Grizzly G1148 User Manual

Page 1
15" BANDSAW
MODEL G1148
INSTRUCTION MANUAL
COPYRIGHT © 1994 BY GRIZZLY INDUSTRIAL, INC.
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY IMPORTS, INC.
REVISED APRIL, 1999. PRINTED IN U.S.A.
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-2- G1148 15" Bandsaw
PAGE
1. SAFETY RULES
SAFETY RULES FOR POWER TOOLS ..................................................................3-4
SAFETY RULES FOR BANDSAWS ..........................................................................5
2. CIRCUIT REQUIREMENTS
110V OPERATION ......................................................................................................6
FUSING ......................................................................................................................6
EXTENSION CORDS..................................................................................................6
GROUNDING..............................................................................................................6
3. GENERAL INFORMATION
COMMENTARY ..........................................................................................................7
UNPACKING................................................................................................................8
PIECE INVENTORY....................................................................................................8
CLEAN UP ..................................................................................................................9
SITE CONSIDERATIONS ..........................................................................................9
4. ASSEMBLY
BEGINNING ASSEMBLY ..........................................................................................10
STAND ......................................................................................................................10
BANDSAW UNIT ......................................................................................................11
MOTOR, PULLEYS, AND V-BELT ............................................................................11
BANDSAW TABLE ....................................................................................................12
FENCE AND RAILS..................................................................................................13
TABLE INSERT ........................................................................................................13
5. ADJUSTMENTS
BANDSAW CONTROLS............................................................................................14
TENSION / TRACKING ............................................................................................15
BLADE GUIDES........................................................................................................16
TABLE ADJUSTMENT ..............................................................................................17
FENCE ADJUSTMENT ............................................................................................18
DUST COLLECTION ................................................................................................18
SPEED CHANGES ..................................................................................................18
6. OPERATIONS
PRE-RUN CHECK ....................................................................................................19
BLADE INFORMATION ............................................................................................19
CHANGING BLADES................................................................................................20
RIPPING ....................................................................................................................21
STACKED CUTS ......................................................................................................21
CUTTING CURVES ..................................................................................................22
RESAWING ..............................................................................................................22
7. MAINTENANCE
TABLE........................................................................................................................23
V-BELT ......................................................................................................................23
LUBRICATION ..........................................................................................................24
MISCELLANEOUS....................................................................................................24
8. CLOSURE ......................................................................................................................25
TROUBLESHOOTING ........................................................................................................26
WARRANTY AND RETURNS ............................................................................................27
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G1148 15" Bandsaw -3-
Safety Instructions For Power Tools
SECTION 1: SAFETY
5. KEEP CHILDREN AND VISITORS AW AY.
All children and visitors should be kept a safe distance from work area.
6. MAKE WORK SHOP CHILD PROOF with padlocks, master switches, or by removing starter keys.
7. DON’T FORCE TOOL. It will do the job better and safer at the rate for which it was designed.
8. USE RIGHT TOOL. Don’t force tool or attachment to do a job for which it was not designed.
1. KEEP GUARDS IN PLACE and in working order.
2. REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of checking to
see that keys and adjusting wrenches are removed from tool before turning on.
3. KEEP WORK AREA CLEAN. Cluttered areas and benches invite accidents.
4. DON’T USE IN DANGEROUS ENVIRON­MENT. Don’t use power tools in damp or
wet locations, or where any flammable or noxious fumes may exist. Keep work area well lighted.
For Your Own Safety Read Instruction
Manual Before Operating This Equipment
Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoid­ed, COULD
result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoid­ed, MA
Y result in minor or moderate injury. It may also be
used to alert against unsafe practices. This symbol is used to alert the user to useful information
about proper operation of the equipment.
The purpose of safety symbols is to attract your attention to possible hazar dous conditions.This manual uses a series of symbols and signal words which are intended to convey the level of importance of the safety messages.The progression of symbols is described below. Remember that safety messages by themselves do not eliminate danger and are not a substitute for prop­er accident prevention measures.
NOTICE
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-4- G1148 15" Bandsaw
9. USE PROPER EXTENSION CORD. Make sure your extension cord is in good condi­tion. Conductor size should be in accor­dance with the chart below.The amperage rating should be listed on the motor or tool nameplate.An undersized cord will cause a drop in line voltage resulting in loss of power and ov erheating.Your extension cord must also contain a ground wire and plug pin. Always repair or replace extension cords if they become damaged.
Minimum Gauge for Extension Cords
10. WEAR PROPER APPAREL. Do not wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry which may get caught in moving parts. Non-slip footwear is recommended.Wear protective hair cov­ering to contain long hair.
11. ALWAYS USE SAFETY GLASSES. Also use face or dust mask if cutting operation is dusty. Everyday eyeglasses only have impact resistant lenses, they are NOT safe­ty glasses.
12. SECURE WORK. Use clamps or a vise to
hold work when practical. It’s safer than using your hand and frees both hands to operate tool.
LENGTH
AMP RATING 25ft 50ft 100ft
0-6 18 16 16 7-10 18 16 14 11-12 16 16 14 13-16 14 12 12 17-20 12 12 10 21-30 10 10 No
Safety Instructions For Power Tools
13. DON’T OVERREA CH. Keep proper footing
and balance at all times.
14. MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for best and safest performance. Follow instructions for lubri­cating and changing accessories.
15. DISCONNECT TOOLS before servicing and changing accessories, such as blades, bits, cutters, and the like.
16. REDUCE THE RISK OF UNINTENTION­AL STARTING. Make sure switch is in off
position before plugging in.
17. USE RECOMMENDED ACCESSORIES.
Consult the owner’s manual for recom­mended accessories. The use of improper accessories may cause risk of injury.
18. CHECK DAMAGED PARTS. Before fur­ther use of the tool, a guard or other part that is damaged should be carefully checked to determine that it will operate properly and perform its intended function. Check for alignment of moving parts, bind­ing of moving parts, breakage of parts, mounting, and any other conditions that may affect its operation. A guard or other part that is damaged should be properly repaired or replaced.
19. NEVER LEAVE TOOL RUNNING UNAT­TENDED.TURN PO WER OFF. Don’t leave
tool until it comes to a complete stop.
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G1148 15" Bandsaw -5-
Additional Safety Instructions For The
Bandsaw
1. Do not operate your bandsaw with dull or
badly worn blades. Dull blades require more effort to use and are difficult to con­trol. Inspect blades before each use.
2. Never position fingers or thumbs in line with the cut, use a push stick. Serious injury could occur.
3. Always support round stock in a V-block.
4. Ensure that the machine sits firmly on the
floor before use. Any “wobbles” must be corrected by shimming or blocking before operation.
5. Make sure blade has been properly ten­sioned.
6. Always feed stock evenly and smoothly. Do not force or twist blade while cutting, especially when sawing small radii.
7. This machine is not designed to cut metal or other material except wood.
8. When replacing blades, make sure teeth face down towards the table.The force of the cut is always down.
9. Do not manually stop or slow blade after turning the saw off.
10. Habits – good and bad – are hard to break. Develop good habits in your shop and safety will become second-nature to you.
No list of safety guidelines can be complete. Every shop environment is different.Always consider safety first, as it applies to your individual working conditions. Use this and other machinery with caution and respect. Failure to do so could result in serious per­sonal injury, damage to equipment or poor work results.
Operating this equipment has the potential to propel debris into the air which can cause eye injury. Always wear safety glasses or goggles when operating equipment. Everyday glasses or reading glasses only have impact resistant lenses, they are not safety glasses. Be certain the safety glasses you wear meet the appropriate standards of the American National Standards Institute (ANSI).
Like all power tools, there is danger associ­ated with the Model G1148 15'' Bandsaw. Accidents are frequently caused by lack of familiarity or failure to pay attention. Use this tool with respect and caution to lessen the possibility of operator injury. If normal safety precautions are overlooked or ignored, serious personal injury may occur.
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-6- G1148 15" Bandsaw
110V Operation
SECTION 2: CIRCUIT REQUIREMENTS
A 15-amp slow-blow fuse or circuit breaker should be used on the 110V circuit this bandsaw is connected to. Circuits rated any higher are not adequate to protect the motor from power surges. If you operate this sander on any circuit that is already close to its capacity, it might blow a fuse or trip a circuit breaker. However, if an unusual load does not exist and a power failure still occurs, contact a qualified electrician or our ser­vice department.
Fusing
If you find it necessary to use an extension cord with the Model G1148, make sure the cord is rated Hard Service (grade S) or better. Refer to the chart in the standard safety instructions to determine the minimum gauge for the extension cord. The extension cord must also contain a ground wire and plug pin. Always repair or replace extension cords when they become worn or damaged.
Extension Cords
Grounding
This equipment must be grounded. Verify that any existing electrical outlet and circuit you intend to plug into is actually grounded. If it is not, it will be necessary to run a sep­arate 12 A.W.G. copper grounding wire from the outlet to a known ground. Under no cir­cumstances should the grounding pin from any three-pronged plug be removed. Serious injury may occur.
In the event of an electrical short, grounding reduces the risk of electric shock by providing a path of least resistance to disperse electric cur­rent.This tool is equipped with a power cord hav­ing an equipment-grounding conductor. See Figure 1. The outlet must be properly installed and grounded in accordance with all local codes and ordinances.
The Model G1148 is wired for 110V, single phase operation only. The
3
4 HP motor will safely draw 13 amps at 110V. The motor can also be run on 220V where it will draw 6.5 amps, however addi­tional changes may be necessary to make this work. See the Wiring Diagram near the back of this manual for more information.
Figure 1. Grounded plug configuration.
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G1148 15" Bandsaw -7-
SECTION 3: GENERAL INFORMATION
Commentary
Grizzly Industrial, Inc. is proud to offer the Model G1148 15" Bandsaw. This saw is a part of Grizzly’s growing family of fine woodworking machinery. When used according to the guide­lines set forth in this manual, you can expect years of trouble-free, enjoyable operation, and proof of Grizzly’s commitment to customer satis­faction.
The G1148 features a heavy-duty, stamped, and welded sheet metal body, a cast-iron tilting table, adjustable fence, miter gauge and a 3/4 HP motor.A 2" dust por t is built-in to the lower hous­ing. The saw comes prewired and ready to oper­ate at 110V.
We are also pleased to provide this manual with the G1148. It was written to guide you through assembly, review safety considerations, and cover general operating procedures. It represents our latest effort to produce the best documenta­tion possible. If you have any criticisms that you feel we should pay attention to in our next print­ing, please write to us at the address below:
Grizzly Industrial, Inc.
C/O Technical Documentation
P.O. Box 2069
Bellingham, WA 98227-2069
Most importantly, we stand behind our machines. If you have any service questions or parts requests, please call or write us at the location listed below.
The specifications, drawings, and photographs illustrated in this manual represent the Model G1148 as supplied when the manual was pre­pared. However, owing to Grizzly’s policy of con­tinuous improvement, changes may be made at any time with no obligation on the part of Grizzly. Whenever possible, though, we send manual updates to all owners of a particular tool or machine.Should you receive one, we urge you to insert the new information with the old and keep it for reference.
Grizzly Industrial, Inc.
2406 Reach Road
Williamsport, PA 17701
Phone: (570) 326-3806
Fax:(800) 438-5901
E-Mail: techsupport@grizzlyindustr ial.com
Web Site: http://www.grizzlyindustrial.com
To operate this or any power tool safel y and efficiently ,it is essential to become as famil­iar with it as possible. The time you invest before you begin to use your Model G1148 will be time well spent. DO NOT operate this machine until you are completely familiar with the contents of this manual. Serious personal injury may occur.
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-8- G1148 15" Bandsaw
Unpacking
The bandsaw is shipped from the factory in a carefully packed carton.If you find the machine to be damaged after you’ve signed for delivery and the truck and driver are already gone, you will need to file a freight claim with the carrier. Save the containers and all packing materials for inspection by the carrier or their agent. Without the packing materials, filing a freight claim can be difficult. If you need advice regarding this situa­tion, please call us.
Piece Inventory
With all the parts removed from the container, y ou should have:
• Bandsaw Unit with Blade
• Motor
• Stand Parts
• Fasteners
• Miter Gauge
• Table and Mounting Bracket
• Fence Assembly
• Belt
If anything is missing, call or write to the appro­priate regional service department listed in the General Information section. If anything is dam­aged, please follow the procedures described to the left.
The following list details the fasteners needed to assemble the Model G1148.In the rare event that any standard hardware is missing (e.g., a nut or bolt), we would be happy to replace it, b ut it would probably be quicker and less expensive if you were to buy replacements from your local hard­ware store.
NOTICE
Please keep all packaging materials until you are satisfied that the machine is in good condition. Should you need to file a freight claim, the carrier’s agent will require inspection of those materials. Settling a claim can be difficult if packaging is not available.
QTY.
32 32 32 32
4 8 4 4 4 2 2 4 4 4
DESCRIPTION
5
/16" - 18 x 5/8" Carriage Bolts
5
/16" Hex Nuts
5
/16" Flat Washers
5
/16" Lock Washers
3
/8" - 16 x 3" Hex Bolts
3
/8" Washers
3
/8" - 16 Hex Nuts
Fence Spacers
1
/4" - 20 x 3/4" Cap Screws
5
/16" - 18 x 1 1/4" Hex Bolts
5
/16" - Flat Washers
5
/16" - 18 x 5/8" Carriage Bolts
5
/16" Flat Washer
5
/16" Hex Nuts
LOCATION
Stand Stand Stand
Stand Base/Stand Base/Stand Base/Stand
Rails/Table Rails/Table Body/Table
Body/Table Motor/Base Motor/Base Motor/Base
FASTENERS
When you are completely satisfied with the con­dition of your shipment, you should inventory its parts.
The G1148 is a very heavy machine (175 lbs. shipping weight). DO NOT over-exert your­self while unpacking or moving your machine – get assistance. In the event that your machine must be moved up or down a flight of stairs, be sure that the stairs are capable of supporting the combined weight of people and the machine. Serious person­al injury may occur.
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G1148 15" Bandsaw -9-
Clean Up
The unpainted surfaces are coated with a waxy oil to protect them from corrosion during ship­ment. Remove this protective coating with a sol­vent cleaner or citrus-based degreaser. Avoid chlorine-based solvents as they may damage painted surfaces should they come in contact. Always follow the usage instructions on the prod­uct you choose for clean up.
Many of the solvents commonly used to clean machinery can be highly flammable, and toxic when inhaled or ingested.Always work in well-ventilated areas far from potential ignition sources when dealing with solvents. Use care when disposing of waste rags and towels to be sure they do not create fire or environmental hazards. Keep children and animals safely away when cleaning and assembling this machine.
Do not use gasoline or other petroleum­based solvents to remove this protective coating.These products generally have low flash points which makes them extremely flammable. A risk of explosion and burning exists if these products are used. Serious personal injury may occur.
Site Considerations
FLOOR LOAD
Your G1148 Bandsaw represents a large weight load in a small footprint. Most commercial or res­idential shop floors should be sufficient to carry the weight of the machine. If you have any ques­tion about the floor structure being able to sup­port the weight, contact your local city building inspector or a qualified civil engineer or contrac­tor.
WORKING CLEARANCES
Working clearances can be thought of as the dis­tances between machines and obstacles that allow safe operation of every machine without limitation. Consider existing and anticipated machine needs, size of material to be processed through each machine, and space for auxiliary stands and/or work tables. Also consider the rel­ative position of each machine to one another for efficient material handling. Be sure to allow your­self sufficient room to safely run your machines in any foreseeable operation.
LIGHTING AND OUTLETS
Lighting should be bright enough to eliminate shadow and prevent eye strain.Electrical circuits should be dedicated or large enough to handle combined motor amp loads. Outlets should be located near each machine so power or exten­sion cords are not obstructing high-traffic areas. Be sure to observe local electrical codes for prop­er installation of new lighting, outlets, or circuits.
Make your shop “child safe”. Ensure that your workplace is inaccessible to young­sters by closing and locking all entrances when you are away. Never allow visitors in your shop when assembling, adjusting or operating equipment.
All die-cut metal parts have a sharp edge (called “flashing”) on them after they are formed. This is generally removed at the factory. Sometimes a bit of flashing might escape inspection, and the sharp edge may cause cuts or lacerations when handled. Please examine the edges of all die-cut metal parts and file or sand the edge to remove the flashing before handling.
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-10- G1148 15" Bandsaw
SECTION 4: ASSEMBLY
Beginning Assembly
Most of your bandsaw has been assembled at the factory. The remainder of the machine should be fairly easy to assemble in your shop.The assem­bly process is organized in steps. Please follow these steps in sequence. We also recommend that you review the diagrams and parts lists to become familiar with all the parts before you begin.
THE FOLLOWING TOOLS WILL BE NEEDED:
10mm and 12mm wrenches, a set of metric Allen
®
wrenches, flathead screwdriver, Phillips
®
screwdriver, and a 6" or 8" adjustable wrench. NOTE: Threads on the fasteners are USA stan-
dard coarse.The heads, however, are metric.
Stand
All die-cut metal parts have a sharp edge (called “flashing”) on them after they are formed.This is generally removed at the fac­tory. Sometimes a bit of flashing might escape inspection, and the sharp edg e may cause cuts or lacerations when handled. Please examine the edges of all die-cut metal parts and file or sand the edge to remove the flashing before handling.
Figure 3. Bandsaw stand assembly.
To begin stand assembly, keep all the stand parts within easy reach. To ease assembly, build the stand upside down on a bench, then place it upright on the floor.
1. Place the 2 short upper braces (#81) upside down on a flat, hard surface. Place the 2 long upper braces (#83) inside the short braces so that the carriage bolt holes line up.
2. Secure the legs to each cor ner formed by the long and short upper braces. Use 4 car­riage bolts, nuts, and washers for each cor­ner.Finger tighten only.
3. Secure the lower braces between the legs (#85). Since the legs are angled, the lower braces are directional, if the holes don’t line up easily, rotate the lower brace so that they do.Don’t try to f orce it.Tighten secure­ly.
4. Tighten the carriage bolts on the upper braces.
5. Turn the stand right side up and place where the bandsaw will be located.
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G1148 15" Bandsaw
-11- G1148 15" Bandsaw
Figure 4. Adjusting pulley alignment
Motor, Pulley,V-Belt
Bandsaw Unit
This bandsaw is relatively heavy and awkward to handle. We strongly recommend that you get assistance.The bandsaw unit is also very unsta­ble until it is permanently mounted to the stand. Use care so the bandsaw unit does not tip.
1. Place the bandsaw on the stand with assis­tance and align the four (4) holes in the base over the f our (4) mounting holes in the stand.
2. Loosely secure the bandsaw base to the stand with the four (4)
3
/8" - 16 x 3" hex
bolts, nuts, and washers provided.
3. Wiggle the bandsaw back and forth on the stand to ensure that the bandsaw stand is seated properly. Ensure that the stand is symmetrical when viewed from the front and the side.Tighten fasteners securely.
NOTICE
Ensure that the Model G1148 is located on a flat, level surface.This will maximize the sta­bility of the machine and ensure that adjust­ments are accurate. For conditions where permanent mounting is possible, you may consider adding L-brackets at the bottom of the stand to enable you to bolt the machine to your shop’s floor. This type of mounting will minimize vibration and provide a more stable work environment.
2. Insert the 4 carriage bolts through the slots.
Use washers on the underside.Finger tight­en the nuts for now.
3. Slip the V-Belt into the grooves of the wheel and motor pulleys. Be sure grooves you choose are aligned. For general woodwork­ing, use fastest blade speed (i.e. the small­er diameter wheel pulley groove combined with the larger diameter motor pulley groove).
NOTE: For resawing and cutting operations with wider blades, use the slow speed (i.e. the larger diameter wheel pulley groove combined with the smaller diameter motor pulley groove). When using the slow speed, do not feed stock too fast. This will cause possible blade breakage, stalling, and extremely poor cuts.
4. Check for proper pulley alignment by plac­ing a plumb line on the outside edge of the upper pulley so that it overlaps the motor pulley. If the line touches both pulleys even­ly, the pulleys are aligned. If the line does not touch both pulleys evenly, wiggle the motor until the pulleys come into alignment. If proper alignment is still not attained, loosen the setscrew (#62) on the motor pul­ley and push the pulley in or out to achieve proper alignment. Remember to retighten the setscrew when finished. See Figure 4.
1. Align the mounting slots on the motor over the mounting slots on the base of the band­saw. Be sure that the V-Belt (#28), which is already installed over the wheel pulley (#30), fits over the motor pulley (#29).
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G1148 15" Bandsaw
G1148 15" Bandsaw -12-
Bandsaw T able
5. Adjust the V-Belt tension by sliding the
motor along the slots. Proper tension is achieved when the belt can be deflected approximately
3
/4" with moderate finger
pressure.
6. Tighten the carriage bolts securely. Re­check belt tension and pulley alignment.
The bandsaw table (#70) secures to the trunnions (#74). The trunnions mount to the table support bracket (#74) and the table support bracket anchors to the bandsaw unit. The trunnions are pre-mounted to the table.To mount the bandsaw table:
1. Remove the two table bracket mounting bolts (#78) from the bandsaw body. Figure
5 shows them removed.
2. There are two alignment pins (#50) that
cross diagonally between the bracket mounting bolts. See Figure 5. Place the table bracket on the body over the align­ment pins and secure it to the bandsaw with the two bolts.
Figure 5. Alignment pins and mounting holes.
Positive Stop
Adjusting Stud
Alignment Pins
Table Bracket
Mounting Holes
3. Remove the two star knobs (#77), table insert (#68), and tapered pin (#71) from the table.
4. Slip the table past the blade through the table slot, rotate the table 90°, and set the table trunnions onto the bracket.Make sure the trunnion bolts (#72) drop through the support bracket. See Figure 6.
5. Secure the table to the support bracket by tightening the two star knobs onto the trun­nion bolts. Remember to position the table so that the miter slot is to the right of the blade as you face the front of the bandsaw.
6. Place the table insert in the table top and slide the tapered pin so it fits snugly in the hole on the side of the table. Do not use excessive force or the table will warp.
IMPORTANT: The tapered table pin must be in position when operating the bandsaw.
Figure 6. Tr unnion assembly.
Trunnion
Angle Pointer
Trunnion Bolt
DO NOT attempt to operate this machine before completing the assembly and adjustment instructions. Be sure that the switch is off and the cord is disconnected from the power source at all times until assembly and adjustment are complete and you have reviewed all safety guide­lines. Serious injury could occur.
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G1148 15" Bandsaw -13-
DO NOT attempt to operate this machine before completing the assembly and adjust­ment instructions. Be sure that the switch is off and the cord is disconnected from the power source at all times until assembly and adjustment are complete and you have reviewed all safety guidelines. Serious injury could occur.
Figure 7. Rail attachment points.
Fence and Rails
The saw blade is dangerously sharp. Use extra care when handling the blade, or work­ing near it. Serious injury is possible.
Table Inser t
The table insert provides support for materials being cut. It can also be removed for increased access to the lower blade guide.
The insert is supported by a lip formed in the table casting. No adjustment should be neces­sary beyond placing the insert in the hole in the table top.
The insert should be flush with the table top when inserted in position. If the insert sits too high in relation to the table, inspect the bottom of the insert and the top of the lip. If burrs or bumps exist, use a fine flat file or a rotary tool to smooth. If the insert fits too low, use small pieces of mask­ing tape to raise the level of the insert.
The last item to install is the rip fence (assembled around #114). Notice that the front and back edges of the table hav e f our (4) counterbored and threaded holes. These holes accept the spacers (#86) and cap screws (#88) that attach the fence rails to the table (#87). See Figure 7.
1. Secure the fence rails to the table with the four (4)
1
/4" - 20 x 3/4" cap screws and spac­ers provided. For maximum fence travel to the left of the blade, install the rails so the longer 10
3
/4" segment between the end of each rail and the mounting hole is located to the left side of the table (facing the front of the bandsaw).
2. To mount the fence on the left side of the blade, remove the blade from the bandsaw. If you wish to mount the fence to the right side of the blade, it will be necessary to remove the fence from the rails before changing blades.
3. The fence locking handle and knob should both be loose (#107, #91). Slide the fence onto the fence rails. Ensure that the fence slides easily. Give the fence rails a shot of light oil or silicon spray if needed.
NOTE: When the fence is to the left of the blade, the fence must be positioned near the center of the table in order to open the lower wheel cover.
Rail Spacers
NOTICE
Though the notch in the insert has been engineered to remain unobstructed at all table angles, use care to inspect blade clearance when preparing to make angled cuts. If the blade touches the side of the insert, refer to the blade guide, and blade tensioning and tracking adjustments in the next section.
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-14- G1148 15" Bandsaw
SECTION 5: ADJUSTMENTS
Bandsaw Controls
B
E
A
F
D A
C
General control and adjustment locations are shown in Figure 8 above and are described in this section.
A. These two guard locking knobs (#46)
secure the upper and lower wheel covers (#24, #25). The covers are only opened to change a blade or make an adjustment to blade tracking.Blade changing and tracking will be explained later in this section.
B. This is the toggle switch (#16) that the con-
trols the motor. Power is controlled by up and down movement.
C. This handle (#107) and knob (#91) locks
the rip fence in place.
D. These star knobs (#77) are used to lock the
table in position.
E. The miter gauge slides in the milled groove
in the table and can be set at 45° left and right. Use the miter gauge for crosscutting and miter-cutting.
Now, direct your attention to the controls located around the upper part of the saw.See Figure 9.
F. This knob (#8) is used to control blade ten-
sion. Turning clockwise (from the front) increases tension; counter-clockwise decreases tension.
G. These knobs (#14) control blade tracking
by setting the angle of the upper wheel. Note that the knobs have locking nuts in place.
H. This knob (#93) locks the upper blade guide
assembly (assembled around #58) in posi­tion.The upper guide should be adjusted to within
1
/4" of the workpiece for optimum
blade support.
Figure 9. Upper Controls.
F
G
H
Figure 8. General controls.
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G1148 15" Bandsaw -15-
Tension/Tracking
TRACKING
To adjust tracking, disconnect the bandsaw from the power source and adjust the upper and lower guide assemblies away from the blade. Loosen the locknuts on the tracking control knobs and turn the knobs clockwise or counter-clockwise while turning the upper wheel by hand.The blade should track so the body of the blade is centered on the upper wheel and tire. Turn the wheel by hand at least three full turns to ensure that the blade is tracking in its final position.Retighten the locknuts.Recheck the tracking.Do not attempt to adjust the tracking on the lower wheel.
DO NOT attempt to assemble, adjust, or maintain this machine while it is running. Turn off the switch,disconnect the bandsaw from its power source and wait for all mov­ing parts to come to a complete stop before attempting any adjustments or mainte­nance. Failure to do so could result in seri­ous injury.
Proper blade tension and tracking are important for optimum bandsaw performance.See Figure 9 for bandsaw tension and tracking control loca­tions.
TENSION
Since a wide range of blades will work well in this saw, proper blade tension ultimately depends on the type and size of blade you use. Thinner blades require less tension than wide blades.Too much tension will result in blade breakage. A properly tensioned blade will track the cutting line accurately and the cut will be smoother.
Proper blade tension can best be achieved by determining the amount of blade deflection:
1. Ensure that the power is off and the saw is
unplugged. Raise the upper guide assem­bly all the way.
2. Press, with moderate pressure, on the face
of the blade with your thumb.
3. Turn the tensioning knob at the top of the
machine to change the amount of tension. The blade should flex about
1
/4".
If the tension seems correct, make the other adjustments to the saw (aligning guides, trac king, speed, table and fence) and test run it. If the blade is not cutting properly, the tension may be incorrect and you’ll need to readjust the tension. Remember to reduce the blade tension when the saw will not be in use, this will help to pre vent pre­mature wear or breakage of the blade and/or rub­ber tires.
Operating this equipment has the potential to propel debris into the air which can cause eye injury. Always wear safety glasses or goggles when operating equipment. Everyday glasses or reading glasses only have impact resistant lenses, they are not safety glasses. Be certain the safety glasses you wear meet the appropriate standards of the American National Standards Institute (ANSI).
Page 16
G1148 15" Bandsaw
G1148 15" Bandsaw -16-
Figure 11. Lower guide adjustments.
Guide
Blocks
Support
Bearings
Table Pin
Trunnions
Blade Guides
Whenever changing a blade or adjusting tension and tracking, the upper and lower blade support bearings and guide blocks must be re-adjusted. Always adjust the assemblies away from the blade before installing a new blade or making blade tracking adjustments. After blade tension and tracking are set correctly, re-adjust the upper and lower support bearings and guide block assemblies into position. See Figures 10 and 11 for locations.
UPPER GUIDES
Adjustment of the upper guides is a two-part pro­cedure, consisting of adjustments to both the support bearings and guide blocks. They are as follows:
Support Bearings - The support bearings back-up the blade during the sawing opera­tion.T o adjust the support bearings, loosen the setscrews securing the support bearing shafts. Push or pull the shafts so that the upper and lower support bearings are within
1
/64" behind the blade.Retighten the setscrews.
Guide
Blocks
Support
Bearings
Securing
Bolts
Setscrews
Shafts
Setscrews
Star Knobs
Shafts
Figure 10. Upper guide adjustments.
Guide Blocks - The guide blocks ensure that
the blade is not pushed too far laterally. To adjust the guide blocks, loosen the setscrews securing the guide block shafts. Adjust evenly so that the front of the blocks are
1
/64" behind the gullet line (See Figure 13) of the blade. Then loosen the guide block securing bolts (#65). Take a short piece of transparent tape and wrap one thickness of tape around the blade. Move the portion of the blade with the tape so that it is between the guide blocks. Carefully pinch both blocks without disturbing the blade. Tighten the securing bolts and remove the tape.This provides a clearance of approximately .004''.
LOWER GUIDES
Adjustments for the lower guides are identical to those for the upper guides. Use Figure 11 to identify the lower guide assembly components.
The bandsaw blade is dangerously sharp. Use extreme caution when working near the saw blade. Failure to exercise care could result in severe injury.
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G1148 15" Bandsaw -17-
Make sure there is no deflection of the blade from the straightedge. Measure the distance between the edge of the miter gauge slot and the straightedge at points A and B. See Figure 12. Distance A should be approximately equal to distance B. Adjust the table slightly until these dis­tances are equal.
3. Secure the table by re-tightening the trun-
nion bolts.Recheck table position to ensure that unwanted shifting did not occur during re-tightening.
Figure 12. Squaring table to blade.
Table
Miter Slot
Table Insert
The table should also be 90° to the back of the blade.If the table is not perpendicular to the back of the blade, shim the table in the desired direc­tion with washers.Remove the trunnion bolts and add washers between the table and trunnion so the table tilts in the desired direction. Electrical washers are very thin and will allow fine adjust­ment.
The bandsaw blade is dangerously sharp. Use extreme caution when working near the saw blade. Failure to exercise care could result in severe injury.
Table Adjustment
The bandsaw table will tilt left 10° and right 45° from horizontal.There is a positive stop adjusting stud (#49) so the table can be re-set perpendicu­lar to the blade after tilting it left or right. See
Figure 5.To tilt the table:
1. Loosen the two star knobs below the trun- nions. See Figure 11 for location.
2. Position the table to the desired angle.
Refer to the angle gauge on the table sup­port bracket.
3. Tighten the star knobs.
NOTE: If setting table tilt to the left, first tilt the
table to the right, loosen the check nut (#94) on the positive stop adjusting stud, remove the stud, and then tilt the table to the left.
To adjust the positive stop so the table will be per-
pendicular (90°) to the blade:
1. Loosen the two star knobs and the check­nut securing the positive stop adjusting stud.
2. Raise the upper blade guide assembly and place a 6" machinist’s square or try-square on the table against the blade. Adjust the positive stop adjusting stud so that the table will stop at a 90° angle to the blade.
3. Secure the star knobs and lock the positive adjusting stud by tightening the checknut. Ensure that the stud does not turn while tightening the checknut. Set the angle pointer (#105) to zero.
The table can be shifted side to side to properly align the miter slot and the blade:
1. Loosen the 6 trunnion bolts (#75) under­neath the table.
2. Use the largest width blade available installed in the machine.Lay a straightedge along side the blade and inspect it closely to make sure it is parallel to the blade.
A
B
Page 18
-18- G1148 15" Bandsaw
Align the fence to the miter slot by first loosening the two (2) bolts (#109) nearest the operator .Lock the lower lock knob and measure between the front edge of the fence (#114) and the front edge of the miter slot. Compare this to a measurement taken at the back of the fence and the miter slot. Swing the fence to correct for any difference and measure again.When satisfied that both front and back measurements are equal, carefully tighten the two bolts at the top of the fence.
Fence operation is controlled by the threaded handle and knob located on the front of the fence. The handle, when screwed tight, locks the fence to the rear rail.The knob on the lower side of the fence, when screwed tight, locks the fence to the front rail.To change the fence position, loosen the handle and knob and slide the fence along the rails.To relock the fence always tighten the lower knob first. This helps the fence to square itself to the rails. Then lock the top handle to secure the fence.
Fence Adjustment Speed Changes
Loosen the motor mounting bolts and move motor accordingly to slacken the V-Belt. It should now be easy to roll the belt onto the pulleys of choice. There are two pulleys on both the lower bandsaw wheel and the motor shaft.The belt should be on either the inner or outer pulley on both the upper and lower wheels.When the belt is on the pulleys closest to the motor (inner pulleys) the speed is 2600 RPM. When it is on the outer pulleys the speed is 1750 RPM.Never cross the belt from the inner to the outer pulleys.
Tighten the motor mounting bolts and readjust the belt tension and check the alignment accord­ing to the instructions provided in the Maintenance Section.
The G1148 has an integral 4'' dust port built-in to the lower wheel housing. You will achieve best results if you connect the machine to a dust col­lection system when you are using the saw. This helps to keep the blade and wheels clear of chips and dust. Plus there is the added benefit of hav­ing less dust put into the air of your shop.Connect your dust collection hose securely to this port using hose clamps, and activate the dust collec­tion system at the time you start the bandsaw.
Dust Collection
The Model G1148 15" Bandsaw is a power­ful, professional-quality machine, designed and built to provide outstanding results when used cautiously and with respect.Like any machine of its type, the Model G1148 has some inherent dangers, which, when used with a lack of care, can result in seri­ous injury or fatality. Please do not attempt to use this machine without familiarizing yourself with the instructions for assembly, adjustment, and safe operation. Failure to do so could result in serious personal injury ,as well as property damage and dam­age to the machine.
Operating this equipment has the potential for respiratory damage to occur due to the level of airborne dust it produces. Always wear a dust mask or respirator when oper­ating equipment.
Page 19
G1148 15" Bandsaw -19-
Pre-Run Check
Bandsaw Blades
SECTION 6: OPERATIONS
The bandsaw is one of the most versatile machines in the shop. It can cut miters, com­pound angles, simple and complex curves, cir­cles, and a wide variety of irregular shapes.It can also rip and crosscut, as well as cut a variety of joints. The bandsaw will also resaw stock into thinner boards.
There are many adjustment points and compen­sating differences to consider when operating this type of saw. Therefore, cutting results can be somewhat unpredictable if some or all of the cru­cial adjustments are neglected. Here are a few simple things you can do to increase the pre­dictability of your bandsaw’s performance:
1. Always use a sharp, high-quality blade.
Although you might save a few dollars ini­tially, buying a cheap blade will give you cheap results. As a rule, spending more now saves you money later.
2. Use the right blade for the job. Resawing
with a
1
/16" blade or doing scrollwork with a 1" blade are extreme examples of using the wrong blade for the job.
3. Allow the saw to cut. Don’t force the
workpiece into the blade. When cutting
curves or irregular shapes, remember that while negotiating a curve, the blade should still be cutting wood. Simply turning the workpiece will only bind the blade and could break it.
4. Maintain your bandsaw in top condition.
See the following section of this manual for maintenance procedures.
A bandsaw blade is a delicate piece of steel sub­jected to tremendous strain. Be sure you use quality blades of the proper width for the various types of cutting operations. The Grizzly G1148 15" bandsaw accepts 103" blades.
Always use the widest blade possible for the workpiece you are cutting. Use narrow blades only for sawing small, abrupt curves and for fine, delicate work.Bandsaw blades can be purchased welded, set, and sharpened ready-for-use from most saw shops.We also supply bandsaw blades in widths of
1
/8", 1/4", 3/8", 1/2", and 3/4", for this saw. Please refer to our current catalog for prices and ordering information.
Always select and use good-quality saw blades and choose the right blade for the job. Poor qual­ity blades and improper use are often the cause of premature blade failure.
Many conditions can lead to breakage. Blade breakage is, in some cases, unavoidable, since it is the natural result of the peculiar stresses that bandsaw blades are subjected to. Blade break­age is also due to avoidable causes. Avoidable breakage is most often the result of poor care or judgement on the part of the operator when mounting or adjusting the blade or support guides.The most common causes of blade break­age are: (1) faulty alignment and adjustment of the guides; (2) forcing or twisting a wide blade around a curve or short radius; (3) feeding too fast; (4) tooth dullness or absence of sufficient set; (5) excessive tension; (6) upper blade guide assembly set too high above the workpiece; (7) using a blade with a lumpy or improperly finished weld; and (8), continuously running the bandsaw when not in use.
Page 20
-20- G1148 15" Bandsaw
Figure 13. Side and front views of a standard
bandsaw blade.
Gullet Line
Gullet
Tooth
To remove the blade, ensure the power is dis-
connected and:
1. Loosen tension on the blade by turning the tension control knob counter-clockwise when facing the front of the saw. See
Figure 9.
2. Remove the table insert (#68) and table pin
(#71).
3. Adjust upper and lower guide blocks away from the blade.
4. Open the upper and lower wheel covers and slide the blade off both wheels.
Use
caution, the blades are sharp!
5. Rotate the blade 90° so it will slide through
the slot in the table.
NOTE: When removing or installing wide blades, it may be convenient to completely remove the upper and lower guide blocks.
Be sure to
replace them before cutting!
To replace the blade, ensure that the power is disconnected and:
1. Slide the blade through the table slot, ensuring that the teeth are pointing down toward the table.
If the teeth will not point downward in any orientation, the blade is inside out. See Figure 13 for typical blade geometry. Put on heavy gloves, remove the blade, and twist it until it is right side out. Re-install the blade.
2. Slip the blade through the upper and lower guides and mount over the upper and low er wheels.
3. Apply tension to the blade by turning the tension control knob. Refer to blade ten­sioning instructions earlier in this section.
Changing Blades
4. Rotate the upper wheel manually and
check blade tracking.
5. Adjust the upper and lower guide blocks and bearings as described earlier in this section.
6. Close the wheel covers. Turn the yellow guard locking knobs to lock them shut.
7. Replace the table insert and table pin, being sure not to use excessive force.
Use extreme caution when replacing blades. Teeth are dangerously sharp and coiled blades are prone to spring when released from their packaging.Use gloves and safety glasses or goggles whenever handling blades. Failure to do so could result in seri­ous personal injury.
Page 21
G1148 15" Bandsaw -21-
Stacked Cuts
One of the benefits of a bandsaw is its ability to cut multiple copies of a particular shape by stack­ing a number of workpieces together.
Before making stacked cuts, it is essential to ensure that both the table and the blade are prop­erly adjusted to 90°. Otherwise, any error will be compounded with each piece cut from the top to the bottom of the stack.
To complete a stacked cut:
1. Align your pieces from top to bottom to ensure that each piece has adequate scrap to provide a clean, unhampered cut.
2. Using brads in the waste portion of each piece, secure all the pieces together.
3. Lay out the shape you intend to cut on the face of the top piece.
4. Make relief cuts perpendicular to the outline of your intended shape in areas where changes in blade direction could strain the woodgrain or cause the blade kerf to bind.
5. Cut the stack of pieces as though you were cutting a single piece.Follow you la yout line with the blade kerf on the waste side of y our line.
Ripping is the process of cutting a board into two or more thinner boards. The maximum board width that can be ripped is limited by the distance between the blade and the support column. max­imum cutting height of the bandsaw. Maximum cutting width for this bandsaw is 14
5
/8".
The G1148 bandsaw is capable of ripping, pro­vided the saw is set up properly. Use common sense when ripping. Attempting to rip too thick or too dense a board may put excessive strain on the blade and be dangerous.
The important consideration when ripping is blade selection. Generally, the wider blade, the better. In most applications, a hook or skip tooth style will be sufficient. Also, since most ripped lumber will be planed or sanded smooth, you can choose blades with fewer teeth-per-inch. While blades with fewer teeth-per-inch produce rougher cuts, these types of blades offer larger gullet capacities for clearing sawdust, less heat buildup, and yield more horsepower per tooth.
Ripping
To perform ripping operations:
1. The bandsaw must be adjusted correctly. See Blade Tension/Tracking section.
2. The table must be square to the blade.See Table Adjustment Section.
3. Use the widest blade available. The blade must also be in good condition.
4. Use a fence to guide work.
5. Draw a reference line on the edge of the
board.
6. Suppor t ends of the board if necessar y.
7. Feed work slowly and evenly.
Page 22
G1148 15" Bandsaw
G1148 15" Bandsaw -22-
Cutting Curves
When cutting curves, simultaneously feed and turn the stock carefully so that the blade follows the layout line without being twisted. If a cur ve is so abrupt that it would be necessary to repeated­ly back up and cut a new kerf, use either a nar­rower blade or a b lade with more set to av oid that. A blade with more set can cut relatively tighter radii;howev er , the cut is usually rougher than cuts produced by blades with medium set.
Always make short cuts first, then proceed to the longer cuts. Relief cuts will also reduce the chance that the blade will be pinched or twisted. Relief cuts are cuts made through the waste por­tion of the workpiece and are stopped at the lay­out line. As you cut along the layout line, waste wood is released from the workpiece, alleviating any pressure on the back of the blade. Relief cuts also make backing the workpiece out easier, if needed. The table below lists blade widths and corresponding minimum radii each blade will cut.
BLADE WIDTH
1
/8"
3
/16"
1
/4"
3
/8"
1
/2"
5
/8"
3
/4"
MINIMUM RADII
3
/16"
5
/16"
5
/8"
1
1
/2"
2
1
/2"
4"
5
1
/2"
Resawing
Resawing is the process of cutting a board into two or more thinner boards. Each new board is the same width and length as the original board, but the thickness is less. The maximum board width that can be resawn is limited by the maxi­mum cutting height of the bandsaw. Maximum cutting height for this bandsaw is 7
7
/8".
Use common sense when resawing;attempting to resaw a board that is too wide or too dense may put excessive strain on the blade and be unsafe.
Again, the important consideration when resaw­ing is blade selection. When selecting a blade, keep in mind that generally, a wider blade is eas­ier to control. The blade should be of the best quality in order to handle the increased stress. In most applications a hook or skip tooth style will work fine. Also, since most resawn lumber will be planed smooth, you can choose blades with f ew er teeth per inch (3 to 6). While blades with fewer teeth per inch produce rougher cuts, these types of blades offer larger gullet capacities for clearing sawdust, less heat build up, and yield more horsepower per tooth.
NOTE: When operating with wide blades, run the bandsaw at the slowest speed.
To resaw lumber, follow the procedure below:
1. The blade must be adjusted correctly.
2. The table must be square to the blade.
3. Use the widest blade that will fit this saw
(
3
/4"). The blade must also be in good con-
dition.
4. Use the fence to guide the work.
5. Suppor t ends of the board if necessar y.
6. Feed work slowly and evenly.
When using a fence to guide the board, the actu­al line of cut may not be parallel to the fence. In fact, most bandsaw blades will not cut exactly parallel to the fence (even when the fence is set parallel to the miter gauge slot).There are usual­ly a number of reasons for this:
1. Teeth are set unequally from side to side.
2. Teeth are dull on one side.
3. Blade tension is too tight or too loose.
IMPORTANT: Do not force the wood into the
blade during cutting. This will distort the blade, cause excessive heat and often results in blade breakage as well as miscut lumber.
Page 23
G1148 15" Bandsaw -23-
SECTION 7: MAINTENANCE
V-Belts
To ensure optimum power transmission from the motor to the blade, the V-belt must be in good condition and operate under proper tension.Belts should be checked for cracks, fraying and wear. Belt tension should be checked at least every 3 months; more often if the bandsaw is used daily.
The V-belt is accessed via the bottom cover #25:
1. Squeeze the center of each V-belt.
2. Note the amount of deflection. Deflection
should be approximately
3
4".
The table and other non-painted surfaces on the Model G1258 should be protected against rust and pitting. Wiping the saw clean after every use ensures that moisture from wood dust isn’t allowed to trap moisture against bare metal sur­faces.
Some woodworkers recommend using automo­tive paste wax on e xposed steel and cast iron sur­faces.The wax provides a layer of protection, as well as reducing friction between lumber and the table, making cuts faster and smoother. Avoid waxes that contain silicone or other synthetic ingredients. These materials can find their way into lumber that’s being worked, and can make staining and finishing difficult. If you use paste wax, make sure that it’s 100% Carnauba wax.
NOTICE
Do not use paraffin or similar waxes on your saw’s table. They can leave residues which will make cutting more difficult over time. Do not use silicon based lubricants. They can rub off onto the wood and prevent it from taking stains and finishes properly.
Table
Make your workshop “child-safe.” Remove all safety keys from this and other machin­ery when they’re not in use. Place sharp tools and blades high enough to discourage curious fingers. Store lubricants, finishes and other harmful chemicals where they can’t be easily reached. Lock your work­shop securely when you are away.
Operating this equipment has the potential to propel debris into the air which can cause eye injury. Always wear safety glasses or goggles when operating equipment. Everyday glasses or reading glasses only have impact resistant lenses, they are not safety glasses. Be certain the safety glasses you wear meet the appropriate standards of the American National Standards Institute (ANSI).
Page 24
-24- G1148 15" Bandsaw
Shielded and pre-lubricated ball bearings require no lubrication for the life of the bearings.All bear­ings are standard sizes and replacements can be purchased from our parts depar tment or bearing supply store.
As for other items on this machine, such as adjustment controls, an occasional “shot” of light oil is just about all that is necessary .Before apply­ing, however, wipe off any sawdust with a clean cloth, towel or dry paint brush and spray on the lubricant. Ensure that oil does not get on the pul­leys or V-belts because it could cause belt deteri­oration and slipping.
Lubrication
Always be aware of the condition of your band­saw before using it.Routinely check the condition of the following items and repair or replace as necessary.
1. Loose mounting bolts.
2. Worn switch.
3. Worn or damaged blade.
4. Worn or damaged support bearings or
guide bearings.
Miscellaneous
Page 25
G1148 15" Bandsaw -25-
The following pages contain general machine data, parts diagrams and Warranty/Return infor­mation for your Model G1148 Bandsaw.
If you need parts or help in assembling your machine, or if you need operational information, we encourage you to call our Service Department. Our trained service technicians will be glad to help you.
If you have comments dealing specifically with this manual, please write to our Bellingham, Washington location using the address in the Introduction. The specifications, drawings, and photographs illustrated in this manual represent the Model G1148 as supplied when the manual was prepared. However, due to Grizzly’s policy of continuous improvement, changes may be made at any time with no obligation on the part of Grizzly. Whenever possible, though, we send manual updates to all owners of a particular tool or machine.Should you receive one, add the new information to this manual and keep it for refer­ence.
We have included some important safety mea­sures that are essential to this machine’s opera­tion. While most safety measures are generally universal, Grizzly reminds you that each work­shop is different and safety rules should be con­sidered
as they apply to your specific situation.
We recommend you keep a copy of our current catalog for complete information regarding Grizzly's warranty and return policy. If you need additional technical information relating to this machine, or if you need general assistance or replacement parts, please contact the appropri­ate regional Service Department listed in the introduction.
Additional information sources are necessary to realize the full potential of these machines.Trade journals, woodworking magazines, and your local library are good places to start.
The Model G1148 bandsaw was specifically designed for wood cutting operations. DO NOT
MODIFY AND/OR USE THIS BANDSAW FOR ANY OTHER PURPOSE. Modifications or improper use of this tool will void the warran­ty. If you are confused about any aspect of this
machine, DO NOT use it until you have answered all your questions.
SECTION 8: CLOSURE
Like all power tools, there is danger associ­ated with the Model G1148 Bandsaw. Use these tools with respect and caution to lessen the possibility of mechanical dam­age or operator injury. If normal safety pre­cautions are overlooked or ignored, injury to the operator or others in the area is like­ly.
Page 26
-26- G1148 15" Bandsaw
SYMPTOM
Motor will not start.
Motor will not start; fuses or circuit breakers blow.
Motor overheats.
Motor stalls (resulting in blown fuses or tripped circuit).
Machine slows when operating.
Blade does not run even­ly on wheels or runs off.
Blade does not cut even­ly
Ticking sound when the saw is running.
Blade contacting table insert.
Excessive vibration.
Burn marks on the edge of the cut.
POSSIBLE CAUSE
1. Low voltage.
2. Open circuit in motor or loose connections.
1. Short circuit in line cord or plug.
2. Short circuit in motor or loose connections.
3. Incorrect fuses or circuit breakers in power line.
1. Motor overloaded.
2. Air circulation through the motor restricted.
1. Short circuit in motor or loose connections.
2. Low voltage.
3. Incorrect fuses or circuit breakers in power line.
4. Motor overloaded.
1. Applying too much pressure to workpiece.
2. Blade is dull
1. T rac king is not adjusted prop­erly .
2. Rubber tire on wheel is dam­aged or worn
3. Wheels are not co-planar.
1. Blade tension is incorrect.
2. Tooth set is uneven.
3. Teeth are sharper on one side than the other.
1. Blade weld contacting sup­port bearing.
2. Blade weld may be failing.
1. Excessive side pressure when cutting.
2. Table improperly adjusted.
1. Wheels not co-planar.
2. Tires incorrectly installed.
3. Bent or worn out blade.
4. Wheels out of balance.
1. Too much side pressure when feeding workpiece.
2. Blade too wide for size of radius being cut.
CORRECTIVE ACTION
1. Check power line for proper voltage.
2. Inspect all lead connections on motor for loose or open connections.
1. Inspect cord or plug for damaged insulation and shorted wires.
2. Inspect all connections on motor for loose or short­ed terminals or worn insulation.
3. Install correct fuses or circuit breakers.
1. Reduce load on motor.
2. Clean out motor to provide normal air circulation.
1. Inspect connections on motor for loose or shorted terminals or worn insulation.
2 Correct the low voltage conditions.
3. Install correct fuses or circuit breakers.
4. Reduce load on motor.
1. Feed workpiece slower.
2. Replace blade
1. Adjust tracking.
2. Replace rubber tires.
3. Adjust wheel co-planarity.
1. Adjust tension.
2. Replace blade, or have it professionally sharpened.
3. Replace blade, or have it professionally sharpened.
1. Use file or stone to smooth and round the back of the blade.
2. Inspect and replace blade if necessary.
1. Reduce side pressure.
2. Adjust table.
1. Adjust wheels co-planar.
2. Re-install tires.
3. Replace blade.
4. Replace wheels
1. Feed workpiece straight into the blade.
2. Install a smaller width blade, and/or increase blade tension.
TROUBLESHOOTING
Page 27
G1148 15" Bandsaw -27-
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse, negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty and any and all warranties that may be implied by law, including any merchantability or fitness, for any par­ticular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants. In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special, or consequential damages arising from the use of our products.
To take advantage of this warranty, contact us by mail or phone and give us all the details.We will then issue you a “Return Number’’, which must be clearly posted on the outside as well as the inside of the carton.We will not accept any item back without this number. Proof of purchase must accompany the merchandise.
The manufacturers reserve the right to change specifications at any time because they constantly strive to achieve better quality equipment.We make every effort to ensure that our products meet high quality and durability standards and we hope you never need to use this warranty.
Please feel free to write or call us if you have any questions about the machine or the manual. Thank you again for your business and continued support. We hope to serve you again soon.
WARRANTY AND RETURNS
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