TB 9-6670-248-50
8. Weightbeam Check
a. Performance Check
NOTE
This performance check is for style 3, full capacity beams only.
(1) Slide poise on main bar to 100.
(2) Place 110 lb from weight set (A2, table 1) in center of UUT platform.
(3) Slide poise on weightbeam until beam is balanced. Indication on beam will
correspond to known value of standard weights within one-fourth of a pound or 1 beam
subdivision, whichever is greater.
(4) Repeat (2) and (3) above, using required weights to balance beam at midrange
and full scale.
b. Adjustments. No adjustments can be made.
9. Final Procedure
a. Store standard weights in containers.
b. In accordance with TM 38-750, annotate and affix DA Label 80 (U.S. Army
Calibration System). When the UUT cannot be adjusted within tolerance, annotate and
affix DA Form 2417 (Unserviceable or Limited Use Tag).
SECTION III
SPECIFIC ITEM IDENTIFICATION
10. Identification. This section identifies specific equipment as issued with specific
calibration standards sets or specific maintenance equipment groups.
11. Secondary Transfer Calibration Standards
a. Equipment Identification. The
equipment listed in
table 2 is
issued with
secondary transfer calibration standards set 4931-621-7877 and is to be used in performing
this procedure. When any equipment listed in table 2 is not available, equivalent items
may be substituted provided that they meet the minimum use specifications listed in table
6