Creating  better aviation maintenance solutions...ACES

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      Revision History
    CFE 738 Engine Balance
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Procedure Cards

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VERSION 3.00, 10/28/1996

1. 1730/1725 format.
2. Support multiple Engines/Sensors.


VERSION 3.01, 12/27/1996

1. Added "Summarize/Print All Balance Jobs" menu to view/print
Influences, Vibration reductions, etc. for all sub-models.
2. Default vibration limits (in balance) for all sub-models as
0.05 IPS
3. 1/9/97: Changed default ICFs, custom sensor sensitivity, and
added balance speed entry for each sensor.
4. 1/15/97: Added "High/Low Tooth: Enabled/Disabled" option
in "Change Global Settings" of [main menu] (default: Enabled).

VERSION 3.02á, 10/12-16/1997

1. Employed Weighted Least Squares in solution calculation.
2. Added Sensor/Tach Location definition during job setup.
3. Moved "Default/Previous/Editing" ICF to global.
4. On first run weight placement, limit to one weight, changeable in
Global settings.
5. Added back 511 cable fault detectors to sensor list. Append
w/511 on the sensor description.
6. Added "Survey with Tach".
7. Added picking balance speeds by "User Entry / Engine Suevey"
during balance job setup.
8. At first entry to main menu, set serial port baud to 9600.


VERSION 3.03, 12/04/1997

1. Allow "Survey with Tach" to use High-Low-Setting set in
Global Settings.
2. Correct Demo Banner when survey exits from survey screen
if doing survey in Demo Mode.


VERSION 3.04, 01/18/1998

1. Set engine to IDLE (not Shutdown) for Vib survey during balance.
So no "Start Engine" is necessary in the 1st run of balance.
2. Allow to resume the run correctly when press RESET at the weight
entry screen.
3. Default to NO (re-enter weight) at the "Re-enter Weight Query
Screen" at 1st run if NO weight-split is allowed at the 1st run.
4. Added a logic to ensure the later runs is not affected by the
wrong initial weight placement due to the wrong initial ICFs,
and hence to ensure the engine can be balanced properly.
5. Disable the 2nd sensor location editing when only one sensor was
selected.


VERSION 3.20, 12/12/1998

1. Fully support Year 2000 format (no versions between v3.04 & v3.20).
2. Fix possible survey loosing job.


VERSION 3.21, 03/23/1999

1. Add auto prompt & deleting Oldest Jobs with user selections when
memory is not enough.
2. New features as AE3007 V3.22.


VERSION 3.22, 07/06/1999

1. Uses Varied Band Width balance, you can setup the
band width in the "Change Global Settings" menu. In the band
list, include "Normal " band setting (Default). If you select
"Normal ", the balance is just like before (Normal band balance).

VERSION 3.23, 07/24/1999

1. Fixed possible bug in Varied Band Width balance due to the
interrupted Date-Time-Banner. Now, the balance acquisition
does NOT use the interrupted Date-Time-Banner.
2. Fixed a bug existing in the balance of "different sensors with
different rpms". Now, (1) If the two sensors have the same
user-entered rpms, then the procedure will NOT prompt rpm
chacking for the 2nd sensor. (2) If the two sensors have different
user-entered rpms, then the procedure will prompt rpm
chacking for bothe the 1st and 2nd sensor.

VERSION 3.24

General changes:
1. Change menu item "Perform Engine Survey" to "Peform Engine Vib Survey."
2. If weights entered is the recommended, default Re-Enter weights to NO.
3. Change message "...Affect Solution Much" to "Affect Solution."

VERSION 3.25, 06/27/2000
1. Sensor 6222S-20 = 20 MV/IPS
2. Sensor 6222S-50 = 50 MV/IPS
3. Sensor 6222S-100 = 100 MV/IPS
4. Sensor Falcon2000 = 13.2 MV/g

VERSION 3.26, 07/08/2000
1. Change CFE738-COM's icfs.

VERSION 3.27, 11/05/2000
1. Change two models to three models:
(1) CFE738-2P-ALU for Two piece (aluminum and titanium) spinner
(2) CFE738-1P-ALU for One piece (all aluminum) spineer
(3) CFE738-1P-COM for One piece (composite) spinner
2. The weights are set as:
(1) The current CFE738-AL's weights are for
CFE738-2P-ALU (Two piece (aluminum and titanium) spinner).
(2) The current CFE738-COM's weights are for
CFE738-1P-ALU (One piece (all aluminum) spineer), and
CFE738-1P-COM (One piece (composite) spinner).

CFE738 VERSION 3.28, 04/12/2001
1. Change ICFs for CFE738-2P-ALU (old CFE738-AL) as:
Sens 1: 60 @ 215 deg, Sens 2: 60 @ 70 deg.


CFE738 VERSION 3.29, 07/11/2001
1. Fix a bug in class-weight splitting for CFE738-1P-COM model.

CFE738 VERSION 3.30, 11/20/2002
 1. Add the 4382/510-2 sensor selection. This is the same sensor as in the TFE731 procedures.


 
 

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