Department of Labor Seal photos representing the workforce - digital imagery© copyright 2001 photodisc, inc.
Department of Labor Seal www.osha.gov   [skip navigational links] Search    Advanced Search | A-Z Index
Home
Standards
Glossary
User Guide
The Back Cut
The back cut is the third and final cut and is made on the opposite side of the notch.  The back cut disconnects almost all of the tree from the stump leaving a hinge that helps to control the tree's fall.
The Correct Cut
1. Starting Point
Important - begin on the opposite side of the notch at the same level as the notched corner
2. Angle of Attack
Important - cut flat along a horizontal plane
3. Ending Point
Very important - stop at the point that will leave a hinge width that is 1/10 the tree's diameter
Diagram of Correct Back Cut with Starting Point, Angle of Attack, and Ending Point
This is the simplest of all back cuts.  Other back-cutting techniques may be required for felling difficult trees.
Diagram of cross-section
A Common Incorrect Cut
 
Bad cut with back cut higher than notched corner
Here the starting point of the back cut is higher than the notched corner . . .
Line 1
. . . resulting in a poor hinge.
More Incorrect Back Cuts
Continue with Lesson 4 Click on Arrow to Continue with Lesson 4

Back to Top Back to Top www.osha.gov www.dol.gov

Contact Us | Freedom of Information Act | Customer Survey
Privacy and Security Statement | Disclaimers
Occupational Safety & Health Administration
200 Constitution Avenue, NW
Washington, DC 20210