Grizzly G8994 User manual

1821 VALENCIA ST., BELLINGHAM, WA 98227

WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE

OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.

FEBRUARY, 2000 PRINTED IN U.S.A.

DISCONTINUED MACHINE MANUAL DISCLAIMER

THE INFORMATION IN THIS MANUAL REPRESENTS THE LAST CONFIGURATION OF THE

MACHINE BEFORE IT WAS DISCONTINUED. MACHINE CONFIGURATIONS MAY HAVE

CHANGED AS PRODUCT IMPROVEMENTS WERE INCORPORATED. IF YOU OWN AN EARLI-

ER VERSION OF THE MACHINE, THIS MANUAL MAY NOT EXACTLY DEPICT YOUR MACHINE .

CONTACT CUSTOMER SERVICE IF YOU HAVE ANY QUESTIONS ABOUT DIFFERENCES.

PREVIOUS VERSIONS ARE NOT AVAILABLE ONLINE.

VARIABLE SPEED JIG SAW

MODEL G8994

INSTRUCTION MANUAL

WARNING

Some dust created by power sanding, sawing, grind-

ing, drilling, and other construction activities contains

chemicals known to the State of California to cause

cancer, birth defects or other reproductive harm.

Some examples of these chemicals are:

•Lead from lead-based paints.

•Crystalline silica from bricks, cement, and

other masonry products.

•Arsenic and chromium from chemically treated

lumber.

Your risk from these exposures varies, depending on

how often you do this type of work. To reduce your

exposure to these chemicals: work in a well ventilated

area, and work with approved safety equipment, such

as those dust masks that are specially designed to fil-

ter out microscopic particles.

G8994 Variable Speed Jig Saw -1-

SAFETY

For Your Own Safety Read Instruction Manual

Before Operating This Equipment

Indicates an imminently hazardous situation which, if not

avoided, WILL result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, COULD result in death or serious injury.

Indicates a potentially hazardous situation which, if not

avoided, MAY result in minor or moderate injury. It may

also be used to alert against unsafe practices.

This symbol is used to alert the user to useful information about

proper operation of the equipment.

The purpose of safety symbols is to attract your attention to possible hazardous condi-

tions. This manual uses a series of symbols and signal words which are intended to con-

vey the level of importance of the safety messages. The progression of symbols is

described below. Remember that safety messages by themselves do not eliminate dan-

ger and are not a substitute for proper accident prevention measures.

NOTICE

Safety Instructions For Power Tools

5. KEEP CHILDREN AND VISITORS

AWAY. All children and visitors

should be kept a safe distance from

work area.

6. MAKE WORK SHOP CHILD

PROOF with padlocks, master

switches, or by removing starter

keys.

7. DON’T FORCE TOOL. It will do the

job better and safer at the rate for

which it was designed.

8. USE RIGHT TOOL. Don’t force tool

or attachment to do a job for which it

was not designed.

1. KEEP ALL SAFETY DEVICES IN

PLACE and in working order.

2. REMOVE ADJUSTING KEYS AND

WRENCHES. Form habit of check-

ing to see that keys and adjusting

wrenches are removed from tool

before turning on.

3. KEEP WORK AREA CLEAN.

Cluttered areas and benches invite

accidents.

4. DON’T USE IN DANGEROUS

ENVIRONMENT. Don’t use power

tools in damp or wet locations, or

where any flammable or noxious

fumes may exist. Keep work area

well lighted.

G8994 Variable Speed Jig Saw

-2-

9. USE PROPER EXTENSION CORD

for the charger. Make sure your

extension cord is in good condition.

Conductor size should be in accor-

dance with the chart below. The

amperage rating should be listed on

the motor or tool nameplate. An

undersized cord will cause a drop in

line voltage resulting in loss of power

and overheating. Your extension

cord must also contain a ground wire

and plug pin. Always repair or

replace extension cords if they

become damaged.

Minimum Gauge for Extension Cords

10. WEAR PROPER APPAREL. Do not

wear loose clothing, gloves, neck-

ties, rings, bracelets, or other jewel-

ry which may get caught in moving

parts. Non-slip footwear is recom-

mended. Wear protective hair cover-

ing to contain long hair.

11. ALWAYS USE SAFETY GLASSES.

Also use face or dust mask if cutting

operation is dusty. Everyday eye-

glasses only have impact resistant

lenses, they are NOT safety glass-

es.

12. SECURE WORK. Use clamps or a

vise to hold work when practical. It’s

safer than using your hand and frees

both hands to operate tool.

Safety Instructions For Power Tools

AMP LENGTH

RATING 25ft 50ft 100ft

0-6 18 16 16

7-10 18 16 14

11-12 16 16 14

13-16 14 12 12

17-20 12 12 10

21-30 10 10 No

13. DON’T OVERREACH. Keep prop-

er footing and balance at all times.

14. MAINTAIN TOOLS WITH CARE.

Keep tools sharp and clean for

best and safest performance.

Follow instructions for lubricating

and changing accessories.

15. DISCONNECT TOOLS before ser-

vicing and changing accessories,

such as blades, bits, cutters, and

the like.

16. REDUCE THE RISK OF UNIN-

TENTIONAL STARTING. Make

sure switch is in off position before

plugging in.

17. USE RECOMMENDED ACCES-

SORIES. Consult the owner’s

manual for recommended acces-

sories. The use of improper acces-

sories may cause risk of injury.

18. CHECK DAMAGED PARTS.

Before further use of the tool, a

guard or other part that is dam-

aged should be carefully checked

to determine that it will operate

properly and perform its intended

function. Check for alignment of

moving parts, binding of moving

parts, breakage of parts, mount-

ing, and any other conditions that

may affect its operation. A guard or

other part that is damaged should

be properly repaired or replaced.

19. NEVER LEAVE TOOL RUNNING

UNATTENDED. TURN POWER

OFF. Don’t leave tool until it comes

to a complete stop.

G8994 Variable Speed Jig Saw -3-

CONTROL LOCATION

Control Location

Refer to Figure 1 for the location of the key

components and controls of the machine.

These controls are called out later in the

manual for their specific use when operat-

ing the saw. Become familiar with the con-

trols and all of the adjustments and set-

tings before operating the Jig Saw.

Fig 1. Location of controls.

Variable Speed Switch

Stroke Rate Adjustment

Orbit Selector

Blade Plunger

Chip Blower

Footplate

Trigger Lock

Blade Locking

Screw

Specifications

Speed: Variable from 0-3100 SPM

Motor Type: Universal Brush Motor

Motor Power: 110V, 5.0 Amp

Blade Orbit: 4 Settings

Stroke Length: 1"

Stroke Settings: Variable from 1 to 6

Blade: Bosch® Style Mounting, 3" - 5"

Blade Guide: Grooved Roller Bearing

Dust Blower: 3 settings

Footplate: Adjustable from +45˚ to -45˚

Weight: 5.5 lbs

Accessories Included: Footplate Wrench &

Blade Lock Screwdriver

G8994 Variable Speed Jig Saw

-4-

Always select the correct saw blade for the

material being cut. The resulting cut will be

cleaner and more accurate, and there will

be less stress on the machine. This Jig

Saw can be used to cut wood, metal or

plastics depending upon the type of blade

selected. The blades used must be of the

Bosch® style mount. Grizzly offers a variety

of blade styles in the current catalog.

A few points to remember in making your

blade selection:

1. The overall blade length will affect

the thickness of material which

can be cut. Most jig saw blades

range in length from 3" to 5".

2. The width of the blade (measured

from the tip of one of the teeth to

the back edge) affects how tight of

a curve can be cut. A 3⁄16" wide

blade will cut a tighter circle than a

3⁄8" wide one.

BLADE SELECTION

Figure 2. Variety of wood and metal cutting blades.

3. The number of teeth per inch

(T.P.I.) affects the smoothness

and speed of the cut. A wood cut-

ting blade for general purpose will

usually have 6-10 T.P.I., a metal

cutting will have 12-20 T.P.I.

Another factor is the tooth style

and how the teeth are set (the

amount the tooth is bent away

from the plane of the blade). Most

blade manufacturer’s provide

guidelines on their packaging for

the types of materials and speeds

to use for a particular blade style.

Review their guidelines carefully

before choosing a blade for a par-

ticular project.

Figure 2 shows the range of blades for

wood and metal cutting available from

Grizzly.

G8994 Variable Speed Jig Saw -5-

BLADE INSTALLATION

Make certain the tool is unplugged while

installing the blade.

1. Make sure the Orbit Selector

switch is in Position III. See Figure 3.

Turn the switch off and unplug the Jig

Saw from power before attempting

blade installation or any adjustments.

Serious injury may occur if the unit

should be accidentally started while

installing the blade

Fig 3. Orbiter selection in Position III.

Fig 4. Inserting blade into plunger.

Fig 5. Tightening blade locking screw.

2. Take the blade and turn it so the

teeth are facing the side of the

footplate, and insert the mount

end into the plunger. See Figure 4.

Twist the blade 90˚ so the teeth

are now pointing forward, then pull

it down slightly. Make certain the

blade is positioned in the groove

of the roller which backs up the

blade.

3. Insert the screwdriver included

with this Jig Saw into the hole at

the top front of the saw. See

Figure 5. Tighten the screw while

making sure the blade stays in the

roller groove.

4. To remove the blade, reverse the

process described above.

G8994 Variable Speed Jig Saw

-6-

There are four settings for orbital action of

the blade, controlled by a lever switch. The

effect of the settings is shown in Figure 6

below. When set on Position III the blade

oscillates forward in the stroke, which is

helpful when cutting wood or soft materi-

als. The Position 0 setting eliminates all

forward oscillation and the blade strokes

ORBITAL ACTION

straight up and down. This is good for

materials with a strong cutting resistance

such as metals and where a very clean cut

edge is desired.

Changes in the orbital movement can be

made with the motor turned on.

Fig 6. Orbital movement settings and typical materials for each selection.

G8994 Variable Speed Jig Saw -7-

BLADE SPEED & CHIP BLOWER

Controlling Blade Speed

Blade speed or stroke rate is controlled by

a trigger style switch under the handle.

Speed increases as the trigger is pulled.

There is also a recessed circular switch in

the trigger which controls the maximum

stroke rate. See Figure 7. The switch is

marked with ranges from 1 to 6 where 1 is

the lowest stroke rate and 6 is the highest.

The adjustment is infinitely variable

between settings.

The proper speed depends upon the type

of material and the blade. Experiment with

a scrap piece of material when first making

a cut to see how the cutting action and

smoothness is. Adjust blade speed and

the rate of feeding the blade into the work

until the action is smooth and the motor

does not slow down excessively.

Fig 7. Blade speed control switch.

Setting Chip Blower

The toggle switch next to the orbital move-

ment selector controls the chip blowing

device. See Figure 8. When set as shown

in the photograph the amount of air is at its

highest level. This is suitable for cutting in

wood when it is desirable to blow the saw-

dust out of the way to see the cut line.

There are two additional settings which

progressively reduce the amount of air

delivered. The lowest setting may be used

for cutting in metal where cutting oil is

being used and it is not desirable to have

air move the oil away from the cutting sur-

face.

Fig 8. Chip blower switch.

G8994 Variable Speed Jig Saw

-8-

FOOTPLATE ADJUSTMENT

The footplate can be adjusted for cutting at

90˚ to the surface as well as any angle

from ±45˚. To be certain the footplate is

cutting at precisely 90˚, it is useful to check

the blade squareness to the footplate with

the use of a small machinist’s square. See

Figure 9.

Fig 9. Checking blade squareness.

Fig 10. Setting footplate for angle cuts.

Fig 11. Footplate positioned for flush cutting.

To adjust to another angle, use the sup-

plied Allen®Wrench to loosen the bolt hold-

ing the footplate. Slide the plate forward

slightly to disengage it from the notch, and

tilt it to the desired angle. At the 45˚ points

there are notches which position the plate.

By pushing the plate back when near 45˚,

the notches will lock the plate in position. If

an angle between 90˚ and 45˚ is desired,

set the angle and leave the plate in the for-

ward position, and tighten the bolt. See

Figure 10.

The footplate can also be set to accommo-

date flush cutting. This might be used

when it is desirable to cut right up to a wall

or other vertical surface. Remove the bolt

holding the footplate with the Allen®

wrench. Slide the plate backward so the

mounting hole lines up with the rearmost

mounting hole. Reinstall and tighten the

bolt. The footplate’s front edge will be

slightly behind the leading edge of the

blade as shown in Figure 11.

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