A Complete Guide to Repacking a Hilger & Watts Theodolite for Safe Transport and Storage
Secure the instrument to the base plate using the integrated fixing screw or locking hooks. Store Small Accessories Check for dedicated slots in the case for the (plumb bob) and any battery-powered lamps or tools.
Application:
Apply sparingly. Use a toothpick to place small dots of grease on the bearing surfaces and gear teeth, then rotate the parts to distribute it evenly. 4. Reassembly & Calibration Once repacked, the parts should glide smoothly.
Hilger & Watts instruments are susceptible to "fungus" or etching on the internal glass scales if stored in humid conditions. Always include a fresh 50-gram packet of silica gel inside the metal case. If the instrument has been used in the rain, let it air dry completely in a climate-controlled room for 24 hours before sealing it in its case. For long-term storage, a light coat of archival wax on the outer painted surfaces can prevent the "crackle" finish from degrading.
Documentation:
Hilger & Watts instruments have intricate internal linkages. Take photos at every stage of disassembly to ensure you know the orientation of gears and optical paths. 2. Degreasing (The "Clean")
Transit Check
: The Microptic's short telescope is designed to swivel completely from back to front, which you can use to check for irregularities in the circles and supports after your service.
- Familiarize yourself with the instrument: Before starting, make sure you have a good understanding of the theodolite's components, their functions, and how they interact with each other.
- Gather necessary materials:
Zeroing:
Ensure the horizontal and vertical circles are properly seated.