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1) nnnn - Fan balance weight solution.
NOTE: If nnnn value is less or equal to 99.9 then it
____ is displayed as nn.n, if it is greater or equal to 100 then is is displayed as nnnn.
2) yyy - the Fan balance weight position in degrees. 3) x/6 - the number of speed ranges with valid data (0 to 6). 4) Fx - the flight number (0 to 5, where 0 is the last fight).
(e) From the balance solution screen push and release the NO button. This causes the BAL ENGINE 3? screen to show.
NOTE: If you are already doing Engine 3 balance the NO
____ button will cause the BAL ENGINE 4? screen to show. If you are doing Engine 4 balance the NO button will cause the main menu to show.
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////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
Accelerometer Installation on Flanges A and P
Figure 501 (Sheet 1)
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Accelerometer Installation on Flanges A and P
Figure 501 (Sheet 2)
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C67688
////////////////////////A / PW4000 SERIES /747-400 / ENGINES /MAINTENANCE MANUAL ////////////////////////
ACCELEROMETER AND LEAD ASSEMBLY AND PWA 86137 ACCELEROMETER BRACKET (FLANGE A)
ACCELEROMETER AND LEAD ASSEMBLY AND PWA 85774 ACCELEROMETER BRACKET (FLANGE P)
SHORT SPLINE ON THE COUPLING ASSEMBLY OF THE TURBINE SHAFT
N1 SPEED
TRANSDUCER
PWA 86140 HARNESS ASSEMBLY RECESS ON FRONT OF THE COUPLING ASSEMBLY OF THE
INK MARKED
INK MARK ON
FAN BLADE
THE FAN BLADE RUBSTRIP
ENGINE AS SEEN FROM FRONT
L-A5939 Trim Balance Equipment Installation Schematic
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ACCELEROMETER,
LEAD ASSEMBLY
AND PWA 86137
ACCELEROMETER
BRACKET
(FLANGE A)
SHORT SPLINE ON TURBINE SHAFT COUPLING ASSEMBLY
ACCELEROMETER, LEAD ASSEMBLY AND PWA 85774 ACCELEROMETER BRACKET (FLANGE P)
N1 SPEED
TRANSDUCER
INK MARKED
PWA 86140 INK MARK ON
FAN BLADE
HARNESS FAN BLADE
ASSEMBLY RUBSTRIP
ENGINE AS SEEN FROM FRONT
(OPTIONAL PROCEDURE)
L-A4871
Trim Balance Equipment Installation Schematic Figure 502 (Sheet 2)
C67682
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