TM 55-1520-240-23-9
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BENCH TEST AFCS COMPUTER (AVIM)
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INITIAL SETUP
Applicable Configurations:
All
Tools:
Aircraft Electrical Tool Kit, NSN 4920-00-718-6480
Simulator, Aircraft Displacement Rate Table (T41)
Tester Pitot and Static Systems, NSN
4920-00-718-6480
AFCS Bench Test Set (T52)
Hose (APP E-36)
Hose (APP E-37)
Materials:
None
Personnel Required:
Avionic Navigation and Flight Control Equipment
Repairer
Inspector
References:
TM 55-1520-240-T
TM 55-4920-430-13
TM 55-4920-378-14&P
Appendix E
Equipment Condition:
Off Helicopter Task
AFCS Bench Test Set 145G0008-1 Prepared For Use
(TM 55-4920-430-13)
General Safety Instructions:
High voltage is used in this equipment.
Observe safety precautions;
otherwise, personal injury or death
can occur.
Do not move computer for 5 minutes
after removal of power; otherwise,
damage to yaw gyro can occur.
NOTE
The following tests are included:
TEST
1.
Continuity Test
2.
Power Supply Test
3.
Logic Test
4.
Pitch Axis Test
5.
Roll Axis Test
6.
Yaw Axis Test
7.
DASH Test
8.
Longitudinal Cyclic Trim (LCT) Test
9.
Collective Control Driver Actuator (CCDA) Test
10. Yaw Rate Test
11. Normal Acceleration Test
12. Pressure Transducers Test
13. Bite Test
NOTE
Allow 5 minutes warm up of AFCS
unit before any test segments are run.
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