REPAIR INSTRUCTION ASTIR CS
Rev. 9 28. Nov. 2005
11
Repair of Metal Fittings
a) Steel
Fittings
Repair of steel fittings made of should only be completed after consultation of the
manufacturer. Welded steel fitting (push rods) made of 1.7734.4 BZW 1.0308.1 (St. 35.4).
Welding only to be carried out with WIG Welding method and with welding material 1.7734
2 (for 1.7734.4) and 1.7324.0 (for 1.0308.0 or combination of 1.7734.4 and 10308.1)
b) Aluminium
Castings
Repair of aluminium castings 3.2374.6 cannot be carried out. Fractured or bent aluminium
castings must be replaced by new ones.
Warning: Bent or chipped aluminium castings must not be bent back or straightened
back to the original position.
c) Main
wing / fuselage connecting rods
The main connecting rod between wing and fuselage (4x in the fuselage) contains 6
steel balls (
∅
6 mm) in each fitting. A sliding cover forces the steel balls into a groove in
the moveable lateral axis, thus securing the wings.
In case one or more steel balls are missing, the connecting rod must be exchanged.
Major Repairs
Major repairs must only be carried out by the manufacturer or by a manufacturer
approved repair organization. Major repairs include (amongst others)
•
Broken off wings, fuselage, tail plane, control surfaces, spar stubs.
•
Torn-out main fittings (fuselage tubes Ø 45 x 3)
•
Fitting of the tail plane in fin. Securing bolts in the wing (Ø 18 mm), swivel bearing GE.
20, spar stub bolt Ø 20 mm).
•
Destruction of main bulk (vertical frame).
•
Damage to the GRP laminate (tear, splits, cracks) near the main fittings).
Summary of Contents for Astir CS G102
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