TM 10-6640-238-13 4-11 Table 4-2  Symptom Index - CONT Troubleshooting Table Item Number Title 23. Gas alarm system inoperative or operates improperly. 24. Gum bath inoperative, power available. 25. High pressure boiler inoperative, power available. 26. Low pressure boiler inoperative, power available. 27. Reid Vapor Pressure (RVP) bath inoperative, power available. 28. Manometer inoperative, no physical damage apparent. 29. Kinematic viscosity test bath inoperative, power available. 30. Centrifuge inoperative, power available. 31. Distillation test apparatus inoperative, power available. 32. Freezer fails to produce ice cubes, power available. 33. Oxygen stability bath inoperative, power available. 34. Laboratory oven inoperative, power available. 35. Burnout furnace inoperative, power available. 36. Refrigerator inoperative, power available. 37. Jet Fuel Thermal Oxidation Tester (JFTOT) inoperative, power available.