TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 3 Download
Page 556 of 1170
11-198. BLOWER MOTOR AND HOUSING MAINTENANCE This task covers: a. Opening Blower Housing d. Blower Housing Installation b. Closing Blower Housing e. Blower Motor Removal c. Blower Housing Removal f. Blower Motor Installation INITIAL SETUP: Applicable Models M997, M997A1, M997A2 Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Materials/Parts Six lockwashers (Appendix G, Item 159) Plain-assembled nut (Appendix G, Item 201) Plain-assembled nut (Appendix G, Item 204) Manual References TM 9-2320-280-24P Equipment Condition • Rear cover panel removed (para. 11-188). • Battery ground cable disconnected (para. 4-73). 1. Remove plain-assembled nut (3) and capscrew (11) from blower housing (2) and body (13). Discard plain-assembled nut (3). 2. Release two latches (14) from blower housing (2) and evaporator duct (1) and swing blower housing (2) open. 1. Swing blower housing (2) closed and secure to evaporator duct (1) with two latches (14). 2. Install blower housing (2) on body (13) with capscrew (11) and plain-assembled nut (3). 1. Perform step a. NOTE Prior to removal, tag leads for installation. 2. Disconnect four control box leads (6) from blower motor leads (5). 3. Remove plain-assembled nut (12.1), capscrew (10), and clamp (7) from blower housing (2). Discard plain-assembled nut (12.1). 4. Remove two capscrews (19) and lockwashers (18) from plate (20) and evaporator duct (1). Discard lockwashers (18). 5. Remove two screws (21), lockwashers (15), and plate (20) from blower housing (2) and evaporator duct (1). Discard lockwashers (15). 6. Remove four capscrews (16), washers (17), and blower housing (2) from evaporator duct (1). 1. Install blower housing (2) on evaporator duct (1) with four lockwashers (17) and capscrews (16). 2. Install plate (20) on blower housing (2) and evaporator duct (1) with two lockwashers (15) and screws (21). 3. Install plate (20) on evaporator duct (1) with two lockwashers (18) and capscrews (19). 4. Install clamp (7) and control box harness (12) on blower housing (2) with capscrew (10) and plain- assembled nut (12.1). d. Blower Housing Installation c. Blower Housing Removal b. Closing Blower Housing a. Opening Blower Housing TM 9-2320-280-20-3 11-292 Change 2