center post (6) and windshield frame (2) by turning manual control lever (7) to the right and left. Using 3/8-inch wrench, screw on and tighten cap nut (8). NOTE Follow-on Maintenance Action Required: Start engine and turn on windshield wiper control valve to check operation of wiper motor. Refer to TM 9-2320-209-10. END OF TASK 21-7