Vertical Cross-Hair On Telescope - Pentax W-1502N Series Instruction Manual

2) Adjustment
When a centre part where a cross intersection and the laser mark look the
brightest shifts by 0.5mm or more (at the instrument height 1.5m), it is
necessary to adjust it.
A repair engineer does this adjustment. Please contact the LINERTEC dealer.

5.5 Vertical Cross-hair on Telescope

1) Check
(1) Set the instrument up the tripod and carefully level it.
(2) Set a point A front the instrument 50m apart;
(3) Collimate the point A and adjust the vertical tangent screw; If the point
appears to move continuously on the hair, adjustment is not required.
Otherwise, adjust it.
2) Adjustment
(1) Set the instrument, and set the point A front the instrument 50m apart.
(2) Take off cover of telescope eyepiece, there are 4 screws for the reticle
part.
(3) Loosen all four fixing screws slightly with the cross screw-drive.
(4)Revolve the eyepiece section so that the vertical cross-hair coincides to
point A, finally, re-tighten the four screws.
(5) Repeat the checking and adjusting until there is no deviation.
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