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Until recent years Vulcan Pile Extractors utilized a Steel Spring and Spring Guide in the Cylinder head as shown below:

To convert older Extractors to the new configuration which replaces the Spring and Spring Guide with a Rubber Bumper the procedure is as follows:

  1. Drill through at "A" 1 1/2" diameter.
  2. Remove Spring Guide and discard.
  3. Tap hole for 1 1/4" NPT.
  4. Insert countersunk Pipe Plug 1 1/4" size.
  5. Install Bumper as shown.
Driven Pile Manual Volume 1a
Driven Pile Manual 1b
Driven Pile Manual 2