DR 372111, Safety & Operating Instructions Manual

Page: 18 / 44

18 3-POINT HITCH
DR
® SELF-FEEDING™ CHIPPER
Never throw remaining stubs or knots into the chipper hopper; damage will result.

Your DR SELF-FEEDING CHIPPER can process dry or green wood up to 4.75" in diameter.

The Chipper will self-feed the wood once it contacts the knife edge so forcing the branches into the Hopper is not
necessary if the knife is sharp.

Green wood will process quicker and easier than dry wood.

Softwood processes easier than hardwood.

Your operator experience will teach you how different types of wood will chip and how fast you can process them.

When chipping branches, sometimes a tail will develop 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 DR SELF-FEEDING CHIPPER finishes processing material in the Hopper before disengaging the PTO
and shutting the Tractor engine off.

Do not force material into the Chipper. If the machine does not chip well, the Chipper Knife may need sharpening or
replacement, or the gap between the Knife and the Wear Plate needs adjusting. See “Removing, Replacing and
Adjusting the Chipper Knife and Wear Plate” in Chapter 5.

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.

Cut the material to be chipped into manageable lengths of no more than five or six feet long before chipping them.

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.