TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
Page 707 of 1205
TM 9-2320-387-24-l 1 3-80. FAN DRIVE AND FAN BLADE MAINTENANCE This task covers: a. Removal b. Inspection c. Installation INITIAL SETUP: Tools hlanual References General mechanic’s tool kit: TM 9-2320-387-24P automotive (Appendix B, Item 1) Equipment Condition Special Tools Radiator and shroud removed (optional) Hex-head driver, 8 mm (Appendix B, Item 145) (para. 3-62). hlaterialearts nlaintenance Level Four lockwashers (Appendix G, Item 206) Unit Sealing compound (Appendix C, Item 62) p7iKq NOTE l Mark position of fan blade for installation. l It may be necessary to apply compressed air to clutch adapter to disengage fan drive clutch, allowing access to socket-head screws. 1. Using hex-head driver, remove four socket-head screws (1) and fan drive assembly (31 from water pump pulley (2). 2. Remove four nuts (51, lockwashers (61, and fan blade (7) from fan drive (8). Discard lockwashers (6). Inspect clutch adapter (4) and fan blade (7) for damaged threads, cracks, bent blades, or breaks. Replace if defective. c. Installation 1. Align fan blade (7) on fan drive (8) and install four lockwashers (6) and nuts (5). Tighten nuts to 26 lb-ft (35 N-m). 2. Apply sealing compound to four socket-head screws (1) and install fan drive assembly (3) on water pump pulley (2) with socket-head screws (1). Tighten socket-head screws (1) to 45 lb-ft (61 Nom). 3-140