PowerTek 12-13 Manual

12-13 HORIZONTAL/RIGID POWERTEK
Models 12-13, 12-11, &12-13P Stump Grinders
Operation & Maintenance Manual
PowerTek Inc.
P.O. Box 3
Lebanon, In. 46052
1-877-769-7835
3-14-08

TABLE OF CONTENTS POWERTEK
TABLE OF CONTENTS
WARNINGS SAFETY...........…...............................................……………………………….2-3
HOW TO USE YOUR STUMP GRINDER…………...................………....………………….4
WORK ZONE............................……………….……………………………….………………..5
INITIAL INSPECTION...........................................................………………………………….6
TRANSPORTATION & SET-UP......................………….………………………..................6-7
OPERATION.....................................................................…………………….….………….7-10
STARTING............................................................................……………………………………7
GRINDING STUMPS..........................................................…………………...………………..8
ADJUSTABLE HANDLE FREIGHT....................................................…………………….…8
DIRECTIONAL CONTROL…………….......................………….........................….………...9
STOPPING......................…………………………………………………….…………………10
MAINTENANCE...............................................................……………………….………......9-11
ENGINE.......................................................…………………………….………………….….....9
FUEL....................................................................................………………………………….......9
BELTS.......................................................................................…………………....…………......9
CUTTER BELT REPLACEMENT...................................................…………...……………...9
SHARPENING CUTTERS............................................................…………………………….10
REPLACING CUTTERS...................................................................…………….…………...11
TOOTH GAUGE......................................................……………........…………………..….…11
CUTTER WHEEL BEARINGS..........................................................…………….………….11
MAINTENANCE SCHEDULE........................................................……………………..…...12
BRAKE ADJUSTMENT………………………………………………………………………12
EXPLODED VIEW 12/13……………….............................................……………………….13
PARTS LIST 12/13………………..........................…………………………….…………......14
WARRANTY INFORMATION.................................................………………….……….15-16
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WARNINGS POWERTEK
! WARNING
WARNING TO PURCHASERS OF INTERNAL COMBUSTION ENGINE EQUIPPED MACHINERY
OR DEVICES IN THE STATE OF CALIFORNIA:
The equipment that you have purchased does not have a spark arrester muffler. If this equipment is to be
used on any forest or brush covered land or grass covered un-improved land in the State of California, the
law requires that a spark arrester muffler be installed and be in effective working order. The spark arrester
must be attached to the exhaust system and comply with Section 4442 of the California Public Resource
Code.
The engine exhaust from this equipment contains chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm.
! WARNING
This manual contains vital information for the safe use and efficient operation of this equipment.
Carefully read this operation maintenance manual before using this equipment, as failure to adhere to the
instructions could result in death, serious bodily injury and/or property damage.
The Stump Grinder is to be used only for grinding tree stumps. Using this machinery for any other
purpose may cause injury and or property damage. Improper use of the grinder will void the
warranty.
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SAFETY POWERTEK
1. Read the entire owner's manual carefully before operating the stump
grinder. Also, read the entire Engine Operator's Handbook. Familiarize
yourself with the, proper use of the Stump Grinder. Know the controls and
how to stop quickly.
2. Do not allow children to operate the stump grinder. Do not allow adults to
operate the stump grinder without proper instruction- Do, not allow anyone to
operate the stump grinder who is not acquainted with the Safety Instructions.
3. Be especially watchful of children and pets darting into the operating area
and/or danger zone.
4. Wear protective clothing-long pants and heavy work boots as well as ear
and eye protection while operating the Stump Grinder.
5. Keep your mind and eyes on the machine while operating it. Do not let others
distract you.
6. Check the stump grinder for any loose parts before operating.
7. Never place hands or feet anywhere near the cutter blade. The blade is larger
than it appears when it is operating.
8. Make sure you are aware of the location of any pipes (water, gas, electrical,
etc.) above or below the ground.
9. Clear the work area of all foreign objects such as sticks, stones, wires, etc.
10. Never operate the unit without the safety guards in place and operating
properly. Keep equipment in good working condition.
11. Take all possible precautions when leaving unit unattended. Stop engine
and remove ignition key to prevent unauthorized use.
12. When refueling machine: shut off engine, do not smoke or allow any hot or
burning material near.
13. Before removing or replacing teeth or belts, or before performing any
maintenance: shut off engine and wait for all moving parts to stop,
disconnect spark plug wire' and remove key.
14. Stability: The stump grinder has a narrow wheelbase and can become unstable
under adverse conditions. Always go straight up or down on steep hills.
Avoid steep side angles. When grinding avoid dropping one wheel into a
Hole to avoid a side tip of the unit.
15. When stump grinder is being transported on a trailer or in a truck, make sure
the machine is securely fastened to prevent property damage.

STUMP GRINDER USAGE POWERTEK
BEFORE YOU CUT:
Before you start to grind the stump, remove all debris-dirt, rocks, metal, and loose wood-
from around the area of the stump before the first cut. Be sure to remove any debris that may also
be embedded in the tree stump itself. Debris can wear or damage the cutting teeth and can be a
safety hazard. If the teeth meet these foreign objects, the stump cutter can propel these objects
great distances.
Before you start the machine, become familiar with all of the controls on the stump
grinder. Locate the key switch, throttle, choke, presence handle, and brakes. Check to see if the
debris curtains and guarding are in place to help reduce flying objects. Take time to read all the
decals and warnings that are on the machine. Read the operation and maintenance manual, it will
give you information that can save you time as well as prevent serious injury.
Make sure the teeth on the cutter wheel are in good shape. Inspect them for sharpness,
freedom from nicks, and damage. Teeth can wear down quickly causing performance problems
as well as lost productivity.
When you are finished, lift the cutter wheel from the stump before shutting the engine off.
OPERATION:
The type of wood will determine how much to cut at one time. Softer woods such as
pines or firs are easier to remove than harder woods such as elm, oak, ash or maple. For harder
wood, take shallow cuts. Cutting harder woods will dull teeth faster, therefore, be prepared by
having an extra set of teeth available.
If the stump is on a hill, level the area where the stump grinder will be setting. If grinding
is attempted without leveling, the stump grinder could tip over.
Do not take large cuts. The recommendation is to take 1/2-inch deep cuts and then sweep
side to side. Cuts deeper will not only slow productivity but could cause damage to the machine
as well as personnel injury. Also, start at the front of the stump and work toward the center. If the
stump is very large, it may be necessary to work from more than one side.
When grinding you may go as low as 10 inches below ground level. Make sure to clear
away all dirt, rocks, and debris before you continue to grind.
SAFETY TIPS:
The stump grinder is a powerful machine and can throw debris. Be prepared by wearing
protective clothing such as gloves, ear protection, eye protection, long pants, and heavy boots.
Never leave the operating position while the machine is engaged in a stump.
Make sure there is no one near the machine while it is in use. Use signs and/or barricades
to restrict pedestrian traffic around the danger zone. Keep all children away from the stump
grinder and the work area.
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