Page 2
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.
I N T R O D U C T I O N Model SB1128 For Machines Mfd. Since 05/24 Scope of Manual This manual helps the reader understand the machine, how to prepare it for operation, how to control it during operation, and how to keep it in good working condition. We assume the reader has a basic understanding of how to operate this type of machine, but that the reader is not familiar with the controls and adjustments of this specific model.
I N T R O D U C T I O N For Machines Mfd. Since 05/24 Model SB1128 Identification Trigger Switch Trigger Switch Blade Tension Blade Tension Cutting Cutting Handwheel Handwheel Fluid Fluid w/Gauge w/Gauge Valve Valve Control Control Panel...
I N T R O D U C T I O N Model SB1128 For Machines Mfd. Since 05/24 Description of Controls G. Power Switch: Turns incoming power ON and OFF. When power switch is in ON position, & Components ON/OFF button switch will illuminate.
I N T R O D U C T I O N For Machines Mfd. Since 05/24 Model SB1128 Downfeed Controls N. Blade Tension Safety Switch: Disables machine when blade tension is too low. O. Top Blade Guide Lock Handle: Loosens to adjust blade guide position;...
Page 8
I N T R O D U C T I O N Model SB1128 For Machines Mfd. Since 05/24 Vise Table Workpiece Feeding Figure 7. Vise table components. Figure 8. Work stop. Fixed Vise Jaws: Help hold workpiece during AA. Work Stop: Adjusts for repetitive cutting cutting operations.
Page 10
I N T R O D U C T I O N Model SB1128 For Machines Mfd. Since 05/24 Main Specifications Operation Info Blade Speeds..........................55 - 255 FPM Std. Blade Length............................ 97 in. Blade Length Range......................96-7/8 - 97-5/8 in.
S A F E T Y For Machines Mfd. Since 05/24 Model SB1128 Understanding Risks of Machinery Operating all machinery and machining equipment can be dangerous or relatively safe depending on how it is installed and maintained, and the operator's experience, common sense, risk awareness, working conditions, and use of personal protective equipment (safety glasses, respirators, etc.).
Page 12
S A F E T Y Model SB1128 For Machines Mfd. Since 05/24 Entanglement: Loose clothing, gloves, neckties, Chuck Keys or Adjusting Tools: Tools used to jewelry or long hair may get caught in adjust spindles, chucks, or any moving/...
S A F E T Y For Machines Mfd. Since 05/24 Model SB1128 Additional Horizontal Metal Bandsaw Safety Serious injury or death can occur from getting fi ngers, hair, or clothing entangled in rotating or moving parts or making direct contact with the moving blade. To minimize risk of injury, anyone operating this machine MUST completely heed hazards and warnings below.
P R E P A R A T I O N Model SB1128 For Machines Mfd. Since 05/24 Preparation Overview Required for Setup The purpose of the preparation section is to help The items listed below are required to you prepare your machine for operation. The list successfully set up and prepare this machine for below outlines the basic process.
P R E P A R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Power Supply Requirements Serious injury could occur if you connect the machine to power before completing the Availability setup process. DO NOT connect to power until instructed later in this manual.
P R E P A R A T I O N Model SB1128 For Machines Mfd. Since 05/24 Grounding Requirements Improper connection of the equipment- grounding wire can result in a risk of electric This machine must be grounded! In the event of shock.
P R E P A R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Unpacking This item was carefully packaged to prevent damage during transport. If you discover any damage, please immediately call Customer Service at (360) 734-1540 for advice. You may...
P R E P A R A T I O N Model SB1128 For Machines Mfd. Since 05/24 Hardware Recognition Chart USE THIS CHART TO MATCH UP HARDWARE DURING THE INVENTORY Wing AND ASSEMBLY PROCESS. Lock " Flat Flat Head Phillips "...
P R E P A R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Cleaning & Protecting Avoid chlorine-based solvents, such as The unpainted surfaces are coated at the factory acetone or brake parts cleaner that may with a heavy-duty rust preventative that damage painted surfaces.
P R E P A R A T I O N Model SB1128 For Machines Mfd. Since 05/24 Location Weight Load Refer to the Machine Specifi cations for the Physical Environment weight of your machine. Make sure that the surface upon which the machine is placed will...
The Model SB1128 requires the use of lifting equipment such as a forklift, engine hoist, or boom crane. DO NOT attempt to lift or move the Figure 14.
Page 22
P R E P A R A T I O N Model SB1128 For Machines Mfd. Since 05/24 10. Slide work stop assembly rod into hole in vise Lower machine so hex bolt heads from Step 5 rest on floor.
P R E P A R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Initial Lubrication 12. Attach feed support bracket to stand with (2) M10-1.5 x 25 cap screws and 10mm lock washers (see Figure 20). Hand-tighten Your machine was lubricated at the factory, fasteners for now.
P R E P A R A T I O N Model SB1128 For Machines Mfd. Since 05/24 Test Run Push EMERGENCY STOP button in (see Figure 22). After all preparation steps have been completed, Turn power switch to OFF position (see the machine and its safety features must be Figure 22).
Page 25
P R E P A R A T I O N For Machines Mfd. Since 05/24 Model SB1128 10. Turn power switch to ON position. Light — If machine does not run smoothly, between ON and OFF button should disconnect machine from power and refer illuminate (see Figure 24).
Page 26
P R E P A R A T I O N Model SB1128 For Machines Mfd. Since 05/24 19. Turn blade tension handwheel clockwise until gauge indicates between 30–35 KPSI (30,000–35,000 PSI) (see Figure 27). Downfeed Downfeed Rate Rate Blade Tension...
P R E P A R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Inspections & — If headstock stops lowering before reaching vise table, or cuts into vise table, Adjustments downfeed limit bolt needs to be adjusted.
15. Adjusts downfeed rate. Regardless of the content in this section, South Bend Tools will not be held liable for 16. Completes cut. accidents caused by lack of training. 17. Turn machine OFF, allows blade to come to complete stop, then removes workpiece.
O P E R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Operation Tips Workpiece Inspection Before cutting, inspect the material for any of The following tips will help you safely and the following conditions and take necessary effectively operate your bandsaw, and help you get the maximum life out of your saw blades.
Measured from the back of the blade to the tip of the blade tooth (the widest point). Model Blade Width SB1128 ........... 1" Tooth Type The most common tooth types are described as follows, and illustrated in Figure 31. Figure 30. Bandsaw blade terminology.
O P E R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Blade Breakage Blade Pitch (TPI) The chart below is a basic starting point for Many conditions may cause a bandsaw blade to choosing teeth per inch (TPI) for variable pitch break.
O P E R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Blade Speed Chart The chart in Figure 34 offers blade speed guidelines for various metals, given in feet per minute (FPM) and meters per minute (M/Min). Choose the closest available speed on the machine, then adjust the downfeed rate as necessary, using the appearance of the chips produced as a guide.
O P E R A T I O N Model SB1128 For Machines Mfd. Since 05/24 Setting Changing Blade Downfeed Rate The speed at which the saw blade will cut through All saw blades are dangerous and may cause the workpiece is determined by blade type, laceration injuries.
Page 35
O P E R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Remove blade cover by removing (4) knobs and flat washers shown in Figure 38. Blade Brush Blade Brush Blade Blade Assembly Assembly Cover Cover Figure 40.
Page 36
O P E R A T I O N Model SB1128 For Machines Mfd. Since 05/24 11. Remove blade from bottom blade wheel and 14. Apply a light amount of tension to hold bottom guide, then remove blade from top blade in place.
Cover wheels, 2) the blade frequently breaks, and 3) the bandsaw does not make straight cuts. The Model SB1128 is equipped with a blade tension safety switch that will disable the Figure 46. Location of blade cover and knobs. machine when the blade tension is set too low.
O P E R A T I O N Model SB1128 For Machines Mfd. Since 05/24 Adjusting Adjust blade tension handwheel clockwise to tighten blade or counterclockwise to loosen Blade Guides blade (see Figure 48). — Adjust blade tension handwheel until...
Open (2) cutting fluid valves (see Figure 52). Controls Cutting Fluid Valves Cutting Fluid Valves The Model SB1128 has two operation modes: automatic and manual. Manual mode gives the operator more downfeed control while automatic mode will complete the cut without much user intervention.
Page 40
O P E R A T I O N Model SB1128 For Machines Mfd. Since 05/24 With one hand on headstock handle (see When cut is completed and headstock Figure 54) to keep headstock from falling, contacts downfeed limit switch, limit switch turn downfeed rate dial and downfeed ON/ will stop blade.
O P E R A T I O N For Machines Mfd. Since 05/24 Model SB1128 10. When blade reaches desired speed, turn Open (2) cutting fluid valves (see Figure 57). downfeed ON/OFF dial to ON position. Headstock will lower blade into workpiece...
Page 42
O P E R A T I O N Model SB1128 For Machines Mfd. Since 05/24 Cutting to the Right DISCONNECT MACHINE FROM POWER! Angle Scale Angle Scale Indicator Indicator Raise headstock so blade is above vise table, then turn downfeed ON/OFF dial (see Figure 60) all the way clockwise to keep headstock from lowering.
Page 43
O P E R A T I O N For Machines Mfd. Since 05/24 Model SB1128 Pull angle lock forward (see Figure 64) to Loosen vise position lock handle (see Figure allow headstock angle adjustment. 66) and slide movable vise jaw right on track until it stops (see Figure 67).
Place workpiece against fixed vise jaws, then use vise handwheel to tighten movable vise jaw until it contacts workpiece (see The Model SB1128 vise has a handwheel to Figure 70). secure a workpiece in the jaws before clamping it tightly with the positive lock. The positive...
Adjusting Work Stop Using Cutting Fluid System The Model SB1128 is equipped with a work stop that can be used to quickly position a workpiece during repetitive cutting operations. This work Cutting fluid is a mixture of cutting fluid and stop can only be installed when cutting to the water.
Page 46
O P E R A T I O N Model SB1128 For Machines Mfd. Since 05/24 You can also install the drip tray on the cabinet edges (see Figure 73) to catch cutting fluid when an operation creates runoff. FIRE HAZARD!
A C C E S S O R I E S For Machines Mfd. Since 05/24 Model SB1128 Accessories SB1365—South Bend Way Oil Engineered for the high pressure exerted on horizontal or vertical ways and slides. Protects This section includes the most common against rust and corrosion.
M A I N T E N A N C E Model SB1128 For Machines Mfd. Since 05/24 Maintenance Schedule Cleaning Use a brush and shop vacuum to remove chips and other debris from the working surfaces. Periodically remove the blade and thoroughly...
Page 49
M A I N T E N A N C E For Machines Mfd. Since 05/24 Model SB1128 Vise Jaws, Table, & Slides Blade Tension Leadscrew & Slides Lubrication Type .. SB1365 or ISO 68 Equivalent Lubrication Type .. SB1365 or ISO 68 Equivalent Amount.........
M A I N T E N A N C E Model SB1128 For Machines Mfd. Since 05/24 Machine Storage Remove old cutting fluid, then add a few drops of way oil and clean lines with compressed air. All machinery will develop serious rust problems...
M A I N T E N A N C E For Machines Mfd. Since 05/24 Model SB1128 Cutting Fluid System Maintenance BIOLOGICAL & POISON HAZARD! correct personal The cutting fluid system consists of a reservoir, protective equipment when pump, and hoses with valves. The pump pulls handling cutting fluid.
M A I N T E N A N C E Model SB1128 For Machines Mfd. Since 05/24 Changing Cutting Fluid Cutting Fluid Cutting Fluid Chip Screen Chip Screen Items Needed Pump Pump Safety Wear ....See Hazards on Page 46 Wrench or Socket 21mm .......1...
Travel Limits it click against column, then tighten hex nuts to secure position. The Model SB1128 is equipped with a limit switch that stops the blade motor when a cut is finished, a downfeed stop bolt that stops the Limit Switch...
Page 54
S E R V I C E Model SB1128 For Machines Mfd. Since 05/24 Loosen (2) hex nuts shown in Figure 86 on Slide downfeed limit switch toward control Page 51. panel until you hear it click against column, then tighten hex nuts to secure position.
Tension Safety Switch — If blade tension safety switch is not engaged when blade is tensioned to The Model SB1128 features a blade tension at least 20,000 PSI, no adjustment is safety switch to prevent the machine from required. Proceed to Step 6.
S E R V I C E Model SB1128 For Machines Mfd. Since 05/24 Squaring Blade to Without tensioning blade, try to start blade. Blade should not start and signal light (see Table Figure 92) should flash 5 times to indicate blade tension is too low to engage blade tension limit switch.
Page 57
S E R V I C E For Machines Mfd. Since 05/24 Model SB1128 — If blade is square to vise table, no — For top blade guide, if top of blade tilts adjustment is required. away from square, loosen top (2) set screws shown in Figure 96 and tighten —...
S E R V I C E Model SB1128 For Machines Mfd. Since 05/24 Adjusting Blade Remove (2) button head cap screws and bottom blade guard shown in Figure 98. Guides & Bearings On bottom blade guide, loosen (2) button...
Page 59
S E R V I C E For Machines Mfd. Since 05/24 Model SB1128 Loosen (2) cap screws shown in Figure 100 Loosen (2) button head cap screws shown in and adjust blade guide assembly up or down Figure 102, adjust blade guide assembly up...
Page 60
S E R V I C E Model SB1128 For Machines Mfd. Since 05/24 14. Repeat Steps 11–13 on bottom blade guide. Tighten set screw to secure roller bearing position. 15. Tighten button head cap screws loosened in Step 10.
S E R V I C E For Machines Mfd. Since 05/24 Model SB1128 Replacing Brush Cap Brush Cap Motor Brushes (1 of 2) (1 of 2) This bandsaw is equipped with a universal motor that uses two carbon brushes to transmit electrical current inside the motor.
S E R V I C E Model SB1128 For Machines Mfd. Since 05/24 Adjusting Downfeed Adjusting Angle Stops Pressure The swivel base is equipped with two angle stops to provide quick adjustments to 60° to the right and 45° to the left. If cuts made using these stops...
Adjusting Blade Brush Adjust headstock as far to the left as it will The Model SB1128 has a blade brush to help keep — If scale displays 45°, 45° stop does not metal chips off the blade wheels. It will wear over require adjustment.
TROU B LESHOOTI NG Model SB1128 For Machines Mfd. Since 05/24 If you need replacement parts, or if you are unsure how to do any of the solutions given here, feel free to call us at (360) 734-1540. Symptom Possible Cause Possible Solution 1.
Page 65
TROU B LESHOOTI NG For Machines Mfd. Since 05/24 Model SB1128 Symptom Possible Cause Possible Solution 1. Dull blade. 1. Replace blade (Page 32). Machine stalls or is underpowered 2. Wrong workpiece material (metal). 2. Use correct size/type of metal.
Page 66
TROU B LESHOOTI NG Model SB1128 For Machines Mfd. Since 05/24 Symptom Possible Cause Possible Solution 1. Downfeed ON/OFF dial in OFF 1. Turn downfeed ON/OFF dial counterclockwise to Headstock will not lower. position. ON position (Page 32). 2. Downfeed rate dial is all the way 2.
Page 67
TROU B LESHOOTI NG For Machines Mfd. Since 05/24 Model SB1128 Symptom Possible Cause Possible Solution 1. Downfeed rate too fast; blade speed 1. Reduce downfeed rate (Page 32); adjust blade Cuts are crooked/ excessively rough. incorrect. speed (Page 30).
E L E C T R I C A L Model SB1128 For Machines Mfd. Since 05/24 Electrical Safety Instructions These pages are accurate at the time of printing. In the constant effort to improve, however, we may make changes to the electrical systems of future machines. Study this section carefully. If you see differences between your machine and what is shown in this section, call Technical Support at (360) 734-1540 for assistance BEFORE making any changes to the wiring on your machine.
E L E C T R I C A L For Machines Mfd. Since 05/24 Model SB1128 Electrical Overview Blade Tension Safety Switch (Page 72) Main Motor (Page 71) Trigger Switch (Page 72) Downfeed Limit Switch (Page 72) Control Box & Panel (Pages 68–69)
E L E C T R I C A L Model SB1128 For Machines Mfd. Since 05/24 Control Box Wiring Diagram Circuit Breaker Switch Control Box Coolant Fan KUOYUH (To Control 88 Series 6A STRIKEFAN SA92255S2HT Panel) LINE LOAD Pg. 69...
E L E C T R I C A L For Machines Mfd. Since 05/24 Model SB1128 Control Panel Wiring Diagram Control Panel (To Control Box) Pg. 68 Cutting Fluid Manual/Auto Switch Pump Switch NHD NSS22S210 NHD NSS22S210 DRO Circuit Board...
Page 72
E L E C T R I C A L Model SB1128 For Machines Mfd. Since 05/24 Control Box Figure 112. Control box wiring. South Bend Tools -70-...
E L E C T R I C A L For Machines Mfd. Since 05/24 Model SB1128 Motor Wiring Diagrams Main Motor 220V Circuit Board JM01-03 (To Control Box) Pg. 68 Figure 113. Main motor wiring. Ground R Capacitor CBB61 3uF 450VAC Figure 114.
E L E C T R I C A L Model SB1128 For Machines Mfd. Since 05/24 Other Component Wiring Diagrams Downfeed Limit Switch CANLIE AZD-1122 (To Control Box) Pg. 68 Figure 115. Downfeed limit switch wiring. (To Control Box) Pg.
P A R T S Model SB1128 For Machines Mfd. Since 05/24 Headstock Parts List REF PART # DESCRIPTION PART # DESCRIPTION PSB1128001 BODY FRAME PSB1128061 HEX NUT M4-.7 PSB1128002 ANCHOR BRACKET PSB1128063 CAP SCREW M6-1 X 30 PSB1128003 MOUNT SHAFT PSB1128064 CAP SCREW M10-1.5 X 25...
Page 77
P A R T S For Machines Mfd. Since 05/24 Model SB1128 Headstock Parts List (Cont.) PART # DESCRIPTION PART # DESCRIPTION PSB1128141 FLAT WASHER 5MM PSB1128301 CAP SCREW M10-1.5 X 110 PSB1128142 CAP SCREW M5-.8 X 10 PSB1128321 ADJUSTMENT BRACKET PSB1128202 SPRING CLAMP BOLT M10-1.5 X 30...
P A R T S For Machines Mfd. Since 05/24 Model SB1128 Base Parts List PART # DESCRIPTION PART # DESCRIPTION PSB1128062 FLAT WASHER 15 X 22 X 2.2MM PSB1128193 CAP SCREW M6-1 X 110 PSB1128066 BEARING DUST COVER PSB1128194...
P A R T S Model SB1128 For Machines Mfd. Since 05/24 Control Box REF PART # DESCRIPTION REF PART # DESCRIPTION PSB1128400 CONTROL BOX ASSEMBLY PSB1128421 DRO CIRCUIT BOARD RFIDIS-01 PSB1128401 CIRCUIT BOARD MOUNT PSB1128422 FLAT HD SCR M4-.7 X 8...
P A R T S For Machines Mfd. Since 05/24 Model SB1128 Machine Labels (Front) WARNING! WARNING! WARNING! EYE/LUNG INJURY INJURY/SHOCK INJURY HAZARD HAZARD Do not use machine HAZARD Always wear ANSI- if you have not read To avoid shock or approved safety the manual.
The owner of this machine MUST maintain the original location and readability of these safety labels. If any label is removed or becomes unreadable, REPLACE that label before using the machine again. Contact South Bend Tools at (360) 734-1540 or www.southbendtools.com to order new labels.
Warranty This quality product is warranted by South Bend Tools to the original buyer for 2 years from the date of purchase. This warranty does not apply to consumable parts, or defects due to any kind of misuse, abuse, negligence, accidents, repairs, alterations or lack of maintenance. We do not reimburse for third party repairs.
Page 84
southbendtools.com Printed In Taiwan #CS23197...
Need help?
Do you have a question about the SB1128 and is the answer not in the manual?
Questions and answers