Torque Setting - Procedure
1. Insert the Torque Adjustment Key into the wrench as shown. The Locking
Key should not yet be engaged. The Torque Adjustment Key will slide easily
into the center of the wrench adjustment mechanism. Some slight rotation
of the key may be necessary to assure it fully engages the torque adjust-
ment mechanism.
2. Insert the Locking Key into the jam nut by sliding it forward on the CART
Tool. Only finger pressure will be needed to tell when the Locking Key
meets the jam nut. It may be necessary to slightly rotate the Locking Key to
allow the hex on the key to engage the hex on the nut. When the engage-
ment occurs, you will feel the Locking Key slide further forward slightly.
3. Hold the Locking Key
in position and rotate
the Torque
Adjustment Key
slightly clockwise to
insure the jam nut is
disengaged from the
torque adjustment
mechanism.
4. Engage the square drive of the torque wrench to the tester. The drive must
be fully engaged for proper testing. Check the current torque setting before
making any torque setting adjustments.
5. With the wrench still engaged to the tester, grasp the wrench grip and rotate the CART Tool slightly clock-
wise to increase the torque setting or
slightly counter-clockwise to
decrease the torque setting. If there
is a large difference between the
current torque level and the desired
setting, repeat the rotation several
times, while checking the torque
between adjustments. The greater
the amount of rotation, the greater
the change in torque. Care should
be taken not to exceed the maximum torque; small amounts of rotation between tests on the tester are rec-
ommended. Continue adjusting and checking until the desired torque is attained.
6. Grasp the wrench and the CART Tool. Hold the Adjustment Key in place and rotate the Locking Key clock-
wise until it jams against the
torque adjustment mechanism.
This will be felt as firm resistance
to further rotation. Then hold the
Locking Key in place and attempt
to rotate the Adjustment Key
counter-clockwise. It should not
move more than a small fraction of a turn. When that is complete, the torque is set and locked in place.
