Essential for removing specialized retaining rings without scratching the lacquered finishes.
Vintage manuals assume existing knowledge. A modern repack often includes a "translated" section written by contemporary users, explaining how to integrate the Hilger Watts into a digital workflow (e.g., converting arc-minutes to decimal degrees).
Action: Disassemble, remove old grease, and apply a thin coating of high-quality, high-viscosity thread lubricant to prevent movement under tension. C. Focusing Mechanism hilger watts theodolite manual repack
The key to a successful repack is moderation. Excess grease will migrate onto the optical glass circles, clouding the view and attracting abrasive dust.
Once reassembled, set the theodolite on a stable tripod. Perform a standard two-face test (Face Left and Face Right) on a distant target to verify that cleaning did not introduce collimation errors. Adjust the reticle adjusting screws and the plate vials as necessary to bring the instrument back into true geometric alignment. Action: Disassemble, remove old grease, and apply a
: Use isopropyl alcohol to dissolve old oil buildup. Avoid harsh chemicals like toluene or acetone, as they can damage the glaze on bearing surfaces.
Do not use a phone camera. Use a flatbed scanner with a lid. Excess grease will migrate onto the optical glass
Submerge the solid mechanical parts (spindle, bush, leveling screws, and tangent assemblies) in a bath of mineral spirits.
Before tightening housing screws, ensure your scribed alignment marks line up perfectly. This guarantees the optical reading micrometers are positioned correctly relative to the scale circles.
: Position the telescope in a vertical orientation before lowering it into the case. Identify Alignment Marks : Most original cases have orange dots or alignment marks
Once the instrument is properly seated, it must be locked into its transport matrix.