TM 5-6675-316-14
k. If collimation is outside of ±3 minutes of arc, move optical mount to
point just below uppermost limit of travel.
l.
Loosen capscrews attaching vertical carriage to X-bearing housing
assembly.
m.
Tip vertical carriage assembly slightly to left or right as required to
bring collimation song X-axis within limits.
n.
Tighten capscrews and recheck collimation.
4-79/(4-80 blank)