Gas producer speed indication (NG)

TB 1-4920-443-35

AEDATS IV T64 ALIGNMENT WORKSHEET

(2) Gas producer speed indication (NG)

(Refer to page 54 step 48)

(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

(b) Input the following frequencies into the flight harness connector

1 T64 Flight Harness Connector P89, Pins (A+) and (B-).

(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%

(NG)

+/- .3%

+/- 0.1%

7hz (10%)

____________

28hz (40%)

____________

42hz (60%)

____________

56hz (80%)

____________

70hz (100%)

____________

Transducer: T45 Hardware Name: F01

No alignment requirement must verify frequencies.

(3) Over speed power section #1 T64 (Refer to page 37 step 41)

(a) Use the B. F Goodrich EPU to perform this test.

(b) Set the EPU to the second "MODE" display

(c) Cal: V=9.497 I=19.601 J2 CONN=3333 HZ

Thumbwheel

indication

Limit control

settings

indicator

+/- 3 Hz

3800

In limit

____________

90% alarm

____________

3700

90%

____________

100% alarm

____________

3333

100%

____________

Audible

____________

alarm

Note: over speed power section #2 is not connected

(4) Torque measurement system,

(Refer to page 60 step 53)

(a) Set the modulus code to match the modulus code of the torque shaft that is installed in the

dynamometer.

(b) Set the AEDATS channel 23 (QDyno) for T-64 engine

(c) Set the EPU to the first "MODE" display:

1 Display should read 512 Hz. 0 volt

2 TB 609 1 (+) 2(-) ______________ +/-20 mv

198