4420 Manual Revisions
Date of Revision
September 9, 2006
November 7, 2006
April 12, 2007
June 25, 2007
March 18, 2008
October 22, 2008
Description of Revision
Updated Cable and Hook assembly drawings to reflect
engineering changes.
Updated Base assembly drawings and Hydraulic
schematics to reflect engineering changes
Updated Operation to reflect new 5-Function Hetronic
Remote. Updated decal kit drawing. Updated Control Kit
Assembly to reflect the new 5-Function Hetronic Remote.
Added the Hetronic Troubleshooting section.
Updated Main Cylinder assembly drawings to reflect
engineering changes.
Updated Mast assembly and Control Kit drawings to
reflect engineering changes.
Updated Hydraulic Kit Versions to reflect engineering
changes (New Pressure Switch).
Section Revised
Chapter 7:
Assembly Drawings
Chapter 7:
Assembly Drawings
Chapter 8:
Hydraulics-Electrical
Chapter 2: Operation
Chapter 5: Decals
Chapter 8:
Hydraulics-Electrical
Chapter 10:
Troubleshooting
Chapter 7:
Assembly Drawings
Chapter 7:
Assembly Drawings
Chapter 8:
Hydraulics-Electrical
Chapter 8:
Hydraulics-Electrical
Chapter 9:
Replacement Parts
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