Grizzly T31739 User guide

Page 1
MODEL T31739
12" VARIABLE-SPEED
BENCHTOP DRILL PRESS
(For models manufactured since 11/23)
COPYRIGHT © JANUARY, 2020 BY GRIZZLY INDUSTRIAL, INC., REVISED NOVEMBER, 2023 (BL)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#CS20663 PRINTED IN CHINA
V2 .11. 2 3
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This manual provides critical safety instructions on the proper setup, operation, maintenance, and service of this machine/tool. Save this document, refer to it often, and use it to instruct other operators.
Failure to read, understand and follow the instructions in this manual may result in fire or serious personal injury—including amputation, electrocution, or death.
The owner of this machine/tool is solely responsible for its safe use. This responsibility includes but is not limited to proper installation in a safe environment, personnel training and usage authorization, proper inspection and maintenance, manual availability and compre­hension, application of safety devices, cutting/sanding/grinding tool integrity, and the usage of personal protective equipment.
The manufacturer will not be held liable for injury or property damage from negligence, improper training, machine modifications or misuse.
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are:
Lead from lead-based paints.
Crystalline silica from bricks, cement and other masonry products.
Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce your exposure to these chemicals: Work in a well ventilated area, and work with approved safety equip­ment, such as those dust masks that are specially designed to filter out microscopic particles.
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Table of Contents
INTRODUCTION ............................................... 2
Contact Info Manual Accuracy Identification Controls & Components Machine Data Sheet
SECTION 1: SAFETY
Safety Instructions for Machinery Additional Safety for Drill Presses
SECTION 2: POWER SUPPLY
SECTION 3: SETUP
Needed for Setup Unpacking Inventory Hardware Recognition Chart Cleanup Site Considerations Bench Mounting Assembly Joining Drill Chuck & Arbor Test Run
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SECTION 5: ACCESSORIES
SECTION 6: MAINTENANCE
Schedule Cleaning & Protecting Lubrication
SECTION 7: SERVICE
Troubleshooting V-Belt Tension & Replacement Calibrating Depth Stop Replacing Lasers & LED Worklight Adjusting Spring Tension
SECTION 8: WIRING
Wiring Safety Instructions Wiring Diagram
SECTION 9: PARTS
Main Labels & Cosmetics
WARRANTY & RETURNS
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SECTION 4: OPERATIONS
Operation Overview Choosing Spindle Speeds Changing Spindle Speed Installing/Removing Chuck Arbor Installing/Removing Drill Bits Using LED Worklight Adjusting Depth Stop Positioning Table Adjusting Laser Sight
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We stand behind our machines! If you have ques­tions or need help, contact us with the information below. Before contacting, make sure you get the
serial number
from the
machine ID label. This will help us help you faster.
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.
Email: manuals@grizzly.com
We are proud to provide a high-quality owner’s manual with your new machine!
We
instruc­tions, specifications, drawings, and photographs in this manual. Sometimes we make mistakes, but our policy of continuous improvement also means that
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
current
manuals and
on our web-
site at
Alternatively, you can call our Technical Support for help. Before calling, make sure you write down the
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.

INTRODUCTION

Contact Info

and manufacture date
Grizzly Technical Support
1815 W. Battlefield Springfield, MO 65807 Phone: (570) 546-9663
Email: techsupport@grizzly.com
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069

Manual Accuracy

made every effort to be exact with the
sometimes the machine
.
,
e post
manual updates for free
www.grizzly.com.
manufacture date and
Manufacture Date
Serial Number
-2-
Model T31739 (Mfd. Since 11/23)
Page 5

Identification

Become familiar with the names and locations of the controls and features shown below to better understand the instructions in this manual.
Belt Cover
Digital
Readout
Depth Stop
Scale
Adjustable
Depth Stop
Emergency
Stop Button
Laser & Light
Switches
Spindle
Column
Base
Spindle Speed
Quill
Rack
Workpiece
Support
Crank Handle
Motor
Lever
Return Spring
Table Height Lock Handle
Table Height
ON/OFF
Buttons
Downfeed
Handle
Spindle
Chuck
Table
Table Pivot
Lock Handle
For Your Own Safety Read Instruction Manual Before Operating Drill Press
a) Wear eye protection. b) Do not wear gloves, necktie, or loose clothing. c) Clamp workpiece or brace against column to prevent rotation. d) Use recommended speed for drill accessory and workpiece material.
Model T31739 (Mfd. Since 11/23)
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Page 6
Controls &
To reduce your risk of serious injury, read this entire manual BEFORE
Table
Components
using machine.
Refer to the following figures and descriptions to become familiar with the basic controls and com­ponents 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
Adjustable
Depth Stop
Depth Scale
Workpiece
Support
Table Pivot
Lock Handle
Figure 2. Table controls.
Workpiece Support: Provides extra support for
long workpieces.
Table Height Crank Handle: Adjusts table height.
Table Pivot Lock Handle: Locks table to keep it
from rotating.
Workpiece Support Lock Knob (1 of 2): Locks support arm in position.
Workpiece
Support
Lock Knob
Table Height
Crank Handle
Spindle Speed
Lever
Spindle
Return Spring
Downfeed Handle
Figure 1. Headstock controls.
Adjustable Depth Stop: Stops spindle travel at
predetermined depth.
Depth Scale: Indicates drilling depth and position of depth stop.
Downfeed Handles: Moves spindle down when pulled down. Spindle automatically returns to top position when released.
Spindle Speed Lever: Adjusts spindle speed rate from 400 to 2700 RPM.
Quill
Control Panel
Emergency
Stop Button
ON/OFF Buttons
LED ON/OFF
Switch
Figure 3. Control panel.
Emergency Stop Button: Immediately cuts
power to motor and control panel when pressed. Twist button clockwise to reset.
ON/OFF Buttons: Turns drill press ON and OFF.
LED ON/OFF Switch: Turns work light ON or
OFF.
Digital
Readout
Laser
ON/OFF
Switch
Spindle Return Spring: Automatically returns quill into headstock.
Quill: Houses spindle and spindle bearings.
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Digital Readout: Displays spindle RPM.
Laser ON/OFF Switch: Turns laser sights ON or
OFF.
Model T31739 (Mfd. Since 11/23)
Page 7

Machine Data Sheet

MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL T31739 12" VARIABLE‐SPEED BENCHTOP DRILL
Product Dimensions:
Weight................................................................................................................................................................ 88 lbs.
Width (side-to-side) x Depth (front-to-back) x Height........................................................................... 13 x 22 x 36 in.
Footprint (Length x Width)....................................................................................................................... 16 x 9-1/2 in.
Shipping Dimensions:
Type..................................................................................................................................................... Cardboard Box
Content........................................................................................................................................................... Machine
Weight................................................................................................................................................................ 93 lbs.
Length x Width x Height....................................................................................................................... 30 x 20 x 12 in.
Electrical:
Power Requirement........................................................................................................... 120V, Single-Phase, 60 Hz
Full-Load Current Rating....................................................................................................................................... 5.1A
Minimum Circuit Size.............................................................................................................................................. 15A
Connection Type....................................................................................................................................... Cord & Plug
Power Cord Included.............................................................................................................................................. Yes
Power Cord Length................................................................................................................................................. 6 ft.
Power Cord Gauge......................................................................................................................................... 18 AWG
Plug Included.......................................................................................................................................................... Yes
Included Plug Type................................................................................................................................................ 5-15
Switch Type................................................................................................................................ ON/OFF Push Button
Motors:
Main
MODEL T31739 12" VARIABLE-SPEED
BENCHTOP DRILL PRESS
PRESS WITH LASER
Horsepower............................................................................................................................................. 1/3 HP
Phase............................................................................................................................................ Single-Phase
Amps........................................................................................................................................................... 5.1A
Speed................................................................................................................................................ 1150 RPM
Type.................................................................................................................. TEFC Capacitor-Run Induction
Power Transfer ............................................................................................................................................ Belt
Bearings..................................................................................................... Shielded & Permanently Lubricated
Main Specifications:
Operation Information
Type......................................................................................................................................................... Bench
Swing......................................................................................................................................................... 12 in.
Spindle Taper............................................................................................................................................ MT#2
Spindle Travel........................................................................................................................................ 3-1/2 in.
Max. Distance From Spindle to Column...................................................................................................... 6 in.
Max. Distance From Spindle to Table................................................................................................. 13-1/4 in.
Number of Spindle Speeds................................................................................................................... Variable
Range of Spindle Speeds......................................................................................................... 400 - 2700 RPM
Max. Head Swivel................................................................................................................................. 360 deg.
Drilling Capacity (Mild Steel)..................................................................................................................... 5/8 in.
Drill Chuck Type.................................................................................................................. JT3 Keyless Chuck
Drill Chuck Size.............................................................................................................................. 1/32 - 5/8 in.
Model T31739 (Mfd. Since 11/23)
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Spindle Information
Distance From Spindle to Base........................................................................................................... 20-1/4 in.
Quill Diameter....................................................................................................................................... 1.575 in.
Table Information
Max. Table Tilt (Left/Right)..................................................................................................................... 45 deg.
Table Swing.......................................................................................................................................... 360 deg.
Table Swivel Around Center................................................................................................................. 360 deg.
Table Swivel Around Column............................................................................................................... 360 deg.
Table Length.......................................................................................................................................... 9-5/8 in.
Table Width........................................................................................................................................... 9-5/8 in.
Table Thickness........................................................................................................................................... 1 in.
Vertical Table Travel.................................................................................................................................. 10 in.
Number of T-Slots............................................................................................................................................ 4
T-Slot Size................................................................................................................................................ 1/2 in.
T-Slot Centers.............................................................................................................................................. 3 in.
Floor-To-Table Height.............................................................................................................. 8-7/8 - 18-7/8 in.
Construction
Table....................................................................................................................... Precision-Ground Cast Iron
Column....................................................................................................................................................... Steel
Spindle Housing................................................................................................................................... Cast Iron
Head.................................................................................................................................................... Cast Iron
Base..................................................................................................................................................... Cast Iron
Paint Type/Finish....................................................................................................................... Powder Coated
Other Related Information
Base Length........................................................................................................................................ 16-1/4 in.
Base Width............................................................................................................................................ 9-5/8 in.
Column Diameter................................................................................................................................... 2-3/8 in.
Depth Stop Type............................................................................................ Threaded Rod with Positive Stop
Has Work Light............................................................................................................................................. Yes
Light Socket Type...................................................................................................................... 3.5V, LED Bulb
Maximum Bulb Wattage............................................................................................................................... 1 W
Other Specifications:
Country of Origin ................................................................................................................................................ China
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time ........................................................................................................ 45 Minutes
Serial Number Location .................................................................................................................................. ID Label
ISO 9001 Factory .................................................................................................................................................. Yes
Features:
Adjustable Laser Sight Four 1/2" T-Slots Variable-Speed Spindle Control from 400 - 2700 RPM Precision-Ground Cast-Iron Table w/7-1/4" Extension LED Worklight Spindle Speed Digital Readout Depth Stop 0-90mm w/Quick-Release Rack & Pinion Table Elevation Control
Accessories Included:
Hex Wrenches 3, 4, 5mm Drift Key
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Model T31739 (Mfd. Since 11/23)
Page 9

SECTION 1: SAFETY

For Your Own Safety, Read Instruction
Manual Before Operating This Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions. This manual uses a series of symbols and signal words intended to convey the level of impor­tance of the safety messages. The progression of symbols is described below. Remember that safety messages by themselves do not eliminate danger and are not a substitute for proper accident prevention measures. Always use common sense and good judgment.
Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided, MAY result in minor or moderate injury. It may also be used to alert against unsafe practices.
Alerts the user to useful information about proper operation of the
NOTICE
machine to avoid machine damage.

Safety Instructions for Machinery

OWNER’S MANUAL. Read and understand this
owner’s manual BEFORE using machine.
TRAINED OPERATORS ONLY. Untrained oper­ators have a higher risk of being hurt or killed. Only allow trained/supervised people to use this machine. When machine is not being used, dis­connect 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 machin­ery. Never operate under the influence of drugs or alcohol, when tired, or when distracted.
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. nect machine from power supply BEFORE mak­ing adjustments, changing tooling, or servicing machine. This prevents an injury risk from unin­tended startup or contact with live electrical com­ponents.
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.
Always discon-
Model T31739 (Mfd. Since 11/23)
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Page 10
may damage the wires inside. Do not handle
WEARING PROPER APPAREL. Do not wear loose clothing, gloves, neckties, 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 mate­rial. Always wear a NIOSH-approved respirator to reduce your risk.
HEARING PROTECTION. Always wear hear­ing 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 modifica­tions—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 dur­ing 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 acces­sories 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 disconnect­ing cord-connected machines from power, grab and pull the plug—NOT the cord. Pulling the cord
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 intend­ed operation, stop using the machine! Contact our Technical Support at (570) 546-9663.
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Model T31739 (Mfd. Since 11/23)
Page 11

Additional Safety for Drill Presses

To avoid loss of drilling control or bit breakage, only drill into a flat surface that is approximately perpendicular to
Serious injury or death can occur from getting clothing, jewelry, or long hair entangled in rotating spindle or bit/cutting tool. Contact with rotating bit/cutting tool can result in severe cuts or amputation of fingers. Flying metal chips can cause blindness or eye injuries. Broken bits/ cutting tools, unsecured workpieces, chuck keys, or other adjustment tools thrown from rotating spindle can strike nearby operator or bystanders with deadly force. To reduce the risk of these hazards, operator and bystanders MUST completely heed hazards and warnings below.
EYE/FACE/HAND PROTECTION. Flying chips
created by drilling can cause eye injuries or blind­ness. Always wear a face shield in addition to safety glasses. Always keep hands and fingers away from drill bit/cutting tool. Avoid awkward hand positions, where a sudden slip could cause hand to move into bit/cutting tool.
AVOIDING ENTANGLEMENT. DO NOT wear loose clothing, gloves, or jewelry. Tie back long hair. Keep all guards in place and secure. Always allow spindle to stop on its own. DO NOT stop spindle using your hand or any other object.
REMOVING ADJUSTMENT TOOLS. Chuck key, wrenches, and other tools left on machine can become deadly projectiles when spindle is started. Remove all loose items or tools used on spindle immediately after use.
CORRECT SPINDLE SPEED. Using wrong spin­dle speed can cause bits/cutting tools to break and strike operator or bystanders. Follow recom­mended speeds and feeds for each size/type of bit/cutting tool and workpiece material.
SECURING BIT/CUTTING TOOL. Firmly secure bit/cutting tool in chuck so it cannot fly out of spindle during operation or startup.
DRILLING PREPARATION.
bit. Clear table of all objects before starting spin­dle. Never start spindle with bit pressed against workpiece.
SECURING TABLE AND HEADSTOCK. To avoid loss of control leading to bit breakage or accidental contact with tool/bit, tighten all table and head­stock locks before operating drill press.
WORKPIECE CONTROL. An unsecured work­piece may unexpectedly shift, spin out of con­trol, or be thrown if bit/cutting tool “grabs” during operation. Clamp workpiece to table or in table­mounted vise, or brace against column to prevent rotation. NEVER hold workpiece by hand during operation. NEVER start machine with bit/cutting tool touching workpiece; allow spindle to gain full speed before drilling into workpiece.
INSPECTING BIT/CUTTING TOOL. Damaged bits/cutting tools may break apart during operation and hit operator or bystanders. Dull bits/cutting tools increase cutting resistance and are more likely to grab and spin/throw workpiece. Always inspect bits/cutting tools for sharpness, chips, or cracks before each use. Replace dull, chipped, or cracked bits/cutting tools immediately.
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 pre­cautions are overlooked or ignored, seri­ous personal injury may occur.
Model T31739 (Mfd. Since 11/23)
No list of safety guidelines can be com­plete. 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 equip­ment, or poor work results.
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Page 12

SECTION 2: POWER SUPPLY

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 an electrician or qualified service personnel in accordance with all applicable codes and standards.
or equipment damage may occur if machine is not properly grounded and connected to power
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.
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 specified circuit requirements.
For your own safety and protection of
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, con­sult 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 sup­ply 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.)
This machine is prewired to operate on a power supply circuit that has a verified ground and meets the following requirements:
Availability
Electrocution, fire, shock,
Serious injury could occur if you connect machine to power before completing setup process. DO NOT connect to power until instructed later in this manual.
120V Circuit Requirements
Nominal Voltage .................... 110V, 115V, 120V
..........................................................60 Hz
Cycle Phase Power Supply Circuit
........................................... Single-Phase
......................... 15 Amps
supply.
Full-Load Current Rating
Full-Load Current Rating at 120V .... 5.1 Amps
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property, consult an electrician if you are unsure about wiring practices or electrical codes in your area.
Model T31739 (Mfd. Since 11/23)
Page 13
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 equipment-grounding 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
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:
Grounding & Plug Requirements
Two-prong outlets do not meet the grounding requirements for this machine.
provided—if it will not fit the outlet, have a
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.
This machine is equipped with a power cord that has an equipment-grounding wire and a grounding plug. Only insert plug into a matching receptacle (outlet) that is properly installed and grounded in accordance with all local codes and ordinances. DO NOT modify the provided plug!
GROUNDED
5-15 RECEPTACLE
Grounding Pin
5-15 PLUG
Extension Cords
Neutral Hot
Figure 4. Typical 5-15 plug and receptacle.
SHOCK HAZARD!
Do not modify or use an adapter on the plug
qualified electrician install the proper outlet with a verified ground.
Model T31739 (Mfd. Since 11/23)
Minimum Gauge Size ........................... 16 AWG
Maximum Length (Shorter is Better)
.......50 ft.
-11-
Page 14

SECTION 3: SETUP

This machine was carefully packaged for safe transport. When unpacking, separate all enclosed items from packaging materials and inspect them for shipping damage.
,
please
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.
The following items are needed, but not included, for the setup/assembly of this machine.
This machine and its components are very heavy. Get lifting help or
ment such as a forklift to

Needed for Setup

This machine presents serious injury hazards to untrained users. Read through this entire manu­al to become familiar with the controls and opera­tions before starting the machine!
Wear safety glasses during the entire setup process!
Description Qty
Safety Glasses (for each person) ............... 1
• Solvent/Cleaner .......................................... 1
Shop Rags .................................................. 1
Lifting Equipment
(Rated for at least 100 lbs.) ........................ 1
Assistant for Lifting ..................................... 1
Plumb Bob .................................................. 1
• Ruler ........................................................... 1

Unpacking

use power lifting equip-
move heavy items.
If items are damaged
call us immediately at (570) 546-9663.
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Model T31739 (Mfd. Since 11/23)
Page 15

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.
B
A
D
C
NOTICE
If you cannot find an item on this list, care­fully check around/inside the machine and packaging materials. Often, these items get lost in packaging materials while unpack­ing or they are pre-installed at the factory.
Box 1 (Figure 5) Qty
A. Table Assembly .......................................... 1
B. Headstock Assembly .................................. 1
C. Downfeed Handles ..................................... 3
D. Speed Lever ............................................... 1
E. Column Assembly ...................................... 1
F. Chuck 1⁄32"-5⁄8" JT3 Keyless ........................ 1
G. Chuck Arbor JT3 x MT2 ............................. 1
H. Table Lock Handles .................................... 2
I. Table Height Crank Handle ........................ 1
J. Drift Key ...................................................... 1
K. Hex Wrenches 3, 4, 5mm .....................1 Ea.
L. Hex Bolts M8-1.25 x 20 .............................. 4
M. Base ........................................................... 1
E
F
Figure 5. T31739 loose parts inventory.
G
J
K
L
H
M
I
Model T31739 (Mfd. Since 11/23)
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Page 16

Hardware Recognition Chart

USE THIS CHART TO MATCH UP HARDWARE DURING THE INVENTORY AND ASSEMBLY PROCESS.
Flat Head Cap Screw
-14-
5mm
5mm
Model T31739 (Mfd. Since 11/23)
Page 17

Cleanup Site Considerations

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 preven­tative, 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.
2. Coat the rust preventative with a liberal
amount of cleaner/degreaser, then let it soak
3.
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
4.
as necessary until clean,
then coat all unpainted surfaces with a quality
or disable start switch or
Refer to the Machine Data Sheet for the weight and footprint specifications of your machine. Some workbenches may require additional rein­forcement to support the weight of the machine and workpiece materials.
Consider anticipated workpiece sizes and addi­tional space needed for auxiliary stands, work tables, or other machinery when establishing a location for this machine in the shop. Below is the minimum amount of space needed for the machine.
Workbench Load
Placement Location
22"
13"
Put on safety glasses.
for 5–10 minutes.
Wipe off the surfaces. If your cleaner/degreas-
off the rest with the rag.
Repeat Steps 2–3
metal protectant to prevent rust.
NOTICE
Avoid harsh solvents like acetone or brake parts cleaner that may damage painted sur­faces. Always test on a small, inconspicu­ous location first.
Model T31739 (Mfd. Since 11/23)
= Electrical Connection
Figure 6. Minimum working clearances.
Children and visitors may be seriously injured if unsuper­vised around this machine. Lock entrances to the shop
power connection to prevent unsupervised use.
-15-
Page 18

Bench Mounting

Another option is a "direct mount" (see example below) where the machine is secured directly to the workbench with lag screws and washers.
The base of this machine has mounting holes that allow it to be fastened to a workbench or other mounting surface to prevent it from moving during operation and causing accidental injury or damage.
The strongest mounting option is a "Through Mount" (see example below) where holes are drilled all the way through the workbench—and hex bolts, washers, and hex nuts are used to secure the machine in place.
The machine must be fully assembled before it can be operated. Before beginning the assembly process, refer to
and gather
all
To ensure the assembly process
goes smoothly, first clean any
cov­ered or coated in heavy-duty rust preventative (if applicable).

Assembly

Number of Mounting Holes Diameter of Mounting Hardware Needed
Machine Base
Workbench
............................ 4
Hex Bolt
Flat Washer
..1⁄2"
Needed for Setup
listed items.
parts that are
To assemble machine:
Attach column to base using (4) M8-1.25 x 20
1.
hex bolts (see Figure 9).
x 4
Figure 9. Column attached to base.
Flat Washer
Lock Washer
-16-
Figure 7. "Through Mount" setup.
Machine Base
Workbench
Figure 8. "Direct Mount" setup.
Hex Nut
Lag Screw
Flat Washer
The headstock is very heavy. You MUST have assistance when moving, lifting, or mounting the headstock on the column and base assembly.
2. Lift headstock and fit it onto top of column (see Figure 10).
Figure 10. Headstock placed on column.
Model T31739 (Mfd. Since 11/23)
Page 19
3. Suspend a plumb bob from center of
headstock spindle so it is over tape/ruler, as shown in Figure 11.
4. Center headstock directly over base
as indicated by plumb bob and ruler (see Figure 11).
Figure 11. Example of using plumb bob to align
headstock to base.
Attach table height crank handle to table arm
6.
(see Figure 13) and secure by tightening pre-installed set screw against worm shaft.
Table Arm
Figure 13. Table height crank handle attached to
table arm.
7. Thread (1) table height lock handle into worm gear housing cartridge (see Figure 14) and tighten until table arm will not move.
Worm Shaft
5. Tighten (2) pre-installed set screws to secure headstock to column (see Figure 12).
x 2
Figure 12. Location of set screws that secure
headstock to column.
Table Height Lock Handle
Table Arm
Worm Gear
Housing
Figure 14. Table height lock handle inserted into
cartridge.
Install table into table mounting arm (see
8. Figure 15).
Model T31739 (Mfd. Since 11/23)
Table Mounting
Arm
Figure 15. Table installed into table arm.
-17-
Page 20
5. Attempt to separate drill chuck and arbor by hand —if they separate, repeat Steps 3–4.
9. Thread (1) table pivot lock handle into table mounting arm cartridge (see Figure 16) and tighten until table is secure.
Table Pivot
Lock Handle
Table Mounting
Arm
Figure 16. Table secured with table pivot lock
handle.
Joining Drill Chuck
& Arbor
An arbor is included for the drill chuck that comes with this machine. The following procedure describes how to install the arbor in the chuck.
After the arbor is installed in the drill chuck, it is very difficult to separate the assembly. If you would like to use a different chuck in the future, we recommend obtaining a new arbor.
IMPORTANT: DO NOT install the drill chuck and arbor assembly into the spindle until AFTER the test run.
10. Thread (3) downfeed handles into downfeed hub, as shown in Figure 17.
Downfeed
Handle
Figure 17. Downfeed handles installed in hub.
11. Thread spindle speed lever into speed
adjustment hub (see Figure 18).
Speed Adjustment
Hub
Hub
To join drill chuck and arbor:
1. Use acetone or lacquer thinner to clean drill
chuck and arbor mating surfaces, especially the bore.
2. Retract chuck jaws completely into chuck.
3. Insert small end of arbor into chuck.
4. Hold assembly by the arbor and tap chuck
onto a block of wood with medium force, as illustrated below.
Spindle Speed
Lever
Figure 18. Spindle speed lever installed.
-18-
Figure 19. Tapping drill chuck/arbor on block of
wood.
Model T31739 (Mfd. Since 11/23)
Page 21

Test Run

Once assembly is complete, test run the machine to ensure it is properly connected to power and safety components are functioning correctly.
If you find an unusual problem during the test run, immediately stop the machine, disconnect it from power, and fix the problem BEFORE operating the machine again. The
table in the
SERVICE section of this manual can help.
DO NOT start machine until all preceding setup instructions have been performed. Operating an improperly set up machine
ed results that can lead to serious injury,
Serious injury or death can result from
Troubleshooting
The Test Run consists of verifying the following:
1) The motor powers up and runs correctly, and
2) the emergency stop disabling mechanism
works correctly.
using this machine BEFORE understanding its controls and related safety information. DO NOT operate, or allow others to operate, machine until the information is understood.
To test run machine:
1. Clear all setup tools away from machine.
2. Press Emergency Stop button in.
3. Connect machine to power by inserting power
cord plug into a matching receptacle.
Note: The speed digital readout will not
illuminate until Step 4 is completed.
Twist Emergency Stop button clockwise until
4.
it springs out (see Figure 20). This resets the switch so the machine can start.
Figure 20. Resetting the switch.
Press green ON button (–) to turn machine
5.
ON. Verify motor starts up and runs smoothly without any unusual problems or noises.
may result in malfunction or unexpect-
death, or machine/property damage.
Model T31739 (Mfd. Since 11/23)
Adjust spindle speed throughout full speed
6. range (see Changing Spindle Speed on Page 22).
Press Emergency Stop button to turn machine
7.
OFF.
WITHOUT resetting Emergency Stop button,
8.
try to start machine by pressing the ON but­ton. The machine should not start.
— If the machine does not start, the safety
feature of the Emergency Stop button is working correctly. Congratulations! The Test Run is complete.
— If the machine does start, immediately
turn it OFF and disconnect power. The safety feature of the Emergency Stop but­ton is NOT working properly and must be replaced before further using the machine.
-19-
Page 22

SECTION 4: OPERATIONS

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 the
discussed
later in this manual
Due to the generic nature of this overview, it is not intended to be an instructional guide. To learn more about specific operations, read this entire manual,
training from experienced machine operators, and do additional research outside of this manual by reading "how-to" books, trade magazines, or websites.
To reduce your risk of serious injury, read this entire manual BEFORE
Keep hair, clothing, and
ing parts at all times. Entanglement can result in death, amputation, or
using machine.
To reduce risk of eye or face injury from flying chips, always wear approved safety glasses and a face shield when operating this machine.

Operation Overview

machine controls/components
are easier to understand.
seek additional
To complete a typical operation, the operator does the following:
jewelry away from mov-
severe crushing injuries!
If you are not experienced with this type of machine, WE STRONGLY RECOMMEND that you seek additional training outside of this manual. Read books/magazines or get formal training before beginning any proj­ects. Regardless of the content in this sec­tion, Grizzly Industrial will not be held liable for accidents caused by lack of training.
1. Examines workpiece to make sure it is suit-
able for drilling.
Puts on required safety glasses and face
2.
shield.
Firmly secures workpiece to table using a
3.
vise or T-slot clamps.
Installs correct drill bit for operation.
4.
Adjusts table to correct height, then locks it in
5.
place.
Selects appropriate spindle speed according
6.
to drill bit speed chart located on Page 21.
Connects machine to power, and turns
7.
machine ON.
Performs drilling operation.
8.
When finished, turns machine OFF and dis-
9.
connects it from power.
-20-
Model T31739 (Mfd. Since 11/23)
Page 23

Choosing Spindle Speeds

Using Drill Bit Speed Chart
The chart shown in Figure 21 is intended as a generic guide only. Always follow the manufac­turer's speed recommendations if provided with your drill bits, cutters, or hole saws. Exceeding the recommended speeds may be dangerous to the operator.
The speeds shown here are intended to get you started. The optimum speed will always depend on various factors, including tool diameter, drilling pressure, material hardness, material quality, and desired finish.
Often, when drilling materials other than wood, some type of lubrication is necessary.
Lubrication Suggestions
Wood ...........................................................None
Plastics Brass Aluminum Mild Steel
Larger bits turning at slower speeds tend to grab workpiece aggressively. This can result in operator's hand being pulled into bit or workpiece being thrown with great force. Always clamp workpiece to table to prevent reduce risk of injury.
............................................Soapy Water
...............................Water-Based Lubricant
..................... Paraffin-Based Lubricant
............................. Oil-Based Lubricant
Model T31739 (Mfd. Since 11/23)
Figure 21. Drill bit speed chart (RPMs).
-21-
Page 24
Changing Spindle
Installing/Removing
Speed
The Model T31739 has a variable-speed spin­dle that operates between 400-2700 RPM. This speed range is achieved using an adjustable pul­ley system that is controlled by moving the spindle speed lever shown in Figure 22.
The digital readout on the front of the headstock displays the spindle RPM. Pull the spindle speed lever forward to increase spindle speed. Push the lever backward to decrease spindle speed.
Note: Spindle speed can only be adjusted when the spindle is running.
Speed
Digital Readout
Chuck Arbor
Usually, once the chuck and arbor have been properly mounted together, they are considered semi-permanent connections. If you would like to install a different chuck, we recommend getting a new arbor for that chuck.
Installing Drill Chuck and Arbor
1. DISCONNECT MACHINE FROM POWER!
2. Rotate chuck on arbor until chuck jaws retract
into drill chuck body.
. Slide arbor into spindle socket while slowly
3
rotating chuck to line up tang on arbor with slot in socket (see Figure 23).
Spindle Speed
Lever
Figure 22. Spindle speed lever and DRO.
Spindle Socket
Arbor Tang
Figure 23. Spindle, arbor, and chuck.
. Strike face of chuck from below with rubber-
4
faced mallet to seat arbor in spindle.
. Check seat by gently pulling down on chuck.
5
Scan this code to see a video of the above process!
-22-
Model T31739 (Mfd. Since 11/23)
Page 25
Removing Drill Chuck Arbor
The arbor can be removed to install other Morse Taper #2 tooling in the spindle. A drift key is included to help remove the arbor or other tooling from the spindle.
5. Rotate spindle until inner drift key slot is aligned with outer slot (see Figure 26). You will see through the spindle when the slot is properly aligned.
Items Needed Qty
Metal Hammer ................................................... 1
Towel or Cloth
To remove drill chuck arbor:
1. DISCONNECT MACHINE FROM POWER!
2. Rotate downfeed handles until drift key slot is
exposed in side of quill (see Figure 24).
Drift Key
.................................... As Needed
Slot
Both Slots
Aligned
Figure 26.
6. Insert drift key into drift key slot, and allow
quill to rise, trapping drift key.
7. Tap drift key with a metal hammer (see Figure 27) until chuck releases.
Inner and outer drift key slots aligned.
Figure 24. Drift key slot exposed.
3.
Adjust feed return stop nut shown in Figure
25 so it touches stop bracket. The quill should
not return up into the head casting when depth stop is adjusted this way.
Return Stop
Nut
Figure 25. Feed return stop nut location.
Move table up until it is 1⁄4" below bottom of
4.
chuck, and place a towel or cloth under the chuck.
Stop Bracket
Figure 27. Using drift key to remove arbor from
spindle.
8.
Hold downfeed handle with one hand, and
adjust feed return stop back to bottom of depth stop with the other hand.
9.
Carefully retract the quill into the headstock.
Model T31739 (Mfd. Since 11/23)
-23-
Page 26
Installing/Removing
Adjusting Depth
Drill Bits
Any drill bit you install in the chuck must be tight enough that it will not come loose during operation. With a keyless chuck like the one that comes on the T31739, no chuck key is necessary for tightening or loosening.
Installing a Drill Bit
1. DISCONNECT MACHINE FROM POWER!
2. Turn drill chuck counterclockwise on arbor to
open jaws enough to accept shank of drill bit.
Insert drill bit as far as possible into chuck
3.
WITHOUT allowing chuck jaws to touch fluted portion of bit, and hand-tighten chuck clockwise as tightly as you can.
Note: Make sure small bits are not trapped
between edges of two jaws; if they are, rein­stall drill bit or it will not be secure enough to use for drilling.
Stop
The Model T31739 has a depth stop that allows you to drill repeat non-through holes to the same depth every time.
The depth stop consists of a stud attached to the quill with a depth nut that can be lowered or raised against a stop bracket to control drilling depth. Figure 29 shows the various components of the depth stop.
Depth
Stop Stud
Depth
Nut
Stop Bracket
Removing a Drill Bit
1. DISCONNECT MACHINE FROM POWER!
2. Turn chuck counterclockwise to open jaws
and catch drill bit with a rag to protect hands.

Using LED Worklight

Use light switch on front of headstock to turn on LED worklight. Worklight can be repositioned as necessary by pivoting it forward or backward.
Figure 29. Depth stop components.
To adjust depth stop:
Lower drill bit to required height.
1.
2. Thread depth nut down against stop bracket.
Note: The scale on the depth stop can be
recalibrated if it gets moved or has changed from factory setting. Refer to Calibrating Depth Stop on Page 32 for instructions on how this is done.
Worklight
Figure 28. Location of LED worklight.
-24-
Model T31739 (Mfd. Since 11/23)
Page 27

Positioning Table

Tilting Table
1. Loosen the lock bolt and set screw shown in Figure 31.
The table moves vertically, rotates 360°, pivots around the column, and tilts 45° left or right. The support can also be extended to accommodate long workpieces.
Rotating Table
Loosen pivot lock handle shown in Figure 30.
1.
2. Rotate table to desired position, then re-
tighten pivot lock handle.
Raising/Lowering Table
1
. Loosen table height lock handle shown in
Figure 30.
. Adjust table height by rotating table height
2
crank handle (see Figure 30), then re-tighten table height lock handle.
Pivoting Table Around Column
. Loosen table height lock handle (see
1
Figure 30).
. Pivot table to desired location, making sure
2
guide rack moves around column with table, as shown in Figure 30.
2. Tilt table until pointer aligns with desired angle on scale (see Figure 31).
Tilt Angle
Pointer and Scale
Lock Bolt
Set Screw
Figure 31. Table tilt controls.
. Retighten set screw and lock bolt to secure
3
table position.
Adjusting Support Arm Extension
1. Loosen support arm extension locks (see Figure 32).
. Retighten table height lock handle.
3
Rack
Table Height Lock Handle
Pivot Lock
Handle
Figure 30. Table adjustment controls.
Table Height
Crank Handle
Support Arm
Extension Locks
Figure 32. Support arm extension locks.
2. Adjust support arm to desired length.
Tighten support arm extension locks.
3.
Model T31739 (Mfd. Since 11/23)
-25-
Page 28
Adjusting Laser
The crosshair lasers should be checked and adjusted for accuracy before starting a new project, raising or lowering the table, or changing workpiece thickness.
7. Loosen (2) Phillips head screws securing each laser seat then adjust lasers by hand (Figure 34), positioning them so crosshairs align with indentation you made earlier in surface of workpiece (see Figure 35).
— Turning each laser will adjust each cross-
hair line angle.
If a laser burns out, refer to Replacing Lasers &
Worklight on Page 33 to replace.
DO NOT look directly into laser. Severe eye injury will result.
Items Needed Qty
Phillips Head Screwdriver #1 ............................ 1
To adjust lasers:
1.
DISCONNECT MACHINE FROM POWER!
2. Install drill bit in chuck (see Installing/ Removing Drill Bits on Page 24).
Clamp workpiece to table.
3.
Adjust table so workpiece is just below drill
4.
bit, then lock table in position.
— Adjusting laser position in seat will adjust
crosshair line positions.
x 2
Laser
Figure 34. Laser adjustment components.
Indentation
Lower drill bit so it touches workpiece, mak-
5. ing a slight indentation in the surface, then raise bit.
. Connect drill press to power. Turn laser
6
ON using switch on front of drill press (see
Figure 33).
Laser ON/
OFF Switch
Figure 33. Location of laser ON/OFF switch.
-26-
Figure 35. Crosshairs aligned with indentation
on workpiece.
. Once crosshairs are aligned with indenta-
8
tion in workpiece, tighten screws loosened in Step 7 to secure laser positions.
Model T31739 (Mfd. Since 11/23)
Page 29
ACCESSORIES
Installing unapproved accessories may
order online at www.grizzly.com or call 1-800-523-4777

SECTION 5: ACCESSORIES

cause machine to malfunction, resulting in serious personal injury or machine damage. To reduce this risk, only install accessories recommended for this machine by Grizzly.
NOTICE
Refer to our website or latest catalog for additional recommended accessories.
T33682—Drill Press Tray
This tray keeps all your drill press accessories ready to go at your fingertips, making projects more efficient and enjoyable. It will hold a 29-piece drill bit set in the embossed holes and has room for other accessories. Easy to install and use with mount clamps to attach to your drill press column.
T32710—Drill Press Table w/Flip-Stop Fence
This table will increase your usable workspace. The 26" long fence features a T-slot with two adjustable flip stops and an easy-to-read scale with imperial measurements. Fence slides in
3
4" x 153⁄4" table embedded T-slots.
23
Figure 37. T32710 Drill Press Table w/Flip-Stop
Fence.
T30015—HSS M35 Cobalt 115-Pc. Drill Bit Set
The bits in this 115-piece set all have 135˚ split points and fully ground flutes. Fractional sizes
1
16"–1⁄2 " in increments of 1⁄64", letter bits from A–Z,
and 60 number bits.
Figure 36. T33682 Drill Press Tray.
Figure 38. T30015 115-Pc. HSS M35 Cobalt
Drill Bit Set.
Model T31739 (Mfd. Since 11/23)
-27-
Page 30

SECTION 6: MAINTENANCE

accidental startup, always disconnect machine from
To reduce risk of shock or
power before adjustments, maintenance, or service.

Schedule

For optimum performance from this machine, this maintenance schedule must be strictly followed.
Ongoing
To minimize your risk of injury and maintain proper machine operation, shut down the machine imme­diately if you ever observe any of the items below, and fix the problem before continuing operations:
G5562—SLIPIT® 1 Qt. Gel G5563—SLIPIT® 11 Oz. Spray
Figure 39. Recommended products for
protecting unpainted cast-iron and steel.

Lubrication

Loose mounting bolts.
Worn switches.
Worn or damaged wires.
Damaged V-belt.
Any other unsafe condition.
Monthly Check
V-belt tension, damage, or wear (Page 32).
Clean/vacuum dust buildup off motor.
Cleaning &
Protecting
Cleaning the Model T31739 is relatively easy. Vacuum excess wood chips and sawdust, and wipe off the remaining dust with a dry cloth. If any resin has built up, use a resin dissolving cleaner to remove it.
An essential part of lubrication is cleaning the components before lubricating them.
This step is critical because grime and chips build up on lubricated components, which makes them hard to move. Simply adding more lubricant will not result in smooth moving parts.
Clean components in this section before lubricat­ing with recommended products like those shown in Figure 40.
DISCONNECT MACHINE FROM POWER BEFORE PERFORMING LUBRICATION.
T23962—ISO 68 Moly-D Way Oil, 5 Gal. T26419—Syn-O-Gen Synthetic Grease
T23962
Protect the unpainted cast-iron table by wiping it clean after every use—this ensures moisture from wood dust does not remain on bare metal surfaces. Keep the table rust-free with regular applications of products like those in Figure 39.
-28-
T26419
Figure 40. Recommended lubrication products.
Model T31739 (Mfd. Since 11/23)
Page 31
Quill & Column Surfaces
Oil Typ e .....Grizzly T23962 or ISO 68 Equivalent
Oil Amount Lubrication Frequency
Move the spindle all the way down to access the smooth surfaces of the quill. Adjust table height as necessary to access entire length of column (see Figures 41– 42). Clean both with mineral spirits and shop rags.
Note: Avoid removing the grease from the column and quill racks during cleaning.
............................................Thin Coat
...........8 Hrs. of Operation
Quill
Surface
Clean the column rack teeth in a similar manner with mineral spirits, shop rags, and a brush.
Quill Rack
Column Rack
Figure 43. Quill and column rack locations.
After cleaning, allow mineral spirits to dry, then use a brush to apply a thin coat of grease to the rack teeth, then fully raise/lower quill and table to distribute grease.
Note: Apply oil to the quill smooth outside surface that was removed during the cleaning process.
Figure 41. Quill surface.
Column
Surfaces
Figure 42. Column surface locations.
After cleaning, allow mineral spirits to dry, then apply a thin coat of oil to the surfaces.
Column Rack, Quill Rack & Pinion
Grease Type ..... Grizzly T26419 or NLGI#2 Equiv
Grease Amount Lubrication Frequency
....................................Thin Coat
......... 90 hrs. of Operation
Support Arm Extension Rods
Oil Typ e .....Grizzly T23962 or ISO 68 Equivalent
Oil Amount Lubrication Frequency
Clean support arm extension rods (see Figure
44) with mineral spirits and a shop rag.
After cleaning, allow mineral spirits to dry, then apply a thin coat of oil to the rods. Move support arm in and out to distribute lubricant.
............................................Thin Coat
....................... As Needed
Support Arm
Extension Rod
Figure 44. Support arm rod location.
Move spindle all the way down to gain full access to quill rack (see Figure 43), then clean teeth with mineral spirits, shop rags, and a brush.
Model T31739 (Mfd. Since 11/23)
-29-
Page 32
Review the troubleshooting procedures in this section if a problem develops with your machine. If you need replacement parts or additional help with a procedure, call our Technical Support.
the
serial number and manufacture date of your machine before calling.

SECTION 7: SERVICE

Troubleshooting

Motor & Electrical
Symptom Possible Cause Possible Solution
Machine does not start, or power supply fuse/breaker trips immediately after startup.
Machine stalls or is underpowered.
Machine has vibration or noisy operation.
1. E-Stop Button depressed/at fault.
2. Incorrect power supply voltage or circuit size.
3. Power supply circuit breaker tripped or fuse blown.
4. Start capacitor at fault.
5. Wiring broken, disconnected, or corroded.
6. ON/OFF buttons at fault.
7. Motor at fault.
1. Incorrect bit/cutter for task.
2. Feed rate/cutting speed too fast.
3. Dull bit/cutter.
4. Belt slipping.
5. Machine undersized for task.
6. Motor overheated.
7. Pulley slipping on shaft.
8. Motor at fault.
1. Motor or component loose.
2. V-belt worn.
3. Incorrectly mounted to workbench.
4. Motor mount loose/broken.
5. Spindle loose, improperly installed or damaged.
6. Workpiece loose.
7. Motor fan rubbing on fan cover.
8. Spindle bearings at fault.
9. Chuck or cutter at fault.
10. Motor bearings at fault.
1. Rotate E-Stop Button head to reset. Replace if at fault.
2. Ensure correct power supply voltage and circuit size (Page 10).
3. Ensure circuit is sized correctly and free of shorts. Reset circuit breaker or replace fuse.
4. Test/replace if at fault.
5. Fix broken wires or disconnected/corroded connections (Page 36).
6. Replace.
7. Test/repair/replace.
1. Use correct bit/cutter for task.
2. Decrease feed rate/cutting speed (Page 22).
3. Sharpen bit/cutter or replace.
4. Ensure belt is oil free, tension/replace belt (Page 32).
5. Use correct cutter/bit; reduce feed rate; reduce
spindle RPM; use cutting uid if possible.
6. Clean motor/let cool, and reduce workload.
7. Tighten loose pulley; replace broken/missing parts.
8. Test/repair/replace.
1. Replace damaged or missing bolts/nuts or tighten if loose.
2. Inspect/replace belt (Page 32).
3. Shim or tighten mounting hardware (Page 16).
4. Tighten/replace.
5. Tighten loose spindle, install spindle with clean mating surfaces, replace spindle if damaged.
6. Use the correct holding xture for workpiece.
7. Fix/replace fan cover; replace loose/damaged fan.
8. Test by rotating spindle; rotational grinding/loose shaft requires bearing replacement.
9. Replace out-of-round chuck, dull, or bent cutter.
10. Test by rotating shaft; rotational grinding/loose shaft requires bearing replacement.
Note: Please gather
-30-
Model T31739 (Mfd. Since 11/23)
Page 33
Drill Press Operations
Symptom Possible Cause Possible Solution
Tool falls out/loose in spindle/chuck.
Breaking tools or cutters.
Workpiece or tool vibrates or chatters during operation.
Table hard to move.
Spindle overheats. 1. Drill press operated too long at high
Spindle does not fully retract.
Drill bit drifts. 1. Dull/incorrectly sharpened drill bit.
Drill bit stuck in workpiece.
Workpiece thrown from table.
Excessive runout or wobbling in chuck/ drill bit.
Depth stop inaccurate.
Backside of workpiece splinters.
Speed DRO display is incorrect.
Laser or LED does not work.
1. Tool loose or incorrectly installed.
2. Debris on tool or in spindle taper.
3. Excessive feed pressure.
1. Spindle speed/feed rate too fast.
2. Taking too big of cut at one time.
3. Improper cutting technique or type of cut.
4. Cutting tool getting too hot.
5. Spindle extended too far down while drilling.
1. Spindle extended too far down while drilling.
2. Table locks not tight.
3. Workpiece not secure.
4. Spindle speed/feed rate too fast.
1. Table locked.
2. Dirty or dry rack and pinion.
speeds.
1. Poorly adjusted/worn return spring.
2. Debris on spindle/quill rack.
2. Tool/bit/chuck incorrectly installed.
1. Workpiece loose.
2. Lack of proper lubrication for workpiece material.
3. Bit/cutting tool loose in chuck.
4. Spindle speed/feed rate too slow/fast.
1. Workpiece not secure; bit too large for feed speed.
1. Debris between chuck-to-spindle mating surface.
2. Tool/bit bent or installed incorrectly.
3. Spindle bearings worn.
1. Depth stop not calibrated. 1. Calibrate depth stop (Page 32).
1. Scrap board not installed between table and workpiece.
1. Speed sensor catching on pulley/at fault.
2. DRO circuit board wiring broken, disconnected, or corroded.
1. Lens covered with dust.
2. Wires disconnected or damaged.
3. Laser/LED ON/OFF switch at fault.
4. Laser/LED damaged/at fault.
5. Circuit board at fault.
1. Remove and re-install (Page 24).
2. Clean tool and spindle taper, then re-install.
3. Decrease feed pressure and allow chips to clear.
1. Reduce spindle speed; reduce feed rate.
2. Decrease feed pressure and allow chips to clear.
3. Use right technique, tool, or machine for job.
4. Use coolant or oil for appropriate application (Page
21); reduce cutting speed (Page 22).
5. Retract spindle and raise table to increase rigidity.
1. Retract spindle and raise table to increase rigidity.
2. Tighten table locks (Page 25).
3. Properly clamp workpiece on table or in vise.
4. Reduce spindle speed (Page 22); reduce feed rate.
1. Disengage table locks (Page 25).
2. Clean away chips/debris. Lubricate rack and pinion.
1. Allow drill press to cool. Avoid operating at high speeds for extended time.
1. Replace/increase return spring tension (Page 35).
2. Clean and lubricate spindle/quill rack.
1. Correctly sharpen drill bit.
2. Correctly install tool/bit/chuck.
1. Properly clamp workpiece.
2. Use appropriate lubrication for application (Page
21).
3. Remove and re-install (Page 24).
4. Adjust spindle speed (Page 22); feed rate.
1. Properly clamp workpiece on table or in vise; decrease feed speed.
1. Remove chuck, clean, deburr tapered chuck and spindle mating surfaces, reassemble.
2. Install tool/bit correctly or replace (Page 25).
3. Replace spindle bearings.
1. Install scrap board between table and workpiece.
1. Adjust position/replace if at fault.
2. Fix broken wires or disconnected/corroded wiring connections (Page 36).
1. Clean lens.
2. Check for proper connections or replace (Page 36).
3. Replace switch.
4. Replace laser/LED (Page 33).
5. Replace circuit board.
Model T31739 (Mfd. Since 11/23)
-31-
Page 34
V-Belt Tension &
Replacement
The V-belt transfers power from the motor to the spindle. If the V-belt does not have the proper tension or is damaged or contaminated with oil/ grease, the drill press will not operate with full power. Regularly check V-belt tension and replace the belt when necessary. Figure 45 shows the V-belt tension components.
Fixed Pulley
V-Belt
3.
Open belt cover.
4. Remove old belt and install a new one.
5. Close belt cover and connect machine to
power.
To re-tension belt, turn spindle rotation ON,
6.
and adjust spindle speed lever to lowest speed setting.
Note: Belt tension cannot be reapplied with-
out spindle turning.
Calibrating
Depth Stop
The depth stop allows you to drill multiple holes at the same depth. The scale on this depth stop can be calibrated if it ever becomes incorrect.
Speed Pulley
Figure 45. V-belt tension components.
To replace V-belt:
DISCONNECT MACHINE FROM POWER!
1.
2. Adjust spindle speed lever fully for-
ward to highest speed setting (see Figure 46) to release belt tension.
Spindle Speed
Lever
Figure 46. Spindle speed lever location.
To calibrate depth stop:
Loosen return stop nut and calibration nut
1.
shown in Figure 47.
Return Stop
Nut
Calibration
Nut
Figure 47. Calibration components.
2. Use calibration nut to zero depth stop scale
with depth stop bracket.
Hold depth stop at zero, and tighten return
3.
stop nut to hold depth stop in position.
Test depth stop by measuring how far spindle
4.
moves with respect to where you set depth stop.
Depth Stop
Bracket
-32-
Model T31739 (Mfd. Since 11/23)
Page 35
Replacing Lasers &
1
2
NC
Ground
DRO
Circuit
Board
E-Stop Button
Ground
CONTROL PANEL
DKLD
CB07 6A
ON/OFF
Switch
LAY5-
BE102
1
2
3
4
Neutral
Hot
Ground
120 VAC
5-15 Plug
120V MOTOR
MOTOR
JUNCTION BOX
Run
Capacitor
25uF
450VAC
1W 3.5V
LED LIGHT
+
+
+
-
-
-
Circuit
Board
DKLD
CB07-5C
SPEED SENSOR
LED Worklight
If either one of the lasers or the LED bulb in the worklight burn out and need to be replaced, they must be rewired. A wiring diagram is provided on
Page 36 for your reference.
Items Needed Qty
Phillips Head Screwdriver #1, #2 .................1 Ea.
New Laser & Cord (#PT31739067)
Replacing Laser
1.
DISCONNECT MACHINE FROM POWER!
2. Remove (2) Phillips head screws securing burned out laser in laser seat (see Figure 48).
................... 1
4. Remove control panel cover. Find where
laser cord wires connect to laser switch and crimp wire connector (see Figure 50).
DKLD DZ04
21
Crimp
Wire Connector
Laser Cord
LASERS
DKLD 1801
LASER
SWITCH
GORBO
XCK-017
Laser Switch
21
LIGHT
SWITCH
GORBO
XCK-017
(1 of 2)
Figure 50. Laser wiring.
. Remove burned out laser wires from their
5
their connections on laser switch and in crimp wire connector, then remove laser from head­stock, pulling wires with it.
x 2
Figure 48. Location of Phillips head screws
securing laser.
3.
Open belt cover and identify which cord is
connected to laser by lightly tugging cords fed into headstock (see Figure 49).
. Insert new laser wires up through hole in
6
headstock, through belt cover, and attach wires to laser switch and crimp wire connec­tor as they were connected in Step 4.
7. Replace control panel cover and close belt
cover.
. Refer to Adjusting Laser on Page 26 to
8
secure and adjust laser.
Figure 49. Worklight and laser cords fed into
headstock.
Model T31739 (Mfd. Since 11/23)
-33-
Page 36
Replacing Worklight
1
2
NC
DRO
Circuit Board
E-Stop Button
CONTROL PANEL
DKLD
CB07 6A
LAY5-
BE102
Neutral
Hot
Ground
120 VAC
5-15 Plug
Circuit
Board
DKLD
CB07-5C
SPEED SENSOR
Items Needed Qty
Phillips Head Screwdriver #2 ......................1 Ea.
New Worklight & Cord (#PT31739066)
To replace worklight:
DISCONNECT MACHINE FROM POWER!
1.
2. Grip and pull worklight down through head-
stock hole to reveal spring clamps (see Figure 51). Quarter-turn the worklight to release clamps and worklight.
............. 1
3. Open belt cover and identify which cord is
connected to worklight by lightly tugging cords fed into headstock (see Figure 52).
Figure 52. Cords fed into headstock.
4. Remove control panel cover. Find where work-
light cord wires connect to worklight switch and crimp wire connector (see Figure 53).
Spring Clamps
Figure 51. Worklight position and clamps.
Worklight
3
1
21
Worklight
LASER
SWITCH
Switch
GORBO
XCK-017
4
ON/OFF
Switch
2
DKLD DZ04
21
LIGHT
SWITCH
GORBO
XCK-017
LED LIGHT
Worklight
Cord
+
-
+
-
+
-
1W 3.5V
Crimp
Wire Connector
Figure 53. Worklight wiring.
. Replace old worklight wires with new work-
5
light wires, and feed new worklight back through headstock and worklight hole.
6. Replace control panel cover and close belt
cover.
. Use spring clamps to secure worklight in
7
position.
-34-
Model T31739 (Mfd. Since 11/23)
Page 37
Adjusting
Spring Tension
The spring tension for automatic quill recoil has been pre-set at the factory. In most cases, it will never need to be re-adjusted during life of the machine. However, if quill stops automatically recoiling, the spring may need to be adjusted for additional tension. If it does need adjustment, the spring housing is located on the left side of the headstock.
If the return spring should come loose from the spring cap and rapidly unwind, laceration or impact inju­ries could occur. Always wear heavy leather gloves and safety glasses when adjusting the return spring tension.
5. Wearing gloves, pull spring cover (see Figure
55) outward just enough to disengage spring-
cover lock slot from locking lug.
6. Rotate cover counterclockwise to increase
tension, or let cover slowly unwind in clock­wise direction to reduce spring tension (see Figure 54).
Reduce Spring Tension
Increase Spring Tension
Figure 54. Example of adjusting cover.
7. Engage next available spring-cover lock slot
with locking lug (see Figure 55) and hold spring lock cover tightly to side of headstock.
Items Needed Qty
Heavy Leather Gloves ................................1 Pair
Safety Glasses Shop Rags Open-End Wrench 19mm
To adjust spring tension:
1. DISCONNECT MACHINE FROM POWER!
PUT ON SAFETY GLASSES!
2.
Wipe any oil off spring lock cover so it does not
3.
slip in your fingers when you hold the cover from spinning (see Figure 55).
4. Hold spring lock cover against side of headstock so the cover stays splined with locking lug, as shown in Figure 55, then loosen jam nut and loosen cover nut approximately
IMPORTANT: Hold spring cover tightly during
Step 5, or force of spring will cause cover to
spin out of your hands.
...........................................1 Pair
......................................... As Needed
.................................. 1
1
4" each.
Spring Lock
Cover
Jam Nut and
Cover Nut
Figure 55. Spindle return spring assembly.
8. Tighten cover nut against spring cover
just until nut stops, and then back off nut approximately
9. Hold cover nut and tighten jam nut to cover
nut.
Check return spring tensioning by downfeed-
10.
ing spindle. Spindle should return quickly when downward pressure is released.
— If spindle does not retract quickly, repeat
Steps 4–9, and re-check tension until return speed is adequate.
1
3 turn.
Spring Cover
Locking Lug
Spring Cover
Lock Slots
Model T31739 (Mfd. Since 11/23)
-35-
Page 38
These pages are current at the time of printing. However, in the spirit of improvement, we may make chang­es to the electrical systems of future machines. Compare the manufacture date of your machine to the one stated in this manual, and study this section carefully.
If there are differences between your machine and what is shown in this section, call Technical Support at (570) 546-9663 for assistance BEFORE making any changes to the wiring on your machine. An updated wiring diagram may be available.
number and manufacture date of your
machine before calling. This information can be found on the main machine label.

SECTION 8: WIRING

Note: Please gather the serial

Wiring Safety Instructions

SHOCK HAZARD. Working on wiring that is con-
nected to a power source is extremely dangerous. Touching electrified parts will result in personal injury including but not limited to severe burns, electrocution, or death. Disconnect the power from the machine before servicing electrical com­ponents!
MODIFICATIONS. Modifying the wiring beyond what is shown in the diagram may lead to unpre­dictable results, including serious injury or fire. This includes the installation of unapproved after­market parts.
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.
CIRCUIT REQUIREMENTS. You MUST follow the requirements at the beginning of this manual when connecting your machine to a power source.
WIRE/COMPONENT DAMAGE. Damaged wires or components increase the risk of serious per­sonal injury, fire, or machine damage. If you notice that any wires or components are damaged while performing a wiring task, replace those wires or components.
MOTOR WIRING. The motor wiring shown in these diagrams is current at the time of printing but may not match your machine. If you find this to be the case, use the wiring diagram inside the motor junction box.
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.
EXPERIENCING DIFFICULTIES. If you are expe­riencing difficulties understanding the information included in this section, contact our Technical Support at (570) 546-9663.
The photos and diagrams included in this section are best viewed in color. You can view these pages in color at www.grizzly.com.
-36-
Model T31739 (Mfd. Since 11/23)
Page 39
Ground
Ground
120V MOTOR
MOTOR
JUNCTION BOX

Wiring Diagram

Neutral
Run
Capacitor
25uF
250VAC
Hot
Ground
SPEED SENSOR
CONTROL PANEL
E-Stop
Button
3
1
21
DRO
Circuit Board
NC
2
4
ON/OFF
Switch
2
DKLD DZ04
1
LAY5­BE102
DKLD
CB07 6A
21
120 VAC
5-15 Plug
DKLD
CB07-5C
-
LED LIGHT
1W 3.5V
Circuit
Board
+
-
-
Figure 56. Motor junction box wiring.
Figure 57. Control panel wiring.
+
+
LASER
SWITCH
GORBO
XCK-017
LASERS
DKLD 1801
Model T31739 (Mfd. Since 11/23)
LIGHT
SWITCH
GORBO
XCK-017
Figure 58. Speed sensor.
READ ELECTRICAL SAFETY
ON PAGE 36!
-37-
Page 40

SECTION 9: PARTS

We do our best to stock replacement parts when possible, but we cannot guarantee that all parts shown are available for purchase. Call (800) 523-4777 or visit www.grizzly.com/parts to check for availability.

Main

117
107
21
22
20
106
99
104
103 102
101
42
40
41
19
118
39
38
25
24
23
18
56
57
45
43
49
105
50
44
28
109
17
51
58
48
46
29
52
59
26
53
47
30
27
31
98
97
96
60
37
54
31
55
3
2
1
0
16
67
34-1
32
33
34
35
93
36
14
95
94 93
92
68 72
85
91
65
64 63
62
90
87 73
66
89
61
119
8
88 63
69
110
70
77
74
15
83
78
82
75
81
71
76
12
13
86
11
5
4 3
2
9
7
10
84
80
75
7
79
78-1
78-4
8
78-6
108
78-2
6
113
78-3
78-5
78-7
116
114
115
1
-38-
BUY PARTS ONLI NE AT GRIZZLY.COM!
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Model T31739 (Mfd. Since 11/23)
Page 41
REF P ART # DES CRIP TION REF PART # DES CRIP TION
Main Parts List
1 PT31739001 BASE 58 PT31739058 HEX NUT M12-1.75 2 PT31739002 COLUMN SEAT 59 PT31739059 RETURN SP RI NG COV ER 3 PT31739003 HEX BOLT M8-1.25 X 20 60 PT31739060 FLAT COIL SPRING 4 PT31739004 COLUMN 61 PT31739061 HEADS TOCK 5 PT31739005 RACK 62 PT31739062 CAP SCREW M8-1.25 X 12 6 PT31739006 REVOLVING HANDLE 20 X 75, M10-1.5 X 10 63 PT31739063 FLAT WA SHER 8MM 7 PT31739007 SET SCREW M6-1 X 10 64 PT31739064 COMPRESSION SPRING 2 X 22 X 80 8 PT31739008 LOCK HANDLE 15 X 78, M10-1.5 X 25 65 PT31739065 SPEED SHAFT 9 PT31739009 WORM SHAFT 66 PT31739066 LED BULB 1W 3.5V 10 PT31739010 WORM GEAR PIN 67 PT31739067 LASER DKLD 1801 11 PT31739011 WORM GEAR 68 PT31739068 LASER COVER 12 PT31739012 WORM GEA R HOUS I NG 69 PT31739069 PINION GEAR 13 PT31739013 COLUMN RI NG 70 PT31739070 DOWNFEED LEVER HUB M10-1.5 14 PT31739014 HEX BOLT M12-1.75 X 25 71 PT31739071 KNOB BOLT M10-1.5 X 10, D40, ROUND 15 PT31739015 TABLE MOUNTI NG ARM 72 PT31739072 LASER SEAT 16 PT31739016 TABLE 73 PT31739073 SET SCREW M6-1 X 10 17 PT31739017 EXTENSION ROD 1/2" X 8-3/4" 74 PT31739074 HEX BOLT M10-1.5 X 40 18 PT31739018 KNOB BOLT M8-1.25 X 18, D36, WING 75 PT31739075 FLAT WASHER 10MM 19 PT31739019 EXTENSION ROLLER BRACKET 76 PT31739076 MOTOR MO UNT PLATE 20 PT31739020 EXTENSION ROLLER 77 PT31739077 HEX BOLT M8-1.25 X 16 21 PT31739021 FLAT HD CAP SCR M6-1 X 12 78 PT31739078 MOTOR 1/3HP 120V 1-PH 22 PT31739022 CAP SCREW M10-1.5 X 20 78-1 PT31739078-1 MOTOR FA N COV ER 23 PT31739023 DRILL CHUCK JT3 X 1/32"-5/8" KEYLESS 78-2 PT31739078-2 MOTOR FA N 24 PT31739024 DRILL CHUCK A RBOR 5/ 8" 78-3 PT31739078-3 CAPACITOR COVER 25 PT31739025 SPINDLE 78-4 PT31739078-4 26 PT31739026 BALL BEARING 6204ZZ 78-5 PT31739078-5 MOTOR J UNCTI ON BOX 27 PT31739027 QUILL 78-6 PT31739078-6 BALL BEARING 6203ZZ 28 PT31739028 BALL BEARING 6201ZZ 78-7 PT31739078-7 MOTOR CORD 3G 3W 39" 29 PT31739029 CLAMP BOLT M12-1.75 X 2 79 PT31739079 HEX NUT M1 0-1. 5 30 PT31739030 COMPRESSION SPRING 1.2 X 6 80 PT31739080 KEY 4 X 4 X 80 SE 31 PT31739031 LOCK NUT M8-1.25 81 PT31739081 MOTOR SPRING SEAT 32 PT31739032 QUICK-RELEASE DEPTH STOP 82 PT31739082 COMPRESSION SPRING 2 X 33 X 78 33 PT31739033 DEPTH STO P S UPPORT NUT 83 PT31739083 MOTOR PULLEY SET 34 PT31739034 THREADED DE PTH RO D 84 PT31739084 SET SCREW M6-1 X 10 34-1 PT31739034-1 DEPTH STOP GAUGE 85 PT31739085 PHLP HD SCR M4-.7 X 16 35 PT31739035 HEX NUT M6- 1 86 PT31739086 EXT RE TAINI NG RING 1 6MM 36 PT31739036 DEPTH STOP BRACKET 87 PT31739087 SPEED SENSOR MOUNT 37 PT31739037 CAP SCREW M6-1 X 25 88 PT31739088 FLA T WAS HER 5MM 38 PT31739038 PHLP HD SCR M5-.8 X 16 89 PT31739089 PHLP HD SCR M5-.8 X 20 39 PT31739039 ROCKER SWITCH GORBO XCK-017 10(4)A 250V 90 PT31739090 SPEED SENSOR DKLD CB07-5C 40 PT31739040 MAG ON/OFF SWITCH DKLD DZ04 10A 120V 91 PT31739091 TAP SCREW M2.9 X 6 41 PT31739041 E-STOP BUTTON LAY5-BE102 10(6)A 400V 92 PT31739092 EXT RE TAINI NG RING 1 7MM 42 PT31739042 DISPLAY SCREEN COVER 93 PT31739093 BALL BEARING 6203ZZ 43 PT31739043 SWI TCH B OX 94 PT31739094 BUSHING 39 X 27 X 10 44 PT31739044 TAP SCREW M3 X 8 95 PT31739095 SPINDLE PULLEY SHAFT 45 PT31739045 DIGITAL DISPLAY DKLD CB07-6A 96 PT31739096 KEY 4 X 4 X 65 SE 46 PT31739046 CHUCK KEY HOLDER 97 PT31739097 EXT RE TAINI NG RING 2 4MM 47 PT31739047 DEPTH STOP BRACKET 98 PT31739098 BELT GUARD 48 PT31739048 PHLP HD SCR M5-.8 X 12 99 PT31739099 SPINDLE PULLEY SET 49 PT31739049 LOCK NUT M10-1.5 101 PT31739101 E XT RETAI NI NG RING 3 5MM 50 PT31739050 FLAT WASHER 10MM 102 PT31739102 INT RE TAINI NG RING 5 0MM 51 PT31739051 SPEED HANDLE HUB 103 PT31739103 BALL BEARING 61907-ZZ 52 PT31739052 FL AT HD SCR M5-. 8 X 16 104 PT31739104 SPEED SEAT 53 PT31739053 SPEED ADJUST PLATE 105 PT31739105 SET SCREW M10-1.5 X 20 54 PT31739054 KEY 4 X 4 X 12 SE 106 PT31739106 POLY V-BELT AX35 55 PT31739055 SPEED CONTROL GEAR 107 PT31739107 POWER CORD 18G 3W 39.5" 5-15P 56 PT31739056 SPEED CONTROL KNOB SHAFT 108 PT31739108 LEVER 57 PT31739057 KNOB M8-1.25, D32, BALL
R CAPACITOR 25M 250V 3-1/2 x 1-5/8
Model T31739 (Mfd. Since 11/23)
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-39-
Page 42
Main Parts List (Cont.)
REF PART # DESCRIPTION REF PART # DESCRIPTION
110 PT31739110 SPEED SENSOR CORD 24G 3W 10" 116 PT31739116 DRIFT KEY 113 PT31739113 HEX WRENCH 3MM 117 PT31739117 FLANGE SCREW M6-1 X 12 114 PT31739114 HEX WRENCH 4MM 118 PT31739118 EXT RETAINING RING 12MM 115 PT31739115 HEX WRENCH 5MM 119 PT31739119 SET SCREW M8-1.25 X 12

Labels & Cosmetics

NOTICE
Only change speed while spindle is turning.
204
201
203
Specifications
Motor: 1/3 HP, 120V, 4.3A, 1-Ph, 60 Hz Max Distance Spindle to Column: 6" Max Distance Spindle to Table: 13-1/4" Max Distance Spindle to Base: 20-1/4" Spindle Speed Range: 300-3000 RPM Drilling Capacity Mild Steel: 5/8" Spindle Travel: 3-1/2" Spindle Taper: MT#2 Weight: 93 lbs.
Mfd. for Grizzly in Taiwan
+
Date
S/N
WARNING!
INJURY/SHOCK
HAZARD! Disconnect power before adjustments, maintenance, or service.
WARNING!
To reduce risk of death or serious injury, read manual BEFORE using machine.
To get a new manual, call (800) 523-4777 or go to www.grizzly.com.
206
MODEL T31739
12" VARIABLE-SPEED BENCHTOP
DRILL PRESS WITH LASER
WARNING!
To reduce the risk of serious injury when using this machine:
1. Read and understand owner’s manual before operating.
2. Always wear approved safety glasses.
3. Only plug power cord into a grounded outlet.
4. Disconnect power before setting up or servicing.
5. Tie back long hair, roll up long sleeves, and DO NOT wear loose clothing, gloves, or jewelry.
6. Keep all guards and covers in place during operation.
7. Clamp workpiece to table to prevent rotation.
8. Avoid putting hands where they could slip into rotating bits.
9. Always remove chuck keys and other tools before starting.
10. Use correct speeds for drilling accessories and workpiece.
11. Do not expose to rain or use in wet locations.
12. Prevent unauthorized use by children or untrained users.
WARNING!
PINCH
HAZARD!
Always keep this cover closed during operation.
205V2
DO NOT look directly into the laser. Serious eye damage will occur.
207
WARNING!
ENTANGLEMENT
HAZARD! Tie back long hair, roll up long sleeves, and remove loose clothing, jewelry, or gloves to prevent getting caught in moving parts.
WARNING!
EYE/FACE INJURY
HAZARD! Always wear ANSI-approved safety glasses and face shield when using this machine.
209
202
210
208
REF P ART # DES CRIP TI ON REF PART # DE SCRIP TION
201 PT31739201 SHOCK/PINCH HAZARD LABEL 206 PT31739206 MACHINE ID LABEL 202 PT31739202 MANUAL/ENTANGLEMENT/EYE-FACE LABEL 207 PT31739207 LASER LABEL 203 PT31739203 SPEED ADJUSTMENT LABEL 208 PT31739208 ELECTRICITY LABEL 204 PT31739204 SPEED NOTICE LABEL 209 PT31739209 TOUCH-UP PAINT GRIZZLY GREEN 205V2 PT31739205V2 GRIZZLY NAMEPLATE-MINI V2.11.23 210 PT31739210 TOUCH-UP PAINT GRIZZLY BLACK
Safety labels help reduce the risk of serious injury caused by machine hazards. If any label comes off or becomes unreadable, the owner of this machine MUST replace it in the original location before resuming operations. For replacements, contact (800) 523-4777 or www.grizzly.com.
-40-
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Model T31739 (Mfd. Since 11/23)
Page 43

WARRANTY & RETURNS

Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse,
negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty
and any and all warranties that may be implied by law, including any merchantability or fitness, for any par­ticular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants.
In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and
any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special, or consequential damages arising from the use of our products.
The manufacturers reserve the right to change specifications at any time because they constantly strive to achieve better quality equipment. We make every effort to ensure that our products meet high quality and durability standards and we hope you never need to use this warranty.
In the event you need to use this warranty, contact us by mail or phone and give us all the details. We will
then issue you a “Return Number,’’ which must be clearly posted on the outside as well as the inside of
the carton. We will not accept any item back without this number. Proof of purchase must accompany the merchandise.
Please feel free to write or call us if you have any questions about the machine or the manual.
Thank you again for your business and continued support. We hope to serve you again soon.
To you can applicable information for
take advantage of this warranty, you must register it at https://www.grizzly.com/forms/warranty, or
scan the QR code below to be automatically directed to our warranty registration page. Enter all
the product.
WARRANTY
Page 44
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