TB 9-5120-206-24
i. 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
(1) Set TI indicator to zero with no torque applied.
(2) Exercise TI as follows:
(a) Turn crank handle cw to obtain an approximate full-scale indication on TI
indicator. Force/torque indicator will indicate ccw reaction torque.
(b) After 30 seconds, turn crank handle ccw to obtain a zero indication on
TI indicator.
(c) Repeat (a) and (b) above two times.
(d) Press the F4 key on the force/torque indicator until you see →0← as soft
key. Press the →0← soft key to zero force/torque indicator.
(3) Operate TI cw to obtain indications listed in table 3. If load cell indications are
not within limits specified, perform b below.
Test instrument
Force/torque indicator indications
indications (ft-lb)
Min
Max
100
97
103
200
194
206
300
291
309
4001
388
412
500
485
515
600
582
618
1Replace
torque cell no. 1 with torque cell no. 2 and repeat paragraph 7 e through 8 a (2).
NOTE
The calibration points must be approached in the direction of
increasing torque. If calibration point is passed, reduce torque
(4) Repeat 7 e through 8 (3) above, except turn crank handle ccw.
(5) Turn TI crank handle cw to obtain a zero indication.
b. Adjustments
(1) Apply torque in cw direction for TI indication of 100 ft-lb and record indication.
(2) Repeat (1) above at 300 ft-lb.
NOTE
Whenever direction of torque is changed (cw or ccw),
force/torque indicator setup must be changed and TI must be
exercised three times.