International model 90-170B M1 14”
Deluxe Wood Cutting Bandsaw. This bandsaw has been carefully tested and inspected before
shipment and if properly used and maintained, will provide you with years of reliable service.
For your safety, as well as to ensure optimum performance and trouble-free operation, and to
get the most from your investment, please take the time to read this manual before assembling, installing and operating the unit.
The manual’s purpose is to familiarize you with the safe operation, basic function,and features
of this bandsaw as well as the set-up, maintenance and identification of its parts and components. This manual is not intended as a substitute for formal woodworking instruction, nor to
offer the user instruction in the craft of woodworking. If you are not sure about the safety of
performing a certain operation or procedure, do not proceed until you can confirm, from
knowledgeable and qualified sources, that it is safe to do so.
Once you’ve read through these instructions, keep this manual handy for future reference.
Disclaimer: The information and specifications in this
manual pertain to the unit as it was supplied from the
factory at the time of printing. Because we are committed to making constant improvements, General
International reserves the right to make changes to
components, parts or features of this unit as deemed
necessary,without prior notice and without obligation to
install any such changes on previously delivered units.
Reasonable care is taken at the factory to ensure that
the specifications and information in this manual corres-
ponds with that of the unit with which it was supplied.
However, special orders and “after factory” modifications may render some or all information in this manual
®
inapplicable to your machine. Further, as several generations of this model of bandsaw and several versions of
this manual may be in circulation, if you own an earlier
or later version of this unit, this manual may not depict
your machine exactly. If you have any doubts or questions contact your retailer or our support line with the
model and serial number of your unit for clarification.
GENERAL®& GENERAL®INTERNATIONAL WARRANTY
All component parts of General®, General® International and Excalibur by General
International ® products are carefully inspected during all stages of production and each unit
is thoroughly inspected upon completion of assembly.
Limited Lifetime Warranty
Because of our commitment to quality and customer satisfaction, General® and General®
International agree to repair or replace any part or component which upon examination,
proves to be defective in either workmanship or material to the original purchaser for the life
of the tool. However, the Limited Lifetime Warranty does not cover any product used for profes-
sional or commercial production purposes nor for industrial or educational applications. Such
cases are covered by our Standard 2-year Limited Warranty only.The Limited Lifetime Warranty
is also subject to the“Conditions and Exceptions” as listed below.
Standard 2-Year Limited Warranty
All products not covered by our lifetime warranty including products used in commercial,
industrial and educational applications are warranted for a period of 2 years (24 months) from
the date of purchase. General® and General® International agree to repair or replace any
part or component which upon examination, proves to be defective in either workmanship or
material to the original purchaser during this 2-year warranty period, subject to the “conditions
and exceptions” as listed below.
To file a Claim
To file a claim under our Standard 2-year Limited Warranty or under our Limited Lifetime
Warranty, all defective parts, components or machinery must be returned freight or postage
prepaid to General® International, or to a nearby distributor, repair center or other location
designated by General® International. For further details call our service department at 1-888949-1161 or your local distributor for assistance when filing your claim.
Along with the return of the product being claimed for warranty, a copy of the original proof
of purchase and a “letter of claim” must be included (a warranty claim form can also be used
and can be obtained, upon request, from General® International or an authorized distributor)
clearly stating the model and serial number of the unit (if applicable) and including an explanation of the complaint or presumed defect in material or workmanship.
CONDITIONS AND EXCEPTIONS:
This coverage is extended to the original purchaser only. Prior warranty registration is not
required but documented proof of purchase i.e. a copy of original sales invoice or receipt
showing the date and location of the purchase as well as the purchase price paid, must be
provided at the time of claim.
Warranty does not include failures, breakage or defects deemed after inspection by General®
or General® International to have been directly or indirectly caused by or resulting from;
improper use, or lack of or improper maintenance, misuse or abuse, negligence, accidents,
damage in handling or transport, or normal wear and tear of any generally considered consumable parts or components.
Repairs made without the written consent of General® Internationallwill void all warranty.
To help ensure safe operation, please take a moment to learn the machine’s applications and limitations, as well as potential hazards. General® International disclaims any real or implied warranty and
hold itself harmless for any injury that may result from the improper use of it’s equipment.
1. Do not operate the bandsaw when tired, distracted
or under the effects of drugs, alcohol or any medication that impairs reflexes or alertness.
2. The working area should be well lit, clean and free
of debris.
3. Keep children and visitors at a safe distance when
the bandsaw is in operation; do not permit them to
operate the bandsaw.
4. Childproof and tamper proof your shop and all
machinery with locks, master electrical switches
and switch keys, to prevent unauthorized or unsupervised use.
5. Stay alert! Give your work your undivided attention.
Even a momentary distraction can lead to serious
injury.
6. Fine particulate dust is a carcinogen that can be
hazardous to health. Work in a well-ventilated area
and whenever possible use a dust collector. Wear
face, eye, ear, respiratory and body protection devices.
7. Do not wear loose clothing, gloves, bracelets,
necklaces or other jewelry while the bandsaw is in
operation.
15. Use suitable workpiece support if the workpiece
does not have a flat surface.
16. Hold material firmly against the table.
17. Do not work on long stock without adequate sup-
port on the out feed end of the table.
18. If using a power feeder,stop the feeder before stop-
ping the bandsaw.
19. Do not push or force stock into the blade. The band-
saw will perform better and more safely when working at the rate for which it was designed.
20. Avoid working from awkward or off balance posi-
tions. Do not overreach and keep both feet on floor.
21. Keep guards in place and in working order. If a
guard must be removed for maintenance or cleaning be sure it is properly re-attached before using
the tool again.
22. Never leave the machine unattended while it is run-
ning or with the power on.
23. Use of parts and accessories NOT recommended
by
General® International may result in equip-
ment malfunction or risk of injury.
8. Be sure that adjusting wrenches, tools, drinks and
other clutter are removed from the machine and/or
the table surface before operating.
9. Keep hands well away from the blade and all mo-
ving parts. Use a brush, not hands, to clear
away chips and dust.
10. Adjust and position upper and lower blade guides
before starting to cut. Upper blade guide should be
adjusted to approximately 1/8” above the material
to be cut.
11. Adjust blade tension and tracking before starting to
cut.
12. Saw teeth must point down toward the table.
13. Be sure that the blade has gained full operating
speed before starting to cut.
14. Always use a clean, properly sharpened blade.
Dirty or dull blades are unsafe and can lead to
accidents.
24. Never stand on machinery. Serious injury could re-
sult if the tool is tipped over or if the cutting tool is
unintentionally contacted.
25. Always disconnect the machine from the power
source before servicing or changing accessories
such as blades, or before performing any maintenance or cleaning, or if the machine will be left unattended.
26. Make sure that the switch is in the “OFF” position be-
fore plugging in the power cord.
27. Make sure the tool is properly grounded. If equip-
ped with a 3-prong plug it should be used with a
three-pole receptacle. Never remove the third prong.
28. Do not use this bandsaw for other than its intended
use. If used for other purposes,
General® Interna-
tional disclaims any real or implied warranty and
holds itself harmless for any injury,which may result
from that use.
5
6
ELECTRICAL REQUIREMENTS
CIRCUIT CAPACITY
Make sure that the wires in your circuit are capable of
handling the amperage draw from your machine, as
well as any other machines that could be operating on
the same circuit. If you are unsure, consult a qualified
electrician. If the circuit breaker trips or the fuse blows
regularly, your machine may be operating on a circuit
that is close to its amperage draw capacity. However, if
an unusual amperage draw does not exist and a
power failure still occurs, contact a qualified technician
or our service department.
BEFORE CONNECTING THE MACHINE TO THE POWER SOURCE, VERIFY THAT THE VOLTAGE OF YOUR POWER SUPPLY CORRESPONDS WITH THE VOLTAGE SPECIFIED ON THE MOTOR I.D. NAMEPLATE. A POWER SOURCE WITH GREATER VOLTAGE THAN
NEEDED CAN RESULT IN SERIOUS INJURY TO THE USER AS WELL AS DAMAGE TO THE MACHINE. IF IN DOUBT, CONTACT A QUALIFIED ELECTRICIAN BEFORE CONNECTING TO THE POWER SOURCE.
THIS TOOL IS FOR INDOOR USE ONLY. DO NOT EXPOSE TO RAIN OR USE IN WET OR DAMP LOCATIONS.
EXTENSION CORDS
If you find it necessary to use an extension cord with your
machine, use only 3-wire extension cords that have 3prong grounding plug and a matching 3-pole receptacle that accepts the tool’s plug. Repair or replace a
damaged extension cord or plug immediately.
Make sure the cord rating is suitable for the amperage
listed on the motor I.D. plate. An undersized cord will
cause a drop in line voltage resulting in loss of power
and overheating. The accompanying chart shows the
correct size extension cord to be used based on cord
length and motor I.D. plate amp rating. If in doubt, use
the next heavier gauge. The smaller the number, the
heavier the gauge.
Carefully unpack and remove the unit and its components from its shipping container and check for missing or
damaged items as per the list of contents below.
NOTE: Please report any damaged or missing items to your GENERAL® INTERNATIONAL distributor immediately.
LIST OF CONTENTS
Once the parts have been removed from the packaging, you should have the following items:
Note: Deluxe Excalibur Universal Bandsaw Rip Fence System is packaged separately. Refer to the manual supplied
in the box with the Excalibuer Rip Fence for complete list
of contents.
B
C
D
E
ADDITIONAL REQUIREMENTS FOR SET UP
• Extra person for help with lifting
• Phillips screwdriver
• Flat head screwdriver
• 10 mm wrench
• 15 mm wrench
• Feeler gauge set
• Combination square
8
F
I
G
J
H
L
K
BASIC FUNCTIONS OF THE UNIT
This Deluxe 14" Wood Cutting Bandsaw is supplied with a
3/4" wide general purpose blade and is designed to
accommodate blade widths from 1/8" to 3/4". Ideal blade
length for this model 90-170B M1 is 112" (2845 mm).
Note: Generally speaking, because the upper wheel height is
somewhat adjustable (to allow for blade tensioning), a blade
length variation of plus or minus 1/2" from the “ideal blade
length” can be accommodated.
Maximum inboard width of cut (space between the blade
and the body of the saw A) is 13 1/2".
For cutting thicker stock or for resawing, the maximum
depth of cut B (or max. workpiece height) is 12".
An adjustable rip fence C is supplied to serve as a straightedge to guide the workpiece for longer rip cuts. The fence
can easily be removed and set aside when not required,
for example when making curved cuts.
A
B
C
PLACEMENT WITHIN THE SHOP / ESTABLISHING A SAFETY ZONE
THIS MODEL 90-170B M1 IS HEAVY. DO NOT OVER-EXERT. THE HELP OF AT LEAST ONE ASSISTANT OR A HOIST WILL BE NEEDED
FOR THE FOLLOWING STEP.
TO LIMIT THE RISK OF SERIOUS INJURY OR DAMAGE TO THE MACHINE, ANY EQUIPMENT USED TO LIFT THIS MACHINE SHOULD
HAVE A RATED CAPACITY IN EXCESS OF 293 LBS (133 KG).
Lifting and handling the machine
To limit the potential for damage in transport, this
bandsaw is shipped from the factory bolted to its
crate in the vertical position. With a forklift or hydraulic pallet jack, move the entire crate as close to the
final installation location as possible, and then uncrate the saw and remove the 4 bolts
to the crate using a 15 mm wrench.
A that secure it
A
PLACEMENT WITHIN THE SHOP
This machine should be installed and operated only on a
solid, flat and stable floor that is able to support the weight
of the bandsaw and the operator. Using the dimensions
shown as a guideline, plan for placement within your shop
that will allow the operator to work unencumbered and
unobstructed by foot traffic (either passing shop visitors or
other shop workers) or other tools or machinery.
ESTABLISHING A SAFETY ZONE
For shops with frequent visitors or multiple operators, it is
advisable to establish a Safety Zone around shop machinery. A clearly defined “no-go” zone on the floor around
each machine can help avoid accidents that could cause
injury to either the operator or the shop visitor.It is advisable
to take a few moments to either paint (using non-slip paint)
or using tape, define on the floor the limits or perimeter of each machines safety zone. Take steps to ensure that all
operators and shop visitors are aware that these areas are off limits whenever a machine is running for everyone
but the individual operating the unit.
73”
44
33”
1/2
”
9
CLEAN UP
The protective coating on the saw table prevents rust from
forming during shipping and storage. Remove it by rubbing with a rag dipped in kerosene, mineral sprits or paint
thinner. (Dispose of potentially flammable solvent-soaked
rags according to manufacturer’s safety recommendations.)
A putty knife,held flat to avoid scratching the surface, may
also be used to scrape off the coating followed by cleanup with solvent. Avoid rubbing the saw’s painted surfaces,
as many solvent-based products will remove paint.
To prevent rust, apply a light coating of paste wax or use
regular applications of any after-market surface protectant
or rust inhibitor.
Tip: With a screw driver, push a solvent-saturated rag into
the T-slots to remove the grease so the miter gauge will
slide freely.
ASSEMBLY INSTRUCTIONS
For your convenience this bandsaw is shipped from the factory partially assembled and requires only minimal
assembly and set up before being put into service.
SERIOUS PERSONAL INJURY COULD OCCUR IF YOU CONNECT THE SAW TO THE POWER SOURCE BEFORE YOU HAVE
COMPLETED THE INSTALLATION AND ASSEMBLY STEPS.
DO NOT CONNECT THE SAW TO THE POWER SOURCE UNTIL INSTRUCTED TO DO SO.
ATTACH THE STORAGE BRACKETS
This model 90-170B is supplied with convenient
onboard storage brackets to safely stow the rip fence
and miter gauge out of the way when not in use A.
Attach the rip fence storage bracket B and miter
gauge storage brackets C to the back of the saw as
shown in D, using the bolts and washers already
mounted to the saw.
ATTACHING THE TABLE
The worktable mounts on a bracket which allows
adjustment from flat (0°) to any angle up to 45° to the
right. Adjustments can be made easily with the angle
scale and lock knobs.
1. Remove the red insert A from the center of the
table and the table alignment pin B from the
table slot.
B
C
A
DA
B
E
C
2. Turn the table right side up.Verify that the long bolts
C in the center of each trunnion are pointing down.
10
D
3. Carefully move the table into position over the
table-tilt bracket D, guiding the saw blade through
the table slot E.
F
G
L
J
G
Note: If the long bolts have moved out of position, have
an assistant tap them into place with a screw driver.
4. Rotate the table 1/4 turn counterclockwise so that the
saw blade is now perpendicular to the table slot F.
5. Gently lower the table onto the bracket so the long
bolts C in the center of the trunnions pass through
the holes in the table-tilt bracket G.
M
N
N
8. Make sure that the blade is centered in the table
opening. If the blade is not centered, slide the table back or forward M until the blade is centered in
the table opening, then fully tighten the two lock
knobs, H.
I
H
K
6. Thread the two small lock knobs H onto the long
bolts I now protruding from the underside of the
table-tilt bracket and tighten loosely.
7. Attach the table tilt support bracket J to the rear of
the saw using the big lock knob K with the two flat
washers L already mounted on the frame.
O
P
9. Re-install the insert into the center of the table, with
the opening in the slot O facing the rear of the saw.
10.Re-install the table alignment pin into the table
slot P.
INSTALL THE FOOT BRAKE
1. Open the lower wheel cover door.
2. Attach the foot brake to the foot brake mounting bar
as shown in Q using the two supplied cap screws and
lock washers,in the assembly order shown in R.
3. Firmly tighten with the supplied 8 mm Allen key.
INSTALL THE FENCE ASSEMBLY
This model 90-170B M1 is equipped with an Excalibur Tfence and guide rail system.
Follow all assembly and adjustment instructions in the 90075A manual supplied in the box with the Excalibur
Universal Bandsaw Rip Fence System.
R
Q
11
BASIC ADJUSTMENTS AND CONTROLS
CONNECTING TO A POWER SOURCE
MAGNETIC SAFETY SWITCH
This model 90-170B is equipped with a MAGNETIC SAFETY
SWITCH located at the front, on the frame of the machine.
This magnetic switch is designed to protect the unit and the
user from power surges, power outages and unwanted or
unintentional start-up.
The switch assembly is equipped with a GREEN “ON” button
with protective cap B to prevent unwanted or unintentional start-up, and a RED spring loaded “OFF” button C. Once
the RED “OFF” button has been pressed, the machine can
only be started by turning the RED button to the right to
release the stop button it.
When you have finished using the machine be sure to unplug
the bandsaw from the power source.
TO REDUCE THE RISK OF SHOCK OR FIRE DO NOT OPERATE THE UNIT WITH A DAMAGED POWER CORD OR PLUG.
REPLACE DAMAGED CORD OR PLUG IMMEDIATELY.
TO AVOID UNEXPECTED OR UNINTENTIONAL START-UP,
MAKE SURE THAT THE POWER SWITCH IS IN THE OFF POSITION BEFORE CONNECTING TO A POWER SOURCE.
Refer back to the section entitled “ELECTRICAL REQUIREMENTS” and make sure all requirements and grounding instructions are followed.
Once the assembly has been completed, plug the
power cord into an appropriate outlet. The “POWER IN”
indicator light A will illuminate.
FOOT BRAKE
This bandsaw is also equipped with a FOOT BRAKE located at the bottom of the machine. This device allows for
immedia
te immobilization of the blade and machine
shut off.
Notice – The foot brake is not designed to function as the primary stop mechanism of this saw. The foot brake should be
used for emergency situations or any time it is necessary to
immobilize the blade quicker than normal. Under normal
working conditions the red stop button should be used as the
primary stop mechanism. Continuously using the foot brake
as the primary stop mechanism will lead to premature wear
of the brake and may cause damage to the motor.
12
THERMAL REL
AY / CIRCUIT BREAKER
TO AVOID UNEXPECTED OR UNINTENTIONAL START-UP BE
CERTAIN THAT THE POWER SWITCH HAS BEEN SET TO THE
OFF POSITION BEFORE RE-SETTING THE THERMAL RELAY.
To reset the thermal relay after it has been tripped: set the
power switch to the “off” position and press the thermal
relay re-set button D, then restart the machine.
The unit is equipped with a thermal relay (circuit breaker)
D located under the magnetic switch, to protect the motor
from power surges or spikes in line voltage. In the event of a
power surge, the thermal relay will be automatically tripped
thereby cutting off the power to the motor.
SWITCH OFF
MAGNETIC SAFETY SWITCH
FOOT BRAKE
SWITCH OFF
B
A
C
D
TILTING THE TABLE
A
The table can be tilted to any angle from 0° to 45° to the
right to allow for any type of bevel (or angle) cutting. Refer
to the table tilt angle indicator A located under the bandsaw table, to set the angle of the table to the desired position.
BEFORE MAKING ANY ADJUSTMENTS, MAKE SURE
THAT THE SWITCH IS IN THE “OFF” POSITION AND
THAT THE POWER CORD IS UNPLUGGED.
1. Loosen lock knobs C (below) and lock knob B (right)
located under the saw table.
B
2. Tilt the table until it is at the desired angle. (Refer to the
angle indicator A.)
3. Tighten the lock knobs to lock the table in position.
ADJUSTING THE 90º TABLE STOP AND RE-ALIGNING THE ANGLE POINTER
To ensure that your 90º cuts are square and that angled cuts are accurate with the angle indicator scale, the table
default position must be set to 90º to the blade and the angle indicator pointer must be set to read 0 when the table
is in the default (90º) position. To set the table-stop bolt:
E
D
C
1. Loosen lock knobs C and lock knob B.
2. Place a combination square D flat on the table
with the heel of the square flat against the saw
blade E.
3. Level the table until it is exactly 90° to the blade,
then tighten lock knobs C and B.
H
G
F
F
4. Using the supplied open end wrench, loosen the
jam nut F on the 90º table-stop bolt then adjust the
height of the bolt G until it touches the underside of
the table as shown in H.
5. Loosen the lock knobs B and C and make sure the
table is resting on the table-stop bolt H.
6. Check the square and make sure the table is still at
90° to the blade. If not, re-adjust the table-stop bolt.
I
K
J
8. With the table set to 90º and the stop bolt at the
correct height, make sure the table tilt angle indicator pointer I is set to read 0º.
9. If the pointer needs to be adjusted, loosen the
screw J on the pointer of the front trunnion and
adjust the pointer K to the 0 point on the scale.
Then re-tighten the screw to secure the pointer in
place.
7. Re-tighten jam nut F.
You will now be able to accurately return the table to the 90º position automatically without further adjustments and
scale reading for any angle other than 0 will also be accurate.
13
REMOVING/INSTALLING THE BLADE
Your bandsaw is designed to handle several blade widths ranging from 1/8” and 3/8” used for tight radius curves,
up to 1/2” and 3/4” for larger radius curves or for cutting thicker stock.
BLADE CLEARANCE
Note: When performing blade installation, removal, tensioning or
tracking, maximum clearance between the blade and both upper
and lower blade guide assemblies is required to minimize friction,
which would be damaging to the blade.
C
Move the upper & lower guide bearings away from the blade:
1. Using the supplied 3 mm Allen key, loosen set screw A.
2. Use a flat head screwdriver to make a quarter of a turn
toward the outside to the guide bearing B to obtain maximum blade clearance.
3. Re-tighten set screw A.
4. Repeat steps 1 to 3 with the other upper guide bearing and
two lower guide bearings.
Move the upper thrust bearing away from the blade
:
1. Loosen the upper thumb screw C on the upper blade guide
assembly.
2. Pull on the upper thrust bearing shaft D going back as far as
possible for maximum blade clearance.
3. Re-tighten the upper thumb screw C to lock the thrust bear-
ing in place.
Move the lower thrust bearing away from the blade
:
1. Loosen the upper thumb screw E on the lower blade guide
assembly.
2. Pull on the lower thrust bearing shaft F going back as far as
possible for maximum blade clearance.
3. Re-tighten the upper thumb screw E to lock the thrust bear-
ing in place.
A
B
D
F
E
Do Not Over-Loosen Blade Tension Mechanism! To avoid inadvertently unseating/disconnecting the tension mechanism, do not loosen the blade tension beyond the range shown on the tension scale
A. Loosen
the tension gradually, in increments, to avoid loosening too much.
B
A
1. Turn off the bandsaw and unplug the power cord.
2. Release blade tension by lifting handle B. It may
be necessary to also turn handle counterclock
wise C for the blade to be loose enough to remo-
C
D
E
3. Remove the insert from the center of the
table D.
4. Remove the table alignment pin E from the table
slot.
ve easily.
14
BLADE TEETH ARE SHARP.
USE CARE WHEN HANDLING A SAW BLADE.
5. Open the top and bottom wheel cover doors and
bring the left hand side of the loose blade toward
F
you and out of the left hand blade guard slot E.
Note: You may want to use a thick shop towel to handle the
loose blade or wear a pair of heavy duty work gloves.
6. With the blade perpendicular to the wheels, feed
the blade through the table slot to free it from the
saw F.
E
7. Carefully hang the blade on a hook in a safe, dry place in your workshop if it will be re-used, or dispose of it
safely if it is worn or damaged.
DO NOT ATTEMPT TO COIL UP THE BLADE AS IT WAS WHEN YOU FIRST PURCHASED IT AS IT HAS A TENDANCY TO POP
OPEN UNEXPECTEDLY AND COULD CAUSE INJURY.
BLADE SELECTION
There are a variety of different types of bandsaw blades on the market to suit various cutting applications.Your results
may vary based on usage, experience and personal preference.
Standard size - 112” (2845 mm) - replacement blades made from high carbon steel can be purchased in a variety of
widths from your General® International dealer under the following parts numbers:
•
#90170-B14:1/4” - 6 TPI, blade thickness: 0.65 mm
•
#90170-B12: 1/2” - 4 TPI, blade thickness: 0.65 mm
•
#90170-B38: 3/8” - 6 TPI, blade thickness: 0.50 mm
•
#90170-B34: 3/4” - 4 TPI, blade thickness: 0.65 mm
or (depending on availability) from your local tool dealer. These are standard sizes that should be readily available
in most areas. The use of any other size is not recommended and can lead to serious injury and/or damage to the
machine.
Some general guidelines to consider when choosing bandsaw blades:
• Wider blades with fewer teeth per inch are best suited to cutting straight lines, re-sawing and for sweeping curves,
but will not turn tight radius curves. They will cut quickly and aggressively but do have a tendency to bind (or get
stuck in the cut) if turned too sharply.
•Narrower, thinner blades with more teeth per inch will cut more slowly but can turn much tighter corners for cutting
more intricate work.
Common causes of blade breakage:
• Poor guide bearing alignment and adjustment.• Feeding the workpiece too quickly.
• Forcing or twisting a wide blade around a short radius.• Dull teeth.
• Setting blade guard assembly too high above the workpiece. • Too much blade tension.
• Lumpy or improperly finished braze or weld on the blade.• Continuous running of blade when not cutting.
To install a blade
1. Turn off the bandsaw and unplug the power cord.
:
BEWARE OF THE BLADE POPPING OPEN.
Note: You may want to use a thick shop towel to
handle the loose blade or wear a pair of heavy
duty work gloves for the following steps.
2. If you are installing a new blade, carefully remove the
blade from its package. Hold it firmly with one hand as
you remove the twist ties. Slowly separate the coils of
the blade until it unravels into one hoop.
15
Note: Steps 3 and 4 may be unnecessary if you’ve just removed a blade. (If needed, refer back to page 14.)
3. Remove the table alignment pin from the table slot and the red circular insert from the center of the table.
4. With the blade perpendicular to the wheels, guide it
through the table slot, then rotate the side of the blade
nearest you back toward the left side of the wheels.
B
5. Feed the blade into the left blade guard and around the
wheels. Make sure the blade teeth point forward A and
down B.
A
With the blade properly installed, proceed to blade tension
adjustments and blade tracking adjustments, as per instructions on the next few pages.
ADJUSTING BLADE TENSION
Determining ideal blade tension is somewhat subjective. It is learned through practice and experience and is somewhat dependant on personal preference and individual work habits.
A properly tensioned blade is critical to obtaining maximum performance from any bandsaw. A properly tensioned
blade will last longer and be much less likely to break prematurely. If the blade tension is too loose you will notice
that the blade will have a tendency to drift or slip off-line when cutting and you will have more difficulty controlling
your cuts. A blade that is tensioned too tightly will break prematurely and will be difficult to work with when making
tighter radius cuts.
The following information can be used as a guideline or starting point to assist you in determining ideal blade tension for your needs:
•
When working with wider blades, re-sawing taller stock, making straight cuts or wide sweeping curves tighter blade tensions will provide better results.
•
When working with narrower blades, sawing shorter stock and making tighter curved cuts are best performed using less tension
This model 90-170B M1 bandsaw is equipped with a blade tension scale, which can be used as a reference for the
ideal setting with various blade widths.
Do Not Over-Loosen Blade Tension Mechanism! To avoid inadvertently unseating/disconnecting the tension mechanism, do not loosen the blade tension beyond the range shown on the tension scale. Loosen
the tension gradually, in increments, and retighten the tension lever periodically as you go to verify on the
tension scale and avoid loosening too much.
B
A
1. Refering to the blade tension scale A, set the blade
tension to correspond with the width of the blade
installed on your bandsaw. Adjust the blade tension by lifting the blade tension handle B, then by
turning it:
- Clockwise to tighten
- Counter-clockwise to loosen the blade tension.
C
2. With the saw turned off and the tension lever
lowered, press against the side of the blade to test
the tautness of the blade C. For ideal results with
most blade widths and cutting applications the
blade should flex in no more than 1/4" to 3/8".
3. Make a test cut on a sample piece of wood and if
needed re-adjust the blade tension
16
Note: To prolong the life of the blade whenever the bandsaw is not in use for prolonged periods (more than 24 hours),
release the blade tension lever to remove tension from the blade, Over time, maintaining tension on a blade that is not
in use will cause the blade to deform, by taking the shape of the wheels at both extremities. This can weaken the blade
and cause premature breakage.
ADJUSTING BLADE TRACKING
3 mm - 1/8"
B
Blade tracking means centering the blade on the wheels A.
Ideally, the blade should stay relatively centered on both
A
the upper and lower wheels.
Due to natural variations in castings, blade thickness or den-
sity and tire wear, absolute perfect centering alignment is
rarely attainable. A slight misalignment of the blade on the
wheels is inevitable and as long as it is kept to a minimum
(following the steps listed below) will not hinder the performance of the saw.
This misalignment is controlled and kept to a minimum by
adjusting the tilt angle of the upper wheel.
When adjusting blade tracking to center the blade on the wheels and assuming that perfect centering is not attainable, it is preferable to have the blade slightly off-center towards the front of the wheels rather than towards the rear
because the teeth on most bandsaw blades have alternating hook (one inner, one outer) – therefore if the blade is
centered too far back on the wheel (or if the blade tension is too tight), inner hooked teeth will dig into the wheel
tire and cause premature wear of the tire.
Nonetheless, to avoid having the blade come off of the wheels on it’s own during operation, the front edge of the
blades teeth should never be any closer than 3 mm (1/8”) from the front edge of the wheel B.
BLADE CLEARANCE
Note: As previously stated, when performing blade installation, removal, tensioning or tracking, maximum clearance
between the blade and both upper and lower bearing assemblies is required to minimize friction, which would be
damaging to the blade. Refer back and follow the instructions for “blade clearance” before performing blade tracking adjustments.
To adjust the blade tracking:
1. Open the upper wheel cover door then rotate the wheel
slowly forward by hand A and check the position of the
blade on the wheel. The blade should remain as centered as possible on the wheel as it turns B.
2. If the blade tracking must be adjusted, loosen the lock
nut C on the tracking adjustment knobs D, then turn the
knobs:
-Clockwise if the blade moves toward the front of
the wheel. This tilts the top of the wheel to the back
and moves the blade toward the center.
-Counterclockwise if the blade moves toward the
back edge. This tilts the top of the wheel to the front
and moves the blade toward the center.
Note: Turn the tracking knobs in 1/2 turn increments, re-check
and adjust again as needed.
3. With the tracking set, re-tighten lock nuts C.
Note: The upper and lower wheels are factory set to allow for easy and
optimal blade tracking adjustments using the primary blade tracking
adjustment knobs, which adjusts the angle of tilt of the upper wheel. In
extremely rare cases, if acceptable blade tracking cannot be attained
through the primary adjustment it may eventually become necessary to
make minor adjustments to the angle of tilt of the lower wheel. The four
bolts E may be adjusted in or out to tilt the lower wheel up/down or
left/right as needed.
A
D
B
C
E
17
ADJUSTING THE UPPER / LOWER BLADE GUIDES ASSEMBLIES
The guide bearings A keep the blade from moving from
side to side during cutting and must be snug but not
B
1/32"
touching the blade in order to ensure accurate cuts. The
space between each guide bearing and the blade must
not exceed 0.02" (the thickness of a sheet of paper). If less
space is left, the blade will get stuck or jammed between
both bearings. Too much friction will cause blade to overheat and break.
C
0.02"
0.02"
Also, the guide bearings must remain at least 1/32” behind the blade teeth to prevent damage to the blade B.
The thrust bearing C keeps the blade from moving back
and out of position when the work is being fed into the
blade and must be very close to the back of the blade to
A
prevent damage to the blade during cutting.
Note: Before adjusting the upper and lower blade guides assemblies, make sure the blade is tensioned and tracking properly. Adjust the upper and lower blade guides assemblies after each blade tension and tracking adjustment. Whenever the
upper guide bearings and thrust bearing are adjusted, the lower guide bearings and thrust bearing should also be adjusted.
TO AVOID INJURY, MAKE SURE THAT THE POWER SWITCH IS IN THE “OFF” POSITION AND THAT THE POWER CORD IS
UNPLUGGED BEFORE PERFORMING ANY ADJUSTMENTS ON THE BANDSAW.
Adjust the positioning of the upper guide bearings:
C
1. Using the supplied 3 mm Allen key, loosen set
screw, A.
2.
Use a flat head screwdriver to make a quarter of a
turn (approx.) toward the inside to the guide bearing
B, to obtain a space of 0.02" (the thickness of a sheet
of paper) between the bearing and the blade.
Tip: Place a feeler gauge C or sheet of paper between the
bearing and the blade to make sure there is a 0.02" space.
3. Re-tighten set screw A to lock the guide bearing in
B
A
position.
4. Repeat steps 1 to 3 with the other upper guide bearing.
F
1/32"
5. Loosen the lower thumb screw D.
6.
Move the upper guide bearing shaft in or out E until
the guide bearing are at least 1/32" behind the
blade teeth, (do not protrude past the hollowed part
G
E
of the teeth of the blade F.
7. Re-tighten the lower thumb screw D.
D
Adjust the positioning of the upper thrust bearing:
8. Loosen the upper thumb screw G.
9. Move the
upper thrust bearing shaft in or out H
until the thrust bearing barely touches the blade (is
1/64" behind the back of the blade I).
10. Re-tighten the upper thumb screw G.
Adjust the positioning of the lower guide bearings and thrust bearing:
Repeat steps 1 to 10 with the lower guide bearings and thrust bearing.
18
I
1/64"
H
CHANGING SPEED SETTINGS
This model 90-170B has 2 different speed settings; low and high.
- Low speed is to be used for cutting soft woods over 4"
in height or hard woods over 2" in height.
- High speed is best for cutting soft woods under 4" in
height or hard woods under 2" in height.
Note: If wood starts to burn at high speed, stop and change to the
lower speed setting.
BEFORE MAKING ANY ADJUSTMENTS, MAKE SURE THAT
THE SWITCH IS IN THE “OFF” POSITION AND THAT THE
POWER CORD IS UNPLUGGED.
At the back of the bandsaw, just next to the motor, there is a
ratchet lever A for loosening the tension on the drive belt.When
you pull it out as shown in B, it disengages for resetting.When you
release it, it engages the bolt for screwing or unscrewing C.
1. Unscrew the bolt a few turns counterclockwise then lift the
motor by hand D and tighten ratchet lever A to lock the
motor in position. This will loosen the drive belt enough to
move it between one set of pulleys and the other.
2. Open the lower wheel cover door.
3. To set the bandsaw speed to the slower setting; 2300 Lin.
FPM (690 MPM), place the belt on the frontmost set of pulleys as in E.
4. To set the bandsaw speed to the faster setting; 3250 Lin.
FPM (975 MPM), place the belt on the rearmost set of pulleys as in F.
Having repositioned the belt, set the motor back to it’s initial
5.
position to tighten the belt around the pulleys, then turn the
ratchet lever clockwise until it is tight and the motor does
not move.
D
A
B
E
C
F
ADJUSTING THE BLADE GUARD FOR DEPTH OF CUT
The blade guard can be moved up or down to accommodate the height of the work to be cut A. To prevent the blade (which is flexible and which would not otherwise be
supported) from slipping out of position during cutting, and
to reduce risks of injuries, a minimum amount of blade
should be exposed.
The blade guard should be set 1/8” - 1/4” above the workpiece B to prevent the blade from flexing out of position or offline during cutting.
Adjust the height of the blade guard to suit the thickness of
the workpiece as follows:
BEFORE MAKING ANY ADJUSTMENTS, MAKE SURE
THAT THE SWITCH IS IN THE “OFF” POSITION AND
THAT THE POWER CORD IS UNPLUGGED.
1. Make sure the bandsaw is turned off and the power
cord is disconnected from the power source.
2. Loosen the lock knob C.
3. Move the blade guide assembly up or down by turningthe handwheel D. Then re-tighten the lock knob C.
Note: The depth gauge E on the blade guard can be used as a
reference but it is not intended for high precision measurements.
A
1/8”- 1/4”
B
RAISE
C
D
LOWER
E
19
OPERATING INSTRUCTIONS
CONNECTING TO A DUST COLLECTOR
This model 90-170B is equiped with two built-in 4" diameter
dust chutes to accommodate connection to a dust collector
(not included).
Be sure to use appropriate sized hose and fittings (not included) and check that all connections are sealed tightly to help
minimize airborne dust.
If you do not already own a dust collection system consider
contacting your General® International distributor for information on our complete line of dust collection systems and
accessories or visit our Web Site at: www.general.ca.
CHECKLIST BEFORE STARTING
NOTE: Now that you have completed the four adjustment steps which are an essential part of safe, accurate bandsaw
operation, it would be a good idea to make yourself a checklist as follows to ensure that each adjustment to the bandsaw
is made in the proper order starting with the general safety precaution:
1.Turn off the bandsaw and unplug the power cord.
2.Adjust blade tension.
3.Adjust blade tracking.
4.Adjust upper blade guides and thrust bearing.
5.Adjust lower blade guides and thrust bearing.
These additional safety measures should be be included in your checklist:
6.Make sure all the blade guards are in place.
7.Make sure the bandsaw table and work area in general are clean and free of sawdust and debris.
These steps should always be followed when any adjustment is performed, the blade is changed, or periodically as vibra-
tion and normal wear and tear on the machine could throw these parts out of alignment.
OPERATIONS STEP-BY-STEP
TO REDUCE THE RISK OF DAMAGE TO THE BANDSAW OR THE WORKPIECE, AS WELL AS A POTENTIAL FOR PERSONAL
INJURY, AFTER INITIAL SET-UP AS WELL AS BEFORE EACH USE, MAKE SURE THAT EVERYTHING IS SECURELY INSTALLED AND
THAT ALL FASTENERS AND MOVING PARTS ON THIS BANDSAW ARE LOCKED IN PLACE BEFORE STARTING THE MACHINE.
Trace the cutting line on your workpiece with a pencil.
1.
2. Set the height of the blade guard according to the thickness of your workpiece (see section: “Adjusting the bla-
de guard for depth of cut”.)
3. If a dust collector is connected to your bandsaw, turn it on.
MAKE SURE TO HAVE ON SAFETY GLASSES AT ALL TIMES WHEN USING THE BANDSAW.
MAKE SURE YOU ARE WEARING SAFE APPROPRIATE WORKSHOP ATTIRE. ROLL UP LONG SLEEVES, SECURE LONG HAIR
AND REMOVE ANY JEWELRY: WATCHES, RINGS, BRACELETS OR ANYTHING THAT COULD GET STUCK INTO THE MOVING
PARTS OF THE BANDSAW, POTENTIALLY CAUSING SERIOUS INJURIES.
Push the green “START” button to start the bandsaw.
4.
Note: The safety pin must first be removed from the start button.
5. Align the cutting line on your workpiece with the blade and feed the workpiece into the blade.
Tip: The use of a roller stand provides an extra support for more convenience when working with longer workpieces.
TO STOP THE MACHINE
Push on the RED “STOP” panel and wait for the blade to come to a complete stop.
1.
2. Turn your dust collector off.
20
USING THE MITER GAUGE
B
Using the miter gauge supplied with your bandsaw allows for
easier and safer sawing by providing workpiece support
when cutting straight (90°) or angled ends (0° to 30°).
The miter gauge rides in either the left or right table slot A
and can be set to any angle up to 30° to the left or right. It
also acts as a feeder for advancing smaller workpieces
through the blade with reduced risk of injury to the hands.
To use a setting other than 90°, loosen the locking handle B
by turning it counterclockwise. Rotate the miter head to the
required angle, shown on the angle indicator C. Then turn
the locking handle B clockwise to tighten it.
USING THE RIP FENCE
1. Set the fence down on the rail either to the left or right of the
blade.
Note: For narrow workpieces that fit between the frame of the saw
and the blade A, position the fence at the left side of the blade. For
cutting longer or wider workpieces, position the fence, on the right
side of the saw blade.
2. Adjust the positioning of the fence on the rail so that the
distance from the inside face of the rip fence to the blade matches the required width of cut.
A
A
B
A
C
3. Lock down the fence locking handle B.
MAKE SURE TO LOCK THE FENCE IN PLACE BEFORE STARTING TO CUT AGAINST THE RIP FENCE.
lock
CUTTING CURVES
•When cutting curves, carefully turn the workpiece so the blade follows without twisting.If the curve is so sharp that
you repeatedly back up and cut new kerf, use a narrower blade, or a blade with more set (teeth further apart).
When a blade has more set, the workpiece turns easier but the cut is rougher.
•When changing a cut, do not withdraw the workpiece from the blade. The blade may get drawn off the wheels.
•To change a cut, turn the workpiece and cut your way out through the waste material area.
•When cutting long curves, make relief cuts as you go along.
CUTTING CIRCLES
1. Adjust the blade guard assembly to 1/8" above the
workpiece.
2. Use both hands while feeding the work into the blade.
Hold the workpiece firmly against the table. Use gentle
pressure. Do not force the work. Allow the blade to cut.
MIN. CIRCLE
DIAMETER
3. The smallest diameter circle that can be cut is determined by the width of the blade. For example, a 1/4"
wide blade will cut a minimum diameter of approximately 1-1/2" .
BLADE WIDTH
21
PERIODIC MAINTENANCE & LUBRICATION
ALWAYS DISCONNECT THE MACHINE FROM THE POWER SOURCE BEFORE PERFORMING ANY LUBRICATION OR MAINTENANCE.
LUBRICATION
A
B
Keep the rack and pinion A, blade tension adjustment screw B, as well as the table trunnion C, well greased and
free of dust or debris.
Clean and remove dust, debris, and old grease after every 10-15 hours of use. After cleaning, reapply grease as
needed. (Use any all purpose grease.)
The motor and all bearings are sealed and permanently lubricated – no further lubrication is required. No other
part of this bandsaw needs lubrication.
C
PERIODIC MAINTENANCE
NEVER OPERATE THE BANDSAW WITH ANY DAMAGED PART. REPLACE A DAMAGED PART AT THE FIRST VISIBLE SIGNS OF DAMAGE.
1. Inspect/test the ON/OFF switch before each use. Do not operate the bandsaw with a damaged switch; replace
a damaged switch immediately.
2. Periodically inspect the power cord/plug and the blade for damage.
TO AVOID EYE INJURY FROM BLOWING DEBRIS, WEAR SAFETY GOGGLES WHEN BLOWING OUT SAWDUST.
3. Keep the machine clean and free of sawdust. Frequently blow out or vacuum up the sawdust and wipe down
the machine occasionally with a damp rag.
Note: The wheels must always be kept clean. Dirt on the wheels will cause blade slippage.
4. Do not allow dirt, pitch or gum to build up on the table, blade, guide/thrust bearings. Clean as needed with
gum and pitch remover.
Note: Do not immerse the bearings in the gum and pitch remover.
To prevent rust from forming on the unpainted cast iron of the table, and so that the wood slides easily while
5.
cutting, apply a light coating of paste wax or use regular applications of any after-market surface protectant
or rust inhibitor.
22
REQUIRED MAINTENANCE
ALWAYS DISCONNECT THE MACHINE FROM THE POWER SOURCE BEFORE PERFORMING ANY MAINTENANCE.
REPLACING THE BANDSAW BLADE
The blade should be replaced when worn out. Refer to the following symptoms to determine whether or not it is
time to replace the blade:
- It is not cutting as fast.
- It is not able to follow a cutting line as it used to.
REPLACING THE UPPER AND LOWER BLADE GUIDES AND THRUST BEARINGS
Blade guides and thrust bearings should be verified each time the blade is replaced. Check if they turn well. If not,
the blade will get stuck or jammed between them and will wear
A
B
prematurely.
C
D
1. Turn off the bandsaw and unplug the power cord.
2. Release the blade tension by lifting handle A.
3. Using a 10 mm wrench, loosen but do not removethe two bolts B and remove the blade guard.
F
G
6. Remove the thrust bearing mounting shaft E
7. Remove the blade guide mounting shaft G.
9. Install a new bearing on the mounting shaft then re-install the C-ring.
4. Using a 10 mm wrench, loosen bolt C and remove
the upper blade guides/thrust bearing assembly.
5. Loosen the upper thumb screw D and lower thumb
screw E.
8. Use C-ring pliers H to remove the "C ring" I and slide
the thrust bearing off the shaft J.
E
10. Put the bearing and mounting shaft assembly back in place, and tighten the thumb screw.
11. Repeat steps 8 to 10 with the blade guide bearings.
12. Re-install the upper blade guides/thrust bearing assembly and blade-guard.
Repeat steps 5 to 10 with the lower guide bearings and thrust bearing.
23
REPLACING THE WHEEL TIRE
Wheel tires must be replaced if they get worn out or damaged. (If it is worn out, the blade will not track straight on
the wheels.)
Use a flat screwdriver to remove the tire from the groove
on the wheel, then install a new tire.
Note: When replacing the tires, stretch them around the
wheels but do not glue them on.
REPLACING THE LOWER WHEEL BRUSH
The lo
wer wheel cover door is equipped with a cleaning
brush A that prevents pitch and sawdust build up on the
lower tire. Any pitch and sawdust that builds up on the
upper wheel tire should be removed with a stiff brush or
scraped off with a piece of wood.
Note: To avoid damaging the tire do not use a sharp knife or
any kind of solvent to remove pitch build up.
Verify that the brush keeps the lower wheel surface clean
at all times. With use and normal wear over time, the brush
hairs will soften and will not clean the surface of the wheel
as well. You then must replace the brush.
A
REPLACING LOWER WHEEL MOTOR BELT
The lower wheel is driven by one belt mounted on either of the two pulleys powered by the motor. The belt’s tension
should be verified upon reception of the machine, then every 6 months. Slightly push on the belt with your finger.
The belt must not move more than 1/8". If the belt becomes too loose due to wear or if a breakage occurs, you
must replace it.
1. Turn off power and disconnect the bandsaw from the power source to avoid unintentional start-up.
2. If needed, loosen the belt (if needed, refer back to section “Changing speed settings”, on page 19).
3. Remove the belt from the groove in the pulleys and install a new one.
4. Having installed a new belt, set the motor back to it’s initial position to tighten the belt around the pulleys, then
turn the ratchet lever clockwise until it is tight and the motor does not move.
FRONT TO BACK TABLE TILT ADJUSTMENTS
If needed,front to back table tilt adjustment can be done as follows:
Using the supplied open end wrench, loosen bolts A and adjust
bolts B as needed, to tilt the table either slightly forward or
slightly backward.
A
B
A
24
RECOMMENDED OPTIONAL ACCESSORIES
We offer a large variety of products to help you increase convenience,productivity,accuracy and safety when
using your bandsaw Here’s a small sampling of optional accessories available from your local General
International dealer.
For more information about our products, please visit our website at www.general.ca
DUST COLLECTORS
Dust collectors contribute to
a cleaner more healthful
workshop environment.
We offer a wide selection of
top quality dust collectors to
suit all your shop needs.
Mobile Base - #50-025
Easily roll your bandsaw anywhere in your shop.
Load capacity: 500 LBS. Wheels lock when
equipment is in use.
Roller Stand
item #50-150
item #50-160
item #50-170
We offer a selection of
roller stands to suit all
your shop needs.