C. General
(1)
Follow this procedure for fasteners (includes bolts, screws, nuts, and castle nuts), plugs, caps, fluid fittings, electrical connectors, pins, and rod ends.
(2)
For safety cable, the maximum distance between termination points is
6.00 inches (152.40 mm), unless specified differently in the assembly instructions.
(3)
Any cable defect (nick, fray, kink, or other mutilation of the safety cable) found before, during, or subsequent to installation, at or between termination points, is not permitted.
CAUTION: DO NOT USE SAFETY CABLE IF THE HOLES ARE MORE THAN 0.100 INCH
_______
(2.54 MM) DIAMETER. THE FERRULES ON THE END OF THE CABLE ARE 0.106-0.108 INCH (2.692-2.743 MM) DIAMETER AND WILL FALL THROUGH HOLES LARGER THAN THIS.
(4) In all cases, you must install the safety cable through the safety cable holes on the part.
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(5)
Safety cable and ferrules must be new at each installation.
(a) Do not use the cables or ferrules again.
(6)
Figure 207, examples 1 through 3 show different examples of safety cable installation.
(a)
The figure does not show all of the possible fasteners and related parts.
(b)
Install safety cable in two (2) or three (3) bolt groups, unless specified differently in the assembly procedure.
(c)
When you install safety cable to an even number of fasteners, use the two-bolt group.
(d)
You must obey the basic rules of safety cable installation for all types of fasteners and related parts used.
(7)
Use the mechanical crimper to crimp the ferrule to the cable.
(a) The safety cable assembly must have the minimum "pull-off" load (the force necessary to pull the cable out of the ferrule). 1) See below for specific limits.
~................................................................ | NOMINAL SAFETY CABLE DIAMETER | MINIMUM PULL-OFF LOADS | .................................................................. | 0.020 inch (0.508 mm) | 30.0 lbf-in (3.390 N.m) | .................................................................. | 0.032 inch (0.813 mm) | 70.0 lbf-in (7.909 N.m) | 2...............................…................................1
D. Procedure
S 412-035-N00
(1) Do these steps when you install the safety cable:
(a)
Do not increase the torque on parts more than the torque limits, or decrease the torque on the parts, to try to align the cable holes in the parts.
(b)
Install the safety cable so that if a fastener loosens, more tension is applied to the safety cable. 1) As you thread the cable through the fasteners, try to
prevent sharp turns by no more than 90 degrees.
2) After you install the safety cable, make sure of these limits: a) The maximum cable flex limits between termination
points must be no more than the limit specified in Figure 208. b) A maximum of 0.031 inch (0.787 mm) of unwanted cable is permitted to extend past the crimped ferrule. 3) Apply and crimp a lead seal to the safety cable when specified by the assembly procedure.
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STANDARD HARDWARE
EXAMPLE 1
EXAMPLE 2
L-B4053 (0000)V
Safety Cable Examples Figure 207 (Sheet 1)
G53458
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