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Processing Material
• Your DR PRO XL520 CHIPPER-SHREDDER can process dry or green material.
• Green wood will process quicker and easier than dry wood.
• Softwood processes easier than hardwood.
• Your operator experience will teach you how different materials chip/shred and how fast you can process different
materials.
• It is best to trim off any side twigs from the main branch that you are chipping.
• When chipping branches, sometimes a tail will remain at the end of a branch. To avoid this, rotate the branch while
feeding it into the Chipper Hopper. Rotating the branch as you feed it into the machine will improve chipping
performance.
• Use caution with small diameter green saplings and branches less than 2" in diameter. Chip these grouped or bundled
together to provide support for each other. If the material is 2" or larger, feed only one at a time into the Chipper Hopper.
• Make sure the Shredding Chamber finishes processing material in the Hopper(s) before shutting the Engine off.
Using the Chipper Hopper
The Chipper Hopper is mounted on the side of the machine and is designed to chip the larger, heavier materials that the Shredder
Hopper isn’t designed to handle. The revolving Chipper Knife mounted on a Rotor turns branches fed into the Hopper into
“chips”. The Chipper can chip twigs and branches ranging in size from 1" to 5" in diameter. Cut your materials into manageable
lengths of no more than five or six feet long before feeding them into the Chipper Hopper.
• Feed the branch into Chipper Hopper keeping the branch at the same angle as the Chipper Hopper.
• As the branch becomes short and is at the outside edge of the Chipper Hopper, finish processing it by pushing it in with
the next branch.
• Do not force material into the Chipper. If the machine does not chip well, the Chipper Knife may need sharpening or
replaced, or the gap between the Knife and the Wear Plate needs adjusting.
• Extremely hard knots will not process very well. Push any short stubs that have not self-fed through the Chipper with the
next branch to be chipped.
• Overloading the Chipper Hopper will cause the rotor speed to decrease. If you hear the Engine RPM decreasing, stop
feeding material into the Chipper Hopper until the Engine has returned to full speed.
• NEVER allow processed material to build up within 3" of the Discharge opening. Move the PRO XL520 CHIPPER-
SHREDDER or the pile as needed. Failure to do so could result in unnecessary jamming of the machine.
• To move a pile of processed material, first shut off the Engine, and use a spade, rake, or long handle tool; NEVER use your
hands or feet!
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