CFM56-5B包H TRAINING MANUAL
FAN ROTOR
BOOSTER
SPINNER REAR
CONE
SPINNER FRONT CONE
FAN AND BOOSTER DESIGN
CTC-063-011-01
Page 5
EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
Spinner front cone
Interference fit and single angular mounting positions are characteristics of the installation of the front and rear cone onto the fan disk.
The spinner front cone has an offset hole on its rear flange, identified by an indent mark, to ensure correct alignment for installation onto the rear cone front flange.
The rear flange has 6 mounting screw locations and 3 threaded inserts, located every 120°, for installation of jackscrews used in removal procedures.
Page 6
EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
CFM56-5B包H TRAINING MANUAL
6 MOUNTING
OFFSET HOLE SCREW LOCATIONS
MOUNTING
MARK
INDENT SCREW
3 JACKSCREW LOCATIONS
SPINNER FRONT CONE
CTC-063-012-01
Page 7
EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
Spinner rear cone
The front flange of the spinner rear cone has 6 line replaceable, crimped, self-locking nuts.
The inner rear flange has 12 mounting screw holes, for installation onto the fan disk, and there are a further 6 threaded holes for the installation of jackscrews used in rear cone removal procedures.
Both front and rear flanges have an offset hole to ensure correct installation and they are identified by indent marks.
The rear cone also has an integrated air seal that is glued to its inner rear flange.
Page 8
EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
CFM56-5B包H TRAINING MANUAL
GLUED SEAL SELF - LOCKING NUTS
12 MOUNTING SCREW HOLES
REAR CONE
CTC-063-013-01
Page 9
EFFECTIVITY
72-20-00
Dec 00
BASIC ENGINE
ALL CFM56-5B ENGINES FOR A319-A320-A321
CFMI PROPRIETARY INFORMATION
Spinner rear cone (continued)
The rear cone prevents axial disengagement of spacers used in the fan blade retention system.
It also supports a series of balancing screws that are installed on its outer diameter. There are two sets of balancing screws available and the screws in each set are identified as either P01 to P07 or, P08 to P14. The numbers, which are engraved on the screw heads, are equivalent to various weights.
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