TB 1-4920-443-35
AEDATS II T53 ALIGNMENT WORKSHEET
b. Speed measurement system, (Refer to page 54 step 48) Tach. Gen
(1) Power turbine speed (PT) speed indicator
(a) Set calculating counter controls as follows: (Channel 2)
1 DEC
5
2 C
14286
3 10n
0
4 Auto
depressed
5 x10
released
6 Sample rate (fast)
1
7 Test
released
(b) Input the following frequencies into the flight harness or engine harness connector
1 T55 Flight Harness pins D and E
2 T53 Flight Harness pins E and F
T53 Engine harness pins A and B
3 T63 Flight Harness pins A and B
NOTE
Ground E onTB810 term. #17, if engine is not mounted (will not read) speeds.
1 Motor direction-stop,
2 Set rpm-10%,
3 Power on
4 Set the motor direction switch to forward
Calculating
AEDATS 2
Gauge Analog
Gauge Digital
tester
counter
+/- .3%
+/- .3%
(RPM 3)
+/- .3%
+/- .01hz
7hz (10%)
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____________
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28hz (40%)
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42hz (60%)
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56hz (80%)
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70hz (100%)
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(2) Gas producer speed indication (GP),
(Refer to page 56 step 49)
(a) Set the calculating counter controls as follows: (Channel 1)
1 DEC
5
2 C
14286
3 10n
0
4 Auto
depressed
5 x10
released
6 Sample rate (fast)
1
7 Test
released
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