Mount the theodolite on a stable tripod and use the footscrews to center the bubble.
A Complete Guide to Repacking a Hilger & Watts Theodolite for Safe Transport and Storage hilger watts theodolite manual repack
By taking the time to properly maintain and calibrate your Hilger Watts theodolite, you can ensure that it continues to provide accurate and reliable results, helping you to achieve your goals in surveying, engineering, or geology. Mount the theodolite on a stable tripod and
| Model | Accuracy | Manual Repack Priority | | :--- | :--- | :--- | | | 1 arc-second | Focus on optical micrometer zero adjustment. | | Microptic No. 3 | 20 arc-seconds | Simple; repack needs only basic leveling and circle reading. | | 0.1″ Geodetic | 0.1 arc-second | Critical: The repack must include the reduction tacheometry tables and illumination system for the circles. | | Watson MH (pre-merger) | 1 minute | Requires adaptation notes because it uses external verniers, not an optical micrometer. | | | Microptic No
You have three legal/ethical options:
Create a hybrid repack . Keep a waterproof digital copy in your field bag (laminated or in a waterproof phone case) and store a high-quality physical repack in your workshop’s archive.