South Bend Tools SB1123 User manual

®
A Tradition of Excellence
South Bend Tools
MODEL SB1123
24" 7
1⁄2HP BANDSAW
OWNER'S MANUAL
© September, 2021 by South Bend Tools For Machines Mfd. Since 7/21 (V1.09.21)

Customer Service
We stand behind our machines. If you have any service questions, parts requests or general questions
about your purchase, feel free to contact us.
South Bend Tools
P.O. Box 2027
Bellingham, WA 98227
Phone: [phone]
Fax: [phone] (International)
Fax: [phone] (USA Only)
Email: [email protected]
Updates
For your convenience, any updates to this manual will be available to download free of charge
through our website at:
www.southbendtools.com
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. As with all machinery of this nature, learning the
nuances of operation is a process that happens through training and experience. If you are not an
experienced operator of this type of machinery, read through this entire manual, then learn more
from an experienced operator, schooling, or research before attempting operations. Following this
advice will help you avoid serious personal injury and get the best results from your work.
Manual Feedback
We've made every effort to be accurate when documenting this machine. However, errors sometimes
happen or the machine design changes after the documentation process—so
the manual may not
exactly match your machine.
If a difference between the manual and machine leaves you in doubt,
contact our
customer service for clarification.
We highly value customer feedback on our manuals. If you have a moment, please share your
experience using this manual. What did you like about it? Is there anything you would change to
make it better? Did it meet your expectations for clarity, professionalism, and ease-of-use?
South Bend Tools
C
/O Technical Documentation Manager
P.O. Box 2027
Bellingham, WA 98227
Email: [email protected]

Table of Contents
Ripping ...............................................................46
Crosscutting .......................................................47
Resawing ............................................................47
Cutting Curves................................................... 48
Stacked Cuts ......................................................48
Using Foot Brake ............................................... 49
Blade Lead ......................................................... 49
ACCESSORIES.............................................................. 51
MAINTENANCE ............................................................. 54
Maintenance Schedule....................................... 54
Wheel Brushes ...................................................54
Cleaning & Protecting .......................................54
Lubrication......................................................... 54
SERVICE........................................................................... 57
Tensioning/Replacing V-Belts ...........................57
Adjusting Wheel Brushes..................................59
Adjusting Quick-Release Lever.........................59
Adjusting Guide Post Parallelism.....................60
Aligning Wheels .................................................63
Calibrating Table Tilt Scale Pointer................. 66
Replacing Brake Shoe........................................ 67
TROUBLESHOOTING................................................. 68
ELECTRICAL................................................................... 72
Electrical Safety Instructions ...........................72
Wiring Diagram 220V........................................ 73
Wiring Diagram 440V........................................ 74
Electrical Component Pictures..........................75
PARTS................................................................................ 77
Main....................................................................77
Table, Tilt, Trunnion & Fence...........................80
Motor & Electrical .............................................82
Motor & Electrical Parts List............................ 83
Machine Labels ..................................................84
WARRANTY..................................................................... 85
INTRODUCTION...............................................................2
Identification ........................................................2
Description of Controls & Components ..............3
Product Specifications ......................................... 6
SAFETY................................................................................8
Understanding Risks of Machinery ....................8
Basic Machine Safety ..........................................8
Additional Bandsaw Safety...............................10
PREPARATION .............................................................. 11
Preparation Overview........................................ 11
Required for Setup............................................. 11
Power Supply Requirements.............................12
Converting Voltage to 440V ..............................14
Unpacking ..........................................................15
Inventory ............................................................15
Cleaning & Protecting .......................................16
Location ..............................................................17
Lifting & Moving................................................18
Anchoring to Floor .............................................19
Assembly ............................................................19
Installing Riser Blocks ...................................... 20
Dust Collection................................................... 21
Adjustment Overview ........................................22
Initial Blade Tracking .......................................22
Power Connection ..............................................24
Test Run .............................................................25
Tensioning Blade ...............................................27
Fine-Tune Tracking ...........................................28
Adjusting Blade Support Bearings ...................29
Adjusting Blade Guide Bearings....................... 30
Aligning Table.................................................... 32
Aligning Fence ...................................................33
Calibrating Fence Pointer .................................34
Aligning Miter Gauge ........................................35
OPERATION....................................................................36
Operation Overview........................................... 36
Workpiece Inspection......................................... 37
Setting Upper Blade Guide Height...................38
Blade Selection...................................................38
Blade Selection Chart........................................ 41
Blade Care & Break-In...................................... 42
Blade Breakage.................................................. 42
Changing Blade.................................................. 43
Tilting Table....................................................... 44

-2-
For Machines Mfd. Since 7/21
South Bend Tools
Model SB1123 INTRODUCTION
Identification
For Your Own Safety, Read Instruction Manual Before Operating Saw.
a) Wear eye protection.
b) Do not remove jammed cutoff pieces until blade has stopped.
c) Maintain proper adjustment of blade tension, blade guides, and thrust bearings.
d) Adjust upper guide to just clear workpiece.
e) Hold workpiece firmly against table.
Introduction
BladeBlade
TensionTension
HandwheelHandwheel
UpperUpper
WheelWheel
CoverCover
ControlControl
PanelPanel
BladeBlade
TrackingTracking
WindowWindow
Guide PostGuide Post
HandwheelHandwheel
MiterMiter
GaugeGauge
Table TiltTable Tilt
Lock HandleLock Handle
Lower WheelLower Wheel
AdjustmentAdjustment
HubHub
4" Dust Port4" Dust Port
(Side)(Side)
FootFoot
BrakeBrake
Quick-Quick-
ReleaseRelease
BladeBlade
TensionTension
LeverLever
MotorMotor
BladeBlade
TensionTension
IndicatorIndicator
4" Dust Port4" Dust Port
(Rear)(Rear)
Guide PostGuide Post
Lock KnobLock Knob
RipRip
FenceFence
LowerLower
WheelWheel
CoverCover
BladeBlade
GuidesGuides
GuideGuide
PostPost
Table TiltTable Tilt
HandwheelHandwheel
TrackingTracking
ControlControl
KnobKnob
w/Lockw/Lock
LeverLever
MagneticMagnetic
SwitchSwitch

South Bend Tools
For Machines Mfd. Since 7/21 Model SB1123
-3-
INTRODUCTION
Description of Controls
& Components
Refer to Figures 1–8 and the following
descriptions to become familiar with the basic
controls and components used to operate this
machine.
Control Panel
A. Master Power Key Switch: Turns incoming
power ON and OFF. Requires key.
B. ON Button: Turns motor ON when pressed.
C. OFF Button: Turns motor OFF when
pressed. Motor will not start until switch is
reset. Twist clockwise to reset.
Figure 1. Control panel.Control panel.
AA
BB
CC
To reduce the risk of
serious injury when using
this machine, read and
understand this entire
manual before beginning any
operations.
Guide Post
D. Guide Post Handwheel: Adjusts height of
guide post above workpiece, using a rack-
and-pinion system.
E. Guide Post w/Scale: Houses upper blade
guides and support bearing, and shields
operator from upper portion of blade. Adjusts
up or down as necessary to position upper
blade guides/support bearing as close as
possible to workpiece for maximum cutting
accuracy and minimum blade exposure to
operator. Scale on side of guide post indicates
height of upper blade guide above table.
F. Upper Blade Guide & Support Bearing:
Supports blade above workpiece during
operations.
G. Guide Post Lock Knob: Secures guide post
position after adjustment.
Figure 2. Guide post controls.Guide post controls.
DD
GG
EE
FF