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BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
77-31-00-130
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - BALANCE PG 1 - TRAINING INFORMATION POINT
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - BALANCE PG 1 - TRAINING INFORMATION POINT
EFFECTIVITY
GUN 001-099, 101-110, 115, 201-999 77-31-00
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D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
77-31-00-130
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AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - BALANCE PG 1 - TRAINING INFORMATION POINT
77-31-00
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D633A101-GUN Jun 10/2006
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CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
General
Push the YES switch, from the BAL. FOR ENGINE X display to
go to the IMBAL DATA READ? option. This option lets you see
fan and low pressure turbine (LPT) vibration data for the last six
flights (cycles) of the engine. The last flight is FLIGHT 0. The
oldest flight is FLIGHT 5. Push the YES switch to see the data for
the flight. NO IMBAL DATA shows if the non-volatile memory
does not have any flight data.
The AVM signal conditioner makes a record of each engine
highest vibration in six different N1 speed ranges. The N1 speed
must be maintained for 5 seconds within the range for the AVM
signal conditioner to record the vibration.
XX.X is the N1 speed at the highest vibration during the time the
engine operated in the specific N1 range. N.NN is the fan
displacement in mils (double amplitude). YYY is the phase
angle (degrees) for the fan. M.MM is the LPT displacement in
mils (double amplitude). ZZZ is the phase angle (degrees) for
the LPT.
GUN 111-113
Use the up arrow switch and the down arrow switch to see the
data for each range of N1. You push the NO switch to go to the
HOLE CONFIG? display.
GUN 001-099, 101-110, 115, 201-999
Use the up arrow switch and the down arrow switch to see the
data for each range of N1. Push the NO switch to go to the
WEIGHTS CONFIG? display.
GUN 001-099, 101-113, 115, 201-999
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - BALANCE PG 2 - TRAINING INFORMATION POINT
EFFECTIVITY
GUN 001-099, 101-113, 115, 201-999 77-31-00
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D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
77-31-00-132
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - BALANCE PG 2 - TRAINING INFORMATION POINT
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - BALANCE PG 2 - TRAINING INFORMATION POINT
EFFECTIVITY
GUN 111-113 77-31-00
Page 49
D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
77-31-00-132
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - BALANCE PG 2 - TRAINING INFORMATION POINT
AVM SYSTEM - AVM SIGNAL CONDITIONER BITE - BALANCE PG 2 - TRAINING INFORMATION POINT
EFFECTIVITY
GUN 001-099, 101-110, 115, 201-999 77-31-00
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D633A101-GUN Jun 10/2006
BOEING PROPRIETARY - Copyright#- Unpublished Work - See title page for details.
CFM56 ENGINES (CFM56-7) 737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL
77-31-00-132
General
Push the YES switch, from the HOLE CONFIG.? display to see or
change (modify) balance weight data in the AVM signal
conditioner memory. It is very important that you make sure
the fan balance weight data (POX and location) in the AVM
signal conditioner memory match the actual balance screws
and positions on the engine. The AVM balance solution will not
be accurate if the balance weight data does not agree.
GUN 001-099, 101-110, 115, 201-999
Push the YES switch, from the WEIGHTS CONFIG.? display to
see or change (modify) balance weight data in the AVM signal
conditioner memory. It is very important that you make sure the
fan balance weight data (XXXX and location) in the AVM signal
conditioner memory match the actual balance screws and
positions on the engine. The AVM balance solution will not be
accurate if the balance weight data does not agree.
GUN 111-113
Push the YES switch from the READ CONFIG DATA? menu to
see engine locations that the AVM signal conditioner believes
has balance screws with a classification that are different than
P07. The P07 balance screw is the initial balance screw.
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