TM 11-5840-208-30-1
(3)
Connect the test probe to J882.
Set the HR and HW counters to 1, 000 meters.
(4)
(5)
Set the bridge potentiometer to 0000. If the meter nulls, proceed to the next step. If the meter does not null,
mechanical alignment of R806 is required. See paragraph 5-6c.
(6)
Set the bridge potentiometer to 0357.
(7)
Position the H handwheel for an HW reading of 542. 5 meters.
(8)
Adjust +H potentiometer R976 for meter null.
(9)
Connect the red test lead to J891.
(10) Position the H handwheel for an HW reading of 1,457. 5 meters.
(11) Adjust -H potentiometer R977 for meter null.
(12) Disconnect the test leads.
d. Alignment of the Elevation Subassembly.
(1)
(2)
(3)
Insure that the beam separation is set at 35 mils.
(4)
Connect the red test lead to J890.
(5)
Connect the black test lead to J897.
(6)
Connect the test probe to J881.
(7)
Set the bridge potentiometer to 0000. If the meter nulls, proceed to the next step. If the meter does not null,
mechanical alignment of R821 is required. See paragraph 5-6c.
(8)
Set EL to -35 mils.
(9)
Connect the test probe to J887. If the meter nulls, proceed to the next step. If the meter does not null,
mechanical alignment of R822 is required. See paragraph 5-6c.
(10) Connect the test probe to J881.
(11) Set EL to +50 mils.
(12) Set the bridge potentiometer to 1593.
(13) Adjust +EL potentiometer R983 for meter null.
(14) Connect the red test lead to J891.
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