Grizzly G9742 User Manual

Page 1
MODEL G9742
5"x 6" METAL-CUTTING
BANDSAW w/ SWIVEL HEAD
OWNER'S MANUAL
(For models manufactured since 11/06)
COPYRIGHT © NOVEMBER, 2005 BY GRIZZLY INDUSTRIAL, INC. REVISED FEBRUARY, 2013 (TS)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
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This manual provides critical safety instructions on the proper setup, operation, maintenance, and service of this machine/tool. Save this document, refer to it often, and use it to instruct other operators.
Failure to read, understand and follow the instructions in this manual may result in fire or serious personal injury—including amputation, electrocution, or death.
The owner of this machine/tool is solely responsible for its safe use. This responsibility includes but is not limited to proper installation in a safe environment, personnel training and usage authorization, proper inspection and maintenance, manual availability and compre­hension, application of safety devices, cutting/sanding/grinding tool integrity, and the usage of personal protective equipment.
The manufacturer will not be held liable for injury or property damage from negligence, improper training, machine modifications or misuse.
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:
Lead from lead-based paints.
Crystalline silica from bricks, cement and other masonry products.
Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: Work in a well ventilated area, and work with approved safety equip­ment, such as those dust masks that are specially designed to filter out microscopic particles.
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Table of Contents
INTRODUCTION ............................................... 2
Foreword ........................................................ 2
Contact Info.................................................... 2
Machine Data Sheet ...................................... 3
Identification ................................................... 5
SECTION 1: SAFETY ....................................... 6
Safety Instructions for Machinery .................. 6
Additional Safety Instructions for Metal Cutting
Bandsaws ...................................................... 8
SECTION 2: CIRCUIT REQUIREMENTS ........ 9
110/220V Operation ....................................... 9
SECTION 3: SET UP ...................................... 10
Set Up Safety ............................................... 10
Items Needed for Set Up ............................. 10
Unpacking .................................................... 10
Inventory ...................................................... 11
Clean Up ...................................................... 12
Site Considerations ...................................... 12
Cabinet, Wheels & Feet ............................... 13
Squaring Vise to Blade ................................ 15
Chip Tray & Cast Iron Stop.......................... 16
OFF Button Lever ........................................ 16
Pulley Cover................................................. 17
Test Run ...................................................... 18
Recommended Adjustments ........................ 18
SECTION 4: OPERATIONS ........................... 19
Operation Safety .......................................... 19
Blade Speed ................................................ 19
Blade Selection ............................................ 20
Feed Rate .................................................... 21
Blade Guides ............................................... 22
Blade Tension .............................................. 23
Operation Tips ............................................. 23
SECTION 5: ACCESSORIES ......................... 24
SECTION 6: MAINTENANCE ......................... 26
Schedule ...................................................... 26
Cleaning ....................................................... 26
Lubrication ................................................... 26
SECTION 7: SERVICE ................................... 27
Troubleshooting ........................................... 27
Blade Change .............................................. 29
Blade Tracking ............................................. 30
Electrical Components ................................. 31
G9742 Wiring Diagram ................................ 32
Saw Parts Breakdown ................................. 33
Stand Parts Breakdown ............................... 35
Guides & Shafts Parts Breakdown .............. 37
Labels Parts Breakdown .............................. 38
WARRANTY AND RETURNS ........................ 41
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INTRODUCTION
Foreword
We are proud to offer the Model G9742 5" x 6" Metal-Cutting Bandsaw with Swivel Head. This machine is part of a growing Grizzly family of fine metalworking 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.
We are pleased to provide this manual with the Model G9742. It was written to guide you through assembly, review safety considerations, and cover general operating procedures. It repre­sents our effort to produce the best documenta­tion possible.
The specifications, drawings, and photographs illustrated in this manual represent the Model G9742 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. For your convenience, we always keep current Grizzly manuals available on our website at www. grizzly.com. Any updates to your machine will be reflected in these manuals as soon as they are complete. Visit our site often to check for the lat­est updates to this manual!
Contact Info
If you have any comments regarding this manual, please write to us at the address below:
C
/O Technical Documentation Manager
We stand behind our machines. If you have any service questions or parts requests, please call or write us at the location listed below.
Grizzly Industrial, Inc.
P.O. Box 2069
Bellingham, WA 98227-2069
Grizzly Industrial, Inc.
1203 Lycoming Mall Circle
Muncy, PA 17756
Phone: (570) 546-9663
Fax: (800) 438-5901 E-Mail: techsupport@grizzly.com Web Site: http://www.grizzly.com
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G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL G9742 5" X 6" METAL-CUTTING BANDSAW W/
SWIVEL HEAD
Product Dimensions:
Weight.............................................................................................................................................................. 150 lbs.
Width (side-to-side) x Depth (front-to-back) x Height............................................................... 39 x 23-3/8 x 54-3/4 in.
Footprint (Length x Width)............................................................................................................... 26-1/2 x 20-1/2 in.
Shipping Dimensions:
Type................................................................................................................................................... Wood Slat Crate
Content........................................................................................................................................................... Machine
Weight.............................................................................................................................................................. 168 lbs.
Length x Width x Height....................................................................................................................... 41 x 18 x 22 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement............................................................................................. 110V or 220V, Single-Phase, 60 Hz
Prewired Voltage.................................................................................................................................................. 110V
Full-Load Current Rating...................................................................................................... 7A at 110V, 3.5A at 220V
Minimum Circuit Size.......................................................................................................... 15A at 110V, 15A at 220V
Switch...................................................................................................... Sealed Button Switch w/Automatic Shut-Off
Cord Length............................................................................................................................................................ 6 ft.
Cord Gauge.................................................................................................................................................... 18 AWG
Plug Included.......................................................................................................................................................... Yes
Motors:
Main
Type................................................................................................................. TEFC Capacitor-Start Induction
Horsepower............................................................................................................................................. 1/2 HP
Phase............................................................................................................................................ Single-Phase
Amps...................................................................................................................................................... 7A/3.5A
Speed................................................................................................................................................ 1725 RPM
Power Transfer ............................................................................................................................... V-Belt Drive
Bearings..................................................................................................... Shielded & Permanently Lubricated
Main Specifications:
Operation Info
Blade Speeds......................................................................................................................... 80, 120, 200 FPM
Std. Blade Length................................................................................................................................ 64-1/2 in.
Blade Size Range..................................................................................................................................... 1/2 in.
Head Swivel............................................................................................................................................ 45 deg.
Machine Data Sheet
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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Cutting Capacities
Angle Cuts........................................................................................................................ Right 45, Left 60 deg.
Vise Jaw Depth...................................................................................................................................... 4-3/8 in.
Vise Jaw Height..................................................................................................................................... 2-1/2 in.
Max. Capacity Rectangular Height at 90 Deg.............................................................................................. 5 in.
Max. Capacity Rectangular Width at 90 Deg............................................................................................... 6 in.
Max. Capacity Round at 90 Deg.................................................................................................................. 5 in.
Max. Capacity Rectangular Height at 30 Deg.............................................................................................. 5 in.
Max. Capacity Rectangular Width at 30 Deg............................................................................................... 5 in.
Max. Capacity Round at 30 Deg.................................................................................................................. 5 in.
Max. Capacity Rectangular Height at 45 Deg................................................................................... 2-15/16 in.
Max. Capacity Rectangular Width at 45 Deg......................................................................................... 3-3/4 in.
Max. Capacity Round at 45 Deg............................................................................................................ 3-3/4 in.
Max. Capacity Rectangular Height at 60 Deg....................................................................................... 1-3/4 in.
Max. Capacity Rectangular Width at 60 Deg....................................................................................... 2-3/16 in.
Max. Capacity Round at 60 Deg............................................................................................................ 1-3/4 in.
Construction
Table....................................................................................................................... Precision Ground Cast Iron
Upper Wheel....................................................................................................................... Machined Cast Iron
Lower Wheel....................................................................................................................... Machined Cast Iron
Body..................................................................................................................................................... Cast Iron
Base.......................................................................................... Formed and Welded Steel with Coolant Sump
Wheel Cover............................................................................................................................ Pre-formed Steel
Paint......................................................................................................................................................... Epoxy
Other
Wheel Size................................................................................................................................................. 13 in.
Blade Guides Upper........................................................................................................................ Ball Bearing
Blade Guides Lower........................................................................................................................ Ball Bearing
Table Info
Table Size Length...................................................................................................................................... 12 in.
Table Size Width................................................................................................................................... 4-1/2 in.
Floor To Cutting Area Height..................................................................................................................... 29 in.
Other Specifications:
ISO 9001 Factory .................................................................................................................................................. Yes
Country Of Origin ............................................................................................................................................... China
Warranty ........................................................................................................................................................... 1 Year
Serial Number Location ........................................................................................................ ID Label on Body Frame
Approximate Assembly & Setup Time ........................................................................................................ 30 Minutes
Features:
Control Panel Conveniently Located Adjustable Hydraulic Downfeed Quick Release Vise for Rapid Change out of Workpiece Blade Included
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G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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Identification
L
A
K
B
C
J
I
D
E
F
G
H
Figure 1. The Model G9742.
A. Blade Tension Knob B. Blade Guide Knob C. Blade Guides D. Pulley Cover E. Heavy Duty Motor F. Hydraulic Cylinder and Feed Rate Dial G. ON/OFF Push-Button Switch Assembly H. Table Angle Scale I. Cast Iron Stop J. Vise Clamp Handwheel K. Gear Box L. Blade Tension Gauge
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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SECTION 1: SAFETY
For Your Own Safety, Read Instruction Manual Before Operating this Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions. This manual uses a series of symbols and signal words 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.
Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, MAY result in minor or moderate injury. It may also be used to alert against unsafe practices.
This symbol is used to alert the user to useful information about
NOTICE
proper operation of the machine.
Safety Instructions for Machinery
Safety Instructions for Machinery
OWNER’S MANUAL. Read and understand
this owner’s manual BEFORE using machine. Untrained users can be seriously hurt.
EYE PROTECTION. Always wear ANSI­approved safety glasses or a face shield when operating or observing machinery. to reduce the risk of eye injury or blindness from fly­ing particles Everyday eyeglasses are not approved safety glasses.
HAZARDOUS DUST. Dust created while using machinery may cause cancer, birth defects, or long-term respiratory damage. Be aware of dust hazards associated with each workpiece material, and always wear a NIOSH-approved respirator to reduce your risk.
WEARING PROPER APPAREL. Do not wear clothing, apparel, or jewelry that can become entangled in moving parts. Always tie back or cover long hair. Wear non-slip footwear to avoid accidental slips which could cause a loss of workpiece control.
HEARING PROTECTION. Always wear hear­ing protection when operating or observiing loud machinery. Extended exposure to this noise without hearing protection can cause permanent hearing loss.
MENTAL ALERTNESS. Be mentally alert when running machinery. Never operate under the influence of drugs or alcohol, when tired, or when distracted.
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G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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SECTION 1: SAFETY
For Your Own Safety, Read Instruction Manual Before Operating this Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions. This manual uses a series of symbols and signal words 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.
Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, MAY result in minor or moderate injury. It may also be used to alert against unsafe practices.
This symbol is used to alert the user to useful information about
NOTICE
proper operation of the machine.
Safety Instructions for Machinery
OWNER’S MANUAL. Read and understand
this owner’s manual BEFORE using machine. Untrained users can be seriously hurt.
EYE PROTECTION. Always wear ANSI­approved safety glasses or a face shield when operating or observing machinery. to reduce the risk of eye injury or blindness from fly­ing particles Everyday eyeglasses are not approved safety glasses.
HAZARDOUS DUST. Dust created while using machinery may cause cancer, birth defects, or long-term respiratory damage. Be aware of dust hazards associated with each workpiece material, and always wear a NIOSH-approved respirator to reduce your risk.
WEARING PROPER APPAREL. Do not wear clothing, apparel, or jewelry that can become entangled in moving parts. Always tie back or cover long hair. Wear non-slip footwear to avoid accidental slips which could cause a loss of workpiece control.
HEARING PROTECTION. Always wear hear­ing protection when operating or observiing loud machinery. Extended exposure to this noise without hearing protection can cause permanent hearing loss.
MENTAL ALERTNESS. Be mentally alert when running machinery. Never operate under the influence of drugs or alcohol, when tired, or when distracted.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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Additional Safety Instructions for Metal
Cutting Bandsaws
1. BLADE CONDITION. Do not operate with
dull, cracked or badly worn blade. Inspect blades for cracks and missing teeth before each use.
2. HAND PLACEMENT. Never position fin­gers or thumbs in line with the cut. Hands could be crushed in vise or by falling machine components.
3. ENTANGLEMENT HAZARDS. Do not operate this bandsaw without blade guard in place. Otherwise, loose clothing, jewelry, long hair and work gloves can be drawn into working parts.
4. BLADE REPLACEMENT. When replacing blades, make sure teeth face toward the workpiece. Wear gloves to protect hands and safety glasses to protect eyes.
5. WORKPIECE HANDLING. Always support the workpiece with table, vise, or some type of support fixture. Flag long pieces to avoid a tripping hazard. Never hold the workpiece with your hands during a cut.
6. LOSS OF STABILITY. Unsupported workpieces may jeopardize machine sta­bility and cause the machine to tip and fall which could cause serious injury.
7. POWER INTERRUPTION. Unplug machine after power interruption. Machines without magnetic switches can start up after power is restored.
8. FIRE HAZARD. Use EXTREME CAUTION if cutting magnesium. Using the wrong cut­ting fluid will lead to chip fire and possible explosion.
9. CUTTING FLUID SAFETY. Always follow manufacturer’s cutting fluid safety instruc­tions. Pay particular attention to contact, contamination, inhalation, storage and dis­posal warnings. Spilled cutting fluid is a slipping hazard.
10. ATTENTION TO WORK AREA. Never leave a machine running and unattended. Pay attention to the actions of others in the area to avoid unintended accidents.
11. MAINTENANCE/SERVICE. All inspec­tions, adjustments, and maintenance are to be done with the machine OFF and the plug pulled from the outlet. Wait for all moving parts to come to a complete stop.
12. HEARING PROTECTION & HAZARDS.
Noise generated by blade and workpiece vibration, material handling, and power transmission can cause permanent hear­ing loss over time and interfere with com­munication and audible signals. Always wear hearing protection.
13. HOT SURFACES. Due to friction, the workpiece, chips, and some machine com­ponents can be hot enough to burn you.
No list of safety guidelines can be complete. Every shop environment is different. Like all machines there is danger associated with the Model G9742. Accidents are frequently caused by lack of familiarity or failure to pay attention. Use this machine 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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G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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SECTION 2: CIRCUIT REQUIREMENTS
110/220V Operation
Serious personal injury could occur if you connect the machine to power before com­pleting the setup process. DO NOT connect the machine to the power until instructed later in this manual.
Electrocution or fire could result if machine is not grounded and installed in compliance with electrical codes. Compliance MUST be verified by a qualified electrician!
Power Connection Device
The Model G9742 comes prewired with a NEMA 5-15 plug for connection to power. If you rewire the motor to 220V, we recommend using the plug and receptacle shown in Figure 2 for 220V.
GROUNDED
5-15 RECEPTACLE
Grounding Prong
5-15 PLUG
Neutral Hot
GROUNDED
6-15 RECEPTACLE
Current Carrying Prongs
6-15 PLUG
Grounding Prong
Figure 2. Recommended plug types.
5-15 Plug & Outlet
for 110V
6-15 Plug & Outlet
for 220V
NOTICE
The Model G9742 is prewired for 110V oper­ation. If you plan to operate your machine at 220V, the motor must be rewired (see Page 32).
Full Load Amperage Draw
Amp Draw at 110V (prewired) ..................7 Amps
Amp Draw at 220V ...............................3.5 Amps
Power Supply Circuit Requirements
You MUST connect your machine to a grounded circuit that is rated for the amperage given below. Never replace a circuit breaker on an existing cir­cuit with one of higher amperage without consult­ing a qualified electrician to ensure compliance with wiring codes. If you are unsure about the
wiring codes in your area or you plan to con­nect your machine to a shared circuit, consult a qualified electrician.
Extension Cords
Using extension cords may reduce the life of the motor. Instead, place the machine near a power source. If you must use an extension cord:
For 110V, use at least a 14 gauge cord that does not exceed 50 feet in length.
For 220V, use at least a 14 gauge cord that does not exceed 50 feet in length.
The extension cord must have a ground wire and plug pin.
Minimum Circuit Size (110V) ..................15 Amps
Minimum Circuit Size (220V) ................. 15 Amps
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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SECTION 3: SET UP
Set Up Safety
This machine presents serious injury hazards to untrained users. Read through this entire manu­al to become familiar with the controls and opera­tions before starting the machine!
Wear safety glasses dur­ing the entire set up pro­cess!
Items Needed for
Set Up
The following items are needed to complete the set up process, but are not included with your machine:
Description Qty
Safety Glasses (for each person) ............... 1
An Assistant ............................................... 1
Phillips Head Screwdriver #2 ..................... 1
Standard Screwdriver #2 ............................ 1
Hex Wrench 6mm ....................................... 1
Open-End Wrenches
6, 12, 14, & 19mm ................................ 1 ea.
Open-End Wrenches
3
8", 7⁄16" & 1⁄2 " ..... 1 ea.
Unpacking
The Model G9742 is a heavy machine. DO NOT over-exert yourself while unpacking or moving your machine—get assis­tance.
The Model G9742 was carefully packed to ensure that it arrives to you safely. If you discover the machine is damaged after you have signed for delivery, please immediately call Customer Service at (570) 546-9663 for advice.
Save the containers and all packing materials for possible inspection by the carrier or its agent. Otherwise, filing a freight claim can be difficult.
When you are completely satisfied with the con­dition of your shipment, you should inventory the contents.
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G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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Inventory
After all the parts have been removed from the box, you should have the following items:
Box 1: (Figure 3) Qty
A. Base ........................................................... 1
B. Front Panel ................................................. 1
C. Rear Panel.................................................. 1
D. Right Panel ................................................. 1
E. Left Panel ................................................... 1
F. Ch ip Tr ay .................................................... 1
G. Feet ............................................................ 4
H. Wheels ....................................................... 2
I. Axle ............................................................ 1
J. Work Stop Shaft ......................................... 1
K. Work Stop ................................................... 1
L. Belt Cover ................................................... 1
M. V-Belt .......................................................... 1
Assembly Hardware:
—Hex Wrench 4mm ................................... 1
3
—Hex Bolt
8 -16 x 1" .................................. 2
—Hex Bolt M8-1.25 x 30 ............................ 4
—Flat Washer 17mm (Wheels) .................. 4
—Flat Washer 8mm ................................... 4
1
—Cotter Pin —Hex Nut —Flat Washer
8 x 1 (Wheels) ...................... 2
3
8 -16 (Feet) ............................... 4
3
8 ........................................ 1
—Phillips Head Screw M6-1 x 12 ............. 16
1
—Flat Washer —Hex Bolt —Sheet Metal Screw
4 ...................................... 18
1
4 x 20 x 1⁄2 " ............................. 2
1
4-10 x 5⁄16" ............... 1
In the event that any nonproprietary parts are missing (e.g. a nut or a washer), we would be glad to replace them, or for the sake of expedi­ency, replacements can be obtained at your local hardware store.
A
B
C
G
L
M
H
K
F
J
E
D
I
Figure 3. G9742 Loose parts inventory.
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Clean Up
Site Considerations
The unpainted surfaces are coated with a waxy oil to prevent corrosion during shipment. Remove this protective coating with a solvent cleaner or degreaser, such as shown in Figure 4. For thor­ough cleaning, some parts must be removed.
For optimum performance, clean all moving parts or sliding contact surfaces. Avoid chlo-
rine-based solvents, such as acetone or brake parts cleaner that may damage painted surfac­es. Always follow the manufacturer’s instructions when using any type of cleaning product.
Gasoline and petroleum products have low flash points and can explode or cause fire if used to clean machinery. DO NOT use these products to clean the machinery.
Floor Load
Refer to the Machine Data Sheet for the weight and footprint specifications of your machine. Some floors may require additional reinforcement to support both the machine and operator.
Working Clearances
Consider existing and anticipated needs, size of material to be processed through each machine, and space for auxiliary stands, work tables or other machinery when establishing a location for your new machine. See Figure 5 for the minimum working clearances.
Many cleaning solvents are toxic if inhaled. Minimize your risk by only using these products in a well ventilated area.
G2544—Solvent Cleaner & Degreaser
A great product for removing the waxy shipping grease from your machine during clean up.
23 3⁄8"
39"
Figure 5. Minimum working clearances.
Unsupervised children and visitors inside your shop could cause serious per­sonal injury to themselves. Lock all entrances to the shop when you are away and DO NOT allow unsupervised children or visitors in your shop at any time!
Figure 4. Cleaner/degreaser available from
Grizzly.
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G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 15
Cabinet, Wheels &
Feet
This bandsaw is shipped with four rubber feet with posts and two wheels with an axle. It is your option to install four rubber feet if you do not need to move the bandsaw, or install the axle and wheels if you need to move the bandsaw re g ul arly.
Components and Hardware Needed: Qty
Base .................................................................. 1
Front Panel ........................................................ 1
Rear Panel ......................................................... 1
Right Panel ........................................................ 1
Left Panel .......................................................... 1
Ramp ................................................................. 1
Feet ................................................................... 4
Wheels............................................................... 2
Axle ................................................................... 1
—Flat Washers 17mm ................................ 4
—Cotter Pins .............................................. 2
—Hex Nuts
—Phillips Head Screw M6-1 x 12 ............. 16
—Flat Washer
—Hex Bolt M8-1.25 x 30 ............................ 4
—Flat Washer 8mm ................................... 4
3
8 -16 ........................................ 4
1
4 ...................................... 16
Figure 6. Installing wheels and feet.
5. Position the base on the floor, and adjust the
feet until the base is level and is stable.
6. Tighten the hex nuts against the base to lock the feet in position.
7. Position the front and rear panels on the base and install the panels to the base with four M6-1 x 12 Phillips head screws and flat washers (see Figure 7).
To install the wheels, feet, and the cabinet:
1. At the end of the base with the axle holes, insert the axle into the base (see Figure 6).
2. Slide a 17mm flat washer and wheel onto
each end of the axle, followed by another washer and cotter pin.
3
3. Thread a
4. Thread the two rubber feet into the base (see Figure 6).
8-16 hex nut on both feet.
Figure 7. Front and rear panels installed.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
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8. Position the left panel between the front and rear panels, and secure it in place with six M6-1 x 12 Phillips head screws and flat washers (see Figure 8).
Figure 8. Left Panel installed.
9. Position the right panel between the front
and rear panel, and secure it in place with six M6-1 x 12 Phillips head screws and flat wash­ers (see Figure 9).
Get assistance when lifting this machine. Otherwise, you can severely injure yourself!
10. With the help of an assistant or a hoisting
device, place the bandsaw onto the cabinet.
11. Secure the bandsaw to the cabinet with four M8-1.25 x 30 hex bolts and 8mm flat washers (see Figure 10).
Figure 9. Installing right panel.
Figure 10. Attaching bandsaw to cabinet.
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Page 17
Shipping Strap &
Squaring Vise to
Stop Adjustment
To ensure that your bandsaw arrives without damage to the hinge system, a shipping strap was installed. After removing the shipping strap, you will have to make a series of adjustments, beginning with the feed stop bolt.
To remove the shipping strap and adjust the feed stop bolt:
1. Remove the shipping strap hex bolt and
strap with a 12mm wrench (see Figure 11).
Note: Keep this shipping strap in the event that
you must transport or ship the bandsaw.
2. Adjust the feed stop bolt and jam nut with a 14mm wrench (Figure 12), so the bandsaw blade teeth are just below the table surface when the cut is complete.
Blade
To ensure that your bandsaw will make cuts that match the degree scale, you must make sure to square the vise to the blade.
To square the vise to the blade:
1. Rotate the headstock until the pointer reads
"0" on the tabletop scale, and tighten the headstock lock lever so the headstock stays indexed at zero.
2. Using a 6mm wrench, loosen the two cap screws that hold the vise to the table (see Figure 13).
Square
Headstock
Lock Lever
Figure 11. Removing shipping strap.
Figure 12. Feed stop bolt.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Figure 13. Squaring vise to blade, headstock,
and table scale.
3. Using a small machinists square, adjust the vise so it is square to the blade.
4. Tighten the two cap screws, so the vise and blade are square with one another.
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Chip Tray & Cast
Iron Stop
The chip tray directs small workpieces into a buck­et when the cut is complete. The cast iron stop allows you to repeat cuts at the same length.
OFF Button Lever
After you have removed the shipping strap and have adjusted the headstock stop bolt, you must adjust the OFF button lever stop bolt, so the bandsaw shuts OFF automatically when a cut is complete.
To install the chip tray and cast iron stop:
1. Position the chip tray as shown in Figure 14
if you choose to use this accessory.
Chip tray
Figure 14. Chip tray installed.
2. Insert the stop rod approximately 3⁄4" into the
saw until the end of the rod is just flush with the inside casting surface.
To set the OFF button lever stop bolt:
1. With the headstock in the complete down
position, loosen the 12mm stop bolt and jam nut (see Figure 16).
Stop Bolt and
Jam Nut
OFF Button
Figure 16. OFF button lever and stop bolt.
3. Using the 4mm hex wrench, tighten the set
screw shown in Figure 15.
Set Screw
Set Screw
Figure 15. Installing stop rod.
4. Slide the cast iron stop onto the stop rod
and tighten the set screw.
2. Push down on the OFF button lever so the button is completely depressed.
3. While keeping the lever depressed, use your fingertips to turn the stop bolt until the head touches the lever.
1
4. Back off the stop bolt jam nut.
3 turn and tighten the
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Page 19
Pulley Cover
When opened, the pulley cover gives you access to change the pulley ratio so the bandsaw can cut at one of three speeds.
ENTANGLEMENT HAZARD! You MUST install the pulley cover before operating! Otherwise, severe injury may occur.
To install the pulley cover:
4. Loosen the belt tension knob enough to
install the belt on the appropriate pulley that will give the required blade speed. Refer to Blade Speed on Page 19 for blade speed selections.
5. Adjust the belt tension knob (Figure 18), so the belt has the center, and close the cover.
1
4" deflection when pressed in
1. UNPLUG THE BANDSAW!
2. Position and rotate the pulley cover into
place as shown in Figure 17.
1
3. Install the two ers that secure the pulley cover.
4-20 x 1⁄2" hex bolts and wash-
Belt Tension
Knob
Figure 18. Belt tension knob.
Figure 17. Positioning the pulley cover.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
-17-
Page 20
Test Run
Recommended
Adjustments
Projectiles thrown from the machine could cause serious eye injury. Wear safety glasses during assembly and operation.
Starting the machine:
1. Read the entire instruction manual.
2. Make sure all tools and foreign objects have
been removed from the machine.
3. Put on safety glasses and secure loose clothing or long hair.
4. Raise the bandsaw by the handle.
5. Start the bandsaw while keeping your finger
near the ON/OFF switch at all times dur­ing the test run. The bandsaw should run smoothly with little or no vibration.
The adjustments listed below have been per­formed at the factory. However, because of the many variables involved with shipping, we recommend that you at least verify the following adjustments to ensure the adjustments remain unchanged.
Step-by-step instructions on verifying these adjustments can be found in SECTION 6:
MAINTENANCE on Page 26 and SECTION 7: SERVICE on Page 27.
Factory adjustments that should be verified:
1. Blade Tracking (Page 30).
2. Squaring Vise to Blade (Page 15).
3. Blade Guides (Page 22).
— If you suspect any problems, immediately stop the bandsaw and correct before con­tinuing.
—If you need any help with your bandsaw
call our Tech Support at (570) 546-9663.
-18-
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 21
SECTION 4: OPERATIONS
Operation Safety
Damage to your eyes, lungs, and ears could result from using this machine without proper protective gear. Always wear safety glasses, a respirator, and hearing protection when operating this machine.
Loose hair and cloth­ing could get caught in machinery and cause seri­ous personal injury. Keep loose clothing and long hair away from moving machinery.
NOTICE
If you have never used this type of machine or equipment before, WE STRONGLY REC­OMMEND that you read books, trade maga­zines, or get formal training before begin­ning any projects. Regardless of the con­tent in this section, Grizzly Industrial will not be held liable for accidents caused by lack of training.
Blade Speed
The Model G9742 has these three blade speeds: 80, 120, and 200 FPM.
To change blade speeds:
1. UNPLUG THE BANDSAW!
2. Determine the best speed for your cut. The
table in Figure 19 is provided as a basic guideline. Material thickness and the type of blade used will factor into FPM selection.
Material Feet Per Minute
(FPM)
Aluminum 250
Plastics 800
Brass (soft) 500
Carbon Tool Steel 100-150
Cast Iron 100-150
Cold Rolled Steel 150-200
High Speed Steel 90-125
Malleable Iron 150-200
Hard Rubber 150-200
Figure 19. Blade speed table.
3. Slacken the V-belt and position it for the
desired FPM (see Figure 20).
80
120
200
Motor Pulley
Wheel Pulley
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Figure 20. V-belt positions in FPM.
4. Tension the V-belt as described in the Pulley Cover section on Page 17.
-19-
Page 22
Blade Selection
The chart below is a basic starting point for choos­ing blade type based on teeth per inch (TPI) for variable tooth pitch blades and for standard raker type bimetal blades/HSS blades. However, for exact specifications of bandsaw blades, contact the blade manufacturer.
Here are some general rules of thumb with respect to bandsaw blade use.
At least three teeth must contact the metal at any phase of the cut. Otherwise, the teeth can load up with metal, fracture, and break off. If the TPI is too high, the teeth can load up with material and overheat, damaging the blade.
For a faster but rougher cut, use a blade with a lower TPI and a higher feed rate.
For a slower but smoother cut, use a blade with more TPI and a lower feed rate.
To select the correct blade TPI:
1. Measure the material thickness. This mea-
surement is the length of cut taken from where the tooth enters the workpiece, sweeps through, and exits the workpiece.
2. Refer to the "Material Thickness" row of the blade selection chart in Figure 21, and read across to find the workpiece thickness you need to cut.
3. Refer to the "Shape" of metal and "Material Type" columns, and find the shape and material to be cut.
4. In the applicable row, read across to the right and find the box where the row and column intersect. Listed in the box is the minimum TPI recommended for the variable tooth pitch blades, and the TPI for bimetal raker blades in parentheses.
TOOTH SELECTION
mm
50
inch
2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19
75 100 150 200 250 300 350 400
3/4
4/6
5/8
3/4
3/4
4/6
2/3
2/3 1.4/2.5
CUTTING SPEED RATE RECOMMENDATION
Material
Carbon
Steel
Angle
Steel
Thin
Tube
Aluminum
Alloy
Copper
Alloy
Speed FPM
(M/Min)
196~354
(60) (108)
180~220
(54) (67)
180~220
(54) (67)
220~534
(67) (163)
229~482
(70) (147)
Material Material Material
Tool Steel
High-Speed
Tool Steel
Cold-Work
Tool Steel
Hot-Work
Tool Steel
Oil-Hardened
Tool Steel
Speed FPM
(M/Min)
203 (62)
75~118
(25) (36)
95~213
(29) (65)
203 (62)
203~213 (62) (65)
Alloy Steel
Mold Steel
Water
Hardened
Tool Steel
Stainless
Steel
CR Stainless
Steel
1.4/2.5
Speed FPM
(M/Min)
111~321 (34) (98)
246 (75)
242 (75)
85
(26)
85-203
(26) (62)
2/3
1.5/.8
Free Machining
Stainless Steel
Gray
Cast Iron
Ductile
Austenitic
Cast Iron
Malleable
Cast Iron
Plastics
450
1.5/.8
Speed FPM
(M/Min)
150~203 (46) (62)
108~225 (33) (75)
65~85
(20) (26)
321
(98)
220 (67)
-20-
Figure 21. Blade selection chart.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 23
Feed Rate
The speed at which the saw blade will cut through a workpiece is controlled by blade type and feed rate.
The feed rate is controlled by the valve lever and feed rate dial on the hydraulic cylinder shown in
Figure 22.
To set the feed rate:
1. Raise the headstock and turn the valve lever
sideways (horizontally).
2. Clamp the workpiece in the table vise.
3. Move the headstock and blade a few inches
above the workpiece.
4. With the correct saw blade installed and blade speed selected, turn the saw ON.
Valve Lever
Feed Rate Dial
Figure 22. Bandsaw feed rate control.
Turning the valve lever in-line with the piping (as shown in the Figure 22) opens it up, which allows the fluid to circulate and allows the head to move. Turning the valve lever sideways or perpendicular to the pipiing closes it, which locks the headstock in place.
The feed rate dial controls the amount of fluid that circulates around the hydraulic cylinder, which in turn, controls the speed that it moves.
5. Slowly rotate the feed rate dial to a conserva­tive feed rate until the saw begins to cut the workpiece.
6. Observe the chips that exit the cut, and increase or decrease the feed rate according to the chip characteristics (see Figure 23).
Chips are width of tooth, thin and curled, and silvery: Optimum speed and feed rate.
Chips are silvery, thin, small, or powdery: Increase feed rate.
Chips are large, curled, blue or brown, or smoking: Decrease feed rate.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Figure 23. Reading chips.
-21-
Page 24
Blade Guides
UNPLUG the bandsaw power cord, and NEVER adjust the blade guides while the saw blade is moving!
The blade guide side bearings support and twist the blade straight so the blade will enter the workpiece perpendicular to the table surface. The blade guide support bearings prevent blade twist by stopping the blade from being pushed back during a cut. Both adjustments are critical for cor­rect saw operation (see Figure 24).
Guide Bearing
Adjustment
Hex Bolt
Side Bearing
Eccentric and
Jam Nut
Blade Guide Support Bearing
Side Bearing
Eccentric
and Jam Nut
Figure 25. Blade guide adjustments.
4. Adjust the blade guide housing so the sup-
port bearing rests against the rear of the blade (see Figure 24).
5. Using a 14mm wrench, loosen the outer side bearing eccentric jam nuts.
6. Using a 12mm wrench, rotate the side bear­ing eccentrics until the bearings have a bear­ing-to-blade clearance of 0.000" to 0.001". The bearings must not pinch the blade and the blade needs to be perpendicular to the table.
Guide Bearing
Adjustment Hex Bolt
Blade Guide
Side Bearing
Figure 24. Blade guide adjustment locations.
To adjust the guide bearings:
Note: Make sure the blade is tensioned and
tracks correctly before you adjust the blade guide bearings. Refer to Blade Tension and Blade Tracking on Pages 23 and 30 for further instruc­tions.
1. UNPLUG THE BANDSAW!
2. Let the bandsaw headstock park in the full
down position.
3. Using a 12mm wrench, loosen the guide bearing adjustment hex bolt (see Figure 25).
7. Tighten the jam nuts, loosen the lock knob, and slide the blade guide close to the workpiece so the blade is supported and will not twist during the cut (see Figure 26).
Lock Knob
Figure 26. Blade guide position lock knob.
-22-
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 25
Blade Tension
Proper blade tension is essential to long blade life, straight cuts, and efficient cutting.
Two major signs that you do not have proper blade tension are: 1) the blade stalls in the cut and slips on the wheels, and 2) the blade frequently breaks from being too tight.
To tension the blade on the bandsaw:
1. Make sure the blade is tracking properly.
2. UNPLUG THE BANDSAW!
Let the blade reach full speed before engag­ing the workpiece. Never start a cut with the blade in contact with the workpiece (see Figure 27).
Chips should be curled and silvery. If the chips are thin and powder like, increase your feed rate.
Burned chips indicate a need to reduce your blade speed.
Wait until the blade has completely stopped before removing the workpiece from the vise, and avoid touching the cut end—it could be very hot!
3. Slide the blade guides as far apart as they
will go, then tighten them down again.
4. Turn the tension knob clockwise to tighten
the blade, or counterclockwise to loosen the blade.
Note: To fine tune blade tension, use a
blade tensioning gauge, like the one found in SECTION 5: ACCESSORIES on Page 24. Please follow the instructions included with your gauge and the blade manufacturer's recommendations on blade tension.
Operation Tips
The following tips will help you safely and effec­tively operate your bandsaw, and help you get the maximum life out of your saw blades.
Support long pieces so they won't fall when cut, and flag the end to alert passers-by of potential danger.
Adjust the blade guides as close as possible to the workpiece to minimize side-to-side blade movement.
Use coolant when possible to increase blade life.
Work Stop
Tips for horizontal cutting:
Use the work stop to quickly and accurately cut multiple pieces of stock to the same length.
Clamp the material firmly in the vise jaws to ensure a straight cut through the material, and use the positive lock to speed produc­tion.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Figure 27. Typical proper starting position.
-23-
Page 26
ACCESSORIES
SECTION 5: ACCESSORIES
G5107— 64 -1/ 2 x 1/2 x .025 10 TPI Raker G5108—64-1/2 x 1/2 x .025 14 TPI Raker G5109—64-1/2 x 1/2 x .025 18 TPI Raker G5110—64-1/2 x 1/2 x .025 24 TPI Raker G5111—64-1/2 x 1/2 x .025 6-10 Variable Pitch G5112—64-1/2 x 1/2 x .025 8-12 Variable Pitch G5113 — 6 4 -1 / 2 x 1/2 x .025 10-14 Variable Pitch G5114 — 6 4 -1/ 2 x 1/2 x .025 14-18 Variable Pitch G5115 — 64 -1/ 2 x 1/2 x .025 20-24 Variable Pitch
®
Power Tw ist H9815—A
A smart upgrade for any machine that uses V-belts. These link belts provide smooth running with less vibration, heat, and noise than solid belts. Power Twist in minutes to any size—just add or remove sec­tions to fit your needs. Once you use a link belt, you'll like it so much you'll want to convert all your machines!
V-Belts
1
2" x 4'
®
V-Belts can be customized
Figure 28. Blades.
H5408—Blade Tensioning Gauge
The Blade Tensioning Gauge ensures long blade life, reduced blade breakage, and straight cutting by indicating correct tension. A precision dial indi­cator provides you with a direct readout in PSI.
Figure 29. H5408 blade tensioning gauge.
Figure 30. Power Twist® V-Belt.
T20640—Machinery’s Handbook
For more than 90 years, this handbook has been the benchmark by which machinists’ and engi­neering texts have been judged. Includes a wealth of information on mathematics, mechanics, mea­surements, and materials. A must have for the amateur or professional.
-24-
Figure 31. Machinery’s Handbook.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 27
G5618—Deburring Tool w/ 2 Blades G5619—Extra Aluminum Blades G5620—Extra Brass and Cast Iron Blade
The quickest tool for smoothing freshly machined metal edges. Comes with two blades—one for steel/aluminum and one for brass/cast iron.
Figure 32. G5618 deburring tool.
T20501—Face Shield Crown Protector 4" T20502—Face Shield Crown Protector 7" T20503—Face Shield Window T20448—Economy Clear Safety Glasses T20452—"Kirova" Anti-Reflective Glasses T20456—"Dakura" Clear Safety Glasses
®
H0736—Shop Fox
Safety Glasses
These glasses meet ANSI Z87.1-2003 specifica­tions. Buy extras for visitors or employees. You can't be too careful with shop safety!
G7615—Oil Can w/Steel Nozzle G7616—Oil Can w/Plastic Nozzle G7617—Oil Can w/Flexible Plastic Nozzle
Whether you’re lubricating cutting tools or main­taining machinery in top operating condition, you’ll appreciate these High Pressure Oil Cans. Each can holds 5 ounces of oil and has a trigger acti­vated, high pressure pump.
Figure 34. High pressure oil cans.
G9256—6" Dial Caliper G9257—8" Dial Caliper G9258—12" Dial Caliper
These traditional dial calipers are accurate to
0.001" and can measure outside surfaces, inside surfaces, and heights/depths. Features stainless steel, shock resistant construction and a dust proof display.
T20502
T20452
T20503
T20448
T20456
H0736
Figure 33. Our most popular eye protection.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Figure 35. Grizzly® dial calipers.
-25-
Page 28
SECTION 6: MAINTENANCE
Always disconnect power to the machine before performing maintenance. Failure to do this may result in serious person­al injury.
Schedule
For optimum performance from your machine, follow this maintenance schedule and refer to any specific instructions given in this section.
Daily Check
Loose mounting bolts.
Damaged saw blade.
Worn or damaged wires.
Any other unsafe condition.
Clean after each use.
Proper blade tension.
Monthly Check
Lubricate vise screw.
Check V-Belt for wear.
Lubrication
The gearbox and all bearings are sealed and per­manently lubricated so no scheduled lubrication is needed. However, you must periodically lubricate adjustment locations and bare metal surfaces. Refer to Figure 36 for lubrication points.
Lubricate the following areas listed below:
A. Blade Tension Mechanism: Open the main
blade guard, and drop a few drops of oil on the tension knob lead screw.
B. Blade and Guides: Drop a few drops of
light machine oil on the blade and the blade guides daily.
C. Gear Box: Is packed with grease and should
only be changed if you suspect contamina­tion has entered.
D. Table and Machined Surfaces: Keep bare
metal surfaces rust-free with regular applica­tions of products like SLIPIT®. For long term storage you may want to consider products like Boeshield T-9™.
Annual Check
Inspect gear lubrication.
Cleaning
Cleaning the Model G9742 is relatively easy. Keeping metal chips away from bandsaw mecha­nisms is important to making sure that your bandsaw lasts a long time. Use a shop vacuum or brush off metal chips frequently.
-26-
E. Vise Lead Screw: Drop a few drops of light
machine oil on the vise lead screw weekly.
A
E
D
Figure 36. Lubrication points.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
B
C
Page 29
SECTION 7: SERVICE
Review the troubleshooting and procedures in this section to fix your machine if a problem develops. If you need replacement parts or you are unsure of your repair skills, then feel free to call our Technical Support at (570) 546-9663.
Troubleshooting
Motor & Electrical
Symptom Possible Cause Possible Solution
Machine does not start or a breaker trips.
Machine stalls or is underpowered.
Machine has vibration or noisy operation.
1. Plug/receptacle is at fault or wired incorrectly.
2. Start capacitor is at fault.
3. Wall fuse/circuit breaker is blown/tripped.
4. Motor connection wired incorrectly.
5. Power supply is at fault/switched OFF.
6. Motor ON/OFF switch is at fault.
7. Wiring is open/has high resistance.
8. Motor is at fault.
1. Wrong blade for the workpiece material.
2. Wrong workpiece material.
3. Feed rate/cutting speed too fast for task.
4. Blade is slipping on wheels.
5. Low power supply voltage.
6. Motor bearings are at fault.
7. Plug/receptacle is at fault.
8. Motor connection is wired incorrectly.
9. Motor has overheated.
10. Motor is at fault.
1. Motor fan is rubbing on fan cover.
2. Blade is at fault.
3. Gearbox is at fault.
4. Wrong blade & too slow of speed.
1. Test for good contacts; correct the wiring.
2. Test/replace if faulty.
3. Ensure correct size for machine load; replace weak breaker.
4. Correct motor wiring connections.
5. Ensure hot lines have correct voltage on all legs and main power supply is switched ON.
6. Replace faulty ON/OFF switch.
7. Check for broken wires or disconnected/ corroded connections, and repair/replace as necessary.
8. Test/repair/replace.
1. Use blade with correct properties for your type of cutting.
2. Use metal with correct properties for your type of cutting.
3. Decrease feed rate/cutting speed.
4. Adjust blade tracking and tension.
5. Ensure hot lines have correct voltage on all legs.
6. Test by rotating shaft; rotational grinding/loose shaft requires bearing replacement.
7. Test for good contacts; correct the wiring.
8. Correct motor wiring connections.
9. Clean off motor, let cool, and reduce workload.
10. Test/repair/replace.
1. Replace dented fan cover; replace loose/ damaged fan.
2. Replace/resharpen blade.
3. Rebuild gearbox for bad gear(s)/bearing(s).
4. Change blade and or speed.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
-27-
Page 30
Bandsaw Operations
SYMPTOM POSSIBLE CAUSE CORRECTIVE ACTION
Machine is loud when cutting or bogs down in the cut.
Blades break often. 1. Blade is not tensioned correctly.
Blade dulls prematurely. 1. The cutting speed is too fast.
Blade wears on one side. 1. The blade guides are worn or mis-
Teeth are ripping from the blade.
The cuts are crooked. 1. The feed pressure is too high.
1. Excessive feed rate.
2. The blade TPI is too great, or the material is too coarse.
2. The workpiece is loose in the vise.
3. The feed or cut speed is wrong.
4. The blade TPI is too great, or the material is too coarse.
5. The blade is rubbing on the wheel flange.
6. The bandsaw is being started with the blade resting on the workpiece.
7. The guide bearings are misaligned, or the blade is rubbing on the wheel flange.
8. The blade is too thick, or the blades are of low quality.
2. The blade TPI is too coarse.
3. The blade feed pressure is too light.
4. The workpiece has hard spots, welds, or scale is on the material.
5. The blade is twisted.
6. The blade is slipping on the wheels.
adjusted.
2. The blade guide slide bracket is loose.
3. The wheels are out of alignment.
1. The feed pressure is too heavy and the blade speed is too slow; or the blade TPI is too coarse for the workpiece.
2. The workpiece is vibrating in the vise.
3. The blade gullets are loading up with chips.
2. The guide bearings are out of adjustment, or too far away from the workpiece.
3. The blade tension is low.
4. The blade is dull.
5. The blade speed is wrong.
1. Refer to Feed Rate on Page 21, or Changing Blade Speed on Page 19, and adjust as required.
2. Refer to Blade Selection on Page 20 and adjust as required.
1. Check to see that blade is not excessively tight or too loose.
2. Clamp the workpiece tighter, or use a jig to hold the workpiece.
3. Refer to Feed Rate on Page 21, or Changing Blade Speed on Page 19, and adjust as required.
4. Refer to Blade Selection on Page 20 and adjust as required.
5. Refer to Blade Tracking on Page 30, and adjust as required.
6. Start bandsaw and then slowly lower the headstock by setting the feed rate.
7. Refer to Blade Tracking on Page 30, or Blade Guides on Page 22 and adjust as required.
8. Use a higher quality blade.
1. Refer to Changing Blade Speed on Page 19, and adjust as required.
2. Refer to Blade Selection on Page 20 and adjust as required.
3. Refer to Feed Rate on Page 21, and adjust as required.
4. Increase the feed pressure, and reduce the cutting speed.
5. Replace the blade.
6. Refer to Blade Tension on Page 23, and adjust as required.
1. Refer to Blade Guides on Page 22 and replace or adjust.
2. Tighten the blade guide bracket.
3. Refer to Blade Tracking on Page 30, and adjust as required.
1. Refer to Blade Selection on Page 20 and decrease the feed pressure. Refer to Feed Rate on Page 21, and adjust as required.
2. Re-clamp the workpiece in the vise, and use a jig if required.
3. Use a coarser-tooth blade.
1. Refer to Feed Rate on Page 21, and adjust as required.
2. Refer to Blade Guides on Page 22 and replace or adjust.
3. Refer to Blade Tension on Page 23, and adjust as required.
4. Refer to Changing the Blade on Page 29 and replace the blade.
5. Refer to Changing Blade Speed on Page 19, and adjust as required.
-28-
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 31
Blade Change
Blades should be changed when they become dull, damaged, or when you are using materials that require a blade of a certain type or tooth count.
To change the bandsaw blade:
1. UNPLUG THE BANDSAW!
2. Hold the headstock, unattach the feed cyl-
inder by removing the cap screw, then raise the headstock to the full vertical position (see
Figure 37).
4. Loosen the tension knob and slip the blade
off of the wheels.
5. Install the new blade through both blade guide bearings, as shown in Figure 39, and around the bottom wheel.
Figure 39. Typical blade installation.
Feed Cylinder
Cap Screw
Figure 37. Disengaging the feed cylinder.
3. Push the safety stop in, use a screwdriver
to remove the upper and lower blade guide guards, and loosen the blade guides (see Figure 38).
Safety
Stop
Figure 38. Blade guide guards and fasteners.
Blade
Guide
Guards
6. Hold the blade around the bottom wheel with one hand and slip it around the top wheel with the other hand, keeping the blade between the blade guide bearings.
Note: It is sometimes possible to flip the
blade inside out, in which case the blade will be installed in the wrong direction. Check to make sure the blade teeth are facing toward the workpiece, as shown in Figure 39, after mounting on the bandsaw. Some blades will have a directional arrow as a guide.
7. When the blade is around both wheels, adjust the position so the back of the blade is against the shoulder of the wheels.
8. Tighten the tension knob as tight as neces­sary so the blade will not slip on the wheels during start up.
9. Spin the wheel by hand until the blade resumes the previous tracking.
—If the tracking needs to be adjusted, refer
to the Tracking procedure in the next sec­tion.
—If the tracking is fine, proceed to Blade
Tension on Page 23.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
-29-
Page 32
10. Reinstall the blade guards, and adjust the blade guides as described in Blade Guides on Page 22
7. Adjust the tracking set screw with a 4mm hex wrench as shown in Figure 40, then tighten the cap screw loosened in Step 5.
11. Re-attach the feed cylinder.
Blade Tracking
The blade tracking has been properly set at the factory. The tracking will rarely need to be adjusted if the bandsaw is used properly.
To adjust the blade tracking on the bandsaw:
1. UNPLUG THE BANDSAW!
2. Raise the headstock and lock it in place by
pushing in the safety stop knob.
3. Remove both blade guide assemblies.
4. Open the wheel access cover.
5. Loosen, but do not remove the lower cap
screw in the blade wheel tilting mechanism (Figure 40).
—Tightening the set screw will move the
blade closer to the shoulder of the wheel.
—Loosening the set screw will move the
blade away from the shoulder.
8. Tension the blade.
9. Spin the wheel by hand and observe how the
blade tracks on the wheel.
—If the blade tracks along the shoulder of
the wheel (without rubbing), the blade is tracking properly and this adjustment is completed.
—If the blade drifts away from the shoulder
of the wheel or hits the shoulder, repeat
Steps 5-8.
10. Replace the blade guard and blade guide
assemblies.
11. Adjust the blade guides as needed. Refer to Blade Guides on Page 22
Tracking
Set Screw
Lower Cap Screw
Figure 40. Adjusting tracking set screw.
6. Relax the blade tension.
-30-
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 33
Electrical Components
Figure 41. Capacitor
Figure 42. Switch wiring right-hand view.
Figure 43. Switch wiring rear view.
Figure 44. Switch wiring left-hand view.
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
-31-
Page 34
220 Wiring
G9742 Wiring Diagram
Disconnect power from machine before performing any electrical service. Failure to do this will result in a shock hazard leading to injury or death.
110V Power Supply
Load
Hot
Neutral
Neutral
Green
Green
White
Black
Paddle
Switch
220V Power Supply
Ground
Ground
110V
Connection
Green
Neutral
White
Black
Hot
Bandsaw Motor Electrical Box
220V
Red
Red
Black
Black
Gray
Gray
Yellow
Yellow
Motor
Motor
Bandsaw Motor Capacitor Cover
Wire number Wire Color
1 = Black 2 = Yellow 3 = Red 4 = Gray
Capacitor
Capacitor
-32-
Load
Hot
White
Black
Neutral
Hot
Ground
Ground
Green
Paddle Switch
Connection
Green
Hot
White
Black
Hot
Bandsaw Motor Electrical Box
Capacitor
Capacitor
Motor
Motor
Bandsaw Motor Capacitor Cover
Red
Black
Black
Gray Yellow
Yellow
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Red
Gray
Wire number Wire Color
1 = Black 2 = Yellow 3 = Red 4 = Gray
Page 35
Saw Parts Breakdown
75
101
100
80
79
75
109
108
101-1
182
35
50
72
89
31
112
104
103
109
81
83
100
72
73
93
92
120
2
123
84
134
71
98
8
133
1
11
97
8
12
320
35
102
132
201
76
200
199
66
35
132-1
102
97
59
11
58
3
48
51
50
71-1
198
113
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
-33-
Page 36
Saw Parts List
REF PART # DESCRIPTION REF PART # DESCRIPTION
1 PB07 HEX BOLT 5/16-18 X 3/4 92 P9742092 GEAR BOX GASKET
2 PN05 HEX NUT 1/4-20 93 P9742093 COVER
3 PW06 FLAT WASHER 1/4 97 PS08M PHLP HD SCR M5-.8 X 12
8 PW07 FLAT WASHER 5/16 98 P9742098 KNOB 5/16-18 X 45
11 PB03 HEX BOLT 5/16-18 X 1 100 PS23 PHLP HD SCR 8-32 x 1/4
12 PN02 HEX NUT 5/16-18 101 P9742101 WORM GEAR PULLEY
31 PB03 HEX BOLT 5/16-18 X 1 101-1 PSS38 SET SCREW 5/16-18 X 5/8
35 PLW04 LOCK WASHER 3/8 102 PLW01 LOCK WASHER 5/16
48 PS06 PHLP HD SCR 10-24 X 3/8 103 P9742103 BLADE TENSION SLIDING PLATE
50 PB07 HEX BOLT 5/16-18 X 3/4 104 PSS38 SET SCREW 5/16-18 X 5/8
51 PW07 FLAT WASHER 5/16 108 P9742108 SHAFT BLOCK
58 P9742058 KNOB 1/4-20 X 5/8 109 P9742109 BLADE TENSION SLIDING GUIDE
59A P9742059A BLADE BACK SAFETY COVER V2.11.06 112 PVA22 V-BELT A-22 4L220
66 P9742066 KNOB 3/8-16 X 1-1/4 113 G5109 BLADE 64-1/2 X 1/2 X.025
71 P9742071 BLADE WHEEL FRONT 120 P9742120 BUSHING 19 X 17 X 7
71-1 PSS17 SET SCREW 5/16-18 X 5/16 123 PB05 HEX BOLT 1/4-20 X 3/4
72 P9742072 BEARING COVER 132 P9742132 SAFETY GUARD RIGHT
73 PK23M KEY 5 X 5 X 25 133 PS06 PHLP HD SCR 10-24 X 3/8
75 PB02 HEX BOLT 1/4-20 X 5/8 134 P9742134 WIRE CLAMP
76 P9742076 SWITCH CUT OFF TIP 182 PW07 FLAT WASHER 5/16
79 P9742079 BLADE TENSION ADJ KNOB 198 PR05M EXT RETAINING RING 15MM
80 P9742080 COMPRESSION SPRING 199 PB03 HEX BOLT 5/16-18 X 1
81 P9742081 BODY FRAME 200 PSB04 CAP SCREW 1/4-20 X 1/2
83 PB41 HEX BOLT 1/2-12 X 1-1/2 201 PN02 HEX NUT 5/16-18
84 P9742084 MOTOR MOUNT PLATE 320 PB58 HEX BOLT 3/8-16 X 2
89 P9742089 OIL SEAL
-34-
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 37
Stand Parts Breakdown
27
85-2
28
194
85-1
307
196V2
111
126
85-3
85-4
305V2
124
302V2
301V2
126
125
313
312
86-1
86
303V2
314
16
74
312
308
311
44
85
319
310
309
318
322
320
11
304
315
50
321
338
51
324
54
325
323
17
328
329
362
363
255
258
254
262
259
263
261
256
257
330A-1
21
19
20
334
359
366
316
300
367
368
364
363
361
330A
333
9
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
-35-
Page 38
Stand Parts List
REF PART # DESCRIPTION REF PART # DESCRIPTION
9 P9742009 WHEEL 302A P9742302A VISE JAW BRACKET-FRONT V2.01.08 11 PB03 HEX BOLT 5/16-18 X 1 303A P9742303A VICE JAW BRACKET-REAR V2.01.08 16 P9742016 MOTOR CABLE 304 P9742304 SWIVEL BASE UPPER 17 P9742017 PIVOTING ROD 305A P9742305A BRACKET W/NUT V2.01.08 19 P9742019 WORK STOP 306 P9742306 ACME NUT 20 PSS17 SET SCREW 5/16-18 X 5/16 307A P9742307A ACME SCREW V2.01.08 21 P9742021 STOCK STOP ROD 1/2 X 216 308 P9742308 BUSHING 27 P9742027 HANDWHEEL HANDLE 309 PLW01 LOCK WASHER 5/16 28 P9742028 HANDWHEEL 310 PSB30 CAP SCREW 5/16-18 X 1/2 44 P9742044 POWER CABLE 311 PB07 HEX BOLT 5/16-18 X 3/4 50 PB07 HEX BOLT 5/16-18 X 3/4 312 PW07 FLAT WASHER 5/16 51 PW07 FLAT WASHER 5/16 313 PB12 HEX BOLT 5/16-18 X 1-1/4 54 P9742054 PIVOT 314 PSS03 SET SCREW 1/4-20 X 3/8 74 PK12M KEY 5 X 5 X 30 315 P9742315 POSITIONING RING 85 P9742085 MOTOR 1/2 HP 316 PN06 HEX NUT 1/2-12 85-1 P9742085-1 MOTOR FAN COVER 318 PB27 HEX BOLT 1/2-13 X 2-1/2 85-2 P9742085-2 MOTOR FAN 319 PN08 HEX NUT 3/8-16 85-3 P9742085-3 CAPACITOR COVER 321 P9742321 POSITION PIN 85-4 P9742085-4 S. CAPACITOR 200MFD 125VAC 322 P9742322 POSITION KNOB 86 P9742086 MOTOR PULLEY 323 P9742323 BUSHING 86-1 PSS17 SET SCREW 5/16-18 X 5/16 324 P9742324 HANDLE 111 P9742110A PULLEY COVER ASSEMBLY 325 PCB19 CARRIAGE BOLT 3/8-16 X 1 3/4 124 P9742124 SHIPPING BRACKET 328 P9742328 SWITCH BASE 125 PB09 HEX BOLT 5/16-18 X 1/2 329 PS06 PHLP HD SCR #10-24 X 3/8 126 PS04 PHLP HD SCR 1/4-20 X 1/2 330A P9742330A PADDLE SWITCH W/SWITCH BOX V2.11.06 194 P9742194 FENDER WASHER 1/4 330A-1 G8988 PADDLE SWITCH V2.11.06 196V2 P9742196V2 KNOB #8 X 3/4 V2.06.08 333 P0561096 COTTER PIN 3 X 25 254 P9742254 SUPPORT ROD 334 P9742334 CHIP TRAY 255 PSS04 SET SCREW 1/4-20 X 5/16 338 P9742338 SCALE 256 PW08 FLAT WASHER #8 359 P9742359 DELUXE STAND ASSEMBLY 257 P9742257 HEX BOLT #8-32 X 1/2 361A P9742361A WHEEL ROD 21" TO 22" V2.04.04 258A P9742258A CYLINDER ASSEMBLY V2.06.06 362 PB26M HEX BOLT M8-1.25 X 30 259 P9742259 CYLINDER UPPER SUPPORT 363 PLW04 LOCK WASHER 3/8 261 PSS47 SET SCREW #8-32 X 5/16 364 PN03M HEX NUT M8-1.25 262 PSB05 CAP SCREW 1/4-20 X 3/4 366 P9742366 RUBBER FOOT 3/8-16 X 1" 263 PLW02 LOCK WASHER 1/4 367 PW03M FLAT WASHER 6MM 300 P9742300 BASE 368 PS14M PHLP HD SCR M6-1 X 12 301A P9742301A VISE BASE V2.01.08
-36-
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 39
Guides & Shafts Parts Breakdown
70
64-1
114
65
11
102
8
68
106
70
105
107
99
69
87
88
87
64
62
114
61
63
62-1
60
96
61
87
57
94
61
61
60
62
90
11
102
8
63
62-1
91
95
73
87
88
89
77
REF PART # DESCRIPTION REF PART # DESCRIPTION
8 PW07 FLAT WASHER 5/16 77 P9742077 BLADE WHEEL REAR
11 PB03 HEX BOLT 5/16-18 X 1 87 P6202 BALL BEARING 6202ZZ
57 P9742057 ADJUSTABLE BRACKET- LEFT 88 P9742088 BUSHING
60 PR01M EXT RETAINING RING 10MM 89 P9742089 OIL SEAL
61 P6000 BEARING 6000ZZ 90 P9742090 TRANSMISSION WHEEL SHAFT
62 P9742062 GUIDE PIVOT LEFT 91 P9742091 WORM GEAR
62-1 P9742062-1 GUIDE PIVOT RIGHT 94 P9742094 WORM GEAR SHAFT
63 P9742063 BEARING PIN 95 PRP20M ROLL PIN 4 X 22
64 P9742064 BLADE GUIDE REAR 96 P9742096 BEARING BUSHING
64-1 P9742064-1 BLADE GUIDE FRONT 99 P9742099 BUSHING
65 P9742065 ADJUSTABLE BRACKET RIGHT 102 PLW01 LOCK WASHER 5/16
68 PFH03 FLAT HD SCR 1/4-20 X 1/2 105 PRP39M ROLL PIN 4 X 20
69 P9742069 DEFLECTOR PLATE 106 P9742106 SHAFT BLOCK
70 PN08 HEX NUT 3/8-16 107 P9742107 BLADE WHEEL SHAFT
73 PK23M KEY 5 X 5 X 25 114 PLW04 LOCK WASHER 3/8
87
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
-37-
Page 40
Labels Parts Breakdown
378
378 -1
379
382
380
383
REF PART # DESCRIPTION REF PART # DESCRIPTION
378 P9742378 MACHINE ID LABEL 381 PLABEL-12 READ MANUAL LABEL
378-1 P9742378-1 MACHINE WARNINGS LABEL 382 PLABEL-14 ELECTRICITY LABEL
379 P9742379 SAFETY GLASSES LABEL 383 G9987 GRIZZLY LOGO PLATE
380 PLABEL-26 UNPLUG LABEL
Safety labels warn about machine hazards and ways to prevent injury. The owner of this machine MUST maintain the original location and readability of the labels on the machine. If any label is removed or becomes unreadable, REPLACE that label before using the machine again. Contact Grizzly at (800) 523-4777 or www.grizzly.com to order new labels.
381
-38-
G9742 Metal Cutting Bandsaw (Mfg. Since 11/06
Page 41
WARRANTY CARD
Name _____________________________________________________________________________
Street _____________________________________________________________________________
City _______________________ State _________________________ Zip _____________________
Phone # ____________________ Email _________________________________________________
Model # ____________________ Order # _______________________ Serial # __________________
The following information is given on a voluntary basis. It will be used for marketing purposes to help us develop better products and services. Of course, all information is strictly confidential.
1. How did you learn about us? ____ Advertisement ____ Friend ____ Catalog ____ Card Deck ____ Website ____ Other:
2. Which of the following magazines do you subscribe to?
____ Cabinetmaker & FDM ____ Family Handyman ____ Hand Loader ____ Handy ____ Home Shop Machinist ____ Journal of Light Cont. ____ Live Steam ____ Model Airplane News ____ Old House Journal ____ Popular Mechanics
3. What is your annual household income? ____ $20,000-$29,000 ____ $30,000-$39,000 ____ $40,000-$49,000 ____ $50,000-$59,000 ____ $60,000-$69,000 ____ $70,000+
CUT ALONG DOTTED LINE
4. What is your age group? ____ 20-29 ____ 30-39 ____ 40-49 ____ 50-59 ____ 60-69 ____ 70+
5. How long have you been a woodworker/metalworker? ____ 0-2 Years ____ 2-8 Years ____ 8-20 Years ____20+ Years
6. How many of your machines or tools are Grizzly? ____ 0-2 ____ 3-5 ____ 6-9 ____10+
____ Popular Science ____ Popular Woodworking ____ Precision Shooter ____ Projects in Metal ____ RC Modeler ____ Rie ____ Shop Notes ____ Shotgun News ____ Today’s Homeowner ____ Wood
____ Wooden Boat ____ Woodshop News ____ Woodsmith ____ Woodwork ____ Woodworker West ____ Woodworker’s Journal ____ Other:
7. Do you think your machine represents a good value? _____Yes _____No
8. Would you recommend Grizzly Industrial to a friend? _____ Yes _____No
9. Would you allow us to use your name as a reference for Grizzly customers in your area? Note: We never use names more than 3 times. _____ Yes _____No
10. Comments: _____________________________________________________________________
_________________________________________________________________________________
_________________________________________________________________________________
Page 42
FOLD ALONG DOTTED LINE
FOLD ALONG DOTTED LINE
Place
Stamp
Here
GRIZZLY INDUSTRIAL, INC. P.O. BOX 2069 BELLINGHAM, WA 98227-2069
Send a Grizzly Catalog to a friend:
Name_______________________________
Street_______________________________
City______________State______Zip______
TAPE ALONG EDGES--PLEASE DO NOT STAPLE
Page 43
WARRANTY AND RETURNS
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special,
WARRANTY AND RETURNS
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.
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.
Page 44
Buy Direct and Save with Grizzly®– Trusted, Proven and a Great Value!
~Since 1983~
Visit Our Website Today For Current Specials!
ORDER
24 HOURS A DAY!
1-800-523-4777
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