TABLE OF CONTENTS APU HYDRAULIC SYSTEM TROUBLESHOOTING

APU START AND MAIN FUEL VALVES ELECTRICAL TESTS

TM-55-1520-240-T-3 CH-47D Heilcopter Manual
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TM 55-1520-240-T PARAGRAPH 15-4 TABLE OF CONTENTS APU HYDRAULIC SYSTEM TROUBLESHOOTING PARAGRAPH DESCRIPTION FUNCTION PAGE PARAGRAPH DESCRIPTION FUNCTION PAGE 15-4 APU HYDRAULIC SYSTEM 15-4.1 APU HYDRAULIC SYSTEM COMPONENTS 15-4.2 OVERALL APU HYDRAULIC SYSTEM BLOCK DIAGRAM 15-4.3 MAJOR INTERCONNECTING APU HYDRAULIC SYSTEM SCHEMATIC 15-4.4 CHARGING ACCUMULATOR FLOW DIAGRAM 15-4.5 APU HYDRAULIC START MOTOR FLOW DIAGRAM 15-65 15-4.9 DRAWING 15-68 15-4.10 DRAWING 15-69 15-4.11 DRAWING 15-70 15-4.12 DRAWING 15-72 15-4.13 DRAWING 15-73 15-4.6 APU HYDRAULIC PUMP FLOW DIAGRAM DRAWING 15-74 15-4.7 APU HYDRAULIC STARTING SYSTEM VISUAL TASK 15-75 CHECK 15-4.8 APU HYDRAULIC STARTING SYSTEM TASK 15-76 OPERATIONAL CHECK APU START ACCUMULATOR GAGE DOES NOT TASK 15-78 INDICATE AT LEAST 2850 PSI APU DOES NOT MOTOR TASK 15-80 APU MOTORS BUT DOES NOT START, ESU TASK 15-82 APU PUMP FAULT LIGHT IS ON TASK 15-84 HYDRAULIC HANDPUMP SCHEMATIC DRAWING 15-86 Change 8 15-67

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