Magna-matic MAG-8000, MAG-9000 User Manual
OPERATING INSTRUCTIONS
For Magna-Matic Sharpeners
Covering Models:
MAG-8000 Universal Lawn Mower Blade Sharpener
MAG-9000 Lawn Mower Blade Sharpener
Visit us at www.magna-matic.com for more photos
of products & other helpful info.
Helping you get the most
out of your shop for the last 40 years.
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THE SAFE WAY IS THE
ONLY WAY TO GRIND!
Instructions given with this symbol are for personal safety. Be
sure you and your employees follow them. A careful operator
is the best insurance against accidents.
Before handling any equipment read and understand the
instructions.
When using electric tools, basic safety
precautions should always be followed to
WARNING
1. Grounding Instructions - This tool must be grounded
while in use to protect the operator from electric shock. The
tool is equipped with an approved three conductor cord and
three prong grounding type plug to t the proper grounding
type receptacle. The green (or green and yellow) wire is the
grounding wire.
2. Extension Cords - Use only three wire extension cords
which have three prong grounding type plugs and three pole
receptacles which accepts the tool’s plug. Replace or repair
damaged cords.
reduce the risk of re, electric shock, and
personal injury including the following.
3. Keep Work Area Clean - Cluttered areas and benches
invite accidents.
4. Consider Working Environment - Don’t use power tools
in damp or wet locations. Keep work area well lit. Don’t
expose power tools to rain. Do not use tool in presence of
ammable liquids or gases.
5. Keep Children Away - All visitors should be kept a safe
distance form the work area. Do not let visitors have contact
with the tool or the extension cord.
6. Store Idle Tools - When not in use, tools should be stored
in dry, high or locked-up places out of reach of children.
7. Don’t Force Tool - It will do the job better and safer at the
rate for which it was designed.
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8. Don’t Over-Reach - Keep proper footing and balance at all
times.
9. Wear Proper Apparel - Do not wear loose clothing or jewelry that can get caught in moving parts. Rubber gloves and
non-skid foot wear are recommended when working outdoors.
Wear protective hair covering to contain long hair.
10. Use Safety Glasses - Also face or dust mask-wrap
around goggles, or other eye protection.
11. Don’t Abuse Cord - Never carry tool by cord or yank it
to disconnect from receptacle. Keep cord from heat, oil, and
sharp edges.
12. Disconnect Tool - When not in use; before servicing;
when changing grinding wheel.
13. Avoid Accidental Starting - Don’t carry plugged in tool.
Be sure switch is off when plugging in.
14. Grinding Wheels - Use only grinding wheels having a
maximum operating speed of 5500 RPM. KEEP GUARDS IN
PLACE.
15. Guard Against Electrical Shock - Prevent body contact
with grounded surface. For example: pipes, radiators, etc.
16. Stay Alert - Watch what you are doing. Use common
sense. Do not operate tool when you are tired, or under the
inuence of any drugs or alcohol.
17. Check Damaged Parts - Before further use of the tool,
a guard or other part that is damaged should be carefully
checked to determine that it will operate properly and perform
its intended function. Check for alignment of moving parts,
breakage of parts, mounting and any other condition that effect
its operation. All parts should be properly repaired or replaced.
Do not use this tool if the switch does not turn it on or off.
18. Never Leave Tool Unattended - Turn the power off.
Don’t leave the tool until it comes to a complete stop.
19. Replace Cracked Wheels Immediately.
20. Read - the enclosed A Primer on Grinding Wheel
Safety (NORTON® Publication)
21. Never attach the provided spanner wrench ,arbor
wrench, or any other object to the grinder.
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Model Descriptions
If you have further questions or do not understand any of the
instructions please contact us! We are happy to give any needed
extra explanation. Thank you for your purchase of MAGNAMATIC high-performance service tools.
MAG-8000 Universal Lawn Mower Blade Sharpener
The MAG-8000 is the latest technology in rotary lawn mower blade
sharpening. It holds 3 patents for its revolutionary design. Since its
release in 1999 the MAG-8000 has quickly become the standard in
the Outdoor Power Equipment Industry. The MAG-8000 is designed to
sharpen almost all lawn mower blades, conventional blades (straight
at cutting edges) and mulching blades (curved cutting edges.)
Instructions
begin on page 4
MAG-9000 Lawn Mower Blade Sharpener
The MAG-9000 is a solid low cost solution in rotary lawn mower blade
sharpening. It provides you with 60 second per blade sharpening per-
formance in a small package. Since its release in 1987 the MAG-9000
has become a best friend of lawn care professionals The MAG-9000 is
designed to be a compact sharpener for conventional blades (straight
at cutting edges).
Instructions begin
on page 16
3
Begin The Assembly
Step 1: MAG-8000
Unpack the MAG-8000, please keep the box and packaging incase of shipping damage or any need for return. When
unpacking the MAG-8000 take stock of all the items in the box.
Parts Inventory
Qty Description Key #
1 Grit Guard 1
1 Sharpener Body 2
1 Crank Handle 3
1 Motor Side Lexan® Guard 4
1 Grinding Wheel (1/2” wide) 5
1 Grinding Wheels (1” wide) 6
1 Arbor Wrench 7
1 Spanner Wrench 8
1 Mobile Work Table 9
4
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MAG-8000 Assembly
Step 2:
First remove the TRANSPORT BRACKET from the
MAG-8000 arbor, keep
the transport bracket
for any future shipping
needs. You will need to
remove the black bolting bar to allow clearance for the transport
bracket to be removed.
Use the spanner wrench
if needed to remove the
arbor nut. Assemble the
crank handle, align the
set screw to the milled
at on the threaded adjustment rod, and use the Bondhus 1/8”
wrench to tighten the set screw.
Step 3:
Mount a grinding
wheel to the MAG-
8000 arbor. One inch
wide wheels are best
used with conventional
lawn mower blades,
and the half-inch wide
wheels are required
for mulching blades.
NOTE: when mounting
the half-inch grind-
ing wheel the ARBOR
SPACER is required.
The ARBOR SPACER is
NOT required for 1 inch wide wheels. See above diagram.
5
MAG-8000 Assembly Con’t
Step 4:
Assemble the grit guard to the MAG-8000 using the bolts found
on the grit guard. Do not tighten the Lexan® windows on the
grit guard (they will be tightened in a later step).
Assemble Motor Side Lexan® Guard to the MAG-8000. The
motor side Lexan® guard will slide behind the grit guard
Lexan® window - slide it forward to clear the motor capacitors
- then align the holes and fasten the guard to the bolting bars.
Raising or lowering the motor with the angle adjustment crank
will provide more clearance. Use the hardware in the holes and
the Bondhus T-handle wrench. Be sure to tighten 3 bolts under
the MAG-8000, and the 6 along the top to secure the bolting
bars holding the Lexan® guard. Lastly tighten the grit guard’s
Lexan® windows.
Step 5:
Testing the unit, be sure the grinding wheel moves freely.
Ensure the MAG-8000 ON/OFF switch is in the OFF POSITION,
plug the MAG-8000 into a 20 amp, 110 volt outlet. Switch the
ON/OFF switch to the ON POSITION to test the motor. The
motor should achieve FULL speed in 1-2 seconds. If it does
not, see page 13, or contact MAGNA-MATIC (800-328-1110).
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MAG-8000 Use
Step 6: Mulching Blades
Be sure to wear protective clothing before handling and
sharpening lawn mower blades. Wear safety glasses and
protective gloves.
Blade & Sharpener Preparation
1. Clean the blade to its base material, using the MAG-12000
blade cleaner, or alternate cleaning process.
2. Check the straightness with the gauge rod of the MAG1000 blade balancer. (Never straighten bent blades!)
3. Obtain a balance reading from the MAG-1000 to indicate the
light end of the lawn mower blade. Once the light end
is sharpened, it is complete. The heavy end is used to
remove material for balance. SEE MAG-1000 Instruction
Manual for more info on blade balancing.
4. The MAG-8000 will require the 1/2” inch wide grinding wheel
to sharpen a mulching blade. Mount the 1/2” wide grinding wheel on the MAG-8000. (Arbor spacer req.)
5. The xed 1/2” wide curved metal work table will be needed
to sharpen a mulching blade, remove the clamp-able mo-
bile work table.
6. Lower the grinding wheel with the adjustment crank, stop
just before you grind the corner of the work table. When
the grinding wheel is almost touching the corner of the
work table (curved or mobile work tables) you will produce
a 30 degree angle on the lawn mower blade. (see page 8)
Mulching Blade Sharpening
7. Switch the ON/OFF switch to the ON position.
8. Place the mulching blade in the MAG-8000 starting at
the inside of the edge (closest to the mounting hole), and
pull the blade across the grinding wheel (perpendicular to
the rotation of the grinding wheel, see page 10.) Keep
rm pressure downward on the blade to maintain contact
with the rounded surface of the work table. Allow the
work table to follow the contours of the mulching blade.
Take one pass at a time. Use even pressure into the
grinding wheel to achieve an even stream of sparks.
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MAG-8000 Use Con’t
Step 6: Con’t
9. When using the MAG-8000 for mulching blades keep the
blade level, and perpendicular to the rotation of the grind-
ing wheel. Pay close attention to the TIP of the blade, see
page 25.
This view of the MAG-8000
(with the grit guard removed
for visibility) you are able
to see how the curved edge
mulching blade should follow
over the rounded work table.
Contact between the blade
and work table must be maintained
Adjusting the Edge Angle
Applies to both MAG-8000 and MAG-9000
30 Degree Reference Point - When the grinding wheel
is lowered to the work table (almost cutting the work table
corner) you will produce a 30 degree angle on the lawn mower
blade. As the grinding wheel wears and reduces in diameter,
continue to lower the grinding wheel to almost touch the work
table to maintain a consistent 30 degree edge angle on a blade.
The edge angle can be varied plus or minus the 30 degree
reference point via the adjusting crank. Lowering the grinding wheel into the work table (grinding into the work table)
will result in a greater than 30 degree angle (a steeper angle.)
Note, you will be creating a new angle reference point Raising
the grinding wheel will result in a lesser than 30 degree angle
(a more shallow angle.)
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