CDI Torque TORQUE WRENCHES Micro-Adjustable Click Type - Manual (Page 21)

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The wrench must always be assembled with some positive pressure on the spring. To
assure positive pressure, the pivot hole of the head must be pushed into alignment with
the pivot hole on the tube. Failure to assemble the wrench with positive pressure will
result in the wrench not being able to hold calibration.
To check for positive pressure on the spring
a) Place the pivot pin into the assembled wrench.
b) With the handle unwound to its lowest point (the handle stop), the wrench should be
at 5% to 10% of full scale (example a 250 ft/ lb. wrench should read 12.5 to 25 ft. lb.)
on a torque tester.
c) If the wrench does not click or reads below at 5% of full scale on a torque tester when
the handle is at its lowest position, disassemble and add more washers to increase the
pressure.
6. Pull the lock ring down and adjust the wrench up to the maximum scale value.
Cycle the wrench a minimum of 25 times in both directions (clockwise &
counterclockwise).
7. Pull the lock ring down and adjust the wrench down to minimum scale value.
8. Perform an accuracy verification and if required, a minor calibration adjustment.
9. After calibration, insert a new rivet into the pivot pin. Use a hammer to lock rivet
into pivot pin.
CAUTION