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STARTUP
Before you begin, make sure the tractor is turned off and
the PTO drive is disengaged.
Stand to the side of the stump grinder and observe the
center point on the bottom of the cutting wheel. Now sit
on the tractor seat and observe the center point again.
This point will appear different depending on where you
are positioned. This can be very deceiving! Familiarize
yourself with the view of the stump grinder from the
tractor seat.
Test all operating functions in an open area with the
tractor at idle speed to get a feel for the controls. Take
your time.
Start with a small stump. Make the first pass then disen-
gage the PTO drive and get off the tractor to see how
much you have removed.
Get off the tractor after each pass to check the progress.
The cutting wheel is shielded from view when sitting on
the tractor seat so it is difficult to accurately determine
the progress. The ability to judge the positioning improves
with practice. Do not expect to get the first stump done
quickly.
Prevent equipment damage.Operation with
pto shaft at a severe angle (over 17°) may
result in equipment damage.Adjust top link
pto shaft is as straight as possible.
Always turn offthe tractor and disengage
the PTO drive before getting off the seat
and approaching the cutting wheel.
ƒ Reverse over a tree stump and lower the stump grinder
so it will remove 2" (50 mm) perpass. Always ensure
the grinder is cutting properly and not jumping around
erratically
ƒ Once the stump is at ground level, continue to take up
to 2" (50 mm) deep passes until the stump and roots
are 4-6" (100-150 mm) below grade. Keep a watch out
for foreign objects below the soil like rocks or buried
metal. These can damage or break the teeth resulting in
poor grinding performance.
ƒ During use, it is important to never let the stump grind-
er sway beyond an angle that will allow the PTO shaft to
separate. Do not operate the stump grinder with less
than 6" (150 mm) of overlap between the two halves of
the PTO shaft. If the stump grinder begins to sway, it
means either the tractor is advancing faster than the
grinder can remove material or that too much material
is being removed per pass. If this is observed, immedi-
ately stop moving forward and position the tractor and
stump grinder in a manner so that it is in the vertical
position. Take a slower pass and/or shallower cut if
necessary.
ƒ Attach tractor to stump grinder. See tractor Operator's
Manual.
ƒ Adjusting top link so that the driveshaft is straight in
the raised position will ensure that the driveshaft angle
is acceptable (17° or less) when the rotor is swung
back in the extreme cutting position.
FIRST TIME USER TIPS
17°
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