l. Rotate the AB-643/FPN-40 with the MOUNT POSITION switch (S4206)
until the support beam casting is parallel with the rear of the CY-2830/FPN-
40 (Figure 18).
Figure 18.
Radar set group OA-2665/FPN-40.
m. Correct half the error with the side leg leveling jacks and readjust
the spirit level jam nuts for a level indication if the spirit level that is
parallel to the support (Figure 11) indicates an unlevel condition.
n. Repeat the procedures given in paragraphs j through m above until
the spirit level indicates a level condition in both positions (Figure 12).
o. Rotate the AB-643/FPN-40 with the MOUNT POSITION switch (S4206)
until the support beam casting is parallel with the rear of the CY-2830/FPN-
40 (Figure 18).
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