TM 9-2350-287-20-12-19. TROUBLESHOOTING CHART (continued).c. ENGINE - COOLANT SYSTEM.(1) ENGINE OVERHEATS.Initial Setup:Tools/Test Equipment:l General Mechanic’s tool kit (Item 24,Appendix I)Equipment Conditions:l Air intake grill opened (refer toTM 9-2350-287-10).l Protective fan screen installed (para 2-8).WARNINGWhen engine is hot, remove radiatorcap slowly to relieve pressure.Failure to follow this procedure mayresult in severe injury.To avoid burns, ensure engine andcoolant have cooled beforeremoving components. Failure tocomply may result in severe injury.A protective fan screen must beinstalled prior to doing maintenancein the engine compartment whenthe engine is running or engine is inground hop mode. Contact withrotating fan can cause injury.A. 1. Remove radiator cap and start engine(refer to TM 9-2350-287-10).2. After engine has idled for 3-5 minutes,look inside radiator to see if coolant is circu-lating.Does coolant fluid start to circulate?Notify Direct Support maintenance.B. Check for bulging, collapsed, or leaking cool-ant hoses or tubes.Are there restrictions or collapsed hoses and tubes?Continued to next page2-50
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