Dremel 285 Operation Guidelines, Using the Moto-Tool, Collets -- Four different size toilets see

Operation Guidelines

Read	the	next	sections	carefully.		They	will
help	you	use your MolD-TOOl			correctly		and
help	you	select	the	correct	accessory		for
your	job.

Using the Moto-Tool

The first step in learning to use the Moto-Tool is to get the "feel" of it. Hold it in your hand

and feel its weight and balance. Feel the

taper of the housing. This taper permits the

Moto-Tool to be grasped much like a pen or

pencil. If you nave a variable speed model,

turn iron by sliding the switch speed indicator to each of the speed settings (1 Ihru 5), allowing

the toot to maintain full speed at each

setting. If you have a two-speed model, turn

it on by sliding the switch indicator to the LOW

speed setting. You will notice a detent at this

setting. Then slide the switch indicatortothe

HIGH speed setting. You will also notice a

detent at this setting. If you have a single

speed model, turn it on by sliding the switch

indicator to the on position, you will also notice a detent at this setting.

When you turn on the tool for the first time,

hold it away from your face. Accessories can

be damaged during handling, and can fly

apart as they come up to speed. This is not

common, but it does happen.

Practice on scrap materials first to see how

the Moto-Tool cuts. Keep in mind that the work']s done by the speed of the tool and by

the accessory in the chuck. You should not lean on or push the tool into the work.

Instead, lower the spinning accessory lightly to the work and allow it to touch the point at.

which you want cutting (or sanding or etch-"

ing, etc.) to begin. Concentrate'on guiding the tool over the work using very little pros-

sure from your hand. Allow the accessory to do the work.

Usually, it is best to make a series of passes

with the tool rather than attempt to do all the work in one pass. To make a cut. for example, pass the tool bacX and forth over the work,

much as you would a small paint brush.

Cut a little material on each pass until you

reach the desired depth. For most work, the deft, gentle touch is best. With it, you have

me best control, are less likely to make

errors, and will get the most efficient work out of the accessory.

The pencil grip we described is one way to

hold the Moto-Tool. A second way to grip the

tool much as you would the handgrip on a

bicycle, with your hand wrapped around the

housing and the chuck extending just beyond

your thumb and forefinger. This grip must be used for cutoff wheels and saws for maximum

control and is often used with polishing,

brushing, and grinding accessories.

When using the steel saws

(No.s. 400, 406) or cutoff wheels (Nos. 409, 420, 426) always have the

work securely clamped. Never attempt to

hold the work with one hand while using

either of these accessories. The reason is

that these wheels will grab if they become

slightly canted in the groove, and can kick-

back causing loss of control resulting in

serious injury. Your second hand should be

used to steady and guide the hand holding

the tool. When a cutoff wheel grabs, the

wheel itself usually breaks. When the steel

saw wheel grabs, it may jump from the

groove and you could lose control of the tool.

f,'

For best control in close work, grip the Moto-

Tool like a pencil between your thumb and

forefinger.

This is the "handgrip" method of holding the

tool used for operations such as grinding a flat surface.

The operation of any power tool can result in foreign objects being thrown into the eyes. ,which can result in severe eye damage. Always wear safety glasses or eye shields before commencing oo,,ver tool

operation. We recommended Wide Vlsion Safety Mask for use over spectac!es or standard safety glasses.

Whenever you hold the tool, be careful not to

cover the air vents with your hand. This

blocks the air flow and causes the motor to overheat.

ALWAYS UNPLUG MOTO-TOOL BEFORE

CHANGING ACCESSORIES, CHANGING

COLLETS OR SF--=_VlCING YOUR MOTO TOOL

LOCK 77._IB)_ f_,l

BUT'tON

WRENCH	_	o
COLLET		l	\	COLLET
		TO LOOSEN	COLLET	NUT

COLLET -- Consists of a collet nut and toilet.

To loosen, first slide shaft lock forward and rotate the shaft by hand until the lock engages

the shaft preventing further rotation.

(NOTE: Do not engage lock while the Moto-

Tool is running.) With the lock engaged use

the collet wrench to loosen the collet nut.

Change accessories inserting the new one

Into the collet as far as possible to minimize

runout and unbalance. With the lock engaged, tighten the collet nut with the wrench until the

accessory shank is gripped by the poller.

Avoid excessive tightening of Ihe oollet nut.

This means of securing accessories is best

when using the same bit for extended periods

or during heavy material removal applications.

COLLETS -- Four different size toilets (see

illustration), to accommodate different shank

SELF-ADJUSTING

KEYLESS

CHUCK

AVAILABLE AS ACCESSORY)

/

							482	1116"
							COLLET
								483	1132"
				COLLET
sizes,		are	available		for	your	Moto-Tool.			To
install		a different		toilet,		remove	the	cotlet		nut
and	remove		the	old	collet.	Insert	the	unslotted
end	of	the	cotlet	in	the	hole in	the	end	of	the

tool shaft. Replace collet nut on the shaft.

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.

KEYLESS CHUCK--Can be threaded on the

end of the shaft by engaging the shaft lock

button, you need only use hand tightening to

secure an accessory. Use the keyless chuck when there is a need to change bits frequently, for light duty jobs.

BALANCING ACCESSORIES -- For precision

work, it is important that all accessories be in

good balance (much the same as the tires on

your automobile). To true up or balance an accessory, slightly loosen collet nut and give the accessory or collet a I/4" turn. Retighten

toilet nut and run the Moto-Toot. You should

be able to tell by the sound and feel if your

accessory is running in balance. Continue

adjusting in this fashion until best balance is

achieved. To maintain balance on abrasive

wheel points, before each use, with the wheel point secured in me toilet, turn on the Moto-

Tool and run the 415 Dressing Stone lightly

against the revolving wheel point. This

removes high soots and trues up the wheel point for good balance.

WHEEL DIAMETER -- Other than the No. 426

cutoff wheel, do not use grinding wheels over

1" in diameter, Mote-Tool's high speed can cause larger wheels to fly apart and could cause injury.

SAFETY --Protect your ey_es when grinding

or routing with the		Moto-Tool...			always		wear
an approved	type	of safety		glasses.
Remember.	your	new	Dremel		Moto-Tool		is
the finest	power tool		of its kind.			But its
performance	is	only		as	good	as	the
accessories	with	wmct_		it	is used.		"_'e
recommend	onb/	Oreme{		accessories			to be

used," "Use of any other accessories may create a hazard." We hope you'll enjoy many

years of trouble free pleasure from your Oremel Moto-Tool.

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