Page 1
20" BANDSAW
MODEL G1258
INSTRUCTION MANUAL
COPYRIGHT © 1992 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
FEBRUARY, 1999 PRINTED IN USA
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G1258 20" Bandsaw -1-
Table Of Contents
PAGE
1. SAFETY ....................................................................................................................2
SAFETY SYMBOLS ............................................................................................2
SAFETY RULES FOR POWER TOOLS ..........................................................2-3
ADDITIONAL SAFETY INSTRUCTIONS FOR BANDSAWS ..............................4
2. CIRCUIT REQUIREMENTS...................................................................................... 5
220V OPERATION ..............................................................................................5
FUSING ................................................................................................................5
GROUNDING ......................................................................................................5
EXTENSION CORDS ..........................................................................................5
3. INTRODUCTION ...................................................................................................... 6
COMMENTARY....................................................................................................6
UNPACKING ........................................................................................................7
PIECE INVENTORY ............................................................................................7
CLEAN UP............................................................................................................8
SITE CONSIDERATIONS ....................................................................................8
4. ASSEMBLY .............................................................................................................. 9
FENCE ................................................................................................................9
5. ADJUSTMENTS ......................................................................................................10
TRACKING ........................................................................................................10
TENSION............................................................................................................10
WHEEL ALIGNMENT ........................................................................................11
UPPERGUIDES ............................................................................................11-12
LOWERGUIDES ................................................................................................12
CHANGING BLADES ........................................................................................13
POSITIVE TABLE STOP....................................................................................13
6. OPERATIONS..........................................................................................................14
OVERVIEW ........................................................................................................14
TEST RUN..........................................................................................................14
BLADE INFORMATION......................................................................................15
RESAWING ..................................................................................................15-16
CUTTING CURVES............................................................................................16
STACKED CUTS................................................................................................16
7. MAINTENANCE ......................................................................................................17
GENERAL ..........................................................................................................17
LUBRICATION ..................................................................................................17
TABLES..............................................................................................................17
8. CLOSURE................................................................................................................18
MACHINE DATA ................................................................................................19
PARTS BREAKDOWN AND PARTS LISTS ................................................20-21
WARRANTY AND RETURNS............................................................................22
Page 4
-2- G1258 20" Bandsaw
Safety Instructions For Power Tools
SECTION 1: SAFETY
For Your Own Safety Read Instruction
Manual Before Operating This Equipment
Failure to obey a DANGER symbol and notation WILL
result in
serious personal injury including loss of life or body parts.
Failure to obey a WARNING symbol and notation can
result in
serious injury to yourself and others.
Failure to obey a CAUTION symbol and notation may result in
minor or moderate property damage or personal injury.
This symbol is used to alert the user to useful information about
safe and proper operation of the equipment.
The purpose of safety symbols is to attract your attention to possible dangers. This manual uses
a series of symbols which are intended to convey the level of criticality of the safety message.
The progression of symbols is described below. Remember that safety messages by themselves
do not eliminate danger and are not a substitute for proper accident prevention measures.
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 GUARDS IN PLACE and in working
order.
2. REMOVE ADJUSTING KEYS AND
WRENCHES. Form habit of checking 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.
DANGER
Page 5
G1258 20" Bandsaw -3-
Safety Instructions For Power Tools
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 servicing
and changing accessories, such as blades,
bits, cutters, and the like.
16. REDUCE THE RISK OF UNINTENTIONAL
STARTING. Make sure switch is in off posi-
tion before plugging in.
17. USE RECOMMENDED ACCESSORIES.
Consult the owner’s manual for recommended accessories. The use of improper
accessories may cause risk of injury.
18. 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, binding of moving parts, breakage of parts, mounting, and
any other conditions that may affect its operation. A guard or other part that is damaged
should be properly repaired or replaced.
19. DIRECTION OF FEED. Feed work into a
blade or cutter against the direction of rotation of the blade or cutter only.
20. NEVER LEAVE TOOL RUNNING UNAT-
TENDED. TURN POWER OFF. Don’t leave
tool until it comes to a complete stop.
9. USE PROPER EXTENSION CORD. Make
sure your extension cord is in good condition. When using an extension cord, be
sure it is rated Hard Service (grade S) or
better. Conductor size must be 16 A.W.G.
for cords up to 100 feet in length. 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 Gage for extension
cord:
16 A.W.G. 50ft
16 A.W.G. 100ft
14 A.W.G. 200ft
12 A.W.G. 300ft
10. WEAR PROPER APPAREL. Do not wear
loose clothing, gloves, neckties, rings,
bracelets, or other jewelry which may get
caught in moving parts. Non-slip footwear
is recommended. Wear protective hair covering to contain long hair.
11. ALWAYS USE SAFETY GLASSES. Also
use face or dust mask if cutting operation is
dusty. Everyday eyeglasses only have
impact resistant lenses, they are NOT safety glasses.
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.
13. DON’T OVERREACH. Keep proper footing
and balance at all times.
Page 6
-4- G1258 20" Bandsaw
Additional Safety Instructions For Bandsaws
No list of safety guidelines can be complete. Every shop environment is different.
Always consider safety first, as it applies to
your individual working conditions. Use
this and other machinery with caution and
respect. Failure to do so could result in
serious person injury, damage to equipment or poor work results.
6. Always feed stock evenly and smoothly. Do
not force or twist blade while cutting, especially when sawing small radii.
7. This machine is not designed to cut metal
or other material except wood.
8. When replacing blades, make sure teeth
face down towards the table. The force of
the cut is always down.
9. Habits – good and bad – are hard to break.
Develop good habits in your shop and safety will become second-nature to you.
10. Do not manually stop or slow blade after
turning the saw off. Use foot brake.
1. Do not operate your bandsaw with dull or
badly worn blades. Dull blades require more
effort to use and are difficult to control.
Inspect blades before each use.
2. Never position fingers or thumbs in line with
the cut. Serious personal injury could occur.
3. Always support round stock in a V-block.
4. Ensure that the machine sits firmly on the
floor before use. Any “wobbles” must be corrected by shimming or blocking before operation.
5. Make sure blade has been properly ten-
sioned.
Always wear ANSI-approved safety glasses
or goggles and hearing protection when
operating equipment — particularly when
testing new tools or machinery. Do not
allow visitors into your workshop when
testing or operating equipment. Serious
personal injury may occur.
Page 7
G1258 20" Bandsaw -5-
220V Operation
SECTION 2: CIRCUIT REQUIREMENTS
Your Model G1258 Bandsaw is supplied with a
single phase 220V only motor. Under normal use,
the motor draws approximately 15 amps @ 220V.
We recommend a 20 amp circuit breaker or slowblow fuse. This should be satisfactory for normal
use, while providing enough protection against
motor damage caused by power surges. If frequent circuit failures occur when using the bandsaw, contact our service department or your local
electrical contractor.
A plug is not supplied. We recommend using a
NEMA 6-20. See Figure 1.
The Model G1258 should be fused at 20 amps.
Fusing at amperage ratings higher than 20 amps
will not adequately protect the motor. You are
cautioned that equipment that is returned to us
for service that shows evidence of being overfused will be repaired or replaced totally at the
customer’s expense, regardless of the present
warranty status.
In preparing to connect the Model G1258 to your
existing or new circuit, it will be necessary to connect a plug that matches your 220V/240V receptacle. If you will be installing a new receptacle
and plug, we recommend either of the styles
shown in Figure 1. Note that you have the choice
between simple plug-in and twist-lock plug styles.
Whichever style you choose, be sure that both
the plug and outlet are rated at 20 amps.
Fusing
Standard
Locking
Figure 1. Two typical outlet/plug configurations.
If used, extension cords must be rated hard service – grade S – or better. Conductor size must
be 12 AWG for cords up to 50 feet in length. Your
extension cord must also contain a ground wire
and plug pin. To ensure safe and dependable
machine performance, inspect cords frequently
for wear or damage. Replace or repair the cord
immediately if evidence of damage is apparent.
Extension Cords
Grounding
This equipment must be grounded. Please
ensure that this machine is continuously
grounded from the motor to the machine frame
and then to a known ground. Verify that any
existing electrical outlet and circuit you intend
to plug into is actually grounded. If it is not, it
will be necessary to run a separate 12 A.W.G.
copper grounding wire from the outlet to a
known ground. Under no circumstances should
the grounding pin from any three-pronged plug
be removed. Serious personal injury may
occur.
220V/240V
20A
NEMA 6-20
220V/240V
20A
NEMA L6-20
Page 8
To operate this or any power tool safely
and efficiently, it is essential to become as
familiar with it as possible. The time you
invest before you begin to use your Model
G1258 will be time well spent. DO NOT
operate this machine until you are completely familiar with the contents of this
manual. Serious personal injury may
occur.
-6- G1258 20" Bandsaw
SECTION 3: INTRODUCTION
Commentary
We are proud to offer the Model G1258 20"
Bandsaw. The Model G1258 is part of a growing
Grizzly family of fine woodworking machinery.
When used according to the guidelines set forth
in this manual, you can expect years of troublefree, enjoyable operation and proof of Grizzly’s
commitment to customer satisfaction.
The Model G1258 is a woodcutting bandsaw with
a 3 H.P. motor, fence, foot brake and complete
electrical package. It features an all steel construction frame and cast iron table. Accessories
are also available for the G1258. Consult the current Grizzly catalog for prices and ordering information.
We are also pleased to provide this instructional
manual with the Model G1258 20" Bandsaw. It
was written to guide you through assembly,
review safety considerations, and cover general
operating procedures. It represents our effort to
produce the best documentation possible. If you
have any comments regarding this manual,
please write to us at the address below:
Grizzly Industrial, Inc.
C
/O Technical Documentation
P.O. Box 2069
Bellingham, WA 98227-2069
Most importantly, we stand behind our machines.
If you have any service questions or parts
requests, please call or write us at the location
listed below.
The specifications, drawings, and photographs
illustrated in this manual represent the Model
G1258 as supplied when the manual was prepared. However, owing to Grizzly’s policy of continuous improvement, changes may be made at
any time with no obligation on the part of Grizzly.
Whenever possible, though, we send manual
updates to all owners of a particular tool or
machine. Should you receive one, we urge you to
insert the new information with the old and keep
it for reference
.
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Fax: (800) 438-5901
E-Mail: techsupport@grizzly.com
Web Site: http://www.grizzly.com
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G1258 20" Bandsaw -7-
Unpacking
The bandsaw is shipped from the factory in a
carefully packed carton. If you find the machine to
be damaged after you’ve signed for delivery and
the truck and driver are already gone, you will
need to file a freight claim with the carrier. Save
the containers and all packing materials for
inspection by the carrier or their agent. Without
the packing materials, filing a freight claim can be
difficult. If you need advice regarding this situation, please call us immediately.
When you are completely satisfied with the condition of your shipment, you should inventory its
parts.
The G1258 is a very heavy machine with a
shipping weight of 650 lbs. DO NOT overexert yourself while unpacking or moving
your machine – get assistance. In the event
that your bandsaw must be moved up or
down a flight of stairs, be sure that the
stairs are capable of supporting the combined weight of people and the machine.
Serious personal injury may occur.
Parts Inventory
Save all containers and packing materials
until you are satisfied that your bandsaw
has arrived in good condition. Freight company adjusters will want to inspect those
materials in the event that a freight claim
must be made.
Take a quick inventory of the parts and put them
aside for assembly later. After all the parts have
been removed from the container, you should
have:
• Bandsaw Assembly
• Fence Assembly
• Hardware
• Miter Gauge
Now is a good time to inventory the fasteners
required for assembly. We would like to point out
that the quantities given here are the minimum
needed to do the job; it is possible that there will
be some extra parts. On the other hand, it is also
possible that there may be one or two items missing. If so, you are welcome to call us. We will ship
them to you. For the sake of expediency, you
may find it more convenient, though, to replace
any miscellaneous fasteners at your local hardware store. Fasteners include:
Hardware Qty
Cap Screws
5
⁄16" - 18 x 21⁄2"2
Fence Rail Spacers 2
Fence Rail 1
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-8- G1258 20" Bandsaw
Clean Up
The unpainted surfaces are coated with a waxy
oil to protect it from corrosion during shipment.
Remove the protective coating with common
paint thinner (mineral spirits) and paper towels.
Do not use gasoline or other petroleum based
solvents because of their extremely low flash
points. Do not use chlorine-based solvents – if
you happen to splash some onto a painted surface, you’ll ruin the finish.
Some die-cut metal parts may have sharp
edges (called “flashing”) on them after they
are formed. Please examine the edges of
all die-cut metal parts before handling
them. Failure to do so could result in injury.
Follow the safety rules listed below when
working with solvents.
1. Read and follow all directions and
warnings on the solvent label.
2. Work only in a well ventilated area.
3. Do not work near any type of open
flame (e.g., pilot lights, kerosene
heaters, and so on).
4. DO NOT smoke while working with
flammable material.
5. Paper towels from the cleaning
process are extremely combustible.
Dispose of waste towels so they do not
create a fire hazard.
Site Considerations
FLOOR LOAD
Your G1258 Bandsaw represents a large weight
load in a small footprint. Most commercial floors
are suitable for the Model G1258. Some residential floors may require additional build up to support both machine and operator.
WORKING CLEARANCES
Working clearances can be thought of as the distances between machines and obstacles that
allow safe operation of every machine without
limitation. Consider existing and anticipated
machine needs, size of material to be processed
through each machine, and space for auxiliary
stands and/or work tables. Also consider the relative position of each machine to one another for
efficient material handling. Be sure to allow yourself sufficient room to safely run your machines in
any foreseeable operation.
LIGHTING AND OUTLETS
Lighting should be bright enough to eliminate
shadow and prevent eye strain. Electrical circuits
should be dedicated or large enough to handle
combined motor amp loads. Outlets should be
located near each machine so power or extension cords are not obstructing high-traffic areas.
Be sure to observe local electrical codes for proper installation of new lighting, outlets, or circuits.
Make your shop “child safe”. Ensure that
your workplace is inaccessible to youngsters by closing and locking all entrances
when you are away. Never allow visitors in
your shop when assembling, adjusting or
operating equipment.
Page 11
G1258 20" Bandsaw -9-
SECTION 4: ASSEMBLY
Fence
Most of your G1258 20'' bandsaw has been
assembled at the factory. Only the fence assembly requires installation.
To mount the fence to the bandsaw table:
1. Mount the front rail to the table using the 2
5
⁄
16-18 x 2
1
⁄
2'' Cap Screws and the 2 Spacers
provided. See Figure 2.
2. Loosen the fence lock knob and slide the
fence onto the rail.
Figure 2. Front rail in place and fence installed.
DO NOT attempt any step of assembly,
adjustments, or maintenance while your
Model G1258 is running. Ensure that the
switch is off, power is disconnected and
moving parts have stopped before making
adjustments. Failure to comply may result
in serious personal injury.
Page 12
-10- G1258 20" Bandsaw
SECTION 5: ADJUSTMENTS
Tracking
To adjust the tracking:
1. Disconnect the bandsaw from the power
source and open the top and bottom wheel
covers. Adjust the upper and lower guide
assemblies away from the blade.
2. Loosen the lock nut on the tracking knob.
See Figure 3. Rotate the upper wheel by
hand and adjust the tracking knob (turn the
tracking knob clockwise to track the blade in,
counterclockwise to track out) until the flat
body of the blade tracks in the center of the
upper wheel. Turn the wheel at least three
full turns to ensure that the blade is tracking
in its final position.
Figure 3. Tracking knob adjustment location.
Tracking Knob
Use extreme care when turning the bandsaw wheel. The upper wheel may have
sharp edges and any procedures which
require work in close proximity to the bandsaw blade could result in serious injury.
Tension
Final blade tension ultimately depends on the
type and size of blade you use. To adjust the tension:
1. Press, with moderate pressure, on the face
of the blade with your thumb.
2. Turn the tension wheel until the blade
deflects about
1
⁄
4". See Figure 4.
3. Make the other adjustments to the saw and
test run it. If the blade is not cutting properly,
the tension may need to be increased.
Remember, thin blades require less tension
than wide blades.
4. Reduce the blade tension when the bandsaw
is not in use. This will help prevent premature
wear or breakage of the blade and/or rubber
tires.
Figure 4. Tension wheel adjustment location.
Tension Wheel
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G1258 20" Bandsaw -11-
Normally Steps 1-4 are implemented prior to
installing a new blade. To adjust the upper
guides:
1. Loosen the bearing guide shaft lock nuts.
2. The bearing guides are mounted on an
eccentric shaft. With a regular screwdriver,
rotate the guides away from the blade.
3. Loosen the cap screw holding the bearing
back-up shaft in place and slide the bearing
back-up away from the blade.
4. Loosen the cap screw holding the blade
assembly in place and slide it back away
from the blade.
5. Install your blade of choice. Track and ten-
sion as per the instructions in this manual.
6. Move the blade guide assembly so the bear-
ing guides are
1
⁄
16" behind blade gullets.
Tighten the guide assembly.
Figure 6 shows upper blade guide assembly.
Lock Nuts
Rear Support Bearing
Bearing Guides
Guide
Assembly
Figure 5. Wheel alignment adjusting knobs.
Adjusting Knobs
Which ever direction one knob is turned,
the other knob must be turned the same
amount in the opposite direction. If this
step is not observed, the tracking mechanism will be put in a bind.
Upper Guides
The upper wheel can be adjusted to correct for
any deviation in parallelism. Although this has
been set at the factory, it is a good idea to check
it occasionally to assure good and proper operation of your bandsaw. To adjust the wheel parallelism:
1. Open the top and bottom covers.
2. Measure the distance the bottom wheel is
from the bandsaw frame, front to back.
Usually the Lower wheel will be slightly at an
angle to the bandsaw frame. Make note
which way the wheel is skewed and by how
much.
3. Now measure the top wheel, front to back.
Ideally, you want the top wheel to match the
angle at which the bottom wheel is set. For
example: if the you determine the bottom
wheel is tapered to the front by
1
⁄16'', the top
wheel should be adjusted so it is tapered in
the same direction by the same amount.
4. The knobs to adjust the top wheel are locat-
ed at the back of the bandsaw. Refer to
Figure 5. Loosen the check nuts and adjust
as necessary.
Wheel Alignment
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-12- G1258 20" Bandsaw
7. Now rotate the bearing guide shafts until the
bearings are approximately
1
⁄64'' from the
blade. Hold the shafts in place with a screw
driver and tighten the bearing guide lock
nuts. The guide bearing, when adjusted correctly, should have a slight drag against the
blade. If the guide bearings pinch the blade,
it will damage the bearing guides and blade.
8. Slide the rear support bearing until it is
approximately
1
⁄
32'' from the blade and tight-
en.
The bearing guide shaft lock nuts should
only be as loose as necessary to allow the
shafts to rotate. If they are too loose it will
be very difficult, if not impossible, to adjust
the guides accurately.
Normally Steps 1-4 are implemented prior to
installing a new blade. To adjust the lower guides:
1. Loosen the lower guide lock nuts and thread
the shafts out so the blade guides are away
from the blade.
2. Loosen the setscrew that holds the rear sup-
port bearing in place and slide it back.
3. Loosen the bolts that hold the lower guide
assembly in place and slide the lower guide
back.
4. Install blade. Track and tension according to
the instructions in this manual. It is recommended that you adjust the upper guides
first, then the lower.
5. Slide the lower guide forward so the bearing
guides are
1
⁄16" behind blade gullets. Tighten
the lower guide assembly.
Lower Guides
6. Thread in the lower blade guide adjusters
until the blade guides are approximately
1
⁄64''
from the blade. Tighten the lock nuts.
7. Slide the rear support bearing until it is
approximately
1
⁄32'' from the blade and tight-
en.
Figure 7 shows lower blade guide assembly.
Lock Nut
Blade Guide Adjuster
Blade Guide
DO NOT make adjustments while the bandsaw is running. Ensure that the switch is off,
power is disconnected and moving parts
have stopped before making adjustments.
Failure to comply may result in serious personal injury.
Page 15
G1258 20" Bandsaw -13-
After changing a blade, the upper and lower
blade support bearings and guide blocks must be
readjusted. Always adjust the guide assemblies
away from the blade before installing a new blade
or making blade adjustments.
To change blades:
1. Make sure machine is off and unplugged.
2. Open upper and lower wheel covers.
3. Remove the fence assembly.
4. Release tension on the bandsaw blade.
5. Remove table insert and setscrew from the
table.
6. Slip blade off wheels and guide it through
the table slot.
7. To install a new blade, reverse the above
procedure.
After correctly setting blade tension and tracking,
readjust the upper and lower support bearings
and guide block assemblies.
To adjust the positive stop so the table will be
perpendicular to the blade:
1. Loosen the trunnion lock handle and check
nut locking the positive stop adjusting bolt.
See Figure 8.
2. Raise the upper blade guide assembly up
and stand a machinist’s square or
adjustable square on the table next to the
side of the blade. Adjust the positive stop
adjusting bolt to raise or lower the table until
the table is 90° to the blade.
3. Secure the trunnion lock handle and lock
the positive stop adjusting bolt by tightening
the lock nut. Ensure that the bolt does not
turn while tightening the lock nut.
Figure 8. Location of positive stop adjustment.
Positive Stop
Wear gloves and safety glasses when handling blades. Coiled blades will spring open
as they are uncoiled. Blades are very sharp.
Failure to exercise care may result in serious personal injury.
Changing Blades
Positive Table Stop
Page 16
-14- G1258 20" Bandsaw
SECTION 6: OPERATIONS
Overview
Test Run
The bandsaw is one of the most versatile wood
cutting tools in the shop. It is capable of performing many different cutting functions including, but
not limited to:
STRAIGHT CUTS
1.Miters
2.Angles
3.Compound Angles
4.Resawing
IRREGULAR CUTS
1.Simple and Complex Curves
2.Duplicate Parts
3.Circles
4.Beveled Curves
Although you can perform many types of straight
cuts such as angling and mitering on the bandsaw, they will not be as precise as on a table saw.
Also, since the blade is flexible, the resulting cut
is somewhat rougher than one performed on a
table saw. However, just as a table saw is suited
to precision straight cuts and miters, the bandsaw
excels when resawing and when cutting irregular
shapes. A properly adjusted and tuned up bandsaw is also safer to operate than most other saws
and is capable of performing many sawing functions with ease and accuracy.
A common fault when using a bandsaw is blaming the saw for not performing up to expectations.
Many factors contribute to a bandsaw’s performance. Using the wrong kind of blade or a cheap
blade usually results in unsatisfactory performance. Misuse of the saw or using incorrect sawing techniques can be unsafe as well as result in
frustration and poor cuts. Remember, the blade
does the cutting with the operator’s guidance.
Replace blades as necessary and make adjustments periodically to keep the saw always running in top condition.
Do not force the material against the blade, use
light even pressure. Light contact with the blade
will permit easier line following and prevent
undue friction, heat and work-hardening along
the back edge of the blade.
Avoid twisting the blade by trying to turn sharp
corners. Remember, you must saw around corners.
Once assembly is complete and adjustments are
done to your satisfaction, you are ready to test
the machine.
Turn on the power supply at the main panel.
Press the START button. Make sure that your finger is poised on the STOP button, just in case
there is a problem. The bandsaw should run
smoothly, with little or no vibration or rubbing
noises. Strange or unnatural noises should be
investigated and corrected before operating the
machine further.
If noises occur that cannot be found by visual
inspection, feel free to contact our service department for help.
Keep your finger on the STOP button, just in
case there are any problems with the
machine. Turn the machine off IMMEDIATELY if you suspect there is something wrong.
Set the top guide assembly so it is just above
the top of the work at all times.
Page 17
G1258 20" Bandsaw -15-
A bandsaw blade is a delicate piece of steel that
is subjected to tremendous strain. You can obtain
long use from a bandsaw blade if you give it fair
treatment. Be sure you use blades with proper
width and temper for the various types of cutting
operations.
Always use the widest blade possible. Use narrow blades only for sawing small, abrupt curves
and fine detail work. Blades may be purchased
welded, set and sharpened ready-for-use. We
supply 154
1
/2" bandsaw blades in 3/16", 1/4", 3/8",
1
/2", 3/4", 1" and 11/4" widths for this saw. Refer to
our current catalog for prices and ordering information.
Always select and use good-quality saw blades
and choose the right blade for the right job. Poor
quality blades and improper use are often the
cause of premature blade failure.
Many conditions may cause a bandsaw blade to
break. Blade breakage is, in some cases,
unavoidable, since it is the natural result of the
peculiar stresses that bandsaw blades are subjected to. Blade breakage is also due to avoidable circumstances. Avoidable breakage is most
often the result of poor care or judgement on the
part of the operator when mounting or adjusting
the blade or support guides.
The most common causes of blade breakage are:
(1) faulty alignment and adjustment of the guides,
(2) forcing or twisting a wide blade around a
curve of short radius, (3) feeding too fast, (4)
tooth dullness or absence of sufficient set, (5)
excessive tension, (6) top blade guide assembly
set too high above the workpiece, (7) using a
blade with a lumpy or improperly finished braze or
weld and (8) continuously running the bandsaw
when not in use.
When installing a new blade, inspect its weld and
file smooth, when necessary, prior to operation.
Blade Information
Resawing is the process of cutting a board into
two or more thinner boards. The maximum board
width that can be resawn is limited by the maximum cutting height of the bandsaw. Maximum
cutting height for this bandsaw is 13".
The Model G1258 bandsaw is highly capable of
resawing, provided the saw is set up properly.
Use common sense when resawing. Attempting
to resaw too wide or too dense a board may put
excessive strain on the blade and be dangerous.
The important consideration when resawing is
blade selection. Generally, the wider blade, the
better your results. In most applications, a hook
or skip tooth style will be sufficient. Since most
resawn lumber will be planed smooth, choose
blades with fewer teeth-per-inch (from 3 to 6).
While blades with fewer teeth-per-inch produce
rougher cuts, these types of blades offer larger
gullet capacities for clearing sawdust, less heat
buildup, and yield more horsepower per tooth.
Resawing
Figure 16. Proper method for resawing lumber.
1. The bandsaw must be adjusted correctly.
See Blade Adjustment Section.
2. The table must be square to the blade. See
Table Adjustment Section.
3. Use the widest blade available. The blade
must also be in good condition.
4. Use a fence to guide work.
Page 18
-16- G1258 20" Bandsaw
5. Draw a reference line on the edge of the
board.
6. Support ends of the board if necessary.
7. Feed work slowly and evenly.
Cutting Curves
When cutting curves, simultaneously feed and
turn the stock carefully so that the blade follows
the layout line without being twisted. If a curve is
so abrupt that it is necessary to repeatedly back
up and cut a new kerf, use either a narrower
blade or a blade with more set. A blade with more
set can cut relatively tighter radii, though the cut
is usually rougher than cuts produced by a blade
with medium set.
Always make short cuts first, then proceed to the
longer cuts. Relief cuts will also reduce the
chance that the blade will be pinched or twisted.
Relief cuts are cuts made through the waste portion of the workpiece and are stopped at the layout line. As you cut along the layout line, waste
wood is released from the workpiece, alleviating
any pressure on the back of the blade. Relief cuts
also make backing the workpiece out easier, if
needed.
The table below lists blade widths and corresponding minimum radii each blade will
cut.
Width Radius
3
⁄8'' ..............................11⁄2''
1
⁄2'' ..............................21⁄2''
3
⁄4'' ..............................51⁄2''
1'' ................................6''
1
1
⁄2'' ............................8''
Stacked Cuts
One of the benefits of a bandsaw is its ability to
cut multiple copies of a particular shape by stacking a number of workpieces together.
Before making stacked cuts, it is essential to
ensure that both the table and the blade are properly adjusted to 90°. Otherwise, any error will be
compounded with each piece cut from the top to
the bottom of the stack.
To complete a stacked cut:
1. Align your pieces from top to bottom to
ensure that each piece has adequate scrap
to provide a clean, unhampered cut.
2. Using brads in the waste portion of each
piece, secure all the pieces together.
3. Lay out the shape you intend to cut on the
face of the top piece.
4. Make relief cuts perpendicular to the outline
of your intended shape in areas where
changes in blade direction could strain the
woodgrain or cause the blade kerf to bind.
5. Cut the stack of pieces as though you were
cutting a single piece. Follow you layout line
with the blade kerf on the waste side of your
line.
Page 19
G1258 20" Bandsaw -17-
SECTION 7: MAINTENANCE
Shielded and pre-lubricated ball bearings require
no lubrication for the life of the bearings. All bearings are standard sizes and replacements can be
purchased from our parts department or your
local bearing supply store.
As for other items on this machine, such as
adjustment controls, an occasional “shot” of light
oil is just about all that is necessary. Before
applying, however, wipe off any sawdust with a
clean cloth or towel and spray on the lubricant.
Ensure that oil does not get on the pulleys or Vbelts because it could cause belt deterioration
and slipping.
Make a habit of inspecting your Bandsaw each
time you use it. Check for the following conditions
and repair or replace when necessary.
1. Loose mounting bolts.
2. Worn switch.
3. Worn or damaged cords and plugs.
4. Damaged V-belt.
5. Any other condition that could hamper the
safe operation of this machine.
The table and other non-painted surfaces on the
Model G1258 should be protected against rust
and pitting. Wiping the saw clean after every use
ensures that moisture from wood dust isn’t
allowed to trap moisture against bare metal surfaces.
Most experienced woodworkers recommend
using automotive paste wax on exposed steel
and cast iron surfaces. The wax provides a layer
of protection, as well as reducing friction between
lumber and the table, making cuts faster and
smoother.
Avoid waxes that contain silicone or other synthetic ingredients. These materials can find their
way into lumber that’s being milled, and can
make staining and finishing difficult. If you use
paste wax, make sure that it’s 100% Carnauba
wax.
General
Lubrication
Table
DO NOT make adjustments or attempt maintenance procedures while the Model G1258
is running. Ensure that the switch is off,
power is disconnected and moving parts
have stopped before making adjustments.
Failure to comply may result in serious personal injury.
Page 20
-18- G1258 20" Bandsaw
The following pages contain general machine
data, parts diagrams/lists, and Warranty/Return
information for your Model G1258 20" Bandsaw.
If you need parts or help in assembling your
machine, or if you need operational information,
we encourage you to call our Service
Department. Our trained service technicians will
be glad to help you.
If you have comments dealing specifically with
this manual, please write to our Bellingham,
Washington location using the address in the
Introduction. The specifications, drawings, and
photographs illustrated in this manual represent
the Model G1258 as supplied when the manual
was prepared. However, due to Grizzly’s policy of
continuous improvement, changes may be made
at any time with no obligation on the part of
Grizzly. Whenever possible, though, we send
manual updates to all owners of a particular tool
or machine. Should you receive one, add the new
information to this manual and keep it for reference.
We have included some important safety measures that are essential to this machine’s operation. While most safety measures are generally
universal, Grizzly reminds you that each workshop is different and safety rules should be con-
sidered as they apply to your specific situation.
We recommend you keep a copy of our current
catalog for complete information regarding
Grizzly's warranty and return policy. If you need
additional technical information relating to this
machine, or if you need general assistance or
replacement parts, please contact the Service
Department listed in Section 3: Introduction.
Additional information sources are necessary to
realize the full potential of this machine. Trade
journals, woodworking magazines, and your local
library are good places to start.
SECTION 8: CLOSURE
The Model G1258 was specifically designed
for wood cutting operations. DO NOT MODIFY AND/OR USE THIS BANDSAW FOR ANY
OTHER PURPOSE. Modifications or improper use of this tool will void the warranty. If
you are confused about any aspect of this
machine, DO NOT use it until you have
answered all your questions. Serious personal injury may occur.
Like all power tools, there is danger associated with the Model G1258 20" Bandsaw.
Use the tool with respect and caution to
lessen the possibility of mechanical damage or operator injury. If normal safety precautions are overlooked or ignored. Serious
personal injury may occur.
Always wear ANSI-approved safety glasses
or goggles when operating equipment Do
not allow visitors into your workshop when
testing or operating equipment unless they
also have proper safety glasses. Serious
personal injury may occur.
Page 21
G1258 20" Bandsaw -19-
Customer Service #: (570) 326-3806 • To Order Call: (800) 523-4777 • Fax #: (800) 438-5901
GRIZZLY MODEL G1258 20" BANDSAW
MACHINE DATA
SHEET
Design Type: .................................................................................................... Floor Model
Overall Dimensions:
Table ....................................................................................20" W x 24"D x 1
5
⁄8" Thick
Overall Height..........................................................................................................75"
Height From Floor to Table ..................................................................................35
1
⁄
2"
Width ....................................................................................................................38
1
⁄2"
Depth including Fence ..........................................................................................27
3
⁄4"
Shipping Weight ................................................................................................650 lbs.
Weight in Place ................................................................................................514 lbs.
Crate Size ..............................................................................................24" x 37" x 81"
Cutting Capacity:
Left of Blade ............................................................................................................20"
Height ......................................................................................................................13"
Construction:
Table ..................................................................................Precision Ground Cast Iron
Upper Wheel....................................Fully balanced Cast Aluminum with Rubber Tires
Lower Wheel ............................................Fully balanced Cast Iron with Rubber Tires
Rip Fence ........................................................................Formed Steel and Bar Stock
Wheel Covers ..............................................................................Pre-Formed Steel
Guides ....................................................................................All Ball Bearings Guides
Motor:
Type ............................................................................TEFC Capacitor Start Induction
Horsepower............................................................................................................3 HP
Phase / Cycle ..............................................................................Single Phase ⁄ 60 Hz
Voltage ..................................................................................................................220V
Amps ........................................................................................................................15
RPM ......................................................................................................................1720
Bearings ........................................................Shielded & Permanently Lubricated Ball
Blades:
Sizes Available ....................................................................................From
3
⁄16" to 11⁄4"
Standard Blade Length........................................................................................154
1
⁄2"
Blade Speeds................................................................................................2800 FPM
Features:
................................................................Micro-Adjustable Ball Bearing Blade Guides
............................................................................................................Cast Iron Fence
..................................................................................................................Miter Gauge
....................................................................................................................4" Dust Port
....................................................................................................................Foot Brake
..................................................................................................................Table Tilt 45°
Specifications, while deemed accurate, are not guaranteed.
REVISED 2/99
Page 22
PARTS DIAGRAM AND PARTS LIST
Page 23
G1258 20" Bandsaw -21-
REF PART # DESCRIPTION
REF PART # DESCRIPTION
01 P1258001 BODY
02 P1258002 BEARING BASE
03 P6305 BEARING 6305-2RS
04 P1258004 SHAFT
05 PK28M KEY 7 X 7 X 29
06 PN03 HEX NUT
3
⁄4''-16
07 P1258007 BEARING COVER
08 P1258008 WASHER
09 P1258009 PHILLIPS HEAD SCREW
10 P1258010 COVER
11 P1258011 WASHER
12 PB18 HEX BOLT 3⁄8''-16 X 1''
13 P1258013 ADJUST WHEEL
14 PSS03 SETSCREW 1⁄4''-20 X 3⁄8''
15 PW02 FLAT WASHER
3
⁄8''
16 PSB14 CAP SCREW 3⁄8''-16 X 1''
17 PN02 HEX NUT 5⁄
16''-18
18 P1258018 KNOB
5
⁄
16''-18
19 P1258019 WHEEL BRACKET
20 P1258020 BRACKET SHAFT
21 PSS02 SET SCREW
5
⁄16''-18 X 3⁄8''
22 P1258022 ADJUST BRACKET
23 P1258023 ADJUST SCREW
24 P1258024 ELEVATOR BRACKET
25 P1258025 SPRING
26 P1258026 GUIDE SPINDLE
26A P1258026A BUSHING
27 P1258027 GUIDE BRACKET
28 PR09M SNAP RING 20MM
29 P1258029 LEVER SHAFT
30 PN08 HEX NUT 3⁄8''-16
31 P1010079 TENSION KNOB
32 P1258032 UPPER ADJUST BRACKET
33 PR11M SNAP RING 25MM
34 P6205 BEARING 6205-2RS
35 P1258035 BEARING BASE
36 P1258036 UPPER WHEEL SHAFT
37A P1258037A UPPER WHEEL ALUMINUM
37B P1258037B LOWER WHEEL CAST IRON
38 P1258038 RUBBER TIRE
39 P1258039 WASHER
3
⁄4''
40 PN03 HEX NUT
3
⁄4''-16
41 P1258041 UPPER GUARD
41A P1258041A HINGE PINS
42 P1258042 LOWER GUARD
43 P1258043 PHILLIPS HEAD SCREW
44 P1258044 BRAKE WHEEL
45 PVB36 V-BELT B-36
46 P1258046 SEE CATALOG
47 P1258047 HEX BOLT
48 P1258048 BRAKE BELT LOCKING
49 P1258049 BRAKE BELT
50 P1258050 RIVET
51 P1258051 HEX NUT
52 P1258052 MICRO SWITCH
53 P1258053 MOTOR PULLEY
55 P1258055 POWER CORD
56 P1258056 MOTOR CORD
61 P1258061 MOTOR
62 P1258062 MOTOR PLATE
63 P1258063 HEX BOLT
64 P1258064 BRAKE PEDAL
65 P1258065 SPRING
66 P1258066 DUST CHUTE
67 P1258067 BUSH
68 P1258068 FENCE GUIDE RAIL
69 PSB12 CAP SCREW 5⁄16''-18 X 21⁄2''
70 P1258070 SETSCREW
71 P1258071 RAIL PLUG
72 P1258072 FENCE
73 P1258073 LOCKING KNOB
74 P1258074 WORKING TABLE
75 P1012044 TABLE INSERT
76 P1258076 SPRING PIN
77 P1258077 MITER BAR
78 P1258078 POINTER
79 P1258079 PAN SCREW 3⁄16" X 3⁄8"
80 P1258080 PIN
81 P1258081 MITER BODY
82 P1258082 WASHER
83 P1258083 LOCK HANDLE
84 P1258084 TABLE BRACKET
86 P1025086 SPECIAL WASHER
87 P1258087 FLAT HEAD SCREW
89 P1258089 TRUNNION
90 P1258090 HEX BOLT
91 P1258091 TRUNNION
92 P1258092 HEX BOLT
93 P1258093 LOCK HANDLE
94 P1258094 SCALE
95 P1258095 SCREW
96 P1258096 WASHER
97 P1258097 POINTER
98 P1258098 BRACKET
99 P1258099 CAP SCREW
100 P1258100 ADJUST GUIDE SHAFT
101 P1258101 HEX BOLT
102 P1258102 WASHER
103 P1258103 BLADE GUIDE
104 P1258104 BRACKET
105 P1258105 GUIDE BAR BRACKET
106 P1258106 BLADE GUARD
107 P1258107 INNER GUARD
108 PB02 HEX BOLT
109 P1258109 GUIDE BAR
110 P1025048 HAND WHEEL
111 P1258111 WASHER
112 P1258112 SNAP RING 12MM
113 P1258113 KNOB
114 P1258114 GEAR SHAFT
115 P1258115 GEAR BRACKET
116 P1258116 SHAFT
117 P1258117 KNOB WHEEL
118 P1258118 PHILLIPS HEAD SCREW
120 P1258120 SWITCH
121 P1258121 PHILLIPS HEAD SCREW
122 P1258122 BRUSH
123 P1258123 WASHER
124 P1258124 HEX NUT
125 P1258125 LABEL
131 P1258131 BEARING GUIDE
Page 24
-22- G1258 20" Bandsaw
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from
the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse,
negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty
and any and all warranties that may be implied by law, including any merchantability or fitness, for any particular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent
that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants.
In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and
any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special, or consequential damages arising from the use of our products.
To take advantage of this warranty, contact us by mail or phone and give us all the details. We will then
issue you a “Return Number’’, which must be clearly posted on the outside as well as the inside of the carton. We will not accept any item back without this number. Proof of purchase must accompany the merchandise.
The manufacturers reserve the right to change specifications at any time because they constantly strive to
achieve better quality equipment. We make every effort to ensure that our products meet high quality and
durability standards and we hope you never need to use this warranty.
Please feel free to write or call us if you have any questions about the machine or the manual.
Thank you again for your business and continued support. We hope to serve you again soon.
WARRANTY AND RETURNS
Page 25
CUT ALONG DOTTED LINE
10. Which benchtop tools do you own? Check all that apply.
___1" x 42" Belt Sander ___6" - 8" Grinder
___5" - 8" Drill Press ___Mini Lathe
___8" Table Saw ___10" - 12" Thickness Planer
___8" - 10" Bandsaw ___Scroll Saw
___Disc/Belt Sander ___Spindle/Belt Sander
___Mini Jointer
___Other__________________________________________________
11. How many of the machines checked above are Grizzly? ____________
12. Which portable/hand held power tools do you own? Check all that apply.
___Belt Sander ___Orbital Sander
___Biscuit Joiner ___Palm Sander
___Circular Saw ___Portable Planer
___Detail Sander ___Saber Saw
___Drill/Driver ___Reciprocating Saw
___Miter Saw ___Router
___Other__________________________________________________
13. What machines/supplies would you like Grizzly Industrial to carry?
___12" Table Saw ___Radial Arm Saw
___12" Jointer ___Panel Saw
___Combination Planer/Jointer ___Brass Hardware
___Paint & Finishing Supplies ___Lumber
___Contractor’s Supplies
___Other__________________________________________________
14. What new accessories would you like Grizzly Industrial to carry?
___Builders Hardware ___Hand Tools
___Fasteners ___Wood Components
___Other__________________________________________________
15. What other companies do you purchase your tools and supplies from?
__________________________________________________________
__________________________________________________________
16. Do you think your purchase represents good value?
___Yes ___No
17. Would you recommend Grizzly Imports to a friend?
___Yes ___No
18. Would you allow us to use your name as a reference for Grizzly customers
in your area? Note: We never use names more than three times.
___Yes ___No
19. Comments:_________________________________________________
__________________________________________________________
__________________________________________________________
__________________________________________________________
__________________________________________________________
1. How did you learn about us?
___Advertisement ___Friend
___Catalog ___Card Deck
___World Wide Web
___Other__________________________________________________
2. Which of the following magazines do you subscribe to.
___American Woodworker ___Practical Homeowner
___Cabinetmaker ___Shop Notes
___Family Handyman ___Today’s Homeowner
___Fine Homebuilding ___WOOD
___Fine Woodworking ___Wooden Boat
___Home Handyman ___Woodshop News
___Journal of Light Construction ___Woodsmith
___Old House Journal ___Woodwork
___Popular Mechanics ___Woodworker
___Popular Science ___Woodworker’s Journal
___Popular Woodworking ___Workbench
___Other__________________________________________________
3. Which of the following woodworking/remodeling shows do you watch?
___Backyard America ___The New Yankee Workshop
___Home Time ___This Old House
___The American Woodworker ___Woodwright’s Shop
___Other__________________________________________________
4. What is your annual household income?
___$20,000-$29,999 ___$60,000-$69,999
___$30,000-$39,999 ___$70,000-$79,999
___$40,000-$49,999 ___$80,000-$89,999
___$50,000-$59,999 ___$90,000 +
5. What is your age group?
___20-29 ___50-59
___30-39 ___60-69
___40-49 ___70 +
6. How long have you been a woodworker?
___0 - 2 Years ___8 - 20 Years
___2 - 8 Years ___20+ Years
7. How would you rank your woodworking skills?
___Simple ___Advanced
___Intermediate ___Master Craftsman
8. What stationary woodworking tools do you own? Check all that apply.
___Air Compressor ___Panel Saw
___Band Saw ___Planer
___Drill Press ___Power Feeder
___Drum Sander ___Radial Arm Saw
___Dust Collector ___Shaper
___Horizontal Boring Machine ___Spindle Sander
___Jointer ___Table Saw
___Lathe ___Vacuum Veneer Press
___Mortiser ___Wide Belt Sander
___Other__________________________________________________
9. How many of your woodworking machines are Grizzly? _____________
Name ____________________________________________________________________________________
Street ____________________________________________________________________________________
City ______________________________________________________________State________Zip_________
Phone Number_______________________E-Mail_______________________FAX________________________
MODEL # ______________________________Order #______________________________________________
The following information is given on a voluntary basis. It will be used for marketing purposes to help us develop better products and services. Of
course, all information is strictly confidential.
WARRANTY CARD
Page 26
FOLD ALONG DOTTED LINE
FOLD ALONG DOTTED LINE
GRIZZLY INDUSTRIAL, INC.
P.O. BOX 2069
BELLINGHAM, WA 98227-2069
Place
Stamp
Here
TAPE ALONG EDGES--PLEASE DO NOT STAPLE
Name_______________________________
Street_______________________________
City______________State______Zip______
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