TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
Page 139 of 1170
10-70. WINDSHIELD WIPER BLADE AND ARM MAINTENANCE Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Spring (Appendix G, Item 299.1) Manual References TM 9-2320-280-10 TM 9-2320-280-24P This task covers: a. Removal c. Installation b. Repair (Optional) INITIAL SETUP: NOTE Ensure windshield wiper motor switch is in OFF position. Note position of wiper arm for installation. NOTE Perform only if wiper blade and arm assembly is to be replaced. 1. Remove screw (1), nut (10), and blade assembly (8) from wiper arm (2). 2. Lift wiper arm (2) away from windshield (9). 3. Lift up latch (3) at base of wiper arm (2) and remove wiper arm (2) from splined shaft (4). NOTE If spring inside wiper arm looses its tension, it can be replaced with spring as an alternate to replacing the wiper arm. 1. Remove wiper arm (2) and blade assembly (8). See task a. 2. Remove spring (7) from wiper arm (2). Discard spring (7). 3. Install spring (7) in second hole (6) of wiper arm tabs (5). 4. Install wiper arm (2) and blade assembly (8). See task c. NOTE • Perform only if wiper blade and arm assembly was removed. • With motor switched OFF (parked position), mount wiper arm approximately 60° to vertical centerline, so that a sweep of approximately 120° will be achieved in operation. 1. Ensure wiper arm latch (3) is unlocked. 2. Install wiper arm (2) on splined shaft (4). 3. Install blade assembly (8) on wiper arm (2) with screw (1) and nut (10). c. Installation b. Repair (Optional) a. Removal TM 9-2320-280-20-3 10-116 Change 2