TM 10-3930-659-20 16-7. REAR WINDOW WIPER ARM AND BLADE MAINTENANCE (Con't). c. INSTALLATION 1. Install crankpin (26) on pivot assembly (16) with nut (25). 2. Install pivot assembly (16) on cab (8) with two washers (15) and screws (14). 3. Install gasket (24) and plate (23) on cab (8) with two screws (22). 4. Install new gasket (17), washer (18), nut (19), cap (20), and nut (21) on pivot assembly (16). 5. Install window wiper arm (4) on cab (8) with new lockwasher (13) and two nuts (11 and 12). 6. Install plate (9) on cab (8) with retainer (10). TA706987 16-25