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TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download

Page 713 of 1205

3-82. TENSIONER, IDLER PULLEYS, AND MOUNTING HARDWARE REPLACEMENT This task covers: a. Removal b. Installation a. Removal 1. Remove capscrew (12) and tensioner (11) from mounting bracket (8). 2. Remove two nuts (6), lockwashers (5), washers (4), capscrews (1), washers (2), supports (3.1), idler pulleys (3), and dust covers (2.1) from mounting bracket (8). Discard lockwashers (5). NOTE • On M1114 vehicles equipped with A/C, the compressor pulley is in place of the lower idler pulley. • Perform step 3 for M1113 models only. 3. Remove nut (20), lockwasher (19), washer (18), support (17), screw (13), washer (14), dust cover (15), and lower idler pulley (16) from mounting bracket (8). Discard lockwasher (19). 4. Remove two capscrews (10) and lockwashers (9) from water pump (7). Discard lockwashers (7). 5. Remove screw (7.1), collar washer (6.1), and mounting bracket (8) from engine (6.2). INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Two lockwashers (Appendix G, Item 239) Three lockwashers (Appendix G, Item 240) Manual References TM 9-2320-387-24P Equipment Condition • Fan drive and fan blade removed (para. 3-80). • Serpentine drivebelt removed (para. 3-81). Maintenance Level Unit b. Installation 1. Install mounting bracket (8) on engine (6.2) with collar washer (6.1) and screw (7.1). 2. Install lockwashers (9) and two capscrews (10) on water pump (7). 3. Install two idler pulleys (3) and dust covers (2.1) on mounting bracket (8) with two supports (3.1), washers (2), capscrews (1), washers (4), lockwashers (5), and nuts (6). NOTE • On M1114 vehicles equipped with A/C, the compressor pulley is in place of the lower idler pulley. • Perform step 4 for M1113 models only. 4. Install idler pulley (16) and support (17) on mounting bracket (8) with dustcover (15), washer (14), screw (13), washer (18), lockwasher (19), and nut (20). 5. Install tensioner (11) on mounting bracket (8) with capscrew (12). TM 9-2320-387-24-1 3-144 Change 1