TB 9-6695-301-50
(5) Press the F4 key on the TI indicator until you see the UNIT soft key. Press the
UNIT soft key as necessary to select the appropriate units to display.
(6) Press the F4 key on the TI indicator until you see →0← soft key. Press the
→0← soft key to zero TI indicator.
NOTE
Exercise torque cells by loading to full load (2500 ft-lbs) in the
proper direction (cw or ccw) and just prior to calibration.
CAUTION
Do not exceed 2500 ft-lbs.
(7) Apply 2500 ft-lbs torque with the torque wrench, then decrease slowly and
carefully, hesitating about 30 seconds at full and no-load positions. Repeat cycle twice or
until 0 setting is stable.
(8) Observe that operation is smooth and that both indicators show essentially the
same load. Both indicators should indicate a plus (+) sign in the cw direction and a minus
(-) sign in the ccw direction.
(9) Remove all load (torque) from TI. (Remove torque wrench if necessary)
(10) Press the F4 key on the TI indicator until you see →0← soft key. Press the
→0← soft key to zero force/torque indicator.
(11) Operate crank handle of torque wrench in the direction exercised to obtain load
cell indicator indication shown in table 4. If TI indicator indications are not within limits
specified, perform b below.
Standard
Test instrument
(torque cell)
(ft-lbs)
(ft-lbs)
Min
Max
300
297.5
302.5
400
397.5
402.5
600
597
603
800
796
804
1000
995
1005
1500
1492.5
1507.5
2000
1990
2010
Full scale 2500
2487.5
2512.5
(12)
Repeat 6 through 11 above in the opposite direction.
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