AFCS INTERFACE TEST (Continued) TEST 10 CCDA THRUST CONTROL DRIVE TEST (NO. 1)

AFCS INTERFACE TEST (Continued) TEST 9 COLLECTIVE COCKPIT CONTROL DRIVE ACTUATOR (CCDA) SERVO LOOP OPERATION TEST (NO. 1)

AFCS INTERFACE TEST (Continued) TEST 11 DIRECTIONAL (YAW) CPT NULL OUTPUT TEST (BOTH)

TM-55-1520-240-23-9 CH-47D Heilcopter Manual
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TM 55-1520-240-23-9 11-280 AFCS INTERFACE TEST (Continued) 11-280 TEST 10 CCDA THRUST CONTROL DRIVE TEST (NO. 1) 49. Set AFCS SYSTEM SEL switch (1) to 1. 50. Press THRUST CONT BRAKE TRIGGER (26). 51. Push thrust control stick (27) full down and release. 52. Set ACTUATOR DRIVE CCDA CLUTCH switch (24) to ON. 53. Set ACTUATOR DRIVE CCDA BRAKE switch 23) to ON. Do not permit thrust control to drive full up. Damage to equipment can occur. 54. Set ACTUATOR DRIVE CCDA switch (22) to CCW. Check thrust control (27). Control shall drive up. Set switch to OFF before control contacts up stops. 55. Set ACTUATOR DRIVE CCDA switch (22) to OFF. 56. Set ACTUATOR DRIVE CCDA CLUTCH switch (24) to ON. 57. Set ACTUATOR DRIVE CCDA switch (22) to CW. Check control stick (27). Control shall drive down. 58. Set ACTUATOR DRIVE CCDA switch (22), CCDA BRAKE switch (23), and CCDA CLUTCH switch (24) to OFF. END CCDA THRUST CONTROL DRIVE TEST (NO. 1) 11-1183

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