Tool Calibration Verification with the Safety
Cable Test Fixture or Electronic Pull Tester.
Indenter calibration should be verified
checked if the nose assembly has been
removed or changed.
Use of the calibration test fixture and
torque wrench to verify safety cable tool indenter
adjustment (see figure 2-100). Thread the safety cable
into the 12 pt. screw and through the swivel, holding the
lever against the built-in-stop. If the lever is not kept
against the stop, the results may be adversely affected.
Terminate the safety cable with the tool being tested.
Apply approximately 2 lbs force to the
cable with your finger at the line marked "test area". If
the cable touches either the side or bottom surface of
the test fixture, remove the cable from the test block,
and re-install another safety cable being careful to set
the tool tension properly, and to hold the lever against
Place a calibrated 3/8 inch drive torque
wrench (capable of indicating 30 inch/lb. for 0.020 inch
safety cable, 70 inch/lb. for 0.032 inch safety cable and
110 inch/lb. for 0.040 inch safety cable) into the square
drive hole, orienting the test block and torque wrench on
a flat surface. Do not over torque the cable.
TORQUE WRENCH MINIMUM
Figure 2-100. Calibration test Fixture and Torque
The safety cable should remain in
place during application of the measured force. Apply
approximately 2 lbs. force to the safety cable with your
finger at the line marked "test area". If the safety cable
touches either the side or bottom surface of the test
fixture, the crimp is unacceptable and the tool indenter
should be adjusted.
Use of an electronic pull tester to verify
safety cable tool indenter adjustment. (See figure 2-
101). It may be required in some applications to pull
test safety cable to destruction. If this is required, an
electronic pull tester may be used in place of the
calibration test fixture/ torque wrench method. The type
of machine pictured in this manual will satisfy this
Figure 2-101. Electronic Safety Cable Pull Tester
Indenter Adjustment for all Safety Cable
Application Tool Models.
frequently by the use of the calibration
test fixture, or the electronic pull tester.
removing the two 8-32 socket head cap screws with a
9/64 inch hex wrench. (See figure 2-102).
Adjust the push-rod adjustment screw
with a flat blade screw driver, or the manufacturer
supplied adjustment key. See figure 7-103. Turn the
push-rod adjustment screw clockwise to loosen the
counterclockwise to tighten the crimp (reduce the gaging
dimension). Replace the mose assembly and the two 8-
32 socket head cap screws, being sure that they are
firmly tightened. Check calibration as previously
Change 2 2-91