Grizzly G9743 User manual

COPYRIGHT © MARCH, 2006 BY GRIZZLY INDUSTRIAL, INC., REVISED JUNE, 2023 (CS)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#PCBL7711 PRINTED IN TAIWAN V3.06.23
MODEL G9743
7" X 12" GEARHEAD
METAL-CUTTING BANDSAW
OWNER'S MANUAL
(For models manufactured since 10/23)
***Keep for Future Reference***

This manual provides critical safety instructions on the proper setup,
operation, maintenance, and service of this machine/tool. Save this
document, refer to it often, and use it to instruct other operators.
Failure to read, understand and follow the instructions in this manual
may result in fire or serious personal injury—including amputation,
electrocution, or death.
The owner of this machine/tool is solely responsible for its safe use.
This responsibility includes but is not limited to proper installation in
a safe environment, personnel training and usage authorization,
proper inspection and maintenance, manual availability and compre-
hension, application of safety devices, cutting/sanding/grinding tool
integrity, and the usage of personal protective equipment.
The manufacturer will not be held liable for injury or property damage
from negligence, improper training, machine modifications or misuse.
Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to the State
of California to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement and other masonry products.
• Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
Work in a well ventilated area, and work with approved safety equip-
ment, such as those dust masks that are specially designed to filter
out microscopic particles.

Table of Contents
INTRODUCTION............................................... 2
Contact Info.................................................... 2
Manual Accuracy ........................................... 2
Identification ................................................... 3
Controls & Components ................................. 4
Machine Data Sheet ...................................... 6
SECTION 1: SAFETY....................................... 8
Safety Instructions for Machinery .................. 8
Additional Safety for Horizontal Metal
Bandsaws .................................................... 10
SECTION 2: POWER SUPPLY ...................... 11
Converting Voltage to 220V ......................... 13
SECTION 3: SETUP ....................................... 15
Needed for Setup ......................................... 15
Unpacking .................................................... 15
Inventory ...................................................... 16
Hardware Recognition Chart ....................... 17
Cleanup ........................................................ 18
Site Considerations ...................................... 19
Assembly ..................................................... 20
Power Connection........................................ 22
Test Run ...................................................... 22
Recommended Adjustments ........................ 24
SECTION 4: OPERATIONS ........................... 25
Operation Overview ..................................... 25
Operation Tips ............................................. 26
Workpiece Inspection................................... 26
Using Vise .................................................... 27
Adjusting Work Stop .................................... 28
Selecting Blades .......................................... 28
Changing Blade ........................................... 30
Tensioning Blade ......................................... 32
Blade Breakage ........................................... 32
Blade Care & Break-In ................................. 33
Changing Blade Speed ................................ 33
Blade Speed Chart ...................................... 34
Chip Inspection Chart .................................. 35
Setting Blade Feed Rate.............................. 36
Adjusting Blade Guide Positions.................. 37
Cutting Fluid ................................................. 37
Cutting Fluid System .................................... 38
SECTION 5: ACCESSORIES......................... 39
SECTION 6: MAINTENANCE......................... 41
Schedule ...................................................... 41
Cleaning & Protecting .................................. 41
Lubrication ................................................... 41
Cutting Fluid System .................................... 44
SECTION 7: SERVICE ................................... 45
Troubleshooting ........................................... 45
Adjusting Blade Tracking ............................. 48
Squaring Blade to Table .............................. 50
Adjusting Blade Guides & Bearings ............ 51
Adjusting Blade Brush ................................. 52
Adjusting Downfeed Stop Bolt ..................... 52
SECTION 8: WIRING...................................... 54
Wiring Safety Instructions ............................ 54
Wiring Diagram (110V) ................................ 55
Wiring Diagram (220V) ................................ 56
Electrical Component Photos ...................... 57
SECTION 9: PARTS....................................... 59
Base/Stand .................................................. 59
Headstock .................................................... 61
Miscellaneous Assemblies ........................... 63
Gearbox ....................................................... 64
Electrical Box ............................................... 66
Labels & Cosmetics (Front) ......................... 67
Labels & Cosmetics (Rear) .......................... 68
WARRANTY & RETURNS ............................. 69

-2- Model G9743 (Mfd. Since 10/23)
We stand behind our machines! If you have ques-
tions or need help, contact us with the information
below. Before contacting, make sure you get the
serial number
and manufacture date
from the
machine ID label. This will help us help you faster.
Grizzly Technical Support
1815 W. Battlefield
Springfield, MO 65807
Phone: [phone]
Email: [email protected]
We want your feedback on this manual. What did
you like about it? Where could it be improved?
Please take a few minutes to give us feedback.
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Email: [email protected]
Contact Info
We are proud to provide a high-quality owner’s
manual with your new machine!
We
made every effort to be exact with the
instruc-
tions, specifications, drawings, and photographs
in this manual. Sometimes we make mistakes, but
our policy of continuous improvement also means
that
sometimes the machine
you receive is
slightly different than shown in the manual
.
If you find this to be the case, and the difference
between the manual and machine leaves you
confused or unsure about something
,
check our
website for an updated version. W
e post
current
manuals and
manual updates for free
on our web-
site at
www.grizzly.com.
Alternatively, you can call our Technical Support
for help. Before calling, make sure you write
down the
manufacture date and
serial number
from the machine ID label (see below). This
information is required for us to provide proper
tech support, and it helps us determine if updated
documentation is available for your machine.
Manufacture Date
Serial Number
Manual Accuracy
INTRODUCTION

Model G9743 (Mfd. Since 10/23) -3-
Identification
Become familiar with the names and locations of the controls and features shown below to better understand
the instructions in this manual.
For Your Own Safety Read Instruction Manual Before Operating Saw
a) Wear eye protection and respirator.
b) Do not remove jammed cutoff pieces until blade has stopped.
c) Maintain proper adjustment of blade tension, blade guides, and support bearings.
d) Adjust upper guide to just clear workpiece.
e) Properly support and secure workpiece with table, vise, or some type of support fixture.
Never hold workpiece with hands during cut.
Blade
Work Stop
Motor
Wheel
(1 of 2)
Blade Tension
Handle
Guide Post
Adjustment Knob
Control
Panel
Speed Control
Knob
Feed Rate
Dial
Bandsaw
Stand
Positive Lock
Handle
Blade Guides
Vise
Blade
Tracking
Controls
Downfeed
Limit Switch
Vise
Handwheel
Pump
ON/OFF
Switch
Feed On/Off
Valve
Cutting Fluid
Control Valve

-4- Model G9743 (Mfd. Since 10/23)
Controls &
Components
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
Refer to the following figures and descriptions to
become familiar with the basic controls and com-
ponents of this machine. Understanding these
items and how they work will help you understand
the rest of the manual and minimize your risk of
injury when operating this machine.
Headstock
Figure 1. Headstock controls and components.
A. Blade Tension Handle: Increases or
decreases blade tension.
B. Blade Tracking Controls: Adjust upper
blade wheel tilt to move blade toward or away
from wheel shoulder.
C. Cutting Fluid Control Valve: Adjusts cutting
fluid flow rate.
D. Blade Guides: Support blade. Adjust upper
blade guide as close to workpiece as pos-
sible to prevent blade from twisting.
E. Guide Post Adjustment Knob: Adjusts
upper blade guide that supports blade.
D
E
A
B
Vise
Figure 3. Vise controls and components.
J
I
H
G
G. Vise Handwheel: Adjusts movable vise jaw.
H. Positive Lock Handle: Opens vise jaws
enough to advance workpiece past blade
during repetitive cutting operations. Tightly
clamps jaws once movable vise jaw has been
adjusted to contact workpiece.
I. Movable Vise Jaw: Holds workpiece against
rear vise jaw during cutting operation.
J. Rear Vise Jaw: Adjusts workpiece angle
relative to blade.
K. Work Stop: Supports repetitive cutting
operations.
K
Figure 2. Location of speed control knob.
F. Speed Control Knob: Adjusts blade speed
to 148, 216, or 282 FPM.
F
C

Model G9743 (Mfd. Since 10/23) -5-
Power Controls
Figure 6. Control panel components.
P. ON Button: Starts saw blade.
Q. Emergency Stop Button: Stops all machine
functions. Twist clockwise to reset.
R. Pump ON/OFF Switch: Turns coolant pump
ON when moved up and OFF when moved
down.
Downfeed
Figure 4. Feed controls.
P
L
M
L. Feed Rate Dial: Adjusts feed rate between
levels 1–9. Increases feed rate when turned
counterclockwise and decreases feed rate
when turned clockwise.
M. Feed On/Off Valve: Opens to lower head-
stock until it contacts downfeed stop bolt;
closes to stop headstock from lowering.
N. Downfeed Stop Bolt: Stops headstock from
lowering farther than completion of cut.
O. Downfeed Limit Switch: Turns machine
OFF when headstock is fully lowered and
switch is engaged.
Figure 5. Other downfeed components.
N
O
Figure 7. Location of circuit breaker reset button.
S
S. Circuit Breaker Reset Button: Allows motor
to be restarted after thermal overload protec-
tion has tripped. To reset, turn motor OFF,
wait a few minutes for motor to cool, then
press reset button. If button does not stay
depressed, allow motor to cool longer, then
try again.
Q
R

-6- Model G9743 (Mfd. Since 10/23)
The information contained herein is deemed accurate as of 6/9/2023 and represents our most recent product specifications.
Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. PAGE 1 OF 3
Model G9743
MACHINE DATA
SHEET
Customer Service #: [phone] · To Order Call: [phone] · Fax #: [phone]
MODEL G9743 7" X 12" 1‐1/2 HP GEARHEAD METAL‐
CUTTING BANDSAW
Product Dimensions:
Weight.............................................................................................................................................................. 391 lbs.
Width (side-to-side) x Depth (front-to-back) x Height..................................................................... 56 x 17-1/2 x 59 in.
Footprint (Length x Width)..................................................................................................................... 40 x 16-1/2 in.
Shipping Dimensions:
Type................................................................................................................................................... Wood Slat Crate
Content........................................................................................................................................................... Machine
Weight.............................................................................................................................................................. 467 lbs.
Length x Width x Height....................................................................................................................... 58 x 23 x 54 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement............................................................................................. 110V or 220V, Single-Phase, 60 Hz
Prewired Voltage.................................................................................................................................................. 110V
Full-Load Current Rating............................................................................................... 23.6A at 110V, 11.8A at 220V
Minimum Circuit Size.......................................................................................................... 30A at 110V, 15A at 220V
Connection Type................................................................................................................................ Cord Connected
Power Cord Included.............................................................................................................................................. Yes
Power Cord Length.............................................................................................................................................. 70 in.
Power Cord Gauge......................................................................................................................................... 12 AWG
Plug Included........................................................................................................................................................... No
Recommended Plug Type............................................................................................. L5-30 for 110V, 6-15 for 220V
Switch Type....................................................................................................... ON Button w/Automatic Shut-Off Tab
Motors:
Main
Horsepower............................................................................................................................................. 1.5 HP
Phase............................................................................................................................................ Single-Phase
Amps.................................................................................................................................................. 23A/11.5A
Speed................................................................................................................................................ 1720 RPM
Type................................................................................................................. TEFC Capacitor-Start Induction
Power Transfer ................................................................................................................................. Gear Drive
Bearings..................................................................................................... Shielded & Permanently Lubricated
Centrifugal Switch/Contacts Type......................................................................................................... External
Coolant Pump
Horsepower................................................................................................................................................. 53W
Phase............................................................................................................................................ Single-Phase
Amps................................................................................................................................................... 0.6A/0.3A
Speed................................................................................................................................................ 3440 RPM
Type......................................................................................................................................... Sealed Induction
Power Transfer ............................................................................................................................... Direct Drive
Bearings........................................................................................................ Sealed & Permanently Lubricated
Machine Data Sheet
MODEL G9743
7" X 12" GEARHEAD METAL-CUTTING BANDSAW

Model G9743 (Mfd. Since 10/23) -7-
The information contained herein is deemed accurate as of 6/9/2023 and represents our most recent product specifications.
Due to our ongoing improvement efforts, this information may not accurately describe items previously purchased. PAGE 2 OF 3
Model G9743
Main Specifications:
Operation Info
Blade Speeds....................................................................................................................... 148, 216, 282 FPM
Std. Blade Length.............................................................................................................................. 104-1/2 in.
Std. Blade Width.......................................................................................................................................... 1 in.
Cutting Capacities
Angle Cuts....................................................................................................................................... 45 - 90 deg.
Vise Jaw Depth...................................................................................................................................... 9-3/4 in.
Vise Jaw Height........................................................................................................................................... 5 in.
Max. Capacity Rectangular Height at 90 Deg.............................................................................................. 7 in.
Max. Capacity Rectangular Width at 90 Deg............................................................................................. 12 in.
Max. Capacity Round at 90 Deg.................................................................................................................. 9 in.
Max. Capacity Rectangular Height at 30 Deg.............................................................................................. 8 in.
Max. Capacity Rectangular Width at 30 Deg............................................................................................. 10 in.
Max. Capacity Round at 30 Deg................................................................................................................ 10 in.
Max. Capacity Rectangular Height at 45 Deg.............................................................................................. 4 in.
Max. Capacity Rectangular Width at 45 Deg............................................................................................... 8 in.
Max. Capacity Round at 45 Deg.................................................................................................................. 6 in.
Construction
Table....................................................................................................................... Precision Ground Cast Iron
Upper Wheel....................................................................................................................... Machined Cast Iron
Lower Wheel....................................................................................................................... Machined Cast Iron
Body..................................................................................................................................................... Cast Iron
Base.......................................................................................... Formed and Welded Steel with Coolant Sump
Wheel Cover............................................................................................................................ Pre-formed Steel
Paint Type/Finish...................................................................................................................................... Epoxy
Other
Wheel Size.......................................................................................................................................... 12-1/2 in.
Blade Guides Upper............................................................................................................. Adjustable Carbide
Blade Guides Lower............................................................................................................. Adjustable Carbide
Coolant Capacity................................................................................................................................ 2-1/2 GAL
Table Info
Table Size Length...................................................................................................................................... 18 in.
Table Size Width................................................................................................................................... 7-3/4 in.
Floor To Cutting Area Height............................................................................................................... 21-5/8 in.
Other Specifications:
Country of Origin .............................................................................................................................................. Taiwan
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time ........................................................................................................ 45 Minutes
Serial Number Location .................................................................................................................................. ID Label
Sound Rating ..................................................................................................................................................... 80 dB
ISO 9001 Factory .................................................................................................................................................. Yes

-8- Model G9743 (Mfd. Since 10/23)
ELECTRICAL EQUIPMENT INJURY RISKS.
You can be shocked, burned, or killed by touching
live electrical components or improperly grounded
machinery. To reduce this risk, only allow qualified
service personnel to do electrical installation or
repair work, and always disconnect power before
accessing or exposing electrical equipment.
DISCONNECT POWER FIRST.
Always discon-
nect machine from power supply BEFORE mak-
ing adjustments, changing tooling, or servicing
machine. This prevents an injury risk from unin-
tended startup or contact with live electrical com-
ponents.
EYE PROTECTION. Always wear ANSI-approved
safety glasses or a face shield when operating or
observing machinery to reduce the risk of eye
injury or blindness from flying particles. Everyday
eyeglasses are NOT approved safety glasses.
OWNER’S MANUAL. Read and understand this
owner’s manual BEFORE using machine.
TRAINED OPERATORS ONLY. Untrained oper-
ators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine. When machine is not being used, dis-
connect power, remove switch keys, or lock-out
machine to prevent unauthorized use—especially
around children. Make your workshop kid proof!
DANGEROUS ENVIRONMENTS. Do not use
machinery in areas that are wet, cluttered, or have
poor lighting. Operating machinery in these areas
greatly increases the risk of accidents and injury.
MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of machin-
ery. Never operate under the influence of drugs or
alcohol, when tired, or when distracted.
For Your Own Safety, Read Instruction
Manual Before Operating This Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions.
This manual uses a series of symbols and signal words intended to convey the level of impor-
tance of the safety messages. The progression of symbols is described below. Remember that
safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures. Always use common sense and good judgment.
Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Alerts the user to useful information about proper operation of the
machine to avoid machine damage.
NOTICE
Safety Instructions for Machinery
SECTION 1: SAFETY

Model G9743 (Mfd. Since 10/23) -9-
WEARING PROPER APPAREL. Do not wear
clothing, apparel or jewelry that can become
entangled in moving parts. Always tie back or
cover long hair. Wear non-slip footwear to reduce
risk of slipping and losing control or accidentally
contacting cutting tool or moving parts.
HAZARDOUS DUST. Dust created by machinery
operations may cause cancer, birth defects, or
long-term respiratory damage. Be aware of dust
hazards associated with each workpiece mate-
rial. Always wear a NIOSH-approved respirator to
reduce your risk.
HEARING PROTECTION. Always wear hear-
ing protection when operating or observing loud
machinery. Extended exposure to this noise
without hearing protection can cause permanent
hearing loss.
REMOVE ADJUSTING TOOLS. Tools left on
machinery can become dangerous projectiles
upon startup. Never leave chuck keys, wrenches,
or any other tools on machine. Always verify
removal before starting!
USE CORRECT TOOL FOR THE JOB. Only use
this tool for its intended purpose—do not force
it or an attachment to do a job for which it was
not designed. Never make unapproved modifica-
tions—modifying tool or using it differently than
intended may result in malfunction or mechanical
failure that can lead to personal injury or death!
AWKWARD POSITIONS. Keep proper footing
and balance at all times when operating machine.
Do not overreach! Avoid awkward hand positions
that make workpiece control difficult or increase
the risk of accidental injury.
CHILDREN & BYSTANDERS. Keep children and
bystanders at a safe distance from the work area.
Stop using machine if they become a distraction.
GUARDS & COVERS. Guards and covers reduce
accidental contact with moving parts or flying
debris. Make sure they are properly installed,
undamaged, and working correctly BEFORE
operating machine.
FORCING MACHINERY. Do not force machine.
It will do the job safer and better at the rate for
which it was designed.
NEVER STAND ON MACHINE. Serious injury
may occur if machine is tipped or if the cutting
tool is unintentionally contacted.
STABLE MACHINE. Unexpected movement dur-
ing operation greatly increases risk of injury or
loss of control. Before starting, verify machine is
stable and mobile base (if used) is locked.
USE RECOMMENDED ACCESSORIES. Consult
this owner’s manual or the manufacturer for rec-
ommended accessories. Using improper acces-
sories will increase the risk of serious injury.
UNATTENDED OPERATION. To reduce the
risk of accidental injury, turn machine OFF and
ensure all moving parts completely stop before
walking away. Never leave machine running
while unattended.
MAINTAIN WITH CARE. Follow all maintenance
instructions and lubrication schedules to keep
machine in good working condition. A machine
that is improperly maintained could malfunction,
leading to serious personal injury or death.
DAMAGED PARTS. Regularly inspect machine
for damaged, loose, or mis-adjusted parts—or
any condition that could affect safe operation.
Immediately repair/replace BEFORE operating
machine. For your own safety, DO NOT operate
machine with damaged parts!
MAINTAIN POWER CORDS. When disconnect-
ing cord-connected machines from power, grab
and pull the plug—NOT the cord. Pulling the cord
may damage the wires inside. Do not handle
cord/plug with wet hands. Avoid cord damage by
keeping it away from heated surfaces, high traffic
areas, harsh chemicals, and wet/damp locations.
EXPERIENCING DIFFICULTIES. If at any time
you experience difficulties performing the intend-
ed operation, stop using the machine! Contact our
Technical Support at [phone].

-10- Model G9743 (Mfd. Since 10/23)
Additional Safety for
Horizontal Metal Bandsaws
Serious injury or death can occur from getting fingers, hair, or clothing entangled in rotating or
moving parts or making direct contact with the moving blade. To minimize risk of injury, anyone
operating this machine MUST completely heed hazards and warnings below.
WORKPIECE HANDLING. Always properly sup-
port workpiece with table, vise, or some type of
support fixture. Always secure workpiece in vise
before cutting. Never hold the workpiece with your
hands during a cut.
UNSTABLE WORKPIECES. Avoid cutting work-
pieces that cannot be properly supported or
clamped in a vise or jig, because they can unex-
pectedly move while cutting and draw the opera-
tor’s hands into the blade causing serious per-
sonal injury. Examples are chains, cables, round
or oblong-shaped workpieces, and those with
internal or built-in moving or rotating parts, etc.
FIRE HAZARD. Use EXTREME CAUTION if cut-
ting magnesium. Using the wrong cutting fluid
could lead to chip fire and possible explosion.
CUTTING FLUID SAFETY. Cutting fluids are
poisonous. Always follow manufacturer’s cutting-
fluid safety instructions. Pay particular attention
to contact, contamination, inhalation, storage and
disposal warnings. Spilled cutting fluid invites slip-
ping hazards.
BLADE CONDITION. Do not operate with dull,
cracked, or badly worn blade. Inspect blades for
cracks and missing teeth before each use.
HAND PLACEMENT. Never position hands or fin-
gers in line with the cut or under bandsaw head-
stock while lowering or operating. Hands could be
cut or crushed.
BLADE GUARD POSITION. Adjust blade guard
as close to workpiece as possible before cutting
to minimize operator exposure to unused portion
of blade.
ENTANGLEMENT HAZARDS. Do not operate
this saw without blade guard in place. Loose
clothing, jewelry, long hair and work gloves can be
drawn into working parts.
BLADE REPLACEMENT. When replacing
blades, disconnect the machine from power, wear
gloves to protect hands and safety glasses to
protect eyes.
HOT SURFACES. Contact with hot surfaces from
machine components, ejections of hot chips,
swarf, and the workpiece itself can cause burns.
No list of safety guidelines can be com-
plete. Every shop environment is different.
Always consider safety first, as it applies
to your individual working conditions. Use
this and other machinery with caution and
respect. Failure to do so could result in
serious personal injury, damage to equip-
ment, or poor work results.
Like all machinery there is potential danger
when operating this machine. Accidents
are frequently caused by lack of familiarity
or failure to pay attention. Use this machine
with respect and caution to decrease the
risk of operator injury. If normal safety pre-
cautions are overlooked or ignored, seri-
ous personal injury may occur.

Model G9743 (Mfd. Since 10/23) -11-
SECTION 2: POWER SUPPLY
Availability
Before installing the machine, consider the avail-
ability 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 an electrician or
qualified service personnel in accordance with all
applicable codes and standards.
Electrocution, fire, shock,
or equipment damage
may occur if machine is
not properly grounded
and connected to power
supply.
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 Current Rating at 110V... 23.6 Amps
Full-Load Current Rating at 220V .. 11.8 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 over-
loading the machine during operation and make
sure it is connected to a power supply circuit that
meets the specified circuit requirements.
For your own safety and protection of
property, consult an electrician if you are
unsure about wiring practices or electrical
codes in your area.
Note: Circuit requirements in this manual apply to
a dedicated circuit—where only one machine will
be running on the circuit at a time. If machine will
be connected to a shared circuit where multiple
machines may be running at the same time, con-
sult an electrician or qualified service personnel to
ensure circuit is properly sized for safe operation.
A power supply circuit includes all electrical
equipment between the breaker box or fuse panel
in the building and the machine. The power sup-
ply circuit used for this machine must be sized to
safely handle the full-load current drawn from the
machine for an extended period of time. (If this
machine is connected to a circuit protected by
fuses, use a time delay fuse marked D.)
Circuit Information
Circuit Requirements for 220V
Nominal Voltage ......... 208V, 220V, 230V, 240V
Cycle ..........................................................60 Hz
Phase ........................................... Single-Phase
Power Supply Circuit ......................... 15 Amps
Plug/Receptacle ............................. NEMA 6-15
This machine can be converted to operate on a
power supply circuit that has a verified ground
and meets the requirements listed below. (Refer
to Voltage Conversion instructions for details.)
This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following requirements:
Circuit Requirements for 110V
Nominal Voltage .................... 110V, 115V, 120V
Cycle ..........................................................60 Hz
Phase ........................................... Single-Phase
Power Supply Circuit ......................... 30 Amps
Plug/Receptacle ...........................NEMA L5-30

-12- Model G9743 (Mfd. Since 10/23)
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 nec-
essary, do not connect the equipment-grounding
wire to a live (current carrying) terminal.
Check with a qualified electrician or service per-
sonnel 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, discon-
nect it from power, and immediately replace it with
a new one.
Extension Cords
We do not recommend using an extension cord
with this machine.
If you must use an extension
cord, only use it if absolutely necessary and only
on a temporary basis.
Extension cords cause voltage drop, which can
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).
Any extension cord used with this machine must
be in good condition and contain a ground wire
and matching plug/receptacle. Additionally, it must
meet the following size requirements:
Minimum Gauge Size (110V)................10 AWG
Minimum Gauge Size (220V)...............16 AWG
Maximum Length (Shorter is Better).......50 ft.
Grounding Requirements
This machine MUST be grounded. In the event
of certain malfunctions or breakdowns, grounding
reduces the risk of electric shock by providing a
path of least resistance for electric current.
Figure 8. Typical L5-30 plug and receptacle.
Figure 9. Typical 6-15 plug and receptacle.
Grounding Pin
Current Carrying Prongs
6-15 PLUG
GROUNDED
6-15 RECEPTACLE
For 220V operation: The plug specified under
“
Circuit Requirements for 220V” on the previous
page has a grounding prong that must be attached
to the equipment-grounding wire on the included
power cord. The plug must only be inserted into
a matching receptacle (see following figure) that
is properly installed and grounded in accordance
with all local codes and ordinances.
No adapter should be used with plug. If
plug does not fit available receptacle, or if
machine must be reconnected for use on a
different type of circuit, reconnection must
be performed by an electrician or qualified
service personnel, and it must comply with
all local codes and ordinances.
Grounding Prong
is Hooked
Hot
Neutral
L5-30 GROUNDED
LOCKING
RECEPTACLE
L5-30
LOCKING
PLUG
The power cord and plug specified under “Circuit
Requirements for 110V” on the previous page
has an equipment-grounding wire and a ground-
ing prong. 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 (see figure below).

Model G9743 (Mfd. Since 10/23) -13-
Converting Voltage
to 220V
The voltage conversion MUST be performed by
an electrician or qualified service personnel.
The voltage conversion procedure consists of
rewiring the main and coolant motors, replac-
ing the circuit breaker, rewiring the transformer,
replacing the overload relay, and installing the
correct plug. Wiring diagrams are provided in
the WIRING section, beginning on Page 54, for
reference.
IMPORTANT: If the diagram included on either
motor conflicts with the one in the WIRING sec-
tion, the motor may have changed since the
manual was printed. Use the diagram included on
the applicable motor junction box cover instead.
Items Needed Qty
Phillips Head Screwdriver #2 ............................ 1
Wire Nut (14AWG x 3) ....................................... 1
Electrical Tape ................................... As Needed
Circuit Breaker 12A (P9743300V4-10X) ............. 1
Wrench or Socket 5⁄16" ....................................... 1
Overload Relay TECO
RHU-10/12.5K1 (P9743261V5-10X).................... 1
Wire Stripper ..................................................... 1
Plug 6-15 ........................................................... 1
To convert Model G9743 to 220V:
1. DISCONNECT MACHINE FROM POWER!
2. Open main motor junction box.
3. Remove wire nuts on main motor, as indi-
cated in Figure 10.
Figure 10. Location of wire nuts to remove.
Start Capacitor
150MFD
250VAC
Pump ON/OFF Switch
Downfeed
Limit Switch
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
Ground
1
4
3
4
07N
N
N
Prewired for 110V
Main Electrical Box
2
24.526
28
30A
Rewired for 220V
U1
2
4
V1
V1
Circuit Breaker
3
1
LINE LOAD
Ground
U1
4
V1
V1
Circuit Breaker
KUOYUH
98 SERIES 12A
3
1
LINE LOAD
2
13 14
31 32
KUOYUH
98 SERIES 25A
SHINOZAKI
AZD-1000
01
U2
V2
U2
V2
Prewired for 110V
Rewired for 220V
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
Neutral
Hot
Ground
110 VAC
5-15 Plug
(Prewired)
6-15 Plug
(Rewired)
220
VAC
G
Hot
Ground
Hot
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
L
L
Thermal
Overload
Relay
TECO
RHU-10/30K2
Contactor
TECO
CU-18
Fuse 2A
MAIN MOTOR
PUMP MOTOR
(Rewired for 220V)
(Rewired for 220V)
(Rewired for 220V)
(Prewired) (Rewired)
SCI R13-25A
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
1
4
3
4
07N
N
N
Main Electrical Box
2
9
10
12
12.5A
U2
V2
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
Thermal
Overload
Relay
TECO
RHU-10/12.5K1
Contactor
TECO
CU-18
Fuse 2A
(Prewired) (Rewired)
L
Remove
Remove
4. Connect main motor wires with wire nuts, as
shown in Figure 11. Once snug, wrap electri-
cal tape around each wire nut and connected
wires to reduce likelihood of wire nut vibrating
loose during motor operation.
5. Replace pre-installed 25A circuit breaker with
a 12A circuit breaker (see Figure 11).
Start Capacitor
150MFD
250VAC
Pump ON/OFF Switch
Downfeed
Limit Switch
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
Ground
1
4
3
4
07N
N
N
Prewired for 110V
Main Electrical Box
2
24.526
28
30A
Rewired for 220V
U1
2
4
V1
V1
Circuit Breaker
3
1
LINE LOAD
Ground
U1
4
V1
V1
Circuit Breaker
KUOYUH
98 SERIES 12A
3
1
LINE LOAD
2
13 14
31 32
KUOYUH
98 SERIES 25A
SHINOZAKI
AZD-1000
01
U2
V2
U2
V2
Prewired for 110V
Rewired for 220V
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
Neutral
Hot
Ground
110 VAC
5-15 Plug
(Prewired)
6-15 Plug
(Rewired)
220
VAC
G
Hot
Ground
Hot
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
L
L
Thermal
Overload
Relay
TECO
RHU-10/30K2
Contactor
TECO
CU-18
Fuse 2A
MAIN MOTOR
PUMP MOTOR
(Rewired for 220V)
(Rewired for 220V)
(Rewired for 220V)
(Prewired) (Rewired)
SCI R13-25A
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
1
4
3
4
07N
N
N
Main Electrical Box
2
9
10
12
12.5A
U2
V2
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
Thermal
Overload
Relay
TECO
RHU-10/12.5K1
Contactor
TECO
CU-18
Fuse 2A
(Prewired) (Rewired)
L
12A Breaker
Figure 11. Main motor rewired for 220V
operation.
6. Close and secure main motor junction box.
7. Open pump motor junction box.

-14- Model G9743 (Mfd. Since 10/23)
8. Remove center terminal nut on pump motor,
as indicated in Figure 12.
Start Capacitor
150MFD
250VAC
Pump ON/OFF Switch
Downfeed
Limit Switch
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
Ground
1
4
3
4
07N
N
N
Prewired for 110V
Main Electrical Box
2
24.526
28
30A
Rewired for 220V
U1
2
4
V1
V1
Circuit Breaker
3
1
LINE LOAD
Ground
U1
4
V1
V1
Circuit Breaker
KUOYUH
98 SERIES 12A
3
1
LINE LOAD
2
13 14
31 32
KUOYUH
98 SERIES 25A
SHINOZAKI
AZD-1000
01
U2
V2
U2
V2
Prewired for 110V
Rewired for 220V
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
Neutral
Hot
Ground
110 VAC
5-15 Plug
(Prewired)
6-15 Plug
(Rewired)
220
VAC
G
Hot
Ground
Hot
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
L
L
Thermal
Overload
Relay
TECO
RHU-10/30K2
Contactor
TECO
CU-18
Fuse 2A
MAIN MOTOR
PUMP MOTOR
(Rewired for 220V)
(Rewired for 220V)
(Rewired for 220V)
(Prewired) (Rewired)
SCI R13-25A
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
1
4
3
4
07N
N
N
Main Electrical Box
2
9
10
12
12.5A
U2
V2
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
Thermal
Overload
Relay
TECO
RHU-10/12.5K1
Contactor
TECO
CU-18
Fuse 2A
(Prewired) (Rewired)
L
Figure 12. Location of terminal nut to remove.
Remove
9. Connect incoming white wire to same ter-
minal as red pump motor wire, as shown in
Figure 13, with hex nut from Step 8.
Figure 13. Pump motor wires connected for
220V operation.
10. Close and secure pump motor junction box.
11. Open electrical box.
12. Move black L wire on transformer from 110V
terminal to 220V terminal (see Figure 14).
Start Capacitor
150MFD
250VAC
Pump ON/OFF Switch
Downfeed
Limit Switch
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
Ground
1
4
3
4
07N
N
N
Prewired for 110V
Main Electrical Box
2
24.526
28
30A
Rewired for 220V
U1
2
4
V1
V1
Circuit Breaker
3
1
LINE LOAD
Ground
U1
4
V1
V1
Circuit Breaker
KUOYUH
98 SERIES 12A
3
1
LINE LOAD
2
13 14
31 32
KUOYUH
98 SERIES 25A
SHINOZAKI
AZD-1000
01
U2
V2
U2
V2
Prewired for 110V
Rewired for 220V
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
Neutral
Hot
Ground
110 VAC
5-15 Plug
(Prewired)
6-15 Plug
(Rewired)
220
VAC
G
Hot
Ground
Hot
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
L
L
Thermal
Overload
Relay
TECO
RHU-10/30K2
Contactor
TECO
CU-18
Fuse 2A
MAIN MOTOR
PUMP MOTOR
(Rewired for 220V)
(Rewired for 220V)
(Rewired for 220V)
(Prewired) (Rewired)
SCI R13-25A
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
1
4
3
4
07N
N
N
Main Electrical Box
2
9
10
12
12.5A
U2
V2
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
Thermal
Overload
Relay
TECO
RHU-10/12.5K1
Contactor
TECO
CU-18
Fuse 2A
(Prewired) (Rewired)
L
Start Capacitor
150MFD
250VAC
Pump ON/OFF Switch
Downfeed
Limit Switch
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
Ground
1
4
3
4
07N
N
N
Prewired for 110V
Main Electrical Box
2
24.526
28
30A
Rewired for 220V
U1
2
4
V1
V1
Circuit Breaker
3
1
LINE LOAD
Ground
U1
4
V1
V1
Circuit Breaker
KUOYUH
98 SERIES 12A
3
1
LINE LOAD
2
13 14
31 32
KUOYUH
98 SERIES 25A
SHINOZAKI
AZD-1000
01
U2
V2
U2
V2
Prewired for 110V
Rewired for 220V
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
Neutral
Hot
Ground
110 VAC
5-15 Plug
(Prewired)
6-15 Plug
(Rewired)
220
VAC
G
Hot
Ground
Hot
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
L
L
Thermal
Overload
Relay
TECO
RHU-10/30K2
Contactor
TECO
CU-18
Fuse 2A
MAIN MOTOR
PUMP MOTOR
(Rewired for 220V)
(Rewired for 220V)
(Rewired for 220V)
(Prewired) (Rewired)
SCI R13-25A
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
1
4
3
4
07N
N
N
Main Electrical Box
2
9
10
12
12.5A
U2
V2
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
Thermal
Overload
Relay
TECO
RHU-10/12.5K1
Contactor
TECO
CU-18
Fuse 2A
(Prewired) (Rewired)
L
Figure 14. Location of transformer 110V and
220V terminals.
Move Black L
Wire Here
14. Close and secure electrical box.
15. Install 6-15 plug at end of cord, according to
instructions and wiring diagrams provided by
plug manufacturer.
— If plug manufacturer did not include instruc-
tions, wiring of generic NEMA 6-15 plug is
illustrated on Page 56.
13. Remove overload relay, replace it with RHU-
10/12.5K1 (9-12.5A) relay (see Figure 15),
and set dial to 11.8A.
Start Capacitor
150MFD
250VAC
Pump ON/OFF Switch
Downfeed
Limit Switch
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
Ground
1
4
3
4
07N
N
N
Prewired for 110V
Main Electrical Box
2
24.526
28
30A
Rewired for 220V
U1
2
4
V1
V1
Circuit Breaker
3
1
LINE LOAD
Ground
U1
4
V1
V1
Circuit Breaker
KUOYUH
98 SERIES 12A
3
1
LINE LOAD
2
13 14
31 32
KUOYUH
98 SERIES 25A
SHINOZAKI
AZD-1000
01
U2
V2
U2
V2
Prewired for 110V
Rewired for 220V
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
Neutral
Hot
Ground
110 VAC
5-15 Plug
(Prewired)
6-15 Plug
(Rewired)
220
VAC
G
Hot
Ground
Hot
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
L
L
Thermal
Overload
Relay
TECO
RHU-10/30K2
Contactor
TECO
CU-18
Fuse 2A
MAIN MOTOR
PUMP MOTOR
(Rewired for 220V)
(Rewired for 220V)
(Rewired for 220V)
(Prewired) (Rewired)
SCI R13-25A
Transformer
97NO 98NO
2T1 6T34T2
95NC 96NC
2T1 6T34T2
1L1
0V 110V
5L33L2
Ground
1
4
3
4
07N
N
N
Main Electrical Box
2
9
10
12
12.5A
U2
V2
TBSM RF-017
Ground
1
0
4
Ground
V1
V2
U2
U1
Ground
4
32
U1
V1
1UF
120 Ohm
7
220V
L
L
Thermal
Overload
Relay
TECO
RHU-10/12.5K1
Contactor
TECO
CU-18
Fuse 2A
(Prewired) (Rewired)
L
Figure 15. Overload relay installed and adjusted
for 220V operation.

Model G9743 (Mfd. Since 10/23) -15-
SECTION 3: SETUP
This machine presents
serious injury hazards
to untrained users. Read
through this entire manu-
al to become familiar with
the controls and opera-
tions before starting the
machine!
Wear safety glasses during
the entire setup process!
HEAVY LIFT!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
get help from other people
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
Description Qty
• Disposable Rags ........................ As Needed
• Cleaner/Degreaser ..................... As Needed
• Safety Glasses (for each person) ..........1 Pr.
• Disposable Gloves ..................... As Needed
• Wrench or Socket 10mm ............................ 1
• Wrenches or Sockets 12mm ...................... 2
• Open-End Wrench 14mm, 3⁄4", 20mm ..1 Ea.
• Round Steel Bar Stock (1⁄2" x 3') ................ 2
• Lifting Slings (Rated for at least 500 lbs.) .. 2
• Lifting Equipment
(Rated for at least 500 lbs.) ........................ 1
• Another Person .......................................... 1
• Wooden Blocks .......................... As Needed
• Cutting Fluid ..................................... 21⁄2 gal.
• Bucket 3-gal. .............................................. 1
• L5-30 Plug .................................................. 1
Needed for Setup
The following items are needed, but not included,
for the setup/assembly of this machine.
This machine was carefully packaged for safe
transport. When unpacking, separate all enclosed
items from packaging materials and inspect them
for shipping damage.
If items are damaged
,
please
call us immediately at [phone].
IMPORTANT:
Save all packaging materials until
you are completely satisfied with the machine and
have resolved any issues between Grizzly or the
shipping agent. You MUST have the original pack-
aging to file a freight claim. It is also extremely
helpful if you need to return your machine later.
Unpacking

-16 - Model G9743 (Mfd. Since 10/23)
NOTICE
If you cannot find an item on this list, care-
fully check around/inside the machine and
packaging materials. Often, these items get
lost in packaging materials while unpack-
ing or they are pre-installed at the factory.
Box Contents (Figure 16) Qty
A. Handle ........................................................ 1
B. Drain Tube 3⁄4" x 153⁄4" ................................ 1
C. Leveling Feet .............................................. 2
D. Wheels ....................................................... 2
E. Work Stop Rod ........................................... 1
F. Work Stop w/Thumb Screw ........................ 1
G. Axle ............................................................ 1
Inventory
The following is a list of items shipped with your
machine. Before beginning setup, lay these items
out and inventory them.
If any non-proprietary parts are missing (e.g. a
nut or a washer), we will gladly replace them; or
for the sake of expediency, replacements can be
obtained at your local hardware store.
Hardware Bag (Not Shown) Qty
H. Flat Washers 5⁄8" (Wheels) ......................... 4
I. Cotter Pins 3 x 25mm (Wheels) ................. 2
J. Hex Nuts 1⁄2"-12 (Feet) ................................ 2
K. Hex Bolts 5⁄16"-18 x 11⁄2" (Handle) ................ 4
L. Flat Washers 5⁄16" (Handle) ......................... 8
M. Hex Nuts 5⁄16"-18 (Handle) .......................... 4 Figure 16. Box contents.
A
C
D
F
E
G
B

Model G9743 (Mfd. Since 10/23) -17-
Hardware Recognition Chart
USE THIS CHART TO MATCH UP
HARDWARE DURING THE INVENTORY
AND ASSEMBLY PROCESS.
5mm
5mm
Flat
Head
Cap
Screw

-18- Model G9743 (Mfd. Since 10/23)
Cleanup
T23692—Orange Power Degreaser
A great product for removing the waxy ship-
ping grease from the non-painted parts of the
machine during clean up.
Order online at
www.grizzly.com
OR
Call 1-800-523-4777
The unpainted surfaces of your machine are
coated with a heavy-duty rust preventative that
prevents corrosion during shipment and storage.
This rust preventative works extremely well, but it
will take a little time to clean.
Be patient and do a thorough job cleaning your
machine. The time you spend doing this now will
give you a better appreciation for the proper care
of your machine's unpainted surfaces.
There are many ways to remove this rust preven-
tative, but the following steps work well in a wide
variety of situations. Always follow the manufac-
turer’s instructions with any cleaning product you
use and make sure you work in a well-ventilated
area to minimize exposure to toxic fumes.
Before cleaning, gather the following:
• Disposable rags
• Cleaner/degreaser (WD•40 works well)
• Safety glasses & disposable gloves
• Plastic paint scraper (optional)
Basic steps for removing rust preventative:
1.
Put on safety glasses.
2.
Coat the rust preventative with a liberal
amount of cleaner/degreaser, then let it soak
for 5–10 minutes.
3.
Wipe off the surfaces. If your cleaner/degreas-
er is effective, the rust preventative will wipe
off easily. If you have a plastic paint scraper,
scrape off as much as you can first, then wipe
off the rest with the rag.
4.
Repeat Steps 2–3 as necessary until clean,
then coat all unpainted surfaces with a quality
metal protectant to prevent rust.
Gasoline and petroleum
products have low flash
points and can explode
or cause fire if used to
clean machinery. Avoid
using these products
to clean machinery.
Many cleaning solvents
are toxic if inhaled. Only
work in a well-ventilated
area.
NOTICE
Avoid harsh solvents like acetone or brake
parts cleaner that may damage painted sur-
faces. Always test on a small, inconspicu-
ous location first.
Cleanup
Figure 17. T23692 Orange Power Degreaser.