Hilger Watts Theodolite Manual Repack ((hot)) -
For those seeking to create or obtain a high‑quality repack, several archives and institutions hold original manuals and brochures:
Medium-heavy damping grease (e.g., Nyogel 774H or standard instrument grease) for the main horizontal and vertical centers to ensure smooth rotation.
Creating abrasive surfaces that wear down precision components.
The goal of repacking is to achieve a "velvety" feel without any "stiction." hilger watts theodolite manual repack
Inspect the bearings for scoring. If the bearings are damaged, the precision will be compromised. If they are clean, apply a very thin layer of new synthetic lubricant. 5. Reassembly and Lubrication
Watchmaker's oil (e.g., Moebius) for internal micrometer gears and fine adjustment screws.
Once the mechanical components are fully repacked and tracking with uniform damping resistance, the instrument must undergo a standard alignment verification sequence. Mechanical disassembly can disrupt the geometric orthogonals of the optical axes. Hilger watts theodolite manual - Weebly For those seeking to create or obtain a
Take off the protective covers from the theodolite's horizontal and vertical circles. You'll find screws holding the covers in place; use a 3 mm Allen wrench to remove them.
| Model | Key Features | Relevant Manual / Document | | :--- | :--- | :--- | | | Extremely compact design, lighter than earlier models (approx. 9 lbs), introduced in 1954. | "Watts microptic theodolite no. 1: Instructions for use". | | Microptic Theodolite No. 2 | Higher precision version, part of the Microptic series. | "Watts microptic theodolite no. 2" brochure and manual. | | Vernier Theodolites | A range of models, including the popular ST series (e.g., ST156-4). | "Watts vernier theodolites" brochure and "Watts general catalogue of survey equipment". | | 20″ Reading Theodolite | A specific model mentioned in a training guide from 1986. | A step-by-step guide for setting up, measuring angles, and packing up is described in a training DVD. |
) to soften the old lacquer grease until the inner spindle slides out. If the bearings are damaged, the precision will
: Using a safe solvent (historically dry-cleaning solvents or mineral spirits) to remove old, gummed-up grease from the spindles and tangent screws.
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
For general degreasing of mechanical parts.
Restoring Precision: A Guide to the Hilger & Watts Theodolite Manual Repack
"Repacking" a Hilger & Watts theodolite usually refers to cleaning old, hardened lubricants from the internal mechanisms and replacing them with modern, high-grade alternatives. This article serves as a comprehensive guide for technicians and enthusiasts looking to restore their Hilger & Watts theodolite to its original performance. 1. Why Repack a Hilger & Watts Theodolite?