Theodolite Manual Repack | Hilger Watts

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Leading to "stiction" (static friction) where the movement feels jerky, making precise aiming difficult.

Center the foot screws on the tribrach so they are at the midpoint of their travel. hilger watts theodolite manual repack

Inspect the ground surfaces of the spindle and bush. They should display a uniform, dull-satin or polished finish. If you see bright rings, deep scoring, or corrosion, the metal has suffered damage. Minor burrs can sometimes be carefully polished out with an ultra-fine abrasive compound, but extreme caution is required to avoid altering the geometry of the axis. Step 6: Applying New Lubrication (The Repack)

Use a high-quality, temperature-stable grease (e.g., synthetic instrument grease ). 2. Disassembly & Cleaning Search VintageMachinery

When lowering the alidade back onto the spindle, ensure it drops completely under its own weight. Spin it gently; it should rotate smoothly without tight spots or grittiness.

A brass drift punch, a set of precision tweezers, and a spanning wrench for optical retaining rings. Step-by-Step Disassembly Sequence 1. Outer Shell and Accessories Inspect the ground surfaces of the spindle and bush

However, owning a vintage Hilger Watts theodolite today comes with a unique challenge: the original is often missing, water-damaged, or crumbling into brittle fragments. This is where the concept of a "Hilger Watts theodolite manual repack" becomes essential.

Acidic compounds can form, attacking metal surfaces.

Avoid touching the glass elements with bare fingers, as skin oils can permanently degrade anti-reflective coatings over time. 6. Applying New Dampening Grease (The "Repack")

Isopropyl alcohol (99% pure) or odorless mineral spirits. Avoid harsh solvents like acetone, which will instantly dissolve original paints, optical cements, and protective lacquers.