TB 9-6670-258-35
(7) Repeat (1) through (6) above for each of the remaining two TI cells. Perform b (2)
below for TI cell No. 2 and b (3) below for TI cell No. 3, if adjustments are required.
NOTE
If a linearity error occurs at any setting (if indicator is low or
high on all three TI cells), perform linearity adjustments
specified in b (4) below.
(8) Substitute load cell No. 3 for load cell No. 4 in setup.
(9) Exercise load cell No. 3 to full capacity three times.
(10) Check TI cell from 2000 to 10,000 pounds in 1000 pound increments.
TI
indication will be within 25 pounds of load cell indicator indication.
(11) Repeat (10) above for each of the remaining two TI cells.
(12) Substitute load cell No. 2 for load cell in No. 3 in setup. Exercise load cell No. 2
to full capacity three times.
(13) Check TI cell from 200 to 2000 pounds in 200 pound increments. TI indicator
indication will be within 25 pounds of load cell indicator indication.
(14) Repeat (13) above for each of the remaining two TI cells.
b. Adjustments
NOTE
Adjustments in (1) through (3) below are for each TI cell and
are to be performed at 50,000 pounds with load cell No. 4
installed. If an indication within limits specified cannot be
obtained, adjust R29 SPAN (fig. 7). R29 SPAN affects all three
TI cell adjustments. If R29 SPAN is adjusted, repeat (1)
through (3) below until no further adjustments are necessary.
(1) Adjust R5 (fig. 7) for an indication within limits specified. (R)
(2) Adjust R6 (fig. 7) for an indication within limits specified. (R)
(3) Adjust R7 (fig. 7) for an indication within limits specified. (R)
(4) Linearity adjustments:
(a) Apply a 10,000 pound load to cells, set POUNDS thumbwheel to 10,000
and R31 (fig. 7) for a null indication. (R)
(b) Apply a 20,000 pound load to cells, set POUNDS thumbwheel to 20,000
and adjust R25 (fig. 7) for a null indication. (R)
(c) Apply a 30,000 pound load to cells, set POUNDS thumbwheel to 30,000
and adjust R19 (fig. 7) for a null indication. (R)
(d) Apply a 40,000 pound load to cells, set POUNDS thumbwheel to 40,000
and adjust R14 (fig. 7) for a null indication. (R)
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