TB 9-6670-258-35
(13) Remove the eight (8) larger screws from the edge around the front panel and
remove the indicator from the case.
(14) Turn on the channel to be zeroed, all others off.
(15) Center the front panel ZERO knob by turning fully clockwise, then five (5) turns
counterclockwise.
(16) Adjust the coarse zero pot located on the upper right rear of the indicator for a
zero reading on the digital indicator.
(17) Reassemble and apply 15,000 pounds of force. If display does not read correct
weight, adjust span pot in the center of the front panel for the cell that is under test to the
correct indication. Pots may be covered with labels. Repeat 8 a above.
9. System Calibration Alternate
Technique (Reference)
a. Performance Check
(1) Set voltage selector switch on TI to position which corresponds to power source
being used. Connect TI to power source.
(2) If ac is used, check voltage as follows: