General 90-170B M1 User Manual

SETUP & OPERATION MANUAL
VERSION 5_NOVEMBER 12/12 (92207612) © Copyright General® International 11/2012
MODEL
#90-170B M1
DELUXE 14” WOOD CUTTING BANDSAW
FEATURES
Heavy-duty one-piece frame designed for added stability. Requires no further assem­bly.
Dynamically-balanced cast-iron wheels with replaceable rubber tires.
Solid, high quality, precision machined, ribbed cast-iron table with 45° right tilting action for bevel cuts.
Deluxe upper and lower blade guide bearings included.
2 cutting speeds for excellent results in either hard or soft woods.
Precision metal miter gauge and dual miter slots in table for stable precision cross cuts on either side of the blade.
Deluxe Excalibur bandsaw rip fence sys­tem with curved resaw guide block.
Onboard storage mounts for miter gauge and rip fence.
Smooth rack and pinion upper blade guard adjustment.
Quick release blade tension lever for fast blade changes.
2 built-in 4” diameter dust chutes for better dust collection.
Magnetic safety switch. Large 12” resaw capacity. 3/4” blade included. Safety foot brake simultaneously slows
down the blade and disconnects electri­cal circuit for quick blade stoppage and emergency shut-off.
SPECIFICATIONS
WHEEL SIZE 14” (356 mm)
WHEEL SPEEDS (2) 588/840 RPM
MAXIMUM BLADE
WIDTH
3⁄4” (19 mm) MINIMUM BLADE
WIDTH
1⁄8” (3 mm) BLADE LENGTH
112” (2845 mm) BLADE SPEEDS (2)
2300 & 3250 Lin. FPM (690/975 Lin. MPM) T
ABLE SIZE
16” x 20” (406 x 508 mm) T
ABLE TILT
0°- 45° (Right) T
ABLE HEIGHT
36 1⁄2” (927 mm) MAXIMUM
WIDTH OF CUT
13 1⁄2” (343 mm) MAXIMUM DEPTH OF CUT
12” (305 mm) DUST COLLECTION POR
T
2 x 4” (102 mm) B
ASE DIMENSIONS (L x W)
25” x 15” (635 x 381 mm) MO
TOR
1 1⁄2 HP, 110V, 1PH, 12.5A WEIGHT
293 LBS (133 kg)
GENERAL® INTERNATIONAL
8360 Champ-d’Eau, Montreal (Quebec) Canada H1P 1Y3
Telephone (514) 326-1161 • Fax (514) 326-5555 • www.general.ca
THANK YOU for choosing this General
®
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.
TABLE OF CONTENTS
Rules for safe operation . . . . . . . . . . . . . . .5
Electrical requirements . . . . . . . . . . . . . . .6
Circuit capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Extension cords . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6
Identification of main parts and
components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
Unpacking . . . . . . . . . . . . . . . . . . . . . . . .8
List of contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8
Additional requirements for set up . . . . . . . . . . . . .8
Basic functions of the unit . . . . . . . . . . . . .9
Placement within the shop / Establishing a
safety zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
Placement within the shop . . . . . . . . . . . . . . . . . . .9
Establishing a safety zone . . . . . . . . . . . . . . . . . . . .9
Clean up . . . . . . . . . . . . . . . . . . . . . . . . .10
Assembly instructions . . . . . . . . . . . . . . .10
Attach the storage brackets . . . . . . . . . . . . . . . . . .10
Attaching the table . . . . . . . . . . . . . . . . . . . . . . . . .10
Install the foot brake . . . . . . . . . . . . . . . . . . . . . . . .11
Install the fence assembly . . . . . . . . . . . .11
Basic Adjustments & Controls . . . . . . . . . .12
Connecting to a power source . . . . . . . . . . . . . . .12
Magnetic safety switch . . . . . . . . . . . . . . . . . . . . . .12
Thermal relay / Circuit breaker . . . . . . . . . . . . . . .12
Foot brake . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12
Tilting the table . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Adjusting the 90º table stop and re-aligning
the angle pointer . . . . . . . . . . . . . . . . . . . . . . . . . . . .13
Removing / Installing the blade . . . . . . . . . . . . . .14
Blade Clearance . . . . . . . . . . . . . . . . . . . . . . . . . . .14
Blade Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . .15
Adjusting blade tension . . . . . . . . . . . . . . . . . . . . .16
Adjusting blade tracking . . . . . . . . . . . . . . . . . . . .17
Adjusting the upper/lower blade guides
assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
Changing speed settings . . . . . . . . . . . . . . . . . . . .19
Adjusting the blade guard for depth of cut . . . .19
Operating Instructions . . . . . . . . . . . . . . .20
Connecting to dust collector . . . . . . . . . . . . . . . . .20
Checklist before starting . . . . . . . . . . . . . . . . . . . . .20
Operations step-by-step . . . . . . . . . . . . . . . . . . . . .20
To stop the machine . . . . . . . . . . . . . . . . . . . . . . . .20
Using the miter gauge . . . . . . . . . . . . . . . . . . . . . .21
Using the rip fence . . . . . . . . . . . . . . . . . . . . . . . . .21
Cutting curves . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Cutting circles . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21
Periodic Maintenance & Lubrication . . . . . .22
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22
Periodic maintenance . . . . . . . . . . . . . . . . . . . . . .22
Required Maintenance . . . . . . . . . . . . . . .23
Replacing the bandsaw blade . . . . . . . . . . . . . . .23
Replacing the upper and lower blade guides
and thrust bearings . . . . . . . . . . . . . . . . . . . . . . . . .23
Replacing the wheel tire . . . . . . . . . . . . . . . . . . . .24
Replacing the lower wheel brush . . . . . . . . . . . . .24
Replacing the lower wheel motor belt . . . . . . . . .24
Front to back table tilt adjustment . . . . . . . . . . . .24
Recommended optional accessories . . . . .25
Parts list & diagrams . . . . . . . . . . . . . .26-30
Wiring Diagrams . . . . . . . . . . . . . . . . . . . .31
Rules for Safe Operation
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.
TABLE - MINIMUM GAUGE FOR CORD
AMPERE
RATING
TOTAL LENGTH OF CORD IN FEET
110 VOLTS 25 FEET 50 FEET 100 FEET 150 FEET
220 VOLTS 50 FEET 100 FEET 200 FEET 300 FEET
AWG
< 5
------->
18 16 16 14
6 TO 10
------->
18 16 14 12
10 TO 12
------->
16 16 14 12
12 TO 16
------->
14 12 * NR * NR
* NR = Not Recommended
IDENTIFICATION OF MAIN PARTS AND COMPONENTS
FRONT VIEW
A- BLADE TENSION ADJUSTMENT HANDLE B- UPPER WHEEL COVER DOOR LOCK KNOB C- BLADE GUARD D- RIP FENCE E- RESAW GUIDE BLOCK F- MITER GAUGE G- TABLE ALIGNMENT PIN H- FENCE FRONT RAIL I- LOWER WHEEL COVER DOOR LOCK KNOB J- FOOT BRAKE K- MAGNETIC SAFETY SWITCH
REAR VIEW
A
B
LN
M
O
Q
R
S
P
K
C
E
D
F
G
H
I
L- BLADE TRACKING ADJUSTMENT KNOBS M- BLADE GUARD ADJUSTMENT HANDWHEEL N- BLADE GUARD LOCK KNOB O- UPPER BLADE GUIDES P- REAR FENCE RAIL Q- TABLE TILT LOCK KNOB R- DUST OUTLET S- MOTOR PIVOT LOCKING LEVER
J
7
UNPACKING
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:
QTY
A- BANDSAW (NOT SHOWN) . . . . . . . . . . . . . . . . . . . . . . .1
B- TABLE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
C- TABLE LOCK KNOB . . . . . . . . . . . . . . . . . . . . . . . . . . .2
D- MITER GAUGE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
E- MITER GAUGE STORAGE BRACKET . . . . . . . . . . . . . . .1
F- RIP FENCE STORAGE BRACKET . . . . . . . . . . . . . . . . . .1
G- 8 MM ALLEN KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
H- 3 MM ALLEN KEY . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
I- 10-12 MM OPEN END WRENCH . . . . . . . . . . . . . . . . .1
J- FOOT BRAKE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
K- CAP SCREW . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
L- LOCK WASHER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
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 turning the 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 remove the 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.
Blades
#90170-B14
1/4” - 6 TPI, blade thickness: 0.65 mm
#90170-B38
3/8” - 6 TPI, blade thickness: 0.50 mm
#90170-B12
1/2” - 4 TPI, blade thickness: 0.65 mm
#90170-B34
3/4” - 4 TPI, blade thickness: 0.65 mm
NOTES
25
3
4
5
6
7
8
9a
10
2
1C
11
12
13
14
15
16
22
23A
17
18
19
21
24
25
26
27
36
35B
34
32B
31
15
30
29
28
27
33
38
39
40
41
43
44
40
45
50
49
47
46
55
51
52
55
53
54
56
55
42
58
57
55
56
69
63
55
68a
17
16
67
60
62
59
63
64
65
61
70
71
72
37
48
20
78
84
81
82
83
79
80
77
86
23A-2
23A
23A-3
23A-4
23A-5
23A-1
23A-9
23A-8
23A-7
23A-6
23A-10
MAG. SWITCH ASSY
23A
73
74
85
75
76
66-1
66-2
88
87a
90
150
MAIN ASSEMBLY
26
60
75
60
75
90
45
30
30
45
140
141A
134
135
103
107 108 109 110 111 112 113
102
101
104
114
103
120
115
101
102
119
118
117
116
115
125
126
127
118
124
123
129
130
102
131
132
133
138
122
121
103
101
139
133
128a
141A-5
141A-4
141A-1
141A-2
141A-3
141A-6
142
143
144
145
146
147
148
149
145
127
126
125
153
122
151
150
152
128
129
127
166
167
118
126
160
159
158
161
103
162
159
164
163
102
147
168
169
170
127
126
TABLE ASSEMBLY
27
PARTS LIST
90-170B M1
REF # PART. N0. DESCRIPTION SPECIFICATION QTY
1C 90170B-001C SAW FRAME 1 2 90170-002 LOCK WASHER 1/2" 1 3 90170-003 WASHER 1/2" 1 4 90170-004 SQUARE NUT 1 5 90170-005 POINTER 1 6 90170-006 SPRING 1 7 90170-007 HANDLE 1 8 90170-008 WASHER 1 9A 90170-009A UPPER WHEEL BRACKET 1 10 90170-010 SCREW 1 11 90170-011 UPPER WHEEL SHAFT 1 12 90170-012 BEARING 6202ZZ 2 13 90170-013 C-RING R-35 2 14 90170-014 UPPER WHEEL 1 15 90170-015 TIRE 1 16 90170-016 WASHER 1/4" 1 17 90170-017 LOCK WASHER 1/4" 1 18 90170-018 HEX BOLT 1/4"-1/4" 1 19 90170-019 BLADE (SEE 90170-B34) 1 20 90170-020 HINGE PIN 4 21 90170-021 UPPER DOOR 1 22 90170-022 NUT 1/2" 2 23A 90170B-023A SWITCH ASSEMBLY 1 23A-1 90170B-023A-1 ON SWITCH 1 23A-2 90170B-023A-2 CONTACTOR 1 23A-3 90170B-023A-3 POWER LIGHT 1 23A-4 90170B-023A-4 OFF SWITCH 1 23A-5 90170B-023A-5 OVERLOAD SWITCH 1 23A-6 90170B-023A-6 NUT M4 4 23A-7 90170B-023A-7 LIMIT SWITCH 1 23A-8 90170B-023A-8 WASHER M4 4 23A-9 90170B-023A-9 SCREW M4x35 4 23A-10 90170B-023A-10 WIRE 1 24 90170-024 PHILLIPS HD. SCREW M4 2 25 90170-025 NUT M8 1 26 90170-026 KEY 5x5 1 27 90170-027 SET SCREW 1/4"-3/8" 2 28 90170-028 LOWER DOOR 1 29 90170-029 CAP SCREW 1/4"-3/8" 2 30 90170-030 HEX NUT (LH) 3/4" 1 31 90170-031 LOWER WHEEL 1 32B 90170-032B PULLEY 1 33 90170-033 MOTOR PULLEY 1 34 90170-034 DRIVE BELT A-33 1 35B 90170-035B SHAFT 1 36 90170-036 BEARING 6005ZZ 2 37 90170-037 BLADE TENSION SCALE 1 38 90170-038 HEX NUT 5/16" 2 39 90170-039 KNOB 2 40 90170-040 RETAINER 2 41 90170-041 POWER CORD 1 42 90170-042 MOTOR CORD 1 43 90170-043 DOOR LOCK KNOB 2 44 90170-044 CAP SCREW 1/4"-3/4" 3 45 90170-045 ADJUSTING SCREW 4
28
29
PARTS LIST
90-170B M1
REF # PART. N0. DESCRIPTION SPECIFICATION QTY
46 90170-046 HEX NUT 3/4" 1 47 90170B-047 BEARING HOUSING 1 48 90170-048 PIN 6mm 2 49 90170-049 COVER 1 50 90170-050 HEX BOLT 3/8"-1 1/2 4 51 90170-051 HEX BOLT 3/8"-2 1/2" 2 52 90170-052 MOTOR 1 53 90170-053 RATCHET LEVER 3/8"-1" 1 54 90170-054 KEY 5x5 2 55 90170-055 WASHER 3/8" 1 56 90170-056 HEX NUT 3/8" 1 57 90170-057 WHEEL BRUSH 1 58 90170-058 HEX BOLT 3/16" 1 59 90170B-059 BRAKE BELT 1 60 90170B-060 SHAFT 1 61 90170B-061 SCREW 3/8"-2 1/2" 1 62 90170B-062 SCREW 3/8"-2" 1 63 90170B-063 NUT 3/8" 3 64 90170B-064 SPRING 1 65 90170B-065 SCREW 3/8"-1 1/4" 1 66-1 90170B-066-1 BRAKE BAR 1 66-2 90170B-066-2 BRAKE BAR (LONG) 1 67 90170B-067 BRAKE BAR (SHORT) 1 68A 90170B-068A CAP SCREW 1/4"-3/4" 2 69 90170B-069 LOCK WASHER 3/8" 2 70 90170B-070 MITER GAUGE STORAGE BRACKET 1 71 90170B-071 RIP FENCE STORAGE BRACKET 1 72 90170B-072 HEX HEAD BOLT 1/4" - 3/4" 4 73 90170B-073 NUT 2 74 90170B-074 HEX HEAD BOLT 2 75 90170B-075 HEX HEAD BOLT 1 76 90170B-076 NUT 1 77 90170B-077 GENERAL LOGO 1 78 90170B-078 LABEL 1 79 90170B-079 LABEL 1 80 90170B-080 LABEL 1 81 90170B-081 LABEL 1 82 90170B-082 LABEL 1 83 90170B-083 LABEL 1 84 90170B-084 ELECTRIC WARNING LABEL 1 85 90170B-085 MACHINE PLATE 1 86 90170B-086 LABEL 1 87A 90170B-087A CAP SCREW 3/8"-1" 2 88A 90170B-088A LOCK WASHER 3/8" 2 90 90170B-90 GUARD 1 101 90170-101 HEX BOLT 3/16" 1 102 90170-102 LOCK WASHER 1/4"-3/8" 4 103 90170-103 WASHER 1/4" 16 104 90170-104 GUIDE BAR COVER 1/4" 14 107 90170-107 GUIDE BAR 1 108 90170-108 BRACKET 1 109 90170-109 WASHER 5/16" 4 110 90170-110 LOCK WASHER 5/16" 4 111 90170-111 HEX BOLT 5/16"-5/8" 4 112 90170-112 SHAFT 1 113 90170-113 HAND WHEEL 1
30
PARTS LIST 90-170B M1
REF # PART. N0. DESCRIPTION SPECIFICATION QTY
114 90170-114 SET SCREW 1/4" 1 115 90170-115 C-RING S13 1 116 90170-116 BALL 2 117 90170-117 SPRING 2 118 90170-118 SET SCREW 1/4" 6 119 90170-119 KNOB 1 120 90170-120 GEAR 1 121 90170-121 BLADE GUARD 1 122 90170-122 THUMB SCREW 1/4"-3/4" 2 123 90170-123 HEX BOLT 1/4"-3/4" 1 124 90170-124 UPPER BLADE GUIDE HOLDER 1 125 90170-125 BEARING SHAFT 1 126 90170-126 BEARING 6200ZZ 8 127 90170-127 C-RING S-10 6 128 90170-128 BEARING SHAFT 2 128A 90170-128A BEARING SHAFT (LONG) 2 129 90170-129 BEARING MOUNT 2 130 90170-130 CAP SCREW 1/4"-3/4" 1 131 90170-131 GUARD POST 1 132 90170-132 POINTER 1 133 90170-133 PHILLIPS HD. SCREW 3/16" -1/2" 2 134 90170-134 TABLE INSERT 1 135 90170-135 TABLE 1 138 90170-138 SCALE 1 139 90170-139 POINTER PLATE 1 140 90170-140 TABLE ALIGNMENT PIN 3/8"-2/1/2" 2 141A 90170B-141A MITER GAUGE 2 141A-1 90170B-141A-1 LOCKING KNOB 1 141A-2 90170B-141A-2 GAUGE BODY 1 141A-3 90170B-141A-3 PHILLIPS HD. SCREW 3/16" - 1/4" 1 141A-4 90170B-141A-4 POINTER 1 141A-5 90170B-141A-5 GAUGE BAR 1 141A-6 90170B-141A-6 BLOCK 1 142 90170-142 HEX BOLT 3/8" - 2-1/2" 2 143 90170-143 TRUNNION CLAMP SHOE 5/16"-3/4" 4 144 90170-144 TRUNNION 5/16"-1 1/4" 4 145 90170-145 SHOULDER BOLT 5/16" 8 146 90170-146 HEX BOLT 5/16" - 1-1/4" 1 147 90170-147 WASHER 3/8" 2 148 90170-148 TABLE TILT BRACKET 3/16" - 3/4 2 149 90170-149 LOCK KNOB 1 150 90170-150 PHILLIPS HD. SCREW 3/16" - 1/4" 1 151 90170-151 POINTER 1 152 90170-152 SCALE 1/4"-3/4" 2 153 90170-153 LOWER BLADE GUIDE HOLDER 1 158 90170-158 LOCK KNOB 5/16" 1 159 90170-159 WASHER 3/8" 1 160 90170-160 HEX BOLT 1/4" 2 161 90170-161 ANGLE ADJUSTMENT BRACKET 1/4" 1 162 90170-162 HEX BOLT 1/4" - 5/8" 1 163 90170-163 HEX NUT 3/8"-1 1 164 90170-164 BASE 3/8" 1 166 90170-166 HEX BOLT 5/16" x 1 1/4” 2 167 90170-167 HEX NUT 3/8" 2 168 90170B-168 OPEN END WRENCH 10 x 12 1 169 90170B-169 ALLEN KEY 5 mm 1 170 90170B-170 ALLEN KEY 3 mm 1
WIRING DIAGRAM
'
31
MODEL 90-170B M1
8360 Champ-d’Eau, Montreal (Quebec) Canada H1P 1Y3
Tel.: (514) 326-1161
Fax: (514) 326-5565 - Parts & Service / Fax: (514) 326-5555 - Order Desk
orderdesk@general.ca
www.general.ca
IMPORTANT
When ordering replacement parts, always give the model number, serial number of the machine and
part number. Also a brief description of each item and quantity desired.
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