TB 9-5120-212-35
c. Unless otherwise specified, verify the result of each test and, whenever the test
requirement is not met, take corrective action before continuing with the calibration.
Adjustments required to calibrate the TI are included in this procedure. Additional
maintenance information is contained in the manufacturer's manual for this TI.
d. Unless otherwise specified, all controls and control settings refer to the TI.
a. Verify that TI is clean and free from defects that would impair its operation.
b. Ensure that equipment has been allowed to stabilize at the ambient temperature.
c. Position torque fixture on a stable and rigid work surface and secure with bolts or
clamps.
d. Place 2500 ft-lb torque cell inside fixture with
dowel pins engaging holes in
bottom
of fixture.
e. Place plate (furnished with torque fixture) on top of torque cell.
f. Insert drive bar into square opening in plate.
g. Place TI on fixture, engaging drive bar and dowel pins.
h. Connect torque cell to force/torque indicator using cable supplied with force/torque
indicator. Connect force/torque indicator to appropriate power source. Turn power switch
to ON and allow the units to warm up for 30 minutes. Select channel 3 using the
CHANNEL + and keys.
soft keys.
i. Press the F4 key on the force/torque indicator until you see the
soft keys as necessary to select the torque cell for the TI range and
Press the
direction being calibrated. Insure the serial number matches the torque cell being used.
j. Press the F4 key on the force/torque indicator until you see the UNIT soft key.
Press the UNIT soft key as necessary to select ftlb.
k. Press the SIGNAL
to select the GROSS mode of operation. Press the F4 key
on the TI indicator until you see the Acal soft key. Press the Acal soft key as necessary to
activate the Acal enunciator.
a. Performance Check
WARNING
Friction brake must be adjusted to hold 1200 ft-lbs applied
torque when pressure is released from T-handle.