Dremel A679-02 User manual

Lawn Mower and Garden Tool Sharpener Model 675

Use for sharpening rotary lawn mower blades.

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WARNING

Attachment for use with Dremel Rotary Tool Models 100, 200, 300, 400, 4000, 770
800, 275, 285, 395, 398 & 8200.

To reduce the risk of injury, user must read and understand the tool
instruction manual and this instruction sheet.

Lawn Mower and Garden Tool Sharpener Installation

1. Unscrew the housing cap from the tool. Replace collet nut. See figure 1.

2. Insert a new or newly dressed Dremel #932 Aluminum Oxide Grinding Stone all the
way into the collet and tighten the collet nut. The bit must be inserted far enough
into the collet so that the tip does not touch the attachment. See figure 2.

3. Screw the lawn mower or garden tool sharpener attachment onto the Dremel
Rotary Tool housing. See figure 3 & 4.

!

WARNING

Use only Dremel #932 sharpening stone with this attachment. Other
stones may not fit attachment or be properly sized or speed rated.

Lawn Mower and Garden Tool Sharpener Operation

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WARNING

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WARNING

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WARNING

Sharpen Blade

Place removed blade into a vise or clamp. Position sharpener attachment over the beveled
edge of the blade, keeping at the angle of the guide following the angle of the existing
beveled edge. Turn on rotary tool and pass over each end of the blade an equal number of
times, at the same speed and pressure to keep the blade in balance until edge is sharp.

!

WARNING

Consult your lawn mower owner’s manual for blade maintenance, blade
removal, and reinstallation instructions. Cracks in blade body or
improper blade removal and reinstallation may lead to serious injury.

Inspect the blade for cracks or missing sections.

Replace blade if found cracked or damaged. Cracked or damaged blades
can break apart under operation.

Wear eye protection, gloves, and a dust mask.

The operation of any power tool can result in foreign objects being thrown
into the eyes which can result in eye damage. Lawn mower blades have
sharp edges which can lacerate hands. Grinding operations generate
particles which can be inhaled.

Stone grabbing on the blade corner can kick back and cause loss
of control.

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!

WARNING

Stone grabbing on the blade corner can kick back and cause loss
of control.

GARDEN TOOL

SHARPENER

Balance Blade

Drive a nail into a beam or wall. Leave about one inch of straight nail exposed. Place the
center hole of the blade over the head of the nail with the blade in a horizontal position. If the
blade is balanced, it should remain in a horizontal position. If one side of the blade moves
downward, use the grinding stone (without the guide) to remove small amounts of material
from the very end of that side of the blade. Remove just enough material from the end to
bring the blade to a balanced stop on the nail.

Sharpening other Garden Tools

The sharpener attachment may be used to sharpen other non-motorized lawn and garden
tools such as shovels, hoes and pruning shears that will fit in the guide. Position sharpener
attachment over beveled edge of tool to be sharpened. Following the angle of the existing
beveled edge with the angle of the guide, pass over the edge of the garden tool at an even
speed and pressure until it's sharp.

LAWN MOWER

SHARPENER

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Your new chain saw sharpening attachment kit will fit on Dremel rotary tool
models 275, 285, 395, 398, 850 and 780. When attached to a Dremel rotary
tool, the Chain Saw Sharpening attachment will sharpen nearly all popular
sizes of chain if you follow these simple instructions.

ASSEMBLY OF CHAIN SAW SHARPENING ATTACHMENT

Because there are different sizes and types of chains used on different saws,
your new sharpener must be assembled to suit your particular chain. To do
this:

1. First determine the size and pitch of your saw chain. Refer to your chain
saw owner’s manual, your chain saw instruction manual or contact the chain
manufacturer for this information.

2. Refer to the chart below for the correct grinding stone.

3. When you have determined the correct grinding stone for your chain from
the chart, assemble attachment by screwing the guide (B) and appropriate
number of spacers (C) to the clamp (D) using the two screws (A), as shown
in figure 1.

• If using the 7/32" diameter (pink) grinding stone, assemble both spacers
between the guide and the clamp.

• If using the 3/16" diameter (orange) grinding stone, assemble with only one
spacer between the guide and the clamp.

• If using the 5/32" diameter (blue) grinding stone, no spacers are needed.

4. Securely mount the correct grinding stone in your tool with approximately
1/4" of the shank exposed between the chuck cap and the stone (Figure 2).
Use the rotary tool wrench to securely tighten the chuck cap.

5. Remove the housing cap from your rotary tool and screw on the chain saw
sharpening attachment (Figure 3).

6. Using the appropriate side of the gauge (E) (see above chart), check to see
if the guide (B) is properly positioned in respect to the grinding stone (F). The
gauge must be flush with the corner (G) of the guide while making contact with
the grinding stone (Figure 4).

If the guide is not properly positioned, use a screwdriver (the end of the gauge
has a screwdriver (H) on it) to loosen the two guide mounting screws (A)
enough so the guide can be moved (I). It has elongated holes to allow for
adjustment. Using the appropriate side of the gauge, adjust the guide so it is
properly positioned in respect to the grinding stone and tighten the screws.

SHARPENING THE CHAIN

1. Set your saw on a flat, solid surface so it will not slip while you are sharp­ening the chain. The chain tension should be adjusted as specified in the
Chain Saw Owner’s Manual. If it is too loose, the teeth will move, resulting in
a poor sharpening job.

Sharpening will be best accomplished if done on the flat of the saw bar –
somewhere near the middle of the bar.

2. The saw should first be positioned so that you are looking at the side of the
chain bar with the motor to your right. Cutter teeth on the far side of the chain
are sharpened, from inside to outside, or away from you, as shown in Figure

5. The guide (B) should be laid flat on the tooth with the 30º index line (L) par­allel with the chain. This index line should be aligned by eye with the chain.

Two or three light strokes are usually enough unless the cutters have been
damaged. Sharpen all cutters equal. Start with the cutter with the most visual
damage (i.e. nicks or gouges) and sharpen all cutters back equally. Do not
remove excessive material as this only shortens the life of the chain.

Note: Sharpen cutter teeth (J) only, not the depth gauge (K).

3. When all of the teeth on the top of the bar have been sharpened, advance
the chain using a glove or a rag to protect your hand, by pulling the chain
toward the end of the bar. Repeat until all the teeth on the far side of the chain
have been sharpened.

4. Turn the saw around so that you are looking at the side of the chain bar with
the motor to your left. Sharpen the cutter teeth on the far side of the chain,
from inside to outside, or away from you, as shown in Figure 6. The guide
should be laid flat on the tooth with the 30º index line parallel with the chain.

Repeat the process above to sharpen all of the cutter teeth on the far side of
the chain.

5. After your chain has been sharpened a number of times, you may find that
it does not cut as fast as you feel it should. Each cutter on your chain has a
depth gauge (K) just ahead of the cutting edge (J) that determines how big a
bite it can take. To check for proper depth of the cut, lay a metal straight edge
across the tops of the cutting edges, as shown in Figure 7, and check the
dimension indicated. This dimension should be approximately equal to the
thickness of the gauge furnished with your chain saw sharpening kit. If it is
not, file or grind the chain depth gauge until the clearance is approximately
equal to the thickness of the sharpening kit gauge. Be careful to maintain its
shape. Do not remove more material than necessary or you will overload your
saw. Also, be careful to keep this depth gauge setting uniform on all cutter
teeth or you will not be able to make a straight cut.

CODE NO. PART NO. DESCRIPTION

1 1453 Sharpening Attachment, Complete

2 990869 Gauge & 2 Spacers

3 453 5/32" Grinding Wheel, Blue

4 454 3/16" Grinding Wheel, Orange

5 455 7/32" Grinding Wheel, Pink

ORDERING INFORMATION - refer to figure 8.

Chain Saw Sharpening Attachment Kit

Owner’s Manual - Model 1453

Read and understand these instructions and the chain saw manual for complete details for sharpening and use of the chain saw. Failure to follow all
instructions and warnings may lead to injury.

WARNING

!

Disconnect electrical plug or
spark plug lead from the power

source. Accidental start up could cause serious per-

sonal injury.

Wear eye protection and dust
mask. Grinding action will cause

dust and sparks.

Teeth of chain must be sharpened
equally and evenly. Uneven teeth

can cause the saw to kickback and excessive wear to
the bar.

CHAIN SAW SHARPENING WARNINGS

WARNING

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WARNING

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WARNING

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WRITE FOR CURRENT PRICES - NO C.O.D.'S

2

3

4

5

1

Grinding Grinding Grinding
Chain Wheel Size Wheel Wheel Guide
Size / Pitch (Diameter) Color Catalog No. Gauge

1/4" PITCH 5/32" Blue 453 Side 1

3/8" PITCH 7/32" Pink 455 Side 1

3/8" PITCH LOW PROFILE (LP) 5/32" Blue 453 Side 1

.325" PITCH 3/16" Orange 454 Side 1

2610913947 5/01 PRINTED IN U.S.A.

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Fig. 1

2

3

4

5

1

B

A

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C

Fig. 2

Fig. 3

1/4"

Fig. 4

B

A

Side 1

I

A

E

H

F

G

VIEW: looking down at the tip of the tool with guide
mounting screws to the left.

VUE vers la pointe de l’outil avec les vis de montage

D

HOUSING CAP

CAPUCHON DU BOÎTIER

TAPA DE LA CARCASA

du guide à gauche
VISTA: Mirando hacia abajo, hacia la punta de la her-

ramienta, con los tornillos de montaje de la guía ubi­cados a la izquierda.

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30º

30º

Fig. 5

WARNING

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source. Accidental start up could cause serious per­sonal injury.

Fig. 7

Disconnect electrical plug or
spark plug lead from the power

K

B

L

J

J

SAW MOTOR

MOTEUR DE LA

TRONÇONNEUSE

MOTOR DE LA

SIERRA

!

AVERTISSEMENT

Débranchez la prise ou le fil
de bougie. Tout démarrage

MOTEUR DE LA

TRONÇONNEUSE

Fig. 6

SAW MOTOR

MOTOR DE LA

SIERRA

intempestif risque de causer des blessures corporelles
graves.

K

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ADVERTENCIA

30º

30º

Desconecte de la fuente de ali­mentación el enchufe eléctrico

L

B

o el hilo de conexión de la bujía. Un arranque acci­dental podría causar lesiones personales graves.

CHECK THIS DIMENSION

CONTRÔLEZ CETTE COTE

COMPRUEBE ESTA DIMENSIÓN

J

K

Fig. 8