TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
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CAUTION Prior to towing vehicle, parking brake rotor must be removed. NOTE On vehicles with serial numbers USBL Eff. 44825 and above, the propeller shaft is attached to the differential yoke instead of the parking brake rotor. Lockwashers and U-bolts are not used. 1. Chock wheels and release parking brake (TM 9-2320-280-10). 2. Remove four nuts (1), lockwashers (2), and two U-bolts (4) from rear propeller shaft (5) and transfer case output yoke (3). Discard lockwashers (2). 3. Remove four capscrews (8), lockwashers (7), and rear propeller shaft (5) from parking brake rotor (6). Discard lockwashers (7). 1. Inspect propeller shaft (5) for cracks and dents. Replace if cracked or dented. 2. Inspect grease fittings and universal joints for serviceability. Replace universal joints (para. 6-7) or grease fittings if unserviceable. 1. Install rear propeller shaft (5) on parking brake rotor (6) with four lockwashers (7) and cap- screws (8). Tighten capscrews (8) to 60 lb-ft (81 N•m). 2. Install rear propeller shaft (5) on transfer case output yoke (3) with two U-bolts (4), four lock- washers (2), and nuts (1). Tighten nuts (1) to 21 lb-ft (28 N•m). 3. Apply parking brake (TM 9-2320-280-10) and remove wheel chocks. c. Installation b. Inspection a. Removal 6-4. REAR PROPELLER SHAFT MAINTENANCE Materials/Parts Four lockwashers (Appendix G, Item 134) Four lockwashers (Appendix G, Item 170) Manual References TM 9-2320-280-10 TM 9-2320-280-24P TM 9-2320-280-20-2 6-8 Change 3 This task covers: a. Removal c. Installation b. Inspection INITIAL SETUP: Applicable Models All except M1097, “A1” and “A2” series Tools General mechanic’s tool kit: automotive (Appendix B, Item 1)