Inlet Guide Vane Position (T64)

TB 1-4920-443-35

AEDATS IV T64 ALIGNMENT WORKSHEET

(4) Inlet Guide Vane Position (T64) (Refer to pages 81 step 62)

(a) Input the following voltages into connector T53 IGV pins A (+) and B (-).

(b) Connector T53 IGV at Engine

Vertical Scale

Input Voltage

Percent

AEDATS 4

Vertical Scale

Bottom row 4

Reading

(VGI)

+/- 1 deg

+/-.5 deg

0 volts

-10%

____________

2 volts

15%

____________

4 volts

40%

____________

6 volts

65%

____________

8 volts

90%

____________

Transducer: T84 Hardware Name: HL37

b. Speed measurement system

(Refer to page 54 step 50) Tach. Gen

(1) Power turbine speed (PT) speed indicator

(a) Set calculating counter controls as follows: (Channel 2)

1 DEC

6

2 C

11030

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 T64 Flight Harness Connector P70, pins (1+) and 2(-).

NOTE

Ground E on TB810 term. #17 if engine is not mounted (will not read) speeds.

(c) Set the tachometer tester controls to the following:

1 Motor direction-stop,

2 Set rpm-10%,

3 Power on

4 Set the motor direction switch to forward

Tachometer

Calculating

AEDATS 4

Gauge Analog

Gauge Digital

tester

counter

+/- .3%

(NF)

+/- .3%

+/- 0.1%

7hz (10%)

____________

28hz (40%)

____________

42hz (60%)

____________

56hz (80%)

____________

70hz (100%)

____________

Transducer: T52 Hardware Name: F04

No alignment requirement must verify frequencies.

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