TM-9-2320-280-20 HMMWV Technical Manual Unit Maintenance Volume 2 Download
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3-38. GLOW PLUG REPLACEMENT This task covers: a. Removal b. Installation a. Removal 1. Disconnect electrical lead 575 (3) from glow plug (2). NOTE • If glow plug is damaged or broken, notify unit commander. Damaged or broken glow plugs are removed at DS maintenance. • To help remove swollen glow plugs, fabricate tool as shown in appendix D, figure 63.1. • Other tools can be used to aid in glow plug removal. This procedure pertains to tool in appendix D, figure 63.1. 2. Insert forked end of glow plug tool behind hex-head of glow plug (2) and remove glow plug (2) from cylinder head (1). INITIAL SETUP: Tools General mechanic’s tool kit: automotive (Appendix B, Item 1) Special Tools Socket, 3/8 in. (Appendix B, Item 155) Manual References TM 9-2320-280-10 TM 9-2320-280-24P Equipment Condition • Battery ground cable disconnected (para. 4-73). • Hood raised and secured (TM 9-2320-280-10). b. Installation NOTE HMMWV glow plugs have bullet-shaped tips, not flat tips. 1. Install glow plug (2) in cylinder head (1). Tighten-glow plug (2) to 8-12 lb-ft (11-16 N • m). 2. Connect electrical lead 575 (3) to glow plug (2). TM 9-2320-280-20-2 3-74 Change 2 FOLLOW-ON TASKS: • Connect battery ground cable (para. 4-73). • Lower and secure hood (TM 9-2320-280-10).