Warranty Guide
Rev: 5 06/2016  Brush Master™ Chipper/Shredder with 2-Way Feed 
18 
T
Optimizing Chipper Perfor-
mance – Keep the Blade Sharp! 
During operation, if you notice any of the follow-
ing symptoms, your chipper blade probably 
needs to be sharpened: 
To remove and/or replace the blade, please follow 
the instructions in the owner’s manual. 
Since the blade is hardened steel, it should be sharp-
ened on a wet wheel, or by hand on a stone. (Avoid 
sharpening the blade using a grinder the way you 
would a lawn mower blade. If you do, the localized 
heat will cause the steel to lose its tempered edge and 
the blade will dull more quickly in use). While many 
customers are comfortable sharpening their own blade, 
most local service centers will sharpen your blade for a 
small fee. If you need assistance finding a service cen-
ter or with blade sharpening, please call the GXi cus-
tomer service team at 919-550-3221. 
1.  Chipper does not auto-feed 
2.  Chipper produces “chunks” or “sawdust” 
instead of “chips” 
3.  Chipper engine bogs down or labors 
4.  Smoke issues from the drive belt 
5.  Chipper jams or stops altogether 
For optimal chipping, you will need to sharpen and/
or replace your chipper’s blade frequently. Similar to 
the teeth of a chainsaw, your chipper blade requires 
frequent sharpening. We recommend that you check 
the blade for sharpness before each use and after eve-
ry 2-3 hours of operation. 
Some models contain a spare blade in the hardware 
bag. If you require additional blades, they can be pur-
chased from GXi customer service at 919-550-3221. 
As a rough guide, your chipper blade will require sharp-
ening after 4-8 hours of normal use when chipping 
harder woods such as maple or oak.  When chipping 
softer woods such as poplar and pine, the blade can 
last 10-20 hours before sharpening is required.  If you 
hit a foreign object such as a stone or nail or if you are 
processing limbs that have small amounts of sand or 
soil on them, you will need to sharpen the blade much 
more frequently.   
Operating the chipper with a sharp blade will 
extend the life of : 
1.  The blade because if a chipper blade becomes too 
dull, much of the blade itself will have to be re-
moved during the sharpening process. Frequent 
sharpening maintenance as needed is best. Occa-
sional, intensive sharpening will greatly diminish 
the life of the chipper blade. 
2.  The belt because as the blade becomes dull, the 
forces on the belt increase and belt wear is accel-
erated. 
3.  The chipper structure because if wood is forced 
into a chipper with a dull blade, the force can bend 
the feed chute, bend the blade carrousel and/or 
shear the bearing bolts. 
Maintenance and Storage 










