ADJUSTING YOUR MICROMETER TORQUE
WRENCH
CAUTION-Do not turn the GRIP with the LOCK RING in the lock
position. Damage to the adjusting mechanism may occur.
1. To UNLOCK, hold Handle GRIP
with one hand and pull down
LOCKING COLLAR in direction
of arrow.
2. Rotate GRIP until the "0" on the
THIMBLE SCALE reaches the
primary number of the desired
torque value on the SHAFT MAIN
SCALE.
3. Continue rotating the GRIP if the
desired torque value is between
the primary numbers on the MAIN
SCALE. Add the secondary
number on the THIMBLE SCALE
to the primary number on the
MAIN SCALE to achieve the
desired torque value.
4. To lock wrench, release
LOCK RING.
EXAMPLES OF TORQUE SETTINGS
NOTE: Many models have both American Standard and Metric
scales on the same wrench.
The MAIN SCALE American Standard graduations are on the
front of the SHAFT and the THIMBLE SCALE graduations are
closest to the beveled edge. The MAIN SCALE Metric
graduations are on the reverse side of the SHAFT and the
THIMBLE SCALE Metric graduations are below the American
Standard graduations.
EXAMPLE - STANDARD
For a torque setting of 94 foot pounds,
rotate GRIP until the "0" on the
THIMBLE SCALE is aligned with the
"90" on the "FT.LB." MAIN SCALE.
Continue rotating GRIP clockwise until
the "4" on the THIMBLE SCALE is
aligned with the center line on the
"FT.LB." MAIN SCALE. The wrench is
now set at 94 foot pounds. Put the
LOCK RING in the lock position before
using.
EXAMPLE - METRIC
For a torque setting of 105.8 Newton
meters rotate the GRIP until the "0" on
the THIMBLE SCALE is aligned with the
104.4 on the "N.m" MAIN SCALE.
Continue rotating the GRIP clockwise
until the 1.4 on the Metric THIMBLE
SCALE is aligned with the center line of
the "N.m" MAIN SCALE.
The wrench is now set at 105.8 N.m
(104.4 +1.4=105.8). Put the LOCK
RING in the lock position before using.
HOW TO APPLY TORQUE
1. This Micrometer Adjustable Torque Wrench is designed so that
when force is properly applied to the handgrip, an audible signal
and/or impulse feel will indicate that the desired torque has been
attained. DO NOT-pull beyond this point.
CAUTION: The audible signal and/or impulse feel is an indicator
that the proper torque has been attained. Over torquing beyond
these signals could cause fastener failure.
Additionally, when wrench is set at low end of the torque range, the
degree of signal and impulse will be less than when set at the high
end of the range. Therefore, care must be taken at low end of scale
to hear signal or feel impulse.
2. To properly apply torque, attach socket securely on torque
wrench square drive and position socket on the fastener so that
tilting will not occur. Grasp the center of hand grip and apply a
force perpendicular (90 degrees ) to the torque wrench body and
perpendicular (90 degrees) to the center line of the square drive,
socket, and fastener.
NOTE: The common center line of the square drive, socket and
fastener must be maintained while applying a steadily increasing
force as shown in Figure in order to insure accurate torque readings
via an audible signal or impulse feel.
WARNING: Do not tilt torque wrench handle during torquing
operation. Tilting of torque wrench handle can result in inaccurate
torque and/or over-torquing damage.
2. Turn the fastener down with a smooth and even force applied
to the handle of the torque wrench (as described in fig.). As
turning resistance increases pull more slowly. To assure
accuracy, the fastener must be in motion when the torque
measurement is made.
WARNING: USE OF NON-AXIAL EXTENSIONS THAT CHANGE
THE EFFECTIVE LENGTH OF THE TORQUE WRENCH SUCH
AS CROWFOOT ATTACHMENTS OR UNIVERSAL JOINTS WILL
CHANGE THE TORQUE BEING APPLIED. DO NOT USE UNTIL
YOU KNOW THE CONSEQUENCES.
PULL TO U
PULL TO U
