TM-9-2320-387-24 HMMWV Direct Support & General Support Maintenance Manual Volume 1 Download
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TM 9-2320-387-24-l  4-3 1. COLD-ADVANCESWITCH REPLACEMENT  This task covers:  a. Removal  b. Installation  INITIAL SETUP:  Tools  General mechanic’s tool kit:  automotive (Appendix B, Item 1)  hlaterialflarts  Equipment Condition  l Battery ground cables disconnected (para. 4-68).  l Engine coolant drained as necessary (para. 3-61).  l Engine access cover removed (para. 10-22).  Sealing compound (Appendix C, Item 61)  nraintenance Level  Unit  1Ianual References  TM 9-2320-387-24P  NOTE  l The cold-advance switch is located in the right cylinder head  water jacket at the rear of the cylinder head just above the  exhaust manifold.  l Prior to removal, tag leads for installation.  L a. Removal 1  1. Disconnect leads 569G (1) and 569B (3) from engine harness (2).  2. Remove cold-advance switch (5) from engine (4).  /YZZZZJ  1. Apply sealing compound to threads of cold-advance switch (5).  2. Install cold-advance switch (5) on engine (4).  3. Connect leads 569G (1) and 569B (3) to engine harness (2).  FOLLOW-ON TASK!? l Connect battery ground cables (para. 4-68).  .  Fill cooling system (para. 3-61).  .  Install engine access cover (para. 10-22).  4-55