TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
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6-2. FRONT PROPELLER SHAFT ASSEMBLY MAINTENANCE This task covers: a. Removal c. Installation b. Inspection INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Cotter pin (Appendix G, Item 17) (Basic/A1 Series) Cotter pin (Appendix G, Item 18) (A2 Series) Manual References TM 9-2320-280-10 TM 9-2320-280-24P NOTE Propeller shaft bearing caps should be taped together to prevent loss of bearings. 1. Remove four capscrews (3) and two bearing straps (2) from front propeller shaft assembly (4) and differential pinion yoke (1). NOTE Step 2 applies to all vehicles except M1097, “A1” and “A2” series. Step 3 applies to M1097, “A1” and “A2” series. 2. Remove four capscrews (10) and two bearing straps (9) from front propeller shaft assembly (4) and transfer case output yoke (7). 3. Remove four nuts (14), washers (15), and two U-bolts (16) from front propeller shaft assembly (4) and transfer case output yoke (7). 4. Remove cotter pin (13), washer (12), and transfer case shift rod (11) from transfer case shift lever (6). Discard cotter pin (13). 5. Remove two nuts (17), washers (18), capscrews (20), washers (18), and center bearing (19) from engine mount (21). 6. Move front propeller shaft assembly (4) forward, then rearward over top of transfer case (5) and pipe (8), and remove front propeller shaft assembly (4). 1. Inspect drive shaft (23) and coupling shaft (24) for cracks and damage. Replace either (para. 6-3) if cracked or damaged. 2. Inspect grease fittings (25) and universal joints (22) for serviceability. Replace universal joints (22) (para. 6-7) or grease fittings (25) if unserviceable. 3. Inspect center bearing (19) for roughness or damage. Replace coupling shaft (24) (para. 6-3) if center bearing (19) is rough or damaged. b. Inspection a. Removal TM 9-2320-280-20-2 6-2 Change 3 1 2 3 4