Manual Repack [repack]: Hilger Watts Theodolite

Bring all fine-adjustment tangent screws to the mid-point of their travel. If a screw is left fully extended, it is highly vulnerable to being bent or snapped by the case padding.

are clear. Avoid touching lenses with bare fingers to prevent oil transfer. Johnson Level & Tool 2. The Repacking Sequence Hilger & Watts

: Apply a thin, even layer to the mating surfaces and threads.

Apply medium-viscosity grease to the leveling foot screws and re-thread them into the tribrach. Run them back and forth through their entire range of travel to distribute the lubricant. 🔍 Post-Repack Optical and Mechanical Alignment hilger watts theodolite manual repack

This guide provides a comprehensive framework for successfully repacking a vintage Hilger & Watts theodolite to restore its ultra-smooth fluid movement. Anatomy of Hilger & Watts Centers and Bearings

Undo the locking clamps or base fasteners to separate the upper instrument body from the leveling tribrach. Set the leveling base aside for separate servicing.

Carefully extract the optical reading eyepieces if they obstruct mechanical access. Bring all fine-adjustment tangent screws to the mid-point

Slide the spindle back into its sleeve with a slow, twisting motion to distribute the grease evenly.

A 5x or 10x loupe for inspecting bearing surfaces and gear teeth for wear or debris.

Take photographs of every step. Remove the base plate, followed by the horizontal circle assembly, then the vertical axis. Avoid touching lenses with bare fingers to prevent

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Center the leveling foot screws so that the instrument sits at a mid-range height.

Reassemble and check the telescope swing; it should rotate effortlessly with absolutely zero detectable side-play or dead zones. 5. Cleaning Tangent Screws and Clamps