Damper Work
Simplified and codified

Damper work takes more technical skill than almost anything else in piano servicing. By learning Jim’s damper method, in a short time you can develop the skills needed to overcome your fear of damper work. Don’t let this part of piano work be something that you try to avoid at all costs!

Table of contents

Chapter 1 - Introduction

  • A: The “bottom line” in damper work
  • B: Tools Needed
  • C: Different approaches and why I do what I do

Chapter 2 - Naming the bends/using the tools

  • A: Naming the four bends
  • B: Before you start, three things you must keep in mind
  • C: Understanding and adjusting the “10 Essential points”

Chapter 3 - The traditional strip method

  • A: Using the “pitch raise” approach to quickly get the worst things working
  • B: An order for working

Chapter 4 - In-The-Home Remedial Work

  • A: Fixing Individual leaking dampers
  • B: Adjusting the pedals
  • C: Individual felt replacements
  • D: Going beyond the original design
  • E: Sticking underlever centers

Chapter 5 - Troubleshooting the underlever system

  • A: Checking/changing the pivot blocks
  • B: Checking the “Magic Line”, or line of convergence
  • C: Checking friction in the system

Chapter 6 - Re-setting the damper lift from the pedal

Chapter 7 - Replacing damper felt

  • A: All felt is not created equal
  • B: Removing old felt
  • C: Installing new felt

Chapter 8 - Replacing damper wires and heads

Chapter 9 - Replacing the underlever system with a new Renner system

Chapter 10 - Troubleshooting and “tricks of the trade”