TM-9-2320-280-34 HMMWV Direct Support & General Support Maintenance Manual Download
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TM 9-2320-280-34 3-12. RIGHT ROCKER ARM COVER MAINTENANCE This task covers: a. Removal c. Installation b. Repair INITIAL SETUP: Tools Equipment Condition General mechanic's tool kit: Engine access cover removed (TM 9-2320-280-20). automotive (Appendix G, Item 1) Fuel injection lines removed (para. 4-4). Fuel injection lines bracket removed Materials/Parts (TM 9-2320-280-20). RTV sealant (Appendix B, Item 43) CDR valve bracket removed (TM 9-2320-280-20). Valve cover gasket (Appendix E, Item 37) Heater outlet/inlet piping removed (TM 9-2320-280-20). Manual References TM 9-2320-280-20 Maintenance Level TM 9-2815-237-34 Direct support TM 9-2815-237-34P a. Removal NOTE In some cases, flanged head fasteners may be present instead of standard fasteners and washers. In all cases, washers should be used when replacing a flanged head fastener with a standard fastener. 1. Remove capscrew (6) and transmission oil dipstick tube (7) from cylinder head (5). 2. Remove a combination of two capscrews (3), six studs (2), four washers (1), and rocker arm cover (4) from cylinder head (5). b. Repair For rocker arm cover repair procedures, refer to TM 9-2815-237-34. c. Installation NOTE When applying RTV sealant, keep sealant out of capscrew holes. During installation, RTV sealant or new gasket is approved. If applying RTV sealant, perform step 1. If installing new gasket, RTV sealant may be applied with the gasket, but is not required. 1. Apply a .06 in. (1.5 mm) bead of RTV sealant around rocker arm cover (4) sealing surface. 2. Install rocker arm cover (4) on cylinder head (5) with eight washers (1), two capscrews (3), and six studs (2) following assembly diagram. 3. Tighten capscrews (3) and studs (2) to 13-25 lb-ft (18-34 N m). 4. Install transmission oil dipstick tube (7) on cylinder head (5) with capscrew (6). Tighten capscrew (6) to 25-37 lb-ft (34-50 N m). 3-26