![Cessna 172 Skyhawk SERIES Скачать руководство пользователя страница 164](http://html.mh-extra.com/html/cessna/172-skyhawk-series/172-skyhawk-series_maintenance-manual_2584463164.webp)
CESSNA AIRCRAFT COMPANY
SINGLE ENGINE
STRUCTURAL REPAIR MANUAL
DYNAFOCAL-TYPE ENGINE MOUNT REPAIRS
1.
General
A.
The engine mount is fabricated from 4130 chrome-molybdenum steel tubing. The mount attaches to
the
fi
rewall at four points and to the engine using rubber isolation mounts at four points.
NOTE:
Repair by gas welding is acceptable.
2.
Engine Mount Repairs
A.
The following procedures are to be used when making repairs to the engine mount. Refer to Figure
801.
(1)
All welding on the engine mounts should be of the highest quality, since the tendency of vibration
will accentuate any minor defect present and cause fatigue cracks. Engine mount members
are preferably repaired by using larger diameter replacement tube welds. However, reinforced
30-degree scarf welds in place of the
fi
shmouth welds are considered satisfactory for engine
mount repair work.
(2)
Minor damage, such as a crack adjacent to an engine attaching lug, may be repaired by
rewelding the tube and extending a gusset past the damaged area. Extensively damaged parts
must be replaced.
(3)
Engine mounting lugs and engine mount-to-fuselage attach
fi
ttings should be replaced, not
repaired.
(4)
For information on damage beyond the scope of these repairs, consult Cessna Propeller
Aircraft Product Support, P.O. Box 7706, Wichita, KS 67277 USA, Telephone (316) 517-5800
or Facsimile (316) 942-9006.
71-20-00
Page 801
© Cessna Aircraft Company
Jun 1/2005
Содержание 172 Skyhawk SERIES
Страница 11: ...CHAPTER STANDARD PRACTICES STRUCTURES ...
Страница 68: ...CHAPTER 52 DOORS ...
Страница 74: ...CHAPTER 53 FUSELAGE ...
Страница 97: ...CHAPTER 55 STABILIZERS ...
Страница 106: ...CHAPTER 56 WINDOWS ...
Страница 115: ...CHAPTER 57 WINGS ...
Страница 158: ...CHAPTER 71 POWER PLANT ...