TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
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3-2. ENGINE OIL DIPSTICK TUBE REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Special Tools Hex-head driver, 8 mm (Appendix B, Item 156) Materials/Parts O-ring (Appendix G, Item 209) Plain-assembled nut (Appendix G, Item 201) Sealant (Appendix C, Item 38) Manual References TM 9-2320-280-10 TM 9-2320-280-24P Equipment Condition Hood raised and secured (TM 9-2320-280-10). 1. Remove oil dipstick (5) from oil dipstick tube (4). 2. Remove plain-assembled nut (3) and capscrew (13) from harness clamp (2) and upper dipstick tube bracket (6). Discard plain-assembled nut (3). 3. Using hex-head driver, remove socket-head screw (8) and washer (7) from lower dipstick tube bracket (12) and exhaust manifold (11). 4. Remove two assembled-washer screws (1) from upper dipstick tube bracket (6) and fuel line bracket (14). 5. Remove oil dipstick tube (4) from engine oil pan (10). Remove and discard O-ring (9). 1. Apply RTV sealant to O-ring (9) and install O-ring (9) on oil dipstick tube (4). 2. Install oil dipstick tube (4) in engine oil pan (10). 3. Using hex-head driver, secure lower dipstick tube bracket (12) to exhaust manifold (11) with washer (7) and socket-head screw (8). Tighten socket-head screw (8) to 25-33 lb-ft (34-45 N•m). 4. Secure upper dipstick tube bracket (6) to fuel line bracket (14) with two assembled-washer screws (1). Tighten assembled-washer screws (1) to 3–4 lb-ft (4-5 N•m). 5. Secure harness clamp (2) to upper dipstick tube bracket (6) with capscrew (13) and plain-assembled nut (3). 6. Install oil dipstick (5) into oil dipstick tube (4). b. Installation a. Removal TM 9-2320-280-20-2 3-2 Change 3