Southbend SB1020 User's Manual

Southbend SB1020 User's Manual
9" x 12" Horizontal Variable Speed
Metal-cutting Bandsaw
with Sliding ViSe
MODEL SB1020
OWNER'S MANUAL
Hundreds of Thousands of Lathes Sold With a Tradition of Q uality Since 1906!
Copyright © May, 2010
For Machines Mfg. Since 8/09
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 Lathe, Inc.
C
/O Technical Documentation Manager
P.O. Box 2027
Bellingham, WA 98227
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.southbendlathe.com
Customer Service
We stand behind our machines. If you have any service questions, parts requests or general questions
about the machine, feel free to contact us.
South Bend Lathe Co.
P.O. Box 2027
Bellingham, WA 98227
Phone: (360) 734-1540
Parts Department: (417) 886-2954
Fax: (360) 676-1075 (International)
Fax: (360) 734-1639 (USA Only)
Email: [email protected]
Table of Contents
INTRODUCTION................................................................2
About This Machine.............................................. 2
Capabilities.......................................................... 2
Features. ............................................................. 2
Identification......................................................... 3
Machine Specifications......................................... 4
SAFETY.................................................................................6
Understanding Risks of Machinery..................... 6
Basic Machine Safety........................................... 6
Additional Metal Bandsaw Safety....................... 8
PREPARATION..................................................................9
Preparation Overview........................................... 9
Things You'll Need................................................ 9
Power Supply Requirements................................ 9
Availability.......................................................... 9
Full-Load Current Rating..................................... 9
Circuit Information............................................ 10
Circuit Requirements for 110V. .......................... 10
Circuit Requirements for 220V. .......................... 10
Grounding Requirements. .................................. 10
Extension Cords................................................. 11
Unpacking........................................................... 11
Inventory............................................................. 11
Cleaning & Protecting........................................ 12
Location............................................................... 13
Physical Environment........................................ 13
Electrical Installation......................................... 13
Lighting............................................................. 13
Weight Load....................................................... 13
Space Allocation................................................. 13
Lifting & Moving................................................. 14
Leveling & Mounting.......................................... 14
Leveling............................................................. 14
Bolting to Concrete Floors. ................................. 15
Machine Mounts. ............................................... 15
Power Connection............................................... 16
Machine Setup.................................................... 16
Test Run.............................................................. 17
Inspections & Adjustments................................ 17
OPERATION..................................................................... 18
Operation Overview............................................ 18
Description of Controls & Components............. 19
Blade Selection.................................................... 20
Blade Terminology. ............................................ 20
Blade Length. .................................................... 20
Blade Width....................................................... 20
Tooth Set. .......................................................... 21
Tooth Type......................................................... 21
Blade Pitch (TPI)................................................ 22
Blade Changes.................................................... 23
Blade Tension...................................................... 24
Blade Breakage................................................... 24
Blade Care & Break-In....................................... 25
Blade Care......................................................... 25
Blade Break-In................................................... 25
Downfeed Rate.................................................... 25
Downfeed Pressure............................................. 25
Blade Speed Chart.............................................. 26
Chip Inspection Chart........................................ 26
Angle Cuts........................................................... 27
Cuts to the Right................................................ 27
Cuts to the Left.................................................. 27
Work Stop............................................................ 27
Blade Guide......................................................... 28
Vise Quick Release............................................. 28
Workpiece Holding.............................................. 28
Cutting Fluid....................................................... 29
Cutting Fluid System......................................... 29
Operation Tips.................................................... 30
ACCESSORIES............................................................... 31
Accessories.......................................................... 31
MAINTENANCE.............................................................. 32
Maintenance Schedule........................................ 32
Cleaning.............................................................. 32
Lubrication.......................................................... 32
Gearbox. ............................................................ 33
Machine Storage................................................. 33
TROUBLESHOOTING.................................................. 34
SERVICE........................................................................... 37
Blade Brush........................................................ 37
Angle Stops......................................................... 37
Limit Switches.................................................... 38
Downfeed Stop Bolt............................................ 39
Squaring Blade................................................... 40
ELECTRICAL.................................................................... 42
Electrical Safety Instructions............................ 42
220V Conversion................................................. 43
Electrical Box Wiring Diagram.......................... 44
Components Wiring Diagram............................ 45
Wiring Component Locations............................. 46
PARTS................................................................................ 47
Cabinet & Base................................................... 47
Head.................................................................... 49
Machine Labels................................................... 52
WARRANTY & RETURNS........................................... 53
Model SB1020
I N T R O D U C TI O N
For Machines Mfg. Since 8/09
INTRODUCTION
About This Machine
Capabilities
Features
This metal cutting bandsaw uses a gravity-fed
blade to make straight cuts through workpieces
that are clamped in a vise. Since the workpiece is
secured and remains stationary while the blade
lowers automatically, accuracy and operator
safety are maximized.
In addition to its capabilities, the Model SB1020
has several features to increase versatility and
efficiency.
The vise on the Model SB1020 is capable of
holding rectangular stock up to 9" x 12" and
round stock up to 10".
After a cut is complete, the OFF switch is
triggered and the motor automatically turns off.
The headstock can be rotated to make angled
cuts from -45°–60° while variable blade speeds
ensure that the proper cutting speed is available
for a variety of workpiece sizes and materials.
Both the downfeed rate and pressure are
adjustable for fine-tuning each cutting operation
and an adjustable auto-OFF power switch
maximizes safety and minimizes energy use by
turning the machine off at the end of every cut.
A flood coolant system, comprised of a coolant
tank and pump in the machine base and an
adjustable nozzle at the blade provide adequate
coolant for optimum cutting efficiency and blade
life.
A storage compartment in the cabinet base
provides a convenient location for keeping spare
blades or other accessories and the transport
handle makes moving the machine easy.
-2-
I N T R O D U C TI O N
For Machines Mfg. Since 8/09
Model SB1020
Identification
Blade Tension
Knob
Control Panel
Downfeed
Controls
Blade
Downfeed
Ram
Coolant
Valve
Blade
Cover
Headstock
Headstock
Motor
Vise
Vise Slide
Lock
Vise
Handwheel
Swivel Lock
Handle
Vise Quick
Release
Front View
Work Stop
Cabinet Access
Door
Rear View
Figure 1. Identification.
Serious personal injury could occur if
you connect the machine to power before
completing the setup process. DO NOT
connect power until instructed to do so later
in this manual.
Untrained users have an increased risk
of seriously injuring themselves with this
machine. Do not operate this machine until
you have understood this entire manual and
received proper training.
-3-
I N T R O D U C TI O N
Model SB1020
For Machines Mfg. Since 8/09
Machine Specifications
P.O. Box 2027, Bellingham, WA 98227 U.S.A.
Machine Specifications
PHONE: (360) 734-1540 • © South Bend Lathe Co.
www.southbendlathe.com
Model SB1020
9" x 12" Horizontal Bandsaw
Product Dimensions:
Weight ..........................................................................................................................................................................718 lbs.
Length/Width/Height ............................................................................................................................. 551⁄8" x 271⁄2" x 605⁄8"
Foot Print (Length/Width) ................................................................................................................................... 271⁄2" x 605⁄8"
Space Required for Full Range of Movement (Length/Width/Height) .......................................................... 65" x 47" x 75"
Shipping Dimensions:
Type ................................................................................................................................................................ Wood Slat Crate
Weight ...........................................................................................................................................................................838 lbs.
Length/Width/Height ....................................................................................................................................... 59" x 32" x 68"
Electrical:
Required Power Source .................................................................................................. 110V or 220V, Single-Phase, 60 Hz
Switch .................................................................................................................................................. Safety ON/OFF Switch
Switch Voltage .................................................................................................................................................................. 110V
Cord Length ................................................................................................................................................................... 111⁄2 ft.
Cord Gauge .................................................................................................................................................................14 gauge
Full Load Amp Draw ........................................................................................................ 18 Amps @ 110V, 9 Amps @ 220V
Minimum Circuit Size .................................................................................................... 20 Amps @ 110V, 15 Amps @ 220V
Plug Included .......................................................................................................................................................................Yes
Included Plug Type.................................................................................................................................NEMA 5-15 for 110V
Recommended Plug Type for 220V....................................................................................................................... NEMA 6-15
Motors:
Main
Type ........................................................................................................................................................................TEFC
Horsepower........................................................................................................................................................... 11⁄2 HP
Voltage ............................................................................................................................................................110V/220V
Phase .................................................................................................................................................................. 3-Phase
Amps ......................................................................................................................................................................... 5.1A
Speed............................................................................................................................................................... 1725 RPM
Cycle ....................................................................................................................................................................... 60 Hz
Number Of Speeds .........................................................................................................................................................1
Pre-Wired ................................................................................................................................................................ 110V
Power Transfer................................................................................................................................ Sealed Worm Gear
Bearings................................................................................................................... Shielded and Permanently Sealed
Coolant Pump
Type ...................................................................................................................................................Sealed/Waterproof
Horsepower............................................................................................................................................................. 1⁄8 HP
Voltage ............................................................................................................................................................110V/220V
Phase .......................................................................................................................................................... Single-Phase
Amps ................................................................................................................................................................. 0.9/0.45A
Speed............................................................................................................................................................... 3450 RPM
Cycle ....................................................................................................................................................................... 60 Hz
Number Of Speeds .........................................................................................................................................................1
Pre-Wired ................................................................................................................................................................ 110V
Model SB1020
Page 1 of 2
-4-
For Machines Mfg. Since 8/09
I N T R O D U C TI O N
Model SB1020
Main Specifications:
Operation Information
Head Swivel........................................................................................................................................ -45 deg to 60 deg.
Blade Speeds (Electrical Variable Speed) ................................................................................................ 92–360 FPM
Std. Blade Length ................................................................................................................................................. 108 1081⁄4"
Blade Size Range ..................................................................................................................................................1–1 1-11⁄16"
Cutting Capacities
Angle Cuts ................................................................................................................................................. -45 to 60 deg.
Vise Jaw Depth ....................................................................................................................................................... 125⁄8"
Vise Jaw Height ........................................................................................................................................................ 51⁄2"
Max. Capacity Rect. Height At 90D ........................................................................................................................... 9"
Max. Capacity Rect. Width At 90D .......................................................................................................................... 12"
Max. Capacity Rnd. At 90D ...................................................................................................................................... 10"
Max. Capacity Rect. Height At -45D ....................................................................................................................... 43⁄4"
Max. Capacity Rect. Width At -45D ........................................................................................................................... 7"
Max. Capacity Rnd. At -45D .................................................................................................................................... 63⁄4"
Max. Capacity Rect. Height At 45D ........................................................................................................................ 43⁄4"
Max. Capacity Rect. Width At 45D ............................................................................................................................ 7"
Max. Capacity Rnd. At 45D ..................................................................................................................................... 77⁄8"
Max. Capacity Rect. Height At 60D ........................................................................................................................ 41⁄2"
Max. Capacity Rect. Width At 60D ......................................................................................................................... 61⁄8"
Max. Capacity Rnd. At 60D ..................................................................................................................................... 41⁄2"
Construction
Wheel Construction Upper .............................................................................................................................. Cast Iron
Wheel Construction Lower .............................................................................................................................. Cast Iron
Body Construction ........................................................................................................................................... Cast Iron
Base Construction ............................................................................................................................................ Cast Iron
Stand Construction ................................................................................................................................................. Steel
Other
Wheel Size ................................................................................................................................................................125⁄8"
Blade Guides Upper ...................................................................................................................................................Yes
Blade Guides Lower ...................................................................................................................................................Yes
Coolant Capacity ..................................................................................................................................................21⁄2 Gal
Table Info
Floor to Cutting Area Height ..................................................................................................................................355⁄8"
Other Specifications:
ISO Factory ................................................................................................................................................................ ISO 9001
Country Of Origin ........................................................................................................................................................ Taiwan
Warranty .........................................................................................................................................................................1 Year
Serial Number Location .................................................................................................................. ID Label on Body Frame
Customer Setup and Cleaning Time .................................................................................................. Approximately 1 Hour
Sound Rating (No Load) ...................................................................................................................................................80 db
Features:
Heavy-duty one-piece steel stand
Adjustable hydraulic down feed
Swivel mast with angle stops
Built-in coolant system
Storage cabinet
Dual position quick release vise with work stop
Double ball bearings on each side of blade
Quick change variable speed blade control
Model SB1020
Page 2 of 2
-5-
Model SB1020
SAFETY
For Machines Mfg. Since 8/09
SAFETY
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.).
The owner of this machinery or equipment is ultimately responsible for its safe use. This
responsibility includes proper installation in a safe environment, personnel training and usage
authorization, regular inspection and maintenance, manual availability and comprehension,
application of safety devices, integrity of cutting tools or accessories, and the usage of approved
personal protective equipment by all operators and bystanders.
The manufacturer of this machinery or equipment will not be held liable for injury or property
damage from negligence, improper training, machine modifications, or misuse. Failure to read,
understand, and follow the manual and safety labels may result in serious personal injury, including
amputation, broken bones, electrocution, or death.
The signals used in this manual to identify hazard levels are defined as follows:
Death or catastrophic
harm WILL occur.
Moderate injury or fire
MAY occur.
Death or catastrophic
harm COULD occur.
Machine or property
damage may occur.
Basic Machine Safety
1.
Owner’s Manual: All machinery and
machining equipment presents serious
injury hazards to untrained users. To
reduce the risk of injury, anyone who uses
THIS item MUST read and understand
this entire manual before starting.
2.
Personal Protective Equipment: Operating
or servicing this item may expose the user
to flying debris, dust, smoke, dangerous
chemicals, or loud noises. These hazards
can result in eye injury, blindness, longterm respiratory damage, poisoning,
cancer, reproductive harm or hearing loss.
Reduce your risks from these hazards
by wearing approved eye protection,
respirator, gloves, or hearing protection.
-6-
3.
Trained/Supervised Operators Only:
Untrained users can seriously injure
themselves or bystanders. Only allow
trained and properly supervised personnel
to operate this item. Make sure safe
operation instructions are clearly
understood. If electrically powered, use
padlocks and master switches, and remove
start switch keys to prevent unauthorized
use or accidental starting.
4.
Guards/Covers: Accidental contact with
moving parts during operation may cause
severe entanglement, impact, cutting,
or crushing injuries. Reduce this risk by
keeping any included guards/covers/doors
installed, fully functional, and positioned
for maximum protection.
For Machines Mfg. Since 8/09
SAFETY
Model SB1020
5.
Entanglement: Loose clothing, gloves,
neckties, jewelry or long hair may
get caught in moving parts, causing
entanglement, amputation, crushing,
or strangulation. Reduce this risk by
removing/securing these items so they
cannot contact moving parts.
11. Chuck Keys or Adjusting Tools: Tools used
to adjust spindles, chucks, or any moving/
rotating parts will become dangerous
projectiles if left in place when the machine
is started. Reduce this risk by developing
the habit of always removing these tools
immediately after using them.
6.
Mental Alertness: Operating this item
with reduced mental alertness increases
the risk of accidental injury. Do not let a
temporary influence or distraction lead to a
permanent disability! Never operate when
under the influence of drugs/alcohol, when
tired, or otherwise distracted.
12. Work Area: Clutter and dark shadows
increase the risks of accidental injury.
Only operate this item in a clean, nonglaring, and well-lighted work area.
7.
Safe Environment: Operating electrically
powered equipment in a wet environment
may result in electrocution; operating near
highly flammable materials may result in a
fire or explosion. Only operate this item in
a dry location that is free from flammable
materials.
8.
Electrical Connection: With electically
powered equipment, improper connections
to the power source may result in
electrocution or fire. Always adhere to all
electrical requirements and applicable
codes when connecting to the power source.
Have all work inspected by a qualified
electrician to minimize risk.
9.
Disconnect Power: Adjusting or servicing
electrically powered equipment while it
is connected to the power source greatly
increases the risk of injury from accidental
startup. Always disconnect power
BEFORE any service or adjustments,
including changing blades or other tooling.
10. Secure Workpiece/Tooling: Loose
workpieces, cutting tools, or rotating
spindles can become dangerous projectiles
if not secured or if they hit another object
during operation. Reduce the risk of this
hazard by verifying that all fastening
devices are properly secured and items
attached to spindles have enough clearance
to safely rotate.
13. Properly Functioning Equipment: Poorly
maintained, damaged, or malfunctioning
equipment has higher risks of causing
serious personal injury compared to
those that are properly maintained.
To reduce this risk, always maintain
this item to the highest standards and
promptly repair/service a damaged or
malfunctioning component. Always follow
the maintenance instructions included in
this documentation.
14. Unattended Operation: Electrically
powered equipment that is left unattended
while running cannot be controlled and is
dangerous to bystanders. Always turn the
power OFF before walking away.
15. Health Hazards: Certain cutting fluids
and lubricants, or dust/smoke created
when cutting, may contain chemicals
known to the State of California to cause
cancer, respiratory problems, birth defects,
or other reproductive harm. Minimize
exposure to these chemicals by wearing
approved personal protective equipment
and operating in a well ventilated area.
16. Difficult Operations: Attempting
difficult operations with which you are
unfamiliar increases the risk of injury.
If you experience difficulties performing
the intended operation, STOP! Seek an
alternative method to accomplish the
same task, ask a qualified expert how the
operation should be performed, or contact
our Technical Support for assistance.
-7-
Model SB1020
SAFETY
For Machines Mfg. Since 8/09
Additional Metal Bandsaw Safety
1. Blade Condition. A dull or damaged
blade can break apart during operation,
increasing the risk of operator injury. Do
not operate with a dull, cracked or badly
worn blade. Inspect the blade for cracks or
missing teeth before each use.
2. Hand Placement. Hands could be cut
by the blade or crushed when lowering
the headstock. Never position fingers or
thumbs in line with the cut or under the
headstock while it is moving.
3. Blade Guard. Hands and fingers can easily
be cut by the bandsaw blade. To reduce the
risk of laceration injuries, do not operate
this bandsaw without the blade guard in
place.
4. Starting Position. To reduce the
likelihood of blade breakage and possible
entanglement, never turn the saw ON
with the blade resting on the workpiece.
5. Blade Replacement. The blade can only
make a safe and efficient cut if the teeth
are facing the workpiece. When replacing
blades, make sure the teeth face toward
the workpiece. Wear gloves to protect
hands and safety glasses to protect eyes.
-8-
6. Workpiece Handling. A shifting workpiece
can result in impact or laceration injuries.
To reduce the risk of injury, always securely
clamp the workpiece in the vise and use
additional support fixtures if needed. Never
hold the workpiece with your hands during
a cut. Flag long pieces to reduce the risk of
tripping over them.
7. Power Interruption. Unplug the machine
and turn the power switch OFF after a
power interruption. If left plugged in and
turned ON, this machine will start up when
power is restored, resulting in possible
entanglement, laceration, or amputation
hazards.
8. Hot Surfaces/Sharp Edges. Due to the
cutting process, a freshly cut workpiece,
chips, and some machine components can be
hot enough to burn you and sharp enough to
cut you. Allow components to cool and use
safe handling methods to reduce the risk of
these injuries.
9. Moving Blade. A moving bandsaw blade
presents a serious risk for laceration or
amputation injuries. Always allow the blade
to come to a complete stop before mounting
or repositioning a workpiece in the vise.
Never touch a moving blade.
For Machines Mfg. Since 8/09
P R E P A R A TI O N
Model SB1020
PREPARATION
Preparation Overview Power Supply
The purpose of the preparation section is to help
Requirements
you prepare your machine for operation. The
list below outlines the basic process to follow
to prepare your machine for operation. Specific
steps for each of these points will be covered in
detail later in this section.
The typical preparation process is as follows:
1. Unpack the machine and inventory the
contents of the carton.
2. Clean the machine and its components.
3. Make any necessary adjustments or
inspections to ensure the machine is ready
for operation.
4. Connect the machine to the power source.
5. Test run the machine to make sure it
functions properly and is ready for operation.
Things You'll Need
The items listed below are required to
successfully set up and prepare this machine for
operation.
For Lifting
•
•
A forklift or other power lifting device rated
for the weight of the machine.
Lifting Straps or Chains (rated for at least
1000 lbs. each)
For Machine Setup
•
•
Wrench 12mm
Wrench 14mm
For Power Connection
•
•
A power source that meets the minimum
circuit requirements for this machine. (Refer
to the Power Supply Requirements
section for details.)
A qualified electrician to ensure a safe and
code-compliant connection to the power
source.
Availability
Before installing the machine, consider the
availability and proximity of the required power
supply circuit. If an existing circuit does not meet
the requirements for this machine, a new circuit
must be installed.
To minimize the risk of electrocution, fire,
or equipment damage, installation work and
electrical wiring must be done by a qualified
electrician in accordance with all applicable
codes and standards.
Electrocution or fire may
occur if machine is not
correctly grounded and
attached to the power
supply. Use a qualified
electrician to ensure a safe
power connection.
Full-Load Current Rating
The full-load current rating is the amperage
a machine draws at 100% of the rated output
power. On machines with multiple motors, this is
the amperage drawn by the largest motor or sum
of all motors and electrical devices that might
operate at one time during normal operations.
Full-Load Rating at 110V.................... 18 Amps
Full-Load Rating at 220V...................... 9 Amps
The full-load current is not the maximum
amount of amps that the machine will draw. If
the machine is overloaded, it will draw additional
amps beyond the full-load rating.
If the machine is overloaded for a sufficient
length of time, damage, overheating, or fire may
result—especially if connected to an undersized
circuit. To reduce the risk of these hazards,
avoid overloading the machine during operation
and make sure it is connected to a power supply
circuit that meets the requirements in the
following section.
-9-
Model SB1020
P R E P A R A TI O N
For Machines Mfg. Since 8/09
Circuit Information
Grounding Requirements
A power supply circuit includes all electrical
equipment between the main breaker box or fuse
panel in your building and the incoming power
connections inside the machine. This circuit must
be safely sized to handle the full-load current
that may be drawn from the machine for an
extended period of time.
In the event of certain types of malfunctions or
breakdowns, grounding provides a path of least
resistance for electric current—in order to reduce
the risk of electric shock.
For your own safety and protection of property,
consult a qualified electrician if you are unsure
about wiring practices or electrical codes in
your area.
Note: The circuit requirements listed in this
manual apply to a dedicated circuit—where only
one machine will be running at a time. If this
machine will be connected to a shared circuit
where multiple machines will be running at
the same time, consult a qualified electrician to
ensure that the circuit is properly sized for safe
operation.
For 110V Connection (Prewired)
This machine is equipped with a power cord
that has an equipment-grounding wire and a
grounding plug (similar to the figure below).
The plug must only be inserted into a matching
receptacle (outlet) that is properly installed and
grounded in accordance with all local codes and
ordinances.
GROUNDED
5-15 RECEPTACLE
Grounding Prong
5-15 PLUG
Current Carrying Prongs
Circuit Requirements for 110V
This machine is prewired to operate on a 110V
power supply circuit that has a verified ground
and meets the following requirements:
Nominal Voltage................................ 110V/120V
Cycle..............................................................60 Hz
Phase...............................................Single-Phase
Circuit Rating....................................... 20 Amps
Plug/Receptacle (included)............NEMA 5-15
Circuit Requirements for 220V
This machine can be converted to operate on
a 220V power supply. To do this, follow the
Voltage Conversion instructions included in
this manual. The intended 220V circuit must
have a verified ground and meet the following
requirements:
Nominal Voltage................................ 220V/240V
Cycle..............................................................60 Hz
Phase...............................................Single-Phase
Circuit Rating....................................... 15 Amps
Plug/Receptacle................................NEMA 6-15
-10-
Figure 2. NEMA 5-15 plug and receptacle.
For 220V Connection
Use the plug type listed in the Circuit
Requirements for this voltage. The listed plug
(similar to the figure below) has an equipmentgrounding wire to safely ground the machine.
The plug must only be inserted into a matching
receptacle (outlet) that is properly installed and
grounded in accordance with all local codes and
ordinances.
GROUNDED
6-15 RECEPTACLE
Current Carrying Prongs
6-15 PLUG
Grounding Prong
Figure 3. NEMA 6-15 plug and receptacle.
For Machines Mfg. Since 8/09
P R E P A R A TI O N
Model SB1020
Unpacking
Serious injury could occur if you connect
the machine to power before completing the
setup process. DO NOT connect to power until
instructed later in this manual.
Improper connection of the equipment-grounding
wire can result in a risk of electric shock. The
wire with green insulation (with or without
yellow stripes) is the equipment-grounding wire.
If repair or replacement of the power cord or
plug is necessary, do not connect the equipmentgrounding wire to a live (current carrying)
terminal.
Check with a qualified electrician or service
personnel if you do not understand these
grounding requirements, or if you are in doubt
about whether the tool is properly grounded.
If you ever notice that a cord or plug is
damaged or worn, disconnect it from power, and
immediately replace it with a new one.
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
need to file a freight claim, so save the containers
and all packing materials for possible inspection
by the carrier or its agent.
Inventory
The items listed below are optional components
and are not required for bandsaw operations.
Description
Qty
A. Work Stop........................................................ 1
B. Work Stop Rod
A
Extension Cords
We do not recommend using an extension cord
with this machine. If you must use one, only
use it if absolutely necessary and only on a
temporary basis.
Extension cords cause voltage drop, which may
damage electrical components and shorten motor
life. Voltage drop increases as the extension cord
size gets longer and the gauge size gets smaller
(higher gauge numbers indicate smaller sizes).
B
Figure 4. Inventory.
Any extension cord used with this machine
must contain a ground wire, match the required
plug and receptacle listed in the Circuit
Requirements for the applicable voltage, and
meet the following requirements:
Minimum Gauge Size.............................12 AWG
Maximum Length (Shorter is Better).....50 ft.
-11-
Model SB1020
P R E P A R A TI O N
For Machines Mfg. Since 8/09
Cleaning & Protecting
The unpainted surfaces are coated at the factory
with a heavy-duty rust preventative that
prevents corrosion during shipment and storage.
The benefit of this rust preventative is that it
works very well. The downside is that it can be
time-consuming to thoroughly remove.
Be patient and do a careful job when cleaning
and removing the rust preventative. The time
you spend doing this will reward you with
smooth-sliding parts and a better appreciation
for the proper care of the unpainted surfaces.
Although there are many ways to successfully
remove the rust preventative, we have cleaned
thousands of machines and found the following
process to be the best balance between efficiency
and minimized exposure to toxic fumes or
chemicals.
Before cleaning, gather the following:
•
•
•
Disposablerags
Cleaner/degreaser (certain citrus-based
degreasers work extremely well and they
have non-toxic fumes)
Safetyglasses&disposablegloves
Note: Automotive degreasers, mineral spirits, or
WD•40canbeusedtoremoverustpreventative.
Before using these products, though, test them
on an inconspicuous area of a painted area to
make sure they will not damage it.
Many cleaning solvents are
toxic if inhaled. Minimize
your risk by only using
these products in a well
ventilated area.
Avoid chlorine-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.
Basic steps for removing rust preventative:
1.
2. Coatallsurfacesthathaverustpreventative
with a liberal amount of your cleaner or
degreaser and let them soak for a few
minutes.
3.
GA
S
-12-
Wipe off the surfaces. If your cleaner or
degreaser is effective, the rust preventative
will wipe off easily.
Note: To clean off thick coats of rust preventative
on flat surfaces, such as beds or tables, use
aPLASTICpaintscrapertoscrapeoffthe
majority of the coating before wiping it off
withyourrag.(Donotuseametalscraperor
it may scratch the surface.)
4.
Gasoline and petroleum
products have low flash
points and can explode
or cause fire if used for
cleaning. Avoid using these
products to remove rust
preventative.
Put on safety glasses and disposable gloves.
Repeat Steps 2–3 as necessary until clean,
then coat all unpainted surfaces with a
quality metal protectant or light oil to
prevent rust.
For Machines Mfg. Since 8/09
P R E P A R A TI O N
Location
Weight Load
Physical Environment
Physical Environment
The physical environment where your machine
is operated is important for safe operation and
longevity of parts. For best results, operate this
machine in a dry environment that is free from
excessive moisture, hazardous or flammable
chemicals, airborne abrasives, or extreme
conditions. Extreme conditions for this type
of machinery are generally those where the
ambient temperature is outside the range of 41°–
104°F; the relative humidity is outside the range
of 20–95% (non-condensing); or the environment
is subject to vibration, shocks, or bumps.
Electrical Installation
Place this machine near an existing power
source. Make sure all power cords are protected
from traffic, material handling, moisture,
chemicals, or other hazards. Make sure to leave
access to a means of disconnecting the power
source or engaging a lockout/tagout device.
Refer to the Machine Specifications for the
weight of your machine. Make sure that the
surface upon which the machine is placed will
Installation
bear the weight Electrical
of the machine,
additional
equipment that may be installed on the machine,
and the heaviest workpiece that will be used.
Lighting
Additionally, consider
the weight of the operator
and any dynamic loading that may occur when
operating the machine.
Weight Load
Space Allocation
Consider the largest size of workpiece that will
be processed through this machine and provide
Space Allocation
enough space around the machine for adequate
operator material handling or the installation
of auxiliary equipment. With permanent
installations, leave enough space around
the machine to open or remove doors/covers
as required by the maintenance and service
described in this manual.
Lighting
Lighting around the machine must be adequate
enough that operations can be performed
safely. Shadows, glare, or strobe effects that
may distract or impede the operator must be
eliminated.
Wall
Model SB1020
Children or untrained
people may be seriously
injured by this machine.
Only install in an access
restricted location.
27¾"
Power
Connection
60¾"
15"
Minimum
30"
55"
(Drawing Not to Scale)
Figure 5. Clearances.
-13-
P R E P A R A TI O N
Model SB1020
Lifting & Moving
This machine and its
parts are heavy! Serious
personal injury may occur
if safe moving methods are
not used. To reduce the
risk of a lifting or dropping
injury, ask others for help
and use power equipment.
Unbolt the machine from its pallet, then insert
two round steel bars through the lifting holes
in the machine base. Attach lifting straps and
hooks to the bars as shown in Figure 6. Lift
the machine just high enough to clear the
pallet, then move it to its final location. Have an
assistant stabilize the machine while moving.
For Machines Mfg. Since 8/09
Leveling & Mounting
Generally, you can either bolt your machine
to the floor or mount it on machine mounts.
Although not required, we recommend that you
secure the machine to the floor and level it while
doing so. Because this is an optional step and
floor materials may vary, hardware for securing
the machine to the floor is not included.
We strongly recommend securing your
machine to the floor if it is hardwired to the
power source. Consult with your electrician to
ensure compliance with local codes.
Leveling
Leveling machinery helps precision components,
such as bed ways, remain straight and flat
during the lifespan of the machine. Components
on an unleveled machine may slowly twist due to
the dynamic loads placed on the machine during
operation.
For best results, use a precision level that
is at least 12" long and sensitive enough to
show a distinct movement when a 0.003" shim
(approximately the thickness of one sheet of
standard newspaper) is placed under one end of
the level.
See the figure below for an example of a high
precision level.
Figure 6. Lifting location.
Figure 7. Example of a precision level.
-14-
P R E P A R A TI O N
For Machines Mfg. Since 8/09
Bolting to Concrete Floors
Lag screws and anchors, or anchor studs
(below), are two popular methods for securing
machinery to a concrete floor. We suggest you
research the many options and methods for
securing your machine and choose the best one
for your specific application.
Anchor
Stud
Lag Screw
and Anchor
Model SB1020
Machine Mounts
Machine mounts are rubber pads mounted to
a threaded stud, which can be fastened to the
bottom of the machine.
Machine mounts offer certain advantages such
as ease of installation, vibration dampening, and
easy leveling. They also make it easier to relocate
the machine later on.
The disadvantage of machine mounts is that the
machine can shift or move over time. For this
reason, electrical codes may limit their use if
the machine is hardwired to the power source.
Also, mounts may reduce the total surface area
of machine-to-floor contact, depending on the
design of the machine.
Figure 8. Common types of fasteners for bolting
machinery to concrete floors.
Figure 9. Typical machine mount.
-15-
Model SB1020
P R E P A R A TI O N
Power Connection
Electrocution or fire
may occur if machine is
ungrounded, incorrectly
connected to power, or
connected to an undersized
circuit. Use a qualified
electrician to ensure a safe
power connection.
Once your machine is set up and assembled as
previously described in this manual, it is ready to
be connected to the power source.
•
If you plan to use the machine at 110V,
simply plug it into a receptacle on a 110V
circuit that meets the requirements listed on
Page 10.
•
If you plan to use the machine at 220V, you
will have to convert the machine for 220V.
Refer to Electrical, beginning on Page 42.
For Machines Mfg. Since 8/09
Machine Setup
To ensure that your bandsaw arrives without
damage to the hinge system, a shipping strap
was installed. After removing the shipping strap,
you may choose to install the work stop.
To set up the machine:
1. Remove the shipping strap hex bolt and
strap as shown in Figure 10. Keep this
shipping strap in case you transport or ship
the bandsaw in the future.
Shipping Strap
Figure 10. Removing a shipping strap.
2. Thread the work stop rod into the vise base.
3. Slide the work stop onto the work stop rod,
position it as necessary, then tighten the set
screw shown in Figure 11.
Work Stop
Set Screw
Figure 11. Installing work stop.
-16-
For Machines Mfg. Since 8/09
P R E P A R A TI O N
Test Run
Model SB1020
4. Put on safety glasses and secure loose
clothing or long hair.
After all preparation steps have been completed,
the machine and its safety features must be
tested to ensure correct operation. If you discover
a problem with the operation of the machine or
its safety components, do not operate it further
until you have resolved the problem.
Note: Refer to Troubleshooting on Page 34
for solutions to common problems that may
occur with metal-cutting bandsaws. If you need
additional help, contact our Tech Support at
(360) 734-1540.
To test run your machine:
1. Read and follow the safety instructions at
the beginning of the manual, take the required safety precautions, and make sure the
machine is set up properly.
2. Clear away all tools and objects used during
assembly and preparation.
3. Open the downfeed knob (see Figure 12)
and allow the headstock to travel all the
way down. If the blade contacts the machine
base, adjust the downfeed stop bolt as
described in Downfeed Stop Bolt, on Page
39.
Downfeed
Knob
5. Lift the headstock to the raised position,
then close the downfeed knob to prevent it
from lowering.
6. Start the bandsaw, but keeping your finger
near the emergency stop button at all times
during the test run. The bandsaw should run
smoothly with little or no vibration.
—If you suspect any problems, immediately
turn the bandsaw OFF, disconnect it from
power, and correct the problem before
continuing.
—If you need any help with your bandsaw
call our Tech Support at (360) 734-1540.
7. Open the downfeed knob to lower the saw
through its full range of motion. When it
reaches the bottom of its travel, it should
turn OFF.
—If it does, Congratulations! The test run is
complete.
—If it does not, turn it OFF, disconnect it
from power, then proceed immediately to
Limit Switches, on Page 38.
Inspections &
Adjustments
The following list of adjustments were performed
at the factory before your machine was shipped.
If you find that the adjustments are not set
according to the procedures in this manual or
your personal preferences, re-adjust them.
Figure 12. Downfeed valve location.
• Squaring Blade ..................................Page 40
• Blade Guides ......................................Page 28
-17-
Model SB1020
O P E R A TI O N
For Machines Mfg. Since 8/09
OPERATION
Operation Overview
To complete a typical cutting operation, the
operator does the following:
The purpose of this overview is to provide
the novice machine operator with a basic
understanding of how the machine is used during
operation, so they can more easily understand
the controls discussed later in this manual.
1. Examines the workpiece to make sure it is
suitable for cutting.
Note: Due to the generic nature of this overview,
it is not intended to be an instructional guide
for performing actual machine operations.
To learn more about specific operations and
machining techniques, seek training from people
experienced with this type of machine, and do
additional research outside of this manual by
reading "how-to" books, trade magazines, or
websites.
3. Adjusts the headstock angle for the type of
cut, then securely clamps the workpiece in
the vise.
To reduce the risk of
serious injury when using
this machine, read and
understand this entire
manual before beginning
any operations.
Loose hair, clothing, or
jewelry could get caught
in machinery and cause
serious personal injury.
Keep these items away
from moving parts at all
times to reduce this risk.
During operation, small
metal chips may become
airborne, leading to serious
eye injury. Wear safety
glasses to reduce this risk.
-18-
2. Raises the headstock, then closes the
downfeed valve.
4. Adjusts the guide post to within 1" of the
workpiece, and verifies that the blade is
properly tensioned.
5. Adjusts the downfeed rate adjust knob for
the correct feed rate.
6. Makes sure the workpiece and bandsaw are
stable and that there are no obstructions in
the way of the cut.
7. Puts on safety glasses.
8. Starts the bandsaw and waits for the blade
to reach full speed.
9. Opens the downfeed valve to lower the head
and blade into the workpiece, then allows
the bandsaw to complete the cut.
10. Once the bandsaw has stopped, raises the
head, and removes the workpieces.
For Machines Mfg. Since 8/09
O P E R A TI O N
Description of Controls
& Components
Model SB1020
P. Main Power Switch: Turns the saw ON/OFF.
Q. Emergency Stop Button: Cuts power to the
motor.
Refer to Figures 13–15 and the following
descriptions to become familiar with the basic
controls and components used to operate this
machine.
A. Blade Tension Knob: Applies or releases
blade tension.
B
C
D
A
B. Blade Tension Gauge: Displays blade
tension.
E
C. Guide Post Lock Screw: Locks the guide post
in the position set by the operator.
D. Control Panel: Controls the electrical
components of the machine.
J
I
E. Downfeed Rate Adjust Knob: Controls the
speed at which the blade lowers into the cut.
H
F
G
Figure 13. Controls and components (front).
F. Downfeed Valve: Controls the starting and
stopping of the headstock downfeed.
G. Work Stop: An adjustable stop for cutting
multiple workpieces at the same length.
L
H. Vise Slide Lock Lever: Locks the vise in the
position set by the operator.
I.
K
Swivel Lock Handle: Locks the headstock in
the position set by the operator.
Figure 14. Controls and components (rear).
J. Vise Handwheel: Controls the vise jaw
movement.
K. Headstock Handle: Serves as a lift-point for
the headstock.
M
P
N
Q
L. Vise Jaw Quick Release Lever: Releases the
vise leadscrew so the vise can quickly open
or close without the use of the handwheel.
O
M.Indicator Lamp: Lights when the saw is ON.
N. Variable Blade Speed Knob: Adjusts the
blade speed.
O. ON Button: Starts the saw and coolant pump.
Figure 15. Control panel.
-19-
O P E R A TI O N
Model SB1020
Blade Selection
Selecting the right blade for the cut requires a
knowledge of various blade characteristics. This
section breaks down blade characteristics to help
the reader make an informed decision about
what blade to use for a given operation.
Blade Terminology
B
F. Gullet Depth: The distance from the tooth
tip to the bottom of the curved area (gullet).
G. Tooth Pitch: The distance between tooth
tips.
I.
C
F
Blade Pitch or TPI: The number of teeth per
inch measured from gullet to gullet.
Blade Length
H
D
G
I
Figure 16. Bandsaw blade terminology.
A. Kerf: The width of the cut made during operation.
B. Tooth Set: The distance each tooth is bent
left or right from the blade.
C. Gauge: The thickness of the blade.
D. Blade Width: The widest point of the blade
measured from the tip of the tooth to the
back edge of the blade.
-20-
E. Tooth Rake: The angle of the tooth face
from a line perpendicular to the length of the
blade.
H. Blade Back: The distance between the bottom of the gullet and the back edge of the
blade.
A
E
For Machines Mfg. Since 8/09
Measured by the blade circumference, blade
lengths are usually unique to the brand of your
bandsaw and the distance between the wheels.
Model
Blade Length
SB1020........................................................... 108 1⁄4"
Blade Width
Measured from the back of the blade to the tip
of the blade tooth (the widest point), blade width
is often the first consideration given to blade
selection. Blade width dictates the largest and
smallest curve that can be cut, as well as how
accurately it can cut a straight line—generally
the wider the blade, the straighter it will cut.
Model
Blade Width
SB1020.............................................................. 1 1⁄16"
O P E R A TI O N
For Machines Mfg. Since 8/09
Model SB1020
Tooth Set
Three common tooth sets are alternate, wavy,
and raker (see Figure 17). Each removes
material in a different manner to make the kerf
in the workpiece.
Standard (or Raker)
Raker
Wavy
Alternate
Variable Pitch (VP)
Variable Pitch Positive Rake
Hook (or Claw)
Figure 17. Bandsaw blade tooth sets.
Alternate: An all-purpose arrangement with
teeth bent evenly left and right of the blade.
Generally used for milder metals.
Wavy: Generally three or more teeth in a group
that are bent one way, followed by a non-set
tooth, and then a group bent the other way.
Recommended for straight cuts in thin metals or
thin-wall tubing.
Raker: Three teeth in a recurring group—one
bent left, next one bent right, and then a nonset tooth. The raker set is ideal for most contour
cuts.
Tooth Type
The most common tooth types are described
below and illustrated in Figure 18. Each
removes, gathers, and expels material
differently.
Skip (or Skip Tooth)
Figure 18. Bandsaw blade tooth types.
Variable Pitch (VP): Varying gullet depth and
tooth spacing, a "0" rake angle, excellent chip
removing capacity, and smooth cutting.
Variable Pitch with Positive Rake: Varying
gullet depth and tooth spacing, a positive rake
angle, better chip formation, and aggressive
cutting.
Hook or Claw: Wide gullets (round or flat),
equally spaced teeth, positive rake angle, and
fast cut with good surface finish.
Skip or Skip Tooth: Wide, flat gullets, a "0" rake
angle, equally spaced teeth, and recommended
for non-ferrous materials.
Standard or Raker: Equally spaced teeth set at
a "0" rake angle. Recommended for all purpose
use.
-21-
O P E R A TI O N
Model SB1020
Blade Pitch (TPI)
For Machines Mfg. Since 8/09
3. Refer to the "Material Shapes" row and find
the shape of the material to be cut.
The chart below is a basic starting point for
choosing teeth per inch (TPI) for variable pitch
blades and standard raker set bi-metal blades/
HSS blades. However, for exact specifications
of bandsaw blades that are correct for your
operation, contact the blade manufacturer.
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.
To select the correct blade pitch:
5. The "Cutting Speed Rate Recommendation"
section of the chart offers guidelines for
various metals, given in feet per minute
(FPM). Choose the speed closest to the
number shown in the chart.
1. Measure the material thickness. This
measurement is the distance from where
each tooth enters the workpiece to where it
exits the workpiece.
2. Refer to the "Material Width/Diameter"
row of the blade selection chart in Figure
19, and read across to find the workpiece
thickness you need to cut.
Material Width/Diameter
Teeth Per Inch (TPI) for Bandsaw Blades
Material Shapes
TOOTH SELECTION
mm 50
75
100
150
5/8
4/6
4/6
3/4
2/3
3/4
inch
2 2½ 3
3½ 4 5
6
200
3/4
250
300
2/3
350
400
2/3
1.5/.8
1.4/2.5
1.5/.8
1.4/2.5
7
8
9
10
11
12
13
14
15
Figure 19. General guidelines for blade selection and speed chart.
-22-
450
16
17
18
19
For Machines Mfg. Since 8/09
O P E R A TI O N
Model SB1020
Blade Changes
Change blades when they become dull, damaged,
or if the operation requires a different type of
blade.
Bla
de
Tra
vel
To change the blade on the bandsaw:
1. DISCONNECT BANDSAW FROM POWER!
2. Raise the head of the bandsaw, then remove
the blade cover.
3. Loosen the tension knob and slip the blade
off of the wheels.
4. Install the new blade through both blade
guides, as shown in Figure 20, and around
the bottom wheel.
!
Figure 21. Blade cutting direction.
6. When the blade is around both wheels,
adjust the position so the back of the blade
is against the wheel shoulder, as shown in
Figure 22.
!
Wheel Shoulder
Blade
Guides
Figure 20. Typical blade installation.
5. 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 guides.
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 21, after
installing it on the bandsaw. Some blades
will have a directional arrow you can use as
a guide.
Figure 22. Typical blade/wheel position.
7. Tighten the tension knob so the blade will
not slip on the wheels upon startup.
8. Connect the bandsaw to the power source.
9. Briefly turn the bandsaw ON then OFF to
position the blade and resume the previous
tracking. Proceed to Blade Tension on
Page 24.
-23-
Model SB1020
O P E R A TI O N
For Machines Mfg. Since 8/09
blade selection
Blade Tension
Blade Breakage
Proper blade tension is essential to avoid blade
vibration, twist, or`slippage on the wheels. A
correctly tensioned blade provides long life,
straight cuts, and efficient cutting times.
Many conditions may cause a bandsaw blade to
break. Some of these conditions are unavoidable
and are the natural result of the stresses placed
on the bandsaw; other causes of blade breakage
are avoidable.
The three major signs of incorrect blade tension
are: 1) The blade stalls in the cut and slips on the
wheels, 2) the blade frequently breaks, and 3) the
bandsaw does not make straight cuts.
The most common causes of avoidable blade
breakage are:
•
Faulty alignment or adjustment of the blade
guides.
•
Forcing or twisting a wide blade around a
tight radius.
•
Feeding the workpiece too fast.
•
Dull or damaged teeth.
•
Over-tensioned blade.
•
Top blade guide assembly set too high above
the workpiece. Adjust the top blade guide
assembly so that there is approximately
1
⁄8"–1⁄4" between the bottom of the assembly
and the workpiece. Understand that with
smaller workpieces, this may not be possible.
In these cases, simply adjust the blade guide
as far down as possible.
•
Using a blade with a lumpy or improperly
finished braze or weld.
•
Continuously running the bandsaw when not
in use.
•
Leaving the blade tensioned when not in use.
•
Using the wrong blade pitch (TPI) for the
workpiece thickness. The general rule of
thumb is to have no fewer than three teeth
in contact with the workpiece when starting
a cut and at all times during cutting.
To tension the blade on the bandsaw:
1. Make sure the blade is tracking properly.
2. DISCONNECT BANDSAW FROM POWER!
3. Loosen and slide the blade guide as far out
as it will go, then tighten it down again.
4. Turn the tension knob in Figure 23
clockwise to tighten the blade or clockwise to
loosen the blade.
Tension
Gauge
Blade
Tension
Knob
Figure 23. Adjusting blade tension.
5. Tighten the blade until the tension gauge
moves into the green section.
-24-
!
For Machines Mfg. Since 8/09
O P E R A TI O N
Model SB1020
Blade Care & Break-In Downfeed Rate
Blade Care
To prolong blade life, always use a blade with
the proper width, set, type, and pitch for each
application. Maintain the appropriate feed rate,
feed pressure, and blade speed and pay attention
to the chip characteristics (Refer to the Chip
Inspection Chart on Page 26). Keep your
blades clean, since dirty or gummed up blades
pass through the cutting material with much
more resistance than clean blades, causing
unnecessary heat.
Start and stop downfeed with the downfeed knob.
The downfeed rate is adjusted by turning the
downfeed rate adjust knob (Figure 24). Turning
the knob clockwise decreases the downfeed rate
and turning the knob counterclockwise increases
the downfeed rate.
Downfeed Rate
Adjust Knob
Blade Break-In
The tips and edges of a new blade are extremely
sharp. Cutting at too fast of a feed rate or too
slow of a blade speed can fracture these tips
and edges, quickly dulling the blade. Properly
breaking-in a blade allows these sharp edges
to wear without fracturing, thus keeping the
blade sharp longer. Below is a typical break-in
procedure. For aftermarket blades, refer to the
manufacturer's break-in procedure to keep from
voiding the warranty.
Use the Chip Inspection Chart on Page 26 as
a guide to evaluate the chips and ensure that the
optimal blade speed and feed rate are being used.
To properly break-in a new blade:
1. Choose the correct speed for the blade and
material of the operation.
Downfeed
Knob
Figure 24. Downfeed pressure adjustment.
Downfeed Pressure
The downfeed pressure is controlled by the
spring shown in Figure 25.
To decrease downfeed pressure, turn the cap
screw clockwise to increase spring tension.
To increase downfeed pressure, turn the cap
screw counterclockwise to release spring tension.
2. Reduce the feed pressure by half for the first
50–100 in2 of material cut.
3. To avoid twisting the blade when cutting,
adjust the feed pressure when the total
width of the blade is in the cut.
Cap
Screw
Spring
Figure 25. Downfeed rate adjustment.
-25-
O P E R A TI O N
Model SB1020
For Machines Mfg. Since 8/09
Blade Speed Chart
The chart in Figure 26 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 feed rate as necessary, using the appearance of the chips produced as a guide. Refer to
the Chip Inspection Chart that follows for recommendations on adjusting feed rate or blade speed
based on the appearance of the chips produced.
CUTTING SPEED RATE RECOMMENDATION
Speed FPM
Speed FPM
Speed FPM
Speed FPM
Material
Material
Material
Material
(M/Min)
(M/Min)
(M/Min)
(M/Min)
Carbon 196~354
Free Machining
203
111~321
150~203
Alloy
Tool Steel
Steel
(60) (108)
(62)
(34) (98) Stainless Steel (46) (62)
Steel
Angle
Steel
180~220
(54) (67)
High-Speed
Tool Steel
75~118
(25) (36)
Mold Steel
246
(75)
Thin
Tube
180~220
(54) (67)
Cold-Work
Tool Steel
95~213
(29) (65)
242
(75)
Aluminum 220~534
(67) (163)
Alloy
Hot-Work
Tool Steel
203
(62)
Water
Hardened
Tool Steel
Stainless
Steel
Oil-Hardened
Tool Steel
203~213
(62) (65)
CR Stainless
Steel
Copper
Alloy
229~482
(70) (147)
108~225
(33) (75)
65~85
(20) (26)
85
(26)
Gray
Cast Iron
Ductile
Austenitic
Cast Iron
Malleable
Cast Iron
85-203
(26) (62)
Plastics
220
(67)
321
(98)
Figure 26. Dry cutting blade speed chart.
Chip Inspection Chart
The best method for choosing the cutting speed and feed rate for a cutting operation is to inspect the
chips created by the cut.
thin &These
curled chips are indicators of what is commonly referred to as the "chip load."
Refer to the chip inspection
chart below to evaluate chip characteristics and determine whether to
thin & curled
thin & curled
adjust feed rate/pressure,
blade
speed, or both.
thin & curled
Chip
Appearance
thin & curled
short,
hard & thick
Chip
thin & curled
short,
hard
& thick
short,
hard
& thick
Chip
Color
Blade
Speed
Feed Rate/
Pressure
Silver
Good
Good
Brown or Blue
Increase
Decrease
Brown or Blue
Increase
Decrease
Silver or Light
Brown
Good
Decrease
Slightly
Check Blade
Pitch
Silver
Increase
Decrease
Check Blade
Pitch
Silver
Good
Increase
Silver
Decrease
Increase
Silver
Good
Decrease
Description
thin &hard
curled
short,
& thick
thin & curled
Thin
&&&Curled
short,
hard
thick
thick,
hard
strong
short,
hard
& thick
thick,
hard
& strong
thick,
hard
& strong
short,
hard
thick
Hard,
Thick
& Short
thick,
hard
&&
strong
short, hard & thick
thick, hard & strong
thick,
hard
& strong
Hard,
Strong
thick,
hard
& strong&
thick, hard & strong
Thick
thick,hard
hard&&strong
strong
thick,
thick, hard & strong
Hard,
Strong,
hard
&hard
thin & strong
thick,
hard
& thin
Curled
& Thick
thick,
hard
hard & thin & strong
thick,
hard
& hard
thin & strong
Hard,
& Thin
thick,
hardCoiled
& strong
thin
& straight
hard
thin
thin
&&straight
hard & thin
thin & straight
Straight & Thin
hard& &straight
thin
thin
powdery
thin & straight
Powdery
powdery
thin & straight
powdery
hard & thin
powdery
thin & straight
Coiled,
Tight & Thin
thin
& straight
powdery
thin & curled tightly
powdery
thin & curled tightly Figure
powdery
thin
& curled tightly
powdery
thin & curled tightly
thin & curled tightly
thin & curled tightly
-26-
thin & curled tightly
27. Chip inspection chart.
Other
Actions
Check Blade
Pitch
For Machines Mfg. Since 8/09
O P E R A TI O N
Angle Cuts
Model SB1020
3. Loosen the vise slide lock (see Figure 28).
The headstock can be swiveled to cut angles
from 0–60° to the left and 0–45° to the right for
a total swing of 105°. When making cuts to the
right, the vise should remain in the left-most
position. If you need to make a cut to the left, you
will have to move the vise to the right side of the
machine.
4. Slide the vise to the right until it stops.
Cuts to the Right
1. DISCONNECT BANDSAW FROM POWER!
2. Loosen the lock handle shown in Figure
28, then swivel the headstock to the desired
angle, using the angle scale as a guide.
!
Swivel Lock
Handle
Figure 29. Moving vise.
5. Move the saw through its full range of
motion to make sure the blade will not
contact the vise during operation, then
tighten the swivel lock handle.
Work Stop
Vise Slide
Lock
Angle Scale
Figure 28. Swivel base.
3. Move the saw through its full range of
motion to make sure the blade will not
contact the vise during operation, then
tighten the swivel lock handle.
The Model SB1020 is equipped with a work
stop that can be used to quickly position the
workpiece during a repetitive cutting operation.
Adjust the work stop as needed, then tighten the
set screw and knob to lock it in place, as shown
in Figure 30.
Cuts to the Left
1. DISCONNECT BANDSAW FROM POWER!
2. Lift the headstock to the upmost position,
then close the downfeed valve to prevent it
from lowering.
Knob
Set Screw
Figure 30. Work stop.
-27-
O P E R A TI O N
Model SB1020
For Machines Mfg. Since 8/09
Blade Guide
Vise Quick Release
The upper blade guide should adjusted to
approximately 1⁄4" away from the workpiece.
The support provided by having the blade guide
close to the workpiece ensures straight cuts and
reduces blade tendency to twist or drift.
The Model SB1020 has a vise quick release
handle that allows the operator to quickly
adjust the opening of the jaws without the use
of the handwheel. Rotate the handle clockwise
to disengage the vise leadscrew, then slide the
vise open or closed as needed. To re-engage the
leadscrew, release the vise quick release handle.
To adjust the blade guide:
1. DISCONNECT BANDSAW FROM POWER!
2. Loosen the cap screw in Figure 31 and slide
the blade guide to approximately 1⁄4" away
from the workpiece, then re-tighten the cap
screw.
Blade Guide
Vise Quick Release
Handle
!
Figure 32. Vise quick release handle.
Cap Screw
Figure 31. Blade guides.
Workpiece Holding
Figure 33 shows the correct methods for holding
different workpiece shapes.
NOT
RECOMMENDED
RECOMMENDED
Figure 33. Workholding options by material shape.
-28-
For Machines Mfg. Since 8/09
O P E R A TI O N
Model SB1020
Cutting Fluid
Cutting Fluid System
While simple in concept and function, many
issues must be taken into account to find and use
the correct cutting fluid. Always follow all product
warnings and contact the fluid manufacturer for
unanswered questions.
This bandsaw has a built-in cutting fluid system
that extends the life of your bandsaw blades
by lowering the temperature of the blade and
workpiece and washing away chips.
Use the information below as a guideline to choose
the appropriate cutting fluid. Always refer to the
cutting fluid manufacturer for specific application
and safety information:
1. Thoroughly clean and remove any foreign
material that may have fallen inside the
reservoir during shipping.
•
For cutting low alloy, low carbon, and
general-purpose category metals with a
bi-metal blade­—use a water soluble cutting
fluid.
•
For cutting stainless steels, high carbon, and
high alloy metals, brass, copper and mild
steels—use "Neat Cutting Oil" (commonly
undiluted mineral oils) that have extreme
pressure additives (EP additives).
•
For cutting cast iron, cutting fluid is not
recommended.
Remember: Too much flow at the cutting fluid
nozzles will make a mess and can make the work
area unsafe; and not enough fluid at the cut will
heat the blade, causing the blade teeth to load up
and break.
Tip: Using a refractometer or hydrometer to
replenish water in water-based coolant can extend
the life of blades and coolant, and ensure consistent cutting results.
BIOLOGICAL AND POISON
HAZARD! Use proper personal
protection equipment when
handling cutting fluid and
follow federal, state, and fluid
manufacturer requirements
to properly dispose of cutting
fluid.
To use the cutting fluid system:
2. Place the filter screen and drain tube in the
reservoir as shown in Figure 34.
Drain
Tube
High
Low
Figure 34. Filter screen and hose.
3. Fill the reservoir to the "high" mark with
your chosen cutting fluid solution.
Magnesium fires are
extremely dangerous!
When cutting magnesium,
always use a cutting fluid
intended for this type of
metal and carefully follow
the fluid manufacturer's
recommendations.
-29-
O P E R A TI O N
Model SB1020
4. Adjust the valves on the coolant hoses to
control the flow of coolant (see Figure 35).
Make sure that the pressure is not so high
that coolant spills on the floor and creates a
slipping hazard.
Coolant Control Valves
Figure 35. Coolant control valve.
NOTICE
Keep the tray chip screen clear so coolant can
recycle to the pump reservoir. NEVER operate
the pump with the reservoir below the low
mark or you may over-heat the pump and void
your warranty!
-30-
For Machines Mfg. Since 8/09
Operation Tips
Review the following tips to help you safely and
effectively operate your bandsaw and get the
maximum life out of your saw blades.
•
Use the work stop to quickly and accurately
cut multiple pieces of stock to the same
length.
•
Let the blade reach full speed before
engaging the workpiece. Never start a cut
with the blade in contact with the workpiece.
•
Pay attention to the chips produced by the
cutting operation and use their appearance
to fine-tune the blade speed, feed speed,
and pressure (refer to the Chip Inspection
Chart on Page 26).
•
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!
Release blade tension at the end of each use
to prolong blade life.
For Machines Mfg. Since 8/09
ACC ESSOR I ES
Model SB1020
ACCESSORIES
Accessories
This South Bend merchandise may be available
through your local South Bend Lathe Co. dealer.
If you do not have a dealer in your area, please
call us at (360) 734-1540 or email us at
cs[email protected]
SBL Gearhead T-Shirt
SBL One Good Turn T-Shirt
100% Cotton, preshrunk T-shirts, available in
sizes S, M, L, XL, 2XL, 3XL.
SB1298—SBL Bench Lathe Shop Clock
SB1299—SBL Toolroom Lathe Shop Clock
SB1300—SBL Lathe with Man
These fine traditional shop clocks are constructed
with a metal antique-finished frame. They are
easy to read from a distance and measure 14"
in diameter. Pictures just don't do them justice.
They are very nice quality clocks and perfect for
the South Bend Lathe aficionado.
SB1298
SB1299
Figure 37. Official South Bend Lathe T-Shirts.
SB1300
Figure 36. Antique-finished South Bend shop clocks.
-31-
MAINTENANCE
Model SB1020
For Machines Mfg. Since 8/09
MAINTENANCE
Maintenance Schedule Lubrication
!
Before applying lubricant to any area, wipe the
area clean to avoid contamination.
Always disconnect
machine from power before
performing maintenance or
serious personal injury may
result.
For optimum performance from your machine,
follow this maintenance schedule and refer to
any specific instructions given in this section.
Daily
•
•
•
•
•
•
Check/correct loose mounting bolts.
Check/correct damaged or dull saw blade.
Check/correct worn or damaged wires.
Clean/protect table.
Clean metal chips from upper and lower
wheel areas, and empty the chip chute.
Correct any other unsafe condition.
Monthly
•
•
Lubricate all components outlined in this
section, with the exception of the gearbox.
Monitor gearbox oil level by removing the fill
plug and checking that the oil level is even
with the fill hole (with headstock lowered)
Lubricate the following areas:
A. Blade Tension Mechanism: Open the main
blade guard, then 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: Change the gear oil annually.
D.Table and Machined Surfaces: Keep bare
metal surfaces rust-free with regular
applications of a quality way oil.
E. Vise Leadscrew: Clean the leadscrew, then
brush on a thin layer oft grease as needed.
C
A
B
E
Yearly
•
Lubricate gearbox.
D
Cleaning
Use a brush and a shop vacuum to remove chips
and other debris from the machine. Keep the
non-painted surfaces rust-free with regular
applications of a high quality rust preventative.
Periodically remove the blade and thoroughly
clean all metal chips or built-up grease from the
wheel surfaces and blade housing.
-32-
Figure 38. Lubrication points.
For Machines Mfg. Since 8/09
MAINTENANCE
Gearbox
Items Needed
Qty
Wrench 4mm.......................................................... 1
Mobilgear 600 XP 680 or ISO 680 Equivalent
Gear Oil......................... Approximately 1 Pint
Drain Pan............................................................... 1
Shop Rags................................................ As needed
Wooden Blocks........................................ As needed
Model SB1020
Machine Storage
All machinery will develop serious rust problems
and corrosion damage if it is not properly
prepared for storage. If decommissioning this
machine, use the steps in this section to ensure
that it remains in good condition.
To change the gearbox oil:
To prepare your machine for storage or
decommission it from service:
1. DISCONNECT BANDSAW FROM POWER!
1. DISCONNECT BANDSAW FROM POWER!
2. Loosen the gearbox fill plug (see Figure 39).
2. Thoroughly clean all unpainted, bare metal
surfaces, then coat them with a light weight
grease or rust preventative. Take care to
ensure these surfaces are completely covered
but that the grease or rust preventative is
kept off of painted surfaces.
Fill Plug
Figure 39. Gearbox fill plug.
3. Place the drain pan under the drain plug,
then remove the drain plug (see Figure 40)
to drain the oil.
Drain Plug
Figure 40. Gear box lubrication.
4. Replace the drain plug, lower the headstock,
then add oil through the fill plug hole until
the oil level reaches the fill hole.
If the machine will be out of service for only
a short period of time, use a quality mediumweight machine oil (not auto engine oil) in
place of the grease or rust preventative.
3. Loosen or remove the blade so it does not
stretch or rust while the machine is stored.
4. If the machine will be out of service for only
a short period of time, start the machine
once a week and run all gear-driven
components for a few minutes. This will
put a fresh coat of gear oil on the gearing
components inside the gearbox.
If it will be out of service for a long period
of time, drain, then completely fill the
gearbox with the recommended gear oil so
components above the normal oil level do
not develop rust. (Make sure to put a tag
on the controls as a reminder for the recommissioning process to adjust the gear oil
level before starting the machine.)
5. Completely cover the machine with a tarp
or plastic sheet that will keep out dust and
resist liquid or moisture. If machine will be
stored in/near direct sunlight, use a cover
that will block the sun's rays.
5. Replace the fill plug.
-33-
TROU B LESHOOTI NG
Model SB1020
For Machines Mfg. Since 8/09
TROUBLESHOOTING
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
Machine does not
start.
Possible Cause
Possible Solution
!
1. Power supply switched off/has
incorrect voltage.
1. Switch power supply on/verify voltage.
2. Blown fuse/tripped circuit breaker
at main panel.
2. Correct the cause of overload, then reset/replace
fuse or breaker.
3. Plug or receptacle is corroded or
mis-wired.
3. Clean/retighten contacts; correct the wiring.
4. Break or short in wiring; or loose
connections.
4. Trace/replace broken or corroded wires; fix loose
connections.
5. Motor wired incorrectly.
5. Wire motor correctly (refer to inside junction box
cover or manual).
6. Motor ON/OFF switch at fault.
6. Replace switch.
7. Start capacitor blown or at fault.
7. Replace start capacitor.
8. Centrifugal switch at fault.
8. Adjust/replace centrifugal switch.
9. Motor at fault.
9. Test for shorted windings, bad bearings and repair
or replace.
Main motor
chatters during
startup or during
operation.
1. Extension cord (if used) is causing
voltage drop.
1. Move machine closer to the power source or use a
larger gauge or shorter extension cord.
2. Power supply has incorrect voltage
on one or more legs.
2. Contact your power company to fix the power
supply.
Machine has
excessive vibration
or noise.
1. Blade is missing teeth.
1. Replace blade.
2. Guide post is loose.
2. Tighten the guide post.
3. Motor or table is loose.
3. Tighten any loose fasteners.
4. Machine incorrectly mounted on
floor.
4. Level/shim base; tighten/adjust mounting hardware
or feet.
5. Centrifugal switch out of
adjustment; at fault.
5. Adjust/replace centrifugal switch.
6. Air is in the hydraulic system,
causing the headstock to "hop".
6. Bleed hydraulic system.
7. Motor bearings worn or damaged.
7. Replace motor bearings or replace motor.
8. Wheel bearings are worn.
8. Replace wheel bearings.
-34-
For Machines Mfg. Since 8/09
Symptom
Motor stalls
or slows when
operating.
TROU B LESHOOTI NG
Possible Cause
Model SB1020
!
Possible Solution
1. Too much pressure when feeding
workpiece.
1. Reduce pressure when feeding workpiece.
2. Workpiece is warped and binding
blade.
2. Fabricate a jig for better workpiece control.
3. Blade is dull, wanders, and gets
pinched in the cut.
3. Replace blade, adjust guides and tracking.
4. Blade is loose.
4. Clean wheels and increase blade tension.
5. Blade is loading up.
5. Install a blade with more suitable TPI or different
style of teeth.
6. Blade is not correct for material
being cut.
6. Use the correct blade for the operation. Refer to
Blade Selection section beginning on Page 24.
7. Motor overheated.
7. Let cool, clean motor, and reduce workload.
8. Motor wired incorrectly.
8. Review wiring diagram on motor cover; correct wire
connections.
9. Motor at fault.
9. Test for shorted windings, bad bearings and repair
or replace.
Workpiece angle
incorrect or out of
square.
1. Scale not calibrated or loose vise.
1. Zero fence to blade and realign scale. Tighten any
loose fasteners.
2. Blade guides are loose or out of
alignment.
2. Tighten any loose hardware or lock levers. Align the
blade guides (see Page 28).
Blade tracks
incorrectly, slips on
wheels, or comes
off wheels.
1. Blade tension is too loose.
1. Increase blade tension (see Page 24).
2. Incorrect blade for bandsaw.
2. Install correct blade for machine (see Page 24).
3. Feed rate is too fast.
3. Reduce feed rate, or decrease blade TPI.
4. Blade guides need adjustment.
4. Adjust blade guides (see Page 40).
5. Blade is bell-mouthed.
5. Install new blade, and regularly remove tension
from blade when not in use.
6. Blade is dull, wanders, and gets
pinched in the cut.
6. Replace blade, re-secure the workpiece from
shifting.
7. Wheels are loaded with metal
shavings.
7. Clean wheels.
8. The blade has insufficient support.
8. Tighten the blade guide as close to the workpiece as
possible (not less than 1⁄4").
-35-
TROU B LESHOOTI NG
Model SB1020
For Machines Mfg. Since 8/09
Symptom
Possible Cause
The cut is crooked,
the blade wanders,
cuts slow, or shows
overheating on one
side of the cut or
the blade.
1. The feed rate/pressure is too high.
1. Decrease the feed rate/pressure (see Page 25).
2. Loose blade.
2. Keep blade properly tensioned (see Page 24).
3. Blade is loading up.
3. Install a blade with more suitable TPI or different
style of teeth.
4. Incorrect coolant mixture for
workpiece/cut.
4. Use correct coolant mixture (refer to coolant
manufacturer's recommended mixture).
5. Blade installed backwards.
5. Check blade rotation as described in “test run” and
reverse blade if necessary.
6. Dull blade; missing teeth.
6. Replace blade 23.
7. The blade speed is wrong.
7. Adjust feed rate and cutting speed as required (see
Page 25).
1. Blade is improperly broken in.
1. Replace blade, and complete blade break in
procedure (see Pages 23 & 24).
2. The blade gullets are loading up
with chips.
2. Use a blade that has larger gullets to carry out
material.
3. The blade TPI is too fine for the
workpiece, so the teeth load up and
overheat.
3. Use a coarser-tooth blade, adjust feed rate, adjust
blade speed, make sure the brush is working.
4. Incorrect coolant mixture for
workpiece/cut.
4. Use correct coolant mixture (refer to coolant
manufacturer's recommended mixture).
5. The workpiece has hard spots,
welds, or scale.
5. Replace the blade with a special blade for cutting
hardened materials.
Repetitive ticking
noise coming from
machine.
1. Blade is missing teeth.
1. Replace blade 23.
2. Blade weld contacting blade guides.
2. Grind blade weld down smaller.
3. Blade weld may be failing.
3. Cut and reweld the blade, or replace the blade.
Blade wears on
one side or shows
overheating.
1. The blade guides are worn or misadjusted.
1. Re-adjust or replace the blade guides.
2. The blade support is inadequate.
2. Tighten the blade guide as close to the workpiece as
possible.
3. Dull or incorrect blade.
3. Replace blade (see Page 23).
4. Incorrect coolant mixture for
workpiece/cut.
4. Use correct coolant mixture (refer to coolant
manufacturer's recommended mixture).
5. Blade is bell-mouthed.
5. Install new blade (see Page 23).
1. Loose or damaged blade.
1. Tighten or replace blade (see Pages 24 & 23).
2. Worn wheel bearing.
2. Check/replace wheel bearing.
3. Bent or dull blade.
3. Replace blade (see Page 23).
4. Loose machine component.
4. Tighten loose component.
5. Wheels worn or incorrectly
installed.
5. Replace wheels.
6. Bandsaw blade wheel appears bent.
6. Check and replace for bad wheel or bearing.
Blade dulls
prematurely, or
metal sticking to
the blade.
Vibration when
operating or
cutting.
-36-
Possible Solution
!
SERVICE
For Machines Mfg. Since 8/09
Model SB1020
SERVICE
Blade Brush
Angle Stops
The Model SB1020 has a blade brush to help
keep metal chips off the blade wheels. It will
wear over time and require re-adjustment when
it no longer contacts the blade.
The swivel base is equipped with three angle
stops to provide quick adjustments to 60° to the
left, 0°, and 45 to the right°. If cuts made using
these stops are not sufficiently accurate, the
stops will need to be adjusted.
Tools Needed
Qty
Hex Wrench 4mm.................................................. 1
To adjust the blade brush:
1. DISCONNECT BANDSAW FROM POWER!
2. Loosen the button head cap screws shown in
Figure 41.
Blade Brush
Tools Needed
Qty
Wrench 12mm........................................................ 1
To adjust the angle stops:
1. DISCONNECT BANDSAW FROM POWER!
2. Rotate the headstock to the right
approximately 10°, engage the 0° angle stop
(Figure 42) by flipping it up, then rotate the
headstock to the left until it stops against
the 0° stop. Tighten the headstock lock lever.
0° Stop Bolt
Button
Head Cap
Screws
Figure 41. Blade brush adjustments.
3. Slide the blade brush bracket as needed so
the blade extends approximately 1⁄8" into the
bristles of the brush. Hold the bracket in
position, then re-tighten the button head cap
screws.
Figure 42. 0° Angle stop.
3. Lower the headstock, then place a square
flat on the table and against both the
stationary jaw and the blade, as shown in
Figure 43.
Stationary Jaw
Movable
Jaw
Vise
Square
Blade
Figure 43. Testing vise/blade squareness.
-37-
SERVICE
Model SB1020
4. If the square does not fit snugly against both
the stationary jaw and the blade, loosen the
jam nut shown in Figure 44, then thread
the stop bolt inward.
Jam Nut
Stop Bolt
For Machines Mfg. Since 8/09
Limit Switches
The Model SB1020 is equipped with limit
switches that prevent the saw from operating
if the blade is not properly tensioned and stop
the saw motor when it reaches the end of a cut.
If either of these functions does not operate
correctly, you will need to adjust the appropriate
limit switch.
To adjust the blade tension switch:
1. DISCONNECT BANDSAW FROM POWER!
2. Tension the blade until the tension gauge
reads 20,000 PSI, which is the transition
from yellow to green.
Figure 44. Stop adjustment.
5. Loosen the headstock
Movable lock lever, rotate the
Jaw the blade is square to
headstock so that
the vise, then re-tighten the headstock lock
lever.
3. Use a 3mm hex wrench to loosen the two
button head cap screws that secure the blade
Stationary Jaw
tension switch bracket shown in Figure 46.
Button Head
Cap Screws
Blade
Tension
Switch
6. Adjust the stop bolt as needed
until it just
Vise
touches the cast iron swivel base, as shownSquare
in Figure 44, then snug the jam nut against
the stop block without turning the stop bolt.
Blade
7. Repeat this procedure for the 60° left and 45°
right stops using a 45° square and a 30°/60°
triangle (or an adjustable square), as shown
in Figure 45.
!
60° L
45° R
Switch Plate
Figure 46. Blade tension limit switch.
4. Slide the switch away from the switch plate
to make sure it releases, then slowly slide it
back towards the switch plate just until you
hear the switch click. Hold it in this position,
the re-tighten the button head cap screws.
5. Release tension from the blade. If the switch
does not immediately click again, signaling
that tension has been released, repeat Steps
3–4, slightly adjusting the switch away from
the switch plate.
Figure 45. 60° left and 45° right stop adjustment.
-38-
SERVICE
For Machines Mfg. Since 8/09
To adjust the headstock travel switch:
1. DISCONNECT BANDSAW FROM POWER!
Model SB1020
Downfeed Stop Bolt
2. Fully lower the headstock by opening the
downfeed valve. Allow it to come to a stop on
its own (see Downfeed Stop Bolt on this
page for more details).
The Model SB1020 has an adjustable stop bolt to
prevent the blade from contacting the table when
the headstock reaches the bottom of its travel. If
the blade contacts the table, or if the blade does
not travel far enough to complete the cut, this
bolt will have to be adjusted.
3. Loosen the Phillips head screws that secure
the blade travel limit switch shown in
Figure 46.
To adjust the downfeed stop bolt:
1. DISCONNECT BANDSAW FROM POWER!
2. Adjust the downfeed stop bolt and jam nut
shown in Figure 48 with a 14mm wrench, so
the bandsaw blade teeth are just below the
table surface when the cut is complete.
Phillip Head
Screws
3. Tighten the jam nut against the base to prevent the stop bolt from loosening during use.
Limit
Switch
Figure 47. Blade stop limit switch
(viewed from above).
4. Slide the switch away from the control panel
column to make sure it releases, then slowly
slide it back towards the column just until
you hear the switch click. Hold it in this
position, then re-tighten the Phillips head
screws.
5. Lift the headstock, then allow it to lower
on its own, adjusting the feed rate knob if
necessary. Listen for a click from the switch
when the headstock reaches the bottom of
its travel. If the switch does not click, repeat
Steps 3–4, slightly adjusting the switch
slightly towards the control panel column.
Downfeed Stop Bolt
Figure 48. Adjusting downfeed stop bolt.
-39-
SERVICE
Model SB1020
Squaring Blade
A blade that is perpendicular to the table surface
provides the best cutting results with minimal
side loading and blade wear. The blade is held
perpendicular to the table by the two blade
guides. Each guide is held in place by two cap
screws and aligned with the four set screws
shown in Figure 49.
Blade Guide
(1 of 2)
Set
Screws
Cap
Screws
Figure 49. Blade guide adjustments.
To square the blade to the table:
1. DISCONNECT BANDSAW FROM POWER!
2. Separate the blade guides as far as possible,
then lower the bandsaw all the way until it
contacts the downfeed stop bolt.
3. Place a square on the table bed and against
the edge of the blade, as shown in Figure
50, then check different points along the
length of the table between the blade guides.
Square
Blade
Table
Figure 50. Squaring the blade.
-40-
For Machines Mfg. Since 8/09
4. If the blade is not square to the table, loosen
the cap screws shown in Figure 49 one to
two turns. Remove the blade brush assembly
(refer to Page 37), then repeat for the second
blade guide.
—If the top of the blade tilts away from
the square, loosen the top two set screws
shown in Figure 49 and tighten the
bottom two set screws an equal amount
while keeping an eye on the blade
squareness (the amount you tighten and
loosen the screws depends on how far
from square the blade is). Repeat for the
second blade guide.
— If the bottom of the blade tilts away from
the square, tighten the top two set screws
shown in Figure 49 an equal amount and
loosen the bottom two set screws while
keeping an eye on the blade squareness
(the amount you tighten and loosen the
screws depends on how far from square
the blade is). Repeat for the second blade
guide.
5. Tighten the cap screws loosened in Step 4.
6. Repeat Steps 3–5 as necessary until the
blade is perfectly square to the table.
For Machines Mfg. Since 8/09
NOTES
Model SB1020
-41-
ELECTRICAL
Model SB1020
For Machines Mfg. Since 8/09
ELECTRICAL
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.
1.
2.
3.
4.
Shock Hazard: It is extremely dangerous to
perform electrical or wiring tasks while the
machine is connected to the power source.
Touching electrified parts will result in
personal injury including but not limited to
severe burns, electrocution, or death. For
your own safety, disconnect machine from
the power source before servicing electrical
components or performing any wiring tasks!
5.
Circuit Requirements: Connecting the
6.
Capacitors/Inverters: Some capacitors and
power inverters store an electrical charge for
up to 10 minutes after being disconnected
from the power source. To reduce the risk of
being shocked, wait at least this long before
working on capacitors.
7.
Wire/Component Damage: Damaged wires
8.
Experiencing Difficulties: If you are
experiencing difficulties understanding the
information included in this section, contact
our Technical Support at (360) 734-1540.
Wire Connections: All connections must be
tight to prevent wires from loosening during
machine operation. Double-check all wires
disconnected or connected during any wiring
task to ensure tight connections.
Modifications: Using aftermarket parts or
modifying the wiring beyond what is shown
in the diagram may lead to unpredictable
results, including serious injury or fire.
Motor Wiring: The motor wiring shown
in these diagrams is current at the time of
printing, but it may not match your machine.
Always use the wiring diagram inside the
motor junction box.
machine to an improperly sized circuit will
greatly increase the risk of fire. To minimize
this risk, only connect the machine to a
power circuit that meets the minimum
requirements given in this manual.
or components increase the risk of serio
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