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OPERATION
Setting
the
Torque
Loosen the counter screw and set
the required torque by turning
the handle. The scale on the shaft
of the spanner gives a sequence of
settable
torque
values;
the
precise value in the applying unit
is set by turning the handle and
using the scale running around
Counter Screw
the handle.
Example:
To set a torque of 90 Newton meter, turn the handle until the "0" marking is at
the line along the shaft at the "84" marking on the shaft. To reach a torque of 90
Newton meter, turn the handle until the "6" is on the line (84+6=90). There is a
scale on each side of the shaft for convenience.
After that, secure the handle with the counter screw.
After use, set the torque spanner to the lowest value to take the stress off the
internal springs.
Direction
The direction is set in the same way as on a ratchet with the toggle switch.
Torque is measured in clockwise rotation only.
Cleaning and Maintenance
The torque spanner does not require special maintenance. Store it in a dry place
and keep it lightly oiled.
If the spanner is used extensively, it is advisable to have it recalibrated by a
professional from time to time.
Please Notice!
If possible, do not use extensions or joints between spanner and nut, these may
flex and lead to corrupted torque readings.
Apply even force on the handle and avoid jerking the handle when tightening
screws, and immediately stop applying force when you hear the unlocking snap
from the spanner.
The torque spanner is a precision tool. Use it only to tighten screws, but do not
use it for loosening them or as a general purpose ratchet, it is neither intended
nor suitable for this.
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