Dremel 4200 Spécifications télécharger pdf (Page 16)

direction causes the cutting edge of the bit to climb out of the work and

pull the tool in the direction of this feed.

e. When using rotary files, cut-off wheels, high-speed cutters or

tungsten carbide cutters, always have the work securely clamped.

These wheels will grab if they become slightly canted in the groove,

and can kickback. When a cut-off wheel grabs, the wheel itself usually

breaks. When a rotary file, high-speed cutter or tungsten carbide cutter

grabs, it may jump from the groove and you could lose control of the tool.

SAFETY WARNINGS SPECIFIC FOR

GRINDING AND ABRASIVE CUTTING-OFF

OPERATIONS

a. Use only wheel types that are recommended for your power tool

and only for recommended applications. For example: do not grind

with the side of a cut-off wheel. Abrasive cut-off wheels are intended

for peripheral grinding, side forces applied to these wheels may cause

them to shatter.

b. For threaded abrasive cones and plugs use only undamaged

wheel mandrels with an unrelieved shoulder flange that are of

correct size and length. Proper mandrels will reduce the possibility of

breakage.

c. Do not "jam" a cut-off wheel or apply excessive pressure. Do not

attempt to make an excessive depth of cut. Overstressing the wheel

increases the loading and susceptibility to twisting or snagging of the

wheel in the cut and the possibility of kickback or wheel breakage.

d. Do not position your hand in line with and behind the rotating

wheel. When the wheel, at the point of operation, is moving away from

your hand, the possible kickback may propel the spinning wheel and the

power tool directly at you.

e. When wheel is pinched, snagged or when interrupting a cut

for any reason, switch off the power tool and hold the power tool

motionless until the wheel comes to a complete stop. Never attempt

to remove the cut-off wheel from the cut while the wheel is in

motion otherwise kickback may occur. Investigate and take corrective

action to eliminate the cause of wheel pinching or snagging.

f. Do not restart the cutting operation in the workpiece. Let the

wheel reach full speed and carefully re-enter the cut. The wheel may

bind, walk up or kickback if the power tool is restarted in the workpiece.

g. Support panels or any oversized workpiece to minimize the risk

of wheel pinching and kickback. Large workpieces tend to sag under

their own weight. Supports must be placed under the workpiece near

the line of cut and near the edge of the workpiece on both sides of the

wheel.

h. Use extra caution when making a "pocket cut" into existing walls

or other blind areas. The protruding wheel may cut gas or water pipes,

electrical wiring or objects that can cause kickback.

SAFETY WARNINGS SPECIFIC FOR WIRE

BRUSHING OPERATIONS

a. Be aware that wire bristles are thrown by the brush even during

ordinary operation. Do not overstress the wires by applying

excessive load to the brush. The wire bristles can easily penetrate light

clothing and/or skin.

b. Allow brushes to run at operating speed for at least one minute

before using them. During this time no one is to stand in front or in

line with the brush. Loose bristles or wires will be discharged during the

run-in time.

c. Direct the discharge of the spinning wire brush away from you.

Small particles and tiny wire fragments may be discharged at high

velocity during the use of these brushes and may become imbedded in

your skin.

PREPARATION

Always unplug the tool from the power source before you make

any adjustments, change accessories, service, clean, etc. This

reduces the risk of starting the tool accidentally.

FIRST USE

The carbon brushes in your tool have been engineered for many hours

of dependable service. To prepare the brushes for use, run the tool at full

speed for 5 minutes under no load. This will properly "seat" the brushes,

and extend the life of the tool.

CHANGING COLLETS

Four different size collets are available for your multitool, to

accommodate different shank sizes. Always use the collet which

matches the shank size of the accessory you plan to use. Never force a

larger diameter shank into a collet. Collet sizes can be identified by the

rings on the back end of the collet. Refer to figure 2.

• 3.2mm / 1/8" Collet with no rings

• 2.4mm / 3/32" Collet with three rings (not included)

• 1.6mm / 1/16" Collet with two rings (not included)

• 0.8mm / 1/32" Collet with one ring (not included)

Use 4200 specific collets only. You can order the collets through

the Dremel Service Center or go to www.dremel.com.

1. Remove a collet (J) from the EZ Change™ chuck (I). Refer to figure

3 and 4.

a. Use needle nose pliers to lightly depress the finger (L) of the

collet until it is clear of the detent feature (K).

b. Pull and hold both EZ Change™ levers to the back (unlock).

c. Pull the collet free from the chuck.

d. Release the EZ Change™ levers.

2. Install a new collet by inserting the narrow end of the new collet

completely into the EZ Change™ chuck.

The fingers (L) of the collet must be aligned with the detents (K)

of the EZ Change™ chuck to be fully inserted.

CHANGING ACCESSORIES

Your Dremel 4200 is equipped with the EZ Change™ mechanism. It

allows you to quickly and easily change accessories without the use of

a wrench.

Use only Dremel tested, high performance accessories! You can

order accessories through the Dremel Service Center or go to

www.dremel.com.

Use the EZ Speedclic to easily install and remove EZ SpeedClic

accessories. Refer to figure 10.

Do not operate the EZ Change™ levers while the multitool is

running as the bit may be ejected.

1. Remove an accessory. Refer to figure 5.

a. Pull and hold both EZ Change™ levers to the back (1) as far as

they will go.

b. Remove the accessory (2).

2. Install an accessory. Refer to figure 5.

a. Pull and hold both EZ Change™ levers to the back (1) as far as

they will go.

b. Insert the accessory into the collet as far as possible (2) to

minimize runout and unbalance.

c. Release the EZ Change™ levers (3).

d. Press the EZ Change™ levers to the front (lock) to fully secure

the bit.

Make sure the accessory is properly secured. Loose

accessories can unexpectedly shift or eject, causing loss of

control. Always use the collet which matches the shank size of

the accessory you plan to use.

If slipping of the accessory occurs, while in use, the tool needs

service.

e. Position yourself and bystanders away from the plane of the

rotating accessory and run the multitool at maximum no load

speed for one minute. Damaged accessories should break apart

during this test time.

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Dremel 4200 Spécifications Page 16

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