Change 4 7-13
Pneumatic Safety Cable Tool. (Figure 7-25.)
Confirm that the tool is set-up correctly and calibrated.
Connect the pneumatic safety cable application tool to a
clean dry air supply of 80 to 100 psi.
Install the safety cable through the compo-
nents, which are to be secured.
The tool nose can be rotated to any conve-
Insert the free end of the cable through the
ferrule in the cartridge, and remove the ferrule by pulling
the cable away from the end of the cartridge. Insert the
free end of the cable through the nose of the tool, and
slide the tool along the cable to the desired position.
Rotate the cable tension wheel clockwise if
necessary to move the cable entry slot to an accessible
position. Align the nose such that the ferrule is pressed
square against the component being secured. Make cer-
tain the ferrule is fully seated in the tool nose. Insert the
free end of the cable into the cable entry slot of the cable-
tensioning wheel. When the end of the cable exits the
wheel, grip the slack from the cable. Do not leave more
than 1 1/2 inch of total slack in the cable.
Press the trigger and hold. The tool will
apply tension to the cable, crimp and cut. When the trig-
ger is released, the crimp mechanism will retract (after
the cycle is completed). The tool nose can then be
removed from the ferrule, and the excess cable dis-
Figure 7-25. Pneumatic Safety Cable
Safety Cable Application Tool Maintenance and
Calibration. The safety cable tools should be stored in a
clean, dry place when not in use. Clean any debris (espe-
cially in the crimp cavity in the tool nose) from the tool with
a small brush and solvent if necessary. Lubricate the tool
nose (into the crimp cavity) with a drop of oil on a regular
Tool calibration verification with the torque verifi-
cation fixture, or the electronic pull tester.
Indenter calibration must be checked
frequently, and must be checked each
time the nose assembly has been
removed or changed.
Use the torque verification fixture (Figure 7-26.)
and a calibrated torque wrench (0-155 inch-pound scale)
to verify the safety cable tool indenter adjustment.
Thread a new piece of safety cable into the torque verifi-
cation fixture and crimp a ferrule onto the cable with the
safety cable application tool being tested. This process
is the same for all hand and pneumatic tool models.
Apply approximately 2 pounds force to the cable with
your finger at the point marked ªtest areaº. The cable
should not touch the side of bottom wall of the fixture.
Place a calibrated 3/8 inch drive torque wrench
(capable of indicating 30 inch-pounds for .020 cable, 70
inch-pounds for .032 cable, and 110 inch-pounds for .040
cable) into the square drive hole. Orient the verification
fixture and the torque wrench on a stable surface, slowly
and steadily apply the force until the required torque is
indicated. Do not apply additional pressure after the
required force is indicated. Release and remove the
Repeat the application of a 2 pound force to the area
marked ªtest areaº. The safety cable should not touch the
wall of the verification fixture. Upon the successful
completion of this test, the tool can be used to apply