Hi-Target HTS-420R - Preparation Before Measurement; Instrument Unpacking and Storage; Instrument Setup Procedure

HTS-420R Maintenance Manual
9
List of Common Maintenance Items
1
Long level vial calibration
2
circular level vial calibration
3
Telescope reticle calibration
4
Collimation error calibration(2C calibration)
5
Index error calibration(2I calibration)
6
Compensator mechanical zero position alignment
7
Compensating linearity calibration of compensator
8
Laser plummet alignment
9
EDM laser replacement
10
EDM laser beam alignment
11
filter motor replacement
12
Prism/No Prism mode switch motor
13
light path switch motor replacement
Maintenance Operations
1. Long vial calibration
1) Fix the instrument on a solid and stable platform and set the vial to the position between leveling screw
A and B, then continue the steps below.
2) Adjust the screw A and B to center the bubble. Turn the instrument horizontally by about 90°and then
adjust screw C to center the bubble. Turn the instrument 180°to check if the bubble is still staying in the
center. If it is, the vial is aligned, otherwise take the next step.
3) Use the adjusting pin to twist the screw beside the vial to make the bubble move half distance toward
the center.
4) Repeat the step 2 and 3 until the bubble is in the center in every direction.