Fuel area sealing
Figure 202
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Validity : S / N 1 — 9999 20-00 09Page 210
(BA) OCT 977
ATTACHMENT HARDWARE SAFETYING
SERVICING
1. TYPES OF SAFETYING MEANS USED
A. Mechanical safetying
— Lockwashers,
— Cotter pins,
— Stainless steel lockwire,
B. Friction safetying
— Nut with built—in locking device,
— Elliptic deformation nuts,
— Bolts with built—in plastic strip,
— Inserts with safetying thread,
— Lockwashers.
C. Safetying by bonding
— Safetying by interposing a "Loctite" type product — refer to 20-00-08.
2. REUSING SELF—LOCKING NUTS AND BOLTS, COTTER PINS AND LOCKWASHERS Reusing removed cotter pins and lockwashers is prohibited.
Reusing bolts or nuts with built—in safetying devices is prohibited.
Reusing elliptic deformation self—locking nuts is permitted provided a visual inspection and a safetying torque check are carried out.
The rules applying to elliptic deformation nuts also apply to thread deformation inserts.
The replacement of elliptic safetying anchor nuts may turn out to be necessary after a visual inspection and a locking torque check in the case of assemblies that can be disassembled.
3. PROTRUSION OF BOLT / SCREW ENDS (Figure 301)
The end of bolts / screws of any safetying method must protrude beyond the safetying device by at least one thread, excluding the rounded portion or the end chamfer.
In the case of a self—locking nut, this value is measured above the safetying portion.
NOTE : Once tightened, the nut and the threaded end must be marked with red paint to enable detection of possible loosening.
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(BA) DEC 98
Attachment hardware safetying — Servicing
Figure 301
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Validity : S / N 1 — 9999 20-00-10Page 302
(BA) DEC 98
RODS
SERVICING
1. ADJUSTMENT OF A ROD (Figure 301)
A. Tools and consumable materials
None
B. Procedure
1) Unlock lockwasher (2).
2) Immobilize the rod with a spanner positioned on the flat surface of the rod end.
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