30SG OPERATOR’S MANUAL 4/23/19 Page 17 of 23
STUMP GRINDING PROCEDURE
1.
Raise the cutter head and move the machine into position to cut. Position the machine so the cut head
can swing across near the edge of the stump.
2.
Have engine at full throttle (throttle lever forward).
3.
Start cutter wheel.
4.
Using the cutter head control lever, slowly swing the cutter wheel across the edge of the stump. Adjust
cut depth and swing speed to prevent the engine from bogging and to prevent cutter wheel stall.
5.
After the swing is complete, move the cutter wheel down a few inches, and repeat the cutter wheel
swing.
6.
Continue making a series of cuts down the edge of the stump until the edge is cut to below ground level
or the teeth are cutting at a depth below half the wheel radius.
7.
Depending on the diameter of the stump it may be necessary to move the stump grinder. After cutting
the first edge move the machine forward and repeat the grinding procedure until the stump is
completely cut to below ground level.
GRINDING TIPS
Clear the work area of debris, branches and rocks.
Operate the cutter with engine at full throttle.
Listen to engine speed and watch cutter wheel speed. Adjust swing speed and cut depth to maintain high
engine and cutter speed. Avoid bogging the engine and stalling cutter wheel.
It is more efficient to cut the edge of the stump, rather than cutting a wide area. Once the teeth are cutting at
a depth below half the wheel radius, lift the cutter and move the machine forward to begin cutting a new
edge.
SHUT DOWN PROCEDURE
1. Always leave machine parked on a level surface.
WARNING
: Do not park on incline. Move the machine to a level surface
and set the parking brake located behind the left hand track motor, near decal
shown. Move the handle down to engage the brake.
2.
Unless loaded on a trailer, lower the cutter head to the ground.
3.
Reduce the ENGINE THROTTLE to idle.
4.
Move the IGNITION KEYED SWITCH to the OFF position to stop the engine,
and remove the key.
5.
Close the FUEL SHUTOFF VALVE.
Shut off engine and allow it to cool before refueling.
WARNING
: Fuel fumes can catch fire or explode. Do not smoke or allow flames or sparks in the
area.
Do not touch the engine, muffler, or any of the hydraulic components until cool.
WARNING
: Muffler and engine get hot enough to cause serious burns. For
the safety of yourself and others, allow enough time for the engine, muffler,
and the hydraulic fluid to cool completely before performing any cleaning or
maintenance.
