How balance staffs are replaced Ken Pell Components of balance assembly Wheel (split or solid) Staff (riveted or friction) Hairspring (flat or overcoil)

Slides:

Advertisements

Similar presentations

J.P. Langston Brake Retrofit

Advertisements

Brake System Diagnosis and Repair

Equipment for Assembly Fluke Multimeter 115 True RMS Glue Ring Jig Flathead screwdriver 60 Watt desk lamp HIOS Cl 4000 Electric screw driver Anti-static.

Instructions for making plunger fork tool. Drawing for the trigger assembly.

H.E. Anderson Company Maintenance Tip How to Replace a Chemical Side Diaphragm This presentation will show you how to change a chemical side diaphragm.

2 Chapter Hand Tools. 2 Chapter Hand Tools Objectives Identify the various types of hand tools. Describe the advantages and disadvantages of each type.

The Metalworking Lathe

ZIPP 404 BEARING REPLACMENT GUIDE Tools Needed:

Clutch Replacement & Inspection Be sure to mark the Pressure Plate to Flywheel orientation. Loosen bolts in sequence 1/2 turn at a time to prevent warpage.

Introduction Thank you for taking the time to view this slideshow, it will walk you through the re- assembly and pieces of your watch. Thank you for taking.

Cutting Machines Foldable Information. DRILL PRESS Related Terms  Center punch  Cutting Oil.

Machining Two introductory projects 1.Support post for mirror mount 2.Vertical micro-rail mount.

Automotive Wheel Bearings. Bearing Basics Things roll better than they slide. Rolling friction has less resistance that sliding friction. Parts last longer!

Milling Machine Setups

Research & Development Machine Safety Information.

Tool Identification and Use. Where do you buy tools? Dealers Snap-On Mac Retail Stores Canadian Tire Wal-Mart.

Tire Servicing Program. Agenda WorkSafeBC Requirements Definitions Responsibilities General safety.

CHAPTER 32 Disc Brake System.

MORSE TAPER DRILLS Morse taper drills are used when a hole larger than ½” is needed Morse taper drills are used when a hole larger than ½” is needed Morse.

2- Crankshaft, Piston Pin, and Piston Rod Bushing.

994 RPDA 21/2”- 6”. Modification Overview  Production of the 994RPDA began in 1999 and is current.  The 994 RPDA currently utilizes the ¾” 009M3 for.

Hand Tools And Bench Work

DO NOW LESSON # 1)What are the 5/20/2015. Focus Point: What are the Types of Punches? ► Instructional Objectives: ► 1. List the purpose of various punches.

4- Flywheel and Crankwheel. The kinetic energy in the flywheel caries the engine through the portion of its rotation where there is no energy input, therefore.

Connecting crank and pivot shaft assemblies. Press fits, or interference fits are sometimes used in manufacturing to reduce manufacturing costs or liabilities.

3- Pipsqueak Piston and Cylinder. Work holding in the Lathe Collets have definite advantages over chucks in gripping work pieces in the lathe. They apply.

Repairing and Reconditioning Tools Tool Fitting. Objectives: 1)Identify and remove rust from tools in the lab with 100% accuracy 2)Demonstrate the application.

USING THE LATHE TO MAKE THE TENSILE TESTING SAMPLE

Resource 2 Manufacturing Techniques Machining Operations & Techniques.

Drill, Tap, Die & Eye.

MR. PATTERSON CONSTRUCTION TECH 1

PHSAUTOMOTIVESALSPHSAUTOMOTIVESALS DRUM BRAKE OVERHAUL.

SAFETY RULES Follow all directions the first time they are given. Be courteous in language and actions. Be on time and prepared to participate. Respect.

North Seattle Community College Watch Technology Institute February 2005 Course on Surface Finishing.

Introduction Thank you for taking the time to view this slideshow, it will walk you through the re-assembly and pieces of your watch. To skip a slide simply.

What is a machining Process? Machining is the manufacturing process by which parts can be produced to the desired dimensions and surface finish from a.

CHAPTER 33 Drum Brake Systems.

Cutting and Swaging Tubing

Safety Rules for 9 th Grade Shop Radial Arm Saw: Safety Rules Never cut a board that is less than 12 inches long. Always pull the saw using the handle;

994 2½ ”- 10”. Modification Overview  Production for the 994 began in 1999 and is current.

POWER TOOLS Electric drills

PHSAUTOMOTIVESALSPHSAUTOMOTIVESALS DISC BRAKE OVERHAUL.

General Tools DescriptionsUseAbuse. Hand Tools Hand tools have a variety of uses in the shop, each has it’s own specific design. Hand tools have a variety.

Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display. PowerPoint to accompany Krar Gill Smid Technology of Machine.

Surfacer. General Safety Wear your safety glasses at all times Take off all jewelry Do not wear loose clothing Make sure you are the only person in the.

Metal Tools. 3. Aviation Snips Aviation Snips Cutting sheet metal Handle may be red, yellow or green.

Main Parts of a Drilling Machine

This is what we want to create Add component and fix in place Add component and make it spin (Get propeller from the CD or use skills from previous tutorials.

© Goodheart-Willcox Co., Inc.. Compressed Air  Air compressor provides compressed air  Turns on and off automatically to maintain a preset pressure.

Machine Safety Rules. Miter Saw Instructor must be present when you are using this machine. Keep wood flat and against fence Hold down wood Do not remove.

How To: Replace an LTR- 450R Suzuki Fuel Filter By Goigen (#11)

774X DCDA 21/2”, 6”, 8” 774X DCDA 21/2”, 6”, 8”. Modification Overview  Production began in  The 2 ½” 774X DCDA was discontinued in  The.

Assembly Instructions:

Teknologi Dan Rekayasa

Unit 13 Ag Mechanics Fastening metal.

774X 21/2”, 6”, 8”.

Threads and Threading.

2000SS 2½”-12”.

Brake System Diagnosis and Repair

Lathe The size of the lathe is determined by the distance from the live center to dead center. We have a 24” lathe. Dead Center Live Center.

Servicing a Swiss calendar watch with sweep second hand

Lathe Flow Diagram Isolate power Isolate power Isolate power

774 DCDA 21/2”-12”.

5000SS 21/2”- 6”.

2000SS 2½”-12”.

774 2½”-12”.

3000SE 21/2”, 6”, 8”.

Nomenclature Fork slot Fork slot corner Beak Pivot Pallet staff

450DA 4”-10”.

Presentation transcript:

How balance staffs are replaced Ken Pell

Components of balance assembly Wheel (split or solid) Staff (riveted or friction) Hairspring (flat or overcoil) Roller (single or double)

Balance wheel Roller Hairspring

Wheel Roller and Jewel Staff

Roller Hub Hairspring Hub Pivot Wheel Hub

Why they must be replaced Trauma, such as dropping or bumping watch which damages the staff and jewels

Broken Pivot

Pre staffing Clean movement Examine and replace balance jewels Identify movement early and secure new staff

Good Hole Jewel

Cracked Hole Jewel

Chipped hole jewel

Selecting replacement staff Determine grade of watch Use Elgin reference for staff number Order staff Verify measurements

Make a new staff? Not necessary 99% of time Need expertise on lathe Outsourcing is possible

Take measurements Hairspring hub Roller hub Pivots

Compare old to new Old staff New Staff Pivot Hairspring Roller Wheel

Modify if needed Reduce diameter of hubs using lathe. Choose another staff

Steps Remove hairspring Remove roller Remove balance wheel

Mark the postion of the stud

Mark Position Of collet

Mark position Of roller jewel

Remove wheel from staff Place staff in hole of table with wheel resting on the table. Push or tap staff out

Wheel is resting On table

Restaffing Place staff with roller side down in staking set. Choose appropriate round face and flat face punches. Place wheel over staff Rivet

Use round face first, then flat Turn punch while tapping Always use brass hammer Test In lathe

Replace roller Place on punch with hairspring side down “Three quarter” test Make sure jewel clears punch Tap or press on

Roller sits 3/4 th down