ENGINE PERFORMANCE CHECK OPERATIONAL CHECK (Continued)

ENGINE PERFORMANCE CHECK OPERATIONAL CHECK (Continued) - TM-55-1520-240-T-1_226

4-1.2 NO. 1 ENG HIGH PTIT READING DURING START OR HOT START

TM-55-1520-240-T-1 CH-47D Heilcopter Manual
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TM 55-1520-240-T 4-1.1 ENGINE PERFORMANCE CHECK OPERATIONAL CHECK (Continued) 4-1.1 TASK RESULT If either NO. 1 or NO. 2 engine oil temperature indicator (5 and 10) readings is high, go to Task 4-1.9. If either pilot’s or copilot’s rotor tachometer (6 and 12) does not indicate between 98 and 102 percent rpm, go to Task 8-15.3. If either NO. 1 or No. 2 engine emergency power indicator (13 and 14) is on, go to Task 8-5.3. 7. Have pilot set ENG anti-ice switch (15) to If NO. 1 engine anti-icing valve does not operate, ON. go to Task 4-2.4. If NO. 2 engine anti-icing valve does not operate, go to Task 4-2.4. 8. Have pilot set ENG anti-ice switch (15) to OFF. 9. Have pilot establish stable hover. Check rotor Rotor rpm shall not change more than +0 to -2 rpm indicator (6 and 12) and torque indicator percent. Torque indication shall not split more (16 and 17) indications. than 6 percent. If either indication does, go to Task 4-1.10. FOLLOW-ON MAINTENANCE: TM 55-1520-240-23: Battery Disconnected Electrical Power Off Hydraulic Power Off 4-4 Change 2

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