Over speed power section #1, T-53

TB 1-4920-443-35

AEDATS II T53 ALIGNMENT WORKSHEET

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

1 T55 Flight Harness pins G and H.

2 T53 Flight Harness pins G and H

3 T63 Flight Harness 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 2

Gauge Analog

Gauge Digital

tester

counter

+/- .3%

(RPM 1)

+/- .3%

+/- .01hz

7hz (10%)

____________

28hz (40%)

____________

42hz (60%)

____________

56hz (80%)

____________

70hz (100%)

____________

(3) Over speed power section #1, T-53

(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

+/- .3Hz

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 61 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 (Torq) for T-53/T-55/T63 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

3 Enter first point in AEDATS 0.

122