Grizzly G0793 User guide

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224V2 P0793224V2 SPINDLE FEED COVER V2.01.22

Model G0793

***IMPORTANT UPDATE***

For Machines Mfd. Since 01/22

and Owner's Manual Revised 02/19

For questions or help with this product contact Tech Support at (570) 546-9663 or techsupport@grizzly.com

The following changes were recently made since the owner's manual was printed:

• Oil sight glass and oil fill plug have been removed from downfeed gearbox.

• Lubrication requirement for downfeed gearbox has been revised.

• Labels & Cosmetics has been revised.

Aside from this information, all other content in the owner's manual applies and MUST be read and understood for your own safety. IMPORTANT: Keep this update with the owner's manual for future reference.

For questions or help, contact our Tech Support at (570) 546-9663 or techsupport@grizzly.com.

Revised Parts

REF PART # DES CRIPTIO N

Revised Labels

224V2

Label Removed

Lubrication

WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE

OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.

Downfeed Gearbox

The downfeed gearbox is lubricated with grease and sealed at the factory and requires no maintenance from the user.

#JP22415 PRINTED IN CHINA

MODEL G0793

HEAVY-DUTY DRILL PRESS

w/AUTO-FEED & L-TABLE

OWNER'S MANUAL

(For models manufactured since 02/15)

WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE

OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.

#BB17384 PRINTED IN CHINA

V1. 0 2 .19

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.

Table of Contents

INTRODUCTION ............................................... 2

Contact Info.................................................... 2

Manual Accuracy ........................................... 2

Identification ................................................... 3

Controls & Components ................................. 4

Machine Data Sheet ...................................... 5

SECTION 1: SAFETY ....................................... 7

Safety Instructions for Machinery .................. 7

Additional Safety for Drill Presses ................. 9

SECTION 2: POWER SUPPLY ...................... 10

SECTION 3: SETUP ....................................... 12

Unpacking .................................................... 12

Needed for Setup ......................................... 12

Inventory ...................................................... 12

Site Considerations ...................................... 14

Lifting & Placing ........................................... 15

Anchoring to Floor ....................................... 15

Arbor/Chuck Assembly ................................ 16

Initial Lubrication .......................................... 16

Power Connection........................................ 17

Test Run ...................................................... 18

Spindle Break-In .......................................... 20

SECTION 4: OPERATIONS ........................... 21

Operation Overview ..................................... 21

Installing/Removing Tooling ......................... 22

Depth Stop ................................................... 23

Positioning Table ......................................... 24

Spindle Speed.............................................. 24

Calculating Spindle Speed for Drilling ......... 26

Drilling Mode ................................................ 27

Auto-Feed .................................................... 28

Tapping Mode .............................................. 29

Coolant System............................................ 29

SECTION 5: ACCESSORIES ......................... 30

SECTION 6: MAINTENANCE ......................... 32

Schedule ...................................................... 32

Cleaning and Protecting .............................. 32

Lubrication ................................................... 33

Adding/Changing Coolant ............................ 36

SECTION 7: SERVICE ................................... 37

Troubleshooting ........................................... 37

Replacing Lamp Bulb ................................... 39

Adjusting Torque Limiter .............................. 39

SECTION 8: WIRING ...................................... 40

Wiring Safety Instructions ............................ 40

Wiring Overview ........................................... 41

Component Location .................................... 41

Electrical Panel Wiring ................................. 42

Electrical Panel Photo .................................. 43

Control Panel Wiring .................................... 44

Control Panel Photo ..................................... 45

Spindle Motor Wiring ................................... 46

Coolant Pump Wiring ................................... 46

SECTION 9: PARTS ....................................... 47

Table Support & Coolant ............................. 47

Gearbox ....................................................... 48

Downfeed Gearbox ...................................... 50

Headstock .................................................... 51

Electrical ...................................................... 53

Labels & Cosmetics ..................................... 54

WARRANTY & RETURNS ............................. 57

INTRODUCTION

We are proud to provide a high-quality owner’s manual with your new machine!

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

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.

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

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

Contact Info

and manufacture date from the

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 Serial Number

Manufacture Date

Serial Number

-2-

Model G0793 (Mfd. Since 02/15)

Identification

To reduce your risk of serious injury, read this entire manual BEFORE

Become familiar with the names and locations of the controls and features shown below to better understand the instructions in this manual.

A. Master Power Switch B. Lifting Eye Bolt C. Motor D. Speed Control Levers E. Control Panel (see Page 4 for details) F. Chip Guard G. Coolant Pump H. Automatic Drift Knob

Model G0793 (Mfd. Since 02/15)

I. Automatic Downfeed Adjustment Knob J. Coolant Nozzle K. Oil Sight Glass L. Depth Stop Knob M. Coarse Downfeed Handles N. Table Lock Handles O. Table Height Adjustment Crank

using machine.

-3-

Controls & Components

Refer to Figures 1 and the following 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 stay safe when operating this machine.

Figure 1. G0793 Headstock Controls and Components.

A. Spindle Stop Button: Stops spindle rotation.

B. Spindle Reverse Button: Reverses direction

of spindle rotation during tapping operations.

C. Spindle Speed/Direction Switch: Selects

high/low range for spindle speed and spindle direction.

D. Automatic Drift: When pushed in, tooling

can be removed by returning spindle to the "up" position.

H. Spindle Speed Levers: Used to select spin-

dle speed within selected speed range.

I. Work Lamp Switch: Turns work light ON or

OFF.

J. Depth Stop Knoba Used to set depth stop.

K. EMERGENCY STOP Button: Immediately

cuts power to motor and control panel when pressed. Remains depressed until button is reset by twisting clockwise.

E. Automatic Downfeed Adjustment Knob:

Selects rate of powered downfeed.

F. Master Power Switch: Enables power flow

to machine.

G. Coolant Pump Switch: Turns pump ON,

sending coolant to nozzle.

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L. Drilling/Tapping Switch: Selects between

drilling and tapping modes.

M. Downfeed Engagement Lever: Engages

powered downfeed when pushed up. When pulled down disengages powered downfeed.

N. Spindle Start Button: Starts spindle rotation

when master power switch is set to the ON position.

Model G0793 (Mfd. Since 02/15)

Machine Data Sheet

MACHINE DATA

SHEET

Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901

MODEL G0793 HEAVY‐DUTY DRILL PRESS WITH AUTO‐

FEED, TAPPING AND L‐TABLE

Product Dimensions:

Weight............................................................................................................................................................ 1026 lbs.

Width (side-to-side) x Depth (front-to-back) x Height..................................................................... 22 x 37 x 89-1/2 in.

Footprint (Length x Width)............................................................................................................................ 29 x 20 in.

Shipping Dimensions:

Type.......................................................................................................................................................... Wood Crate

Content........................................................................................................................................................... Machine

Weight............................................................................................................................................................ 1202 lbs.

Length x Width x Height....................................................................................................................... 90 x 28 x 45 in.

Must Ship Upright.................................................................................................................................................... No

Electrical:

Power Requirement................................................................................................................... 220V, 3-Phase, 60 Hz

Full-Load Current Rating....................................................................................................................................... 6.6A

Minimum Circuit Size.............................................................................................................................................. 15A

Connection Type....................................................................................................................................... Cord & Plug

Power Cord Included............................................................................................................................................... No

Recommended Power Cord............................................................................... "S"-Type, 4-Wire, 14 AWG, 300 VAC

Plug Included........................................................................................................................................................... No

Recommended Plug Type................................................................................................................................... 15-15

Switch Type.................................................................................................... Magnetic Switch w/Overload Protection

Recommended Phase Converter....................................................................................................................... G5844

Motors:

Coolant Pump

Main

Horsepower................................................................................................................................................. 75W

Phase.................................................................................................................................................... 3-Phase

Amps........................................................................................................................................................... 0.2A

Speed................................................................................................................................................ 1725 RPM

Type..................................................................................................................................................... Induction

Power Transfer ............................................................................................................................... Direct Drive

Bearings..................................................................................................... Shielded & Permanently Lubricated

Horsepower................................................................................................................................. 1-1/8 HP/2 HP

Phase.................................................................................................................................................... 3-Phase

Amps........................................................................................................................................................... 6.4A

Speed................................................................................................................................ 875 RPM/1725 RPM

Type........................................................................................................................................... TEFC Induction

Power Transfer ................................................................................................................................. Gear Drive

Bearings..................................................................................................... Shielded & Permanently Lubricated

Model G0793 (Mfd. Since 02/15)

-5-

Main Specifications:

Operation Information

Swing...................................................................................................................................................... 27.5 in.

Spindle Taper............................................................................................................................................ MT#4

Spindle Travel.............................................................................................................................................. 7 in.

Max. Distance From Spindle to Column.............................................................................................. 13-3/4 in.

Max. Distance From Spindle to Table................................................................................................. 30-3/4 in.

Range of Spindle Speeds............................................................................................................. 60-1740 RPM

Drilling Capacity (Mild Steel)......................................................................................................................... 1 in

Tapping Capacity......................................................................................................................................... 1 in.

Power Down Feed Speeds..................................................................................................... 0.10mm, 0.20mm

Spindle Information

Quill Diameter.............................................................................................................................................. 3 in.

Table Information

Table Length.............................................................................................................................................. 22 in.

Table Width....................................................................................................................................... 19-1/16 in.

Vertical Table Travel.................................................................................................................................. 20 in.

Number of T-Slots............................................................................................................................................ 2

T-Slot Size................................................................................................................................................ 5/8 in.

Other Specifications:

Country of Origin ................................................................................................................................................ China

Warranty ........................................................................................................................................................... 1 Year

Approximate Assembly & Setup Time .............................................................................................................. 1 Hour

Serial Number Location ............................................................................................ Machine ID Label on Headstock

ISO 9001 Factory .................................................................................................................................................. Yes

Certified by a Nationally Recognized Testing Laboratory (NRTL) .......................................................................... No

Features:

7" of spindle travel Recycling coolant system 2-speed power downfeed Oil-bath gearhead MT#4 spindle w/quick-removal feature Spindle speeds controlled by gearhead levers Spindle safety shield Halogen work light Power tapping capability L-shaped table w/T-slots for great versatility

-6-

Model G0793 (Mfd. Since 02/15)

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 G0793 (Mfd. Since 02/15)

-7-

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 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 recommended 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 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 intended operation, stop using the machine! Contact our Technical Support at (570) 546-9663.

-8-

Model G0793 (Mfd. Since 02/15)

Additional Safety for Drill Presses

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. To avoid loss of drilling control or bit breakage, only drill into a flat surface that is approximately perpendicular to 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 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.

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 machines there is danger associated with this machine. Accidents are frequently caused by lack of familiarity or failure to pay attention. Use this machine with respect and caution to lessen the possibility of operator injury. If normal safety precautions are overlooked or ignored, serious personal injury may occur.

Model G0793 (Mfd. Since 02/15)

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.

-9-

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.

This machine is prewired to operate on a power supply circuit that has a verified ground and meets the following requirements:

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.)

Availability

Electrocution, fire, shock,

supply.

Full-Load Current Rating

Circuit Requirements for 220V

Nominal Voltage .........20 8V, 22 0V, 23 0V, 24 0V

Cycle .......................................................... 60 Hz

Phase .................................................... 3-Phase

Power Supply Circuit ......................... 15 Amps

Plug/Receptacle ............................NEMA 15 -15

Cord ........“ S”-Type, 4-Wire, 14 AWG, 300 VAC

Full-Load Current Rating at 220V .... 6.6 Amps

-10 -

property, consult an electrician if you are unsure about wiring practices or electrical codes in your area.

Model G0793 (Mfd. Since 02/15)

We do not recommend using an extension cord with this machine. 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:

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 a new one.

Serious injury could occur if you connect

process. DO NOT connect to power until

Grounding Instructions

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.

The power cord and plug specified under “Circuit Requirements for 220V” has an equipment-grounding wire and a grounding 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).

No adapter should be used with plug. If plug does not fit available receptacle, or if

process. DO NOT connect to power until

on the previous page

GROUNDED

15-15 RECEPTACLE

15-15 PLUG

Current

Carrying

Grounding Pin

Prongs

Serious injury could occur if you connect machine to power before completing setup

instructed later in this manual.

Extension Cords

Figure 2. Typical 15-15 plug and receptacle.

machine to power before completing setup

instructed later in this manual.

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.

Model G0793 (Mfd. Since 02/15)

If you must use an extension

Minimum Gauge Size ...........................14 AWG

Maximum Length (Shorter is Better).......50 ft.

-11-

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:

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.

Keep children and pets away from plastic bags or packing materials shipped with this

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.

Unpacking

If items are damaged

call us immediately at (570) 546-9663.

Save all packaging materials until

SUFFOCATION HAZARD!

Inventory

Inventory (Figure 3): Qty

A. Drill Chuck B16 3–16mm ............................ 1

B. Drill Chuck Arbor MT#4–B16 ...................... 1

C. Spindle Sleeve MT#4–MT#3 ...................... 1

D. Spindle Sleeve MT#4–MT#2 ...................... 1

E. Bottle for Oil ............................................... 1

F. Drift Key ...................................................... 1

G. Chuck Key .................................................. 1

H. Toolbox (not shown) ................................... 1

machine.

Needed for Setup

The following are needed to complete the setup process, but are not included with your machine.

Description Qty

• Additional People ....................................... 1

• Safety Glasses ........................ 1 Per Person

• Cleaner/Degreaser ..................... As Needed

• Disposable Shop Rags ............... As Needed

• Forklift ......................................................... 1

• Lifting Sling (Rated 1500 lbs. Minimum) ..... 1

• Steel Bar Stock 1" x 3' ................................ 1

-12-

Figure 3. Toolbox inventory.

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.

Model G0793 (Mfd. Since 02/15)

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 manufacturer’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:

Many cleaning solvents

work in a well-ventilated

Cleanup

Gasoline and petroleum products have low flash points and can explode or cause fire if used to clean machinery. Av oid using these products to clean machinery.

Put on safety glasses.

Coat the rust preventative with a liberal

amount of cleaner/degreaser, then let it soak for 5–10 minutes.

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.

are toxic if inhaled. Only

area.

NOTICE

Avoid harsh solvents like acetone or brake parts cleaner that may damage painted surfaces. Always test on a small, inconspicuous location first.

T23692—Orange Power Degreaser

A great product for removing the waxy shipping grease from the non-painted parts of the machine during clean up.

Repeat Steps 2–3 as necessary until clean,

then coat all unpainted surfaces with a quality metal protectant to prevent rust.

Model G0793 (Mfd. Since 02/15)

-13-

Site Considerations

Weight Load

Refer to the of your machine. Make sure that the surface upon which the machine is placed will bear the weight of the machine, additional equipment that may be installed on the machine, and the heaviest workpiece that will be used. Additionally, consider the weight of the operator and any dynamic loading that may occur when operating the machine.

Space Allocation

Consider the largest size of workpiece that will be processed through this machine and provide enough space around the machine for adequate operator material handling or the installation of auxiliary equipment. With permanent installations, leave enough space around the machine to open or remove doors/covers as required by the maintenance and service described in this manual.

See below for required space allocation.

Physical Environment

Extreme conditions for this type of machinery are

Place this machine near an existing power source.

other hazards. Make sure to leave enough space

Shadows, glare, or strobe effects that may distract or impede the operator must be eliminated.

Machine Data Sheet for the weight

Children or untrained people may be seriously injured by this machine. Only install in an access restricted location.

The physical environment where the machine is operated is important for safe operation and longevity of machine components. For best results, operate this machine in a dry environment that is free from excessive moisture, hazardous chemicals, airborne abrasives, or extreme conditions.

generally those where the ambient temperature range exceeds 41°–104°F; the relative humidity range exceeds 20%–95% (non-condensing); or the environment is subject to vibration, shocks, or bumps.

Electrical Installation

Make sure all power cords are protected from traffic, material handling, moisture, chemicals, or

around machine to disconnect power supply or apply a lockout/tagout device, if required.

Lighting

Lighting around the machine must be adequate enough that operations can be performed safely.

37 "

-14-

Wall

30" minimum for

maintenance

Figure 5. Minimum working clearances.

Model G0793 (Mfd. Since 02/15)

22"

Lifting & Placing

get help from other people

Anchoring machinery to the floor prevents tipping or shifting and reduces vibration that may occur during operation, resulting in a machine that runs slightly quieter and feels more solid.

If the machine will be installed in a commercial or workplace setting, or if it is permanently connected (hardwired) to the power supply, local codes may require that it be anchored to the floor.

If not required by any local codes, fastening the machine to the floor is an optional step. If you choose not to do this with your machine, we recommend placing it on machine mounts, as these provide an easy method for leveling and they have vibration-absorbing pads.

Lag shield anchors with lag screws (see below) are a popular way to anchor machinery to a concrete floor, because the anchors sit flush with the floor surface, making it easy to unbolt and move the machine later, if needed. However, anytime local codes apply, you MUST follow the anchoring methodology specified by the code.

HEAVY LIF T! Straining or crushing injury may occur from improperly lifting machine or some of its parts. To reduce this risk,

and use a forklift (or other lifting equipment) rated for weight of this machine.

To lift and place drill press:

1. Place shipping crate near final machine

mounting location.

2. Remove top portion of crate from shipping

pallet, secure ends of a properly rated lifting sling around each side of bar placed through lifting holes, and attach it securely to your power lifting equipment (see Figure 6).

Anchoring to Floor

Number of Mounting Holes ............................ 4

Diameter of Mounting Hardware ...................1"

Anchoring to Concrete Floors

Bar In Lifting

Figure 6. Sling around bar in lifting hole.

3. Unbolt machine from pallet.

4. With another person to help to steady

machine, lift it just enough to clear pallet and any floor obstacles, then place it in its final position.

Model G0793 (Mfd. Since 02/15)

Hole

Lag Screw

Flat Washer

Machine Base

Concrete

Figure 7. Popular method for anchoring

machinery to a concrete floor.

Lag Shield Anchor

Drilled Hole

-15-

Arbor/Chuck

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

and arbor assembly

AFTER

the test run.

To join drill chuck and arbor:

clean drill

5. Attempt to separate drill chuck and arbor by hand —if they separate, repeat Steps 3–4.

Assembly

install the drill chuck

into the spindle until

Use acetone or lacquer thinner to chuck and arbor mating surfaces, especially the bore.

Retract chuck jaws completely into chuck.

Insert small end of arbor into chuck.

Hold assembly by the arbor and tap chuck onto a block of wood with medium force, as illustrated below.

Initial Lubrication

GEARBOXES MUST

BE FILLED WITH OIL!

OIL MAY NOT BE

SHIPPED WITH MACHINE!

Refer to Lubrication Section

for Correct Oil Type.

To prevent spillage, this machine was shipped from the factory without any oil or coolant in it. The headstock and gearbox oil reservoirs must be properly filled with oil before the drill press can be operated for the first time. In addition, the coolant pump reservoir must be filled properly before operation. Refer to the Lubrication section, beginning on Page 33, for details on how to check and add oil or coolant.

Damage caused by running drill press without oil in reservoirs is not covered under warranty.

Figure 8. Installing arbor into chuck.

-16 -

If pump is running, ball valve is open, and no coolant is flowing from coolant nozzle, this is an indication of inadequate coolant levels in reservoir. Immediately turn pump OFF! Running pump without adequate coolant can lead to pump damage, which will not be covered under warranty.

Model G0793 (Mfd. Since 02/15)

or equipment damage may occur if machine is not properly grounded and connected to power

30 31 E

U2 V2 W2 0 1 2 3 A 4 5 6 7 9 10 11

Master Power Switch

531

8 4

6 2

Transformer

JBK5-100VATH

CanSen

LW26-20

OFF

QM3

DZ451-63

OFF

QM2

DZ451-63

OFF

QM1

D10

DZ451-63

L3L2L1

1L1

13NO 21NC 31NC 43NO

14NO 22NC 32NC 44NO

3L2 5L3

2T1 4T2 6T3

KM1 Contactor

Siemens 3TB41 24V

1L1

13NO 21NC 31NC 43NO

14NO 22NC 32NC 44NO

3L2 5L3

2T1 4T2 6T3

KM2 Contactor

Siemens 3TB41 24V

2L1 ZL3

13NO 23NO 33N0 43NO

14NO 24N0 34N0 44NO

KA1 Contactor

Siemens 3TH80 24V

13NO 23NO 33N0 43NO

14NO 24N0 34NO 44NO

KA0 Contactor

Siemens 3TH80 24V

2L1

2L2

ZL3

119

5 643

2L2

3L1

3L3

2L1

ZL3

3L3

3L1

U2U2V2V2W2

12 13

U2 V2 W2

Power Connection

Before the machine can be connected to the power source, an electrical circuit and connection device must be prepared per the POWER SUPPLY section in this manual; and all previous setup instructions in this manual must be complete to ensure that the machine has been assembled and installed properly.

Note About Extension Cords: Using an incor- rectly sized extension cord may decrease the life of electrical components on your machine. If you must use an extension cord, refer to Extension Cords on Page 11 for more information.

To connect power cord to drillpress:

1. Press EMERGENCY stop button on control

panel, turn master power switch OFF, then remove electrical panel cover, as shown in

Figure 9.

2. Thread power cord through strain relief shown in Figure 9.

Electrocution, fire, shock,

supply.

3. Connect ground wire to terminal on ground-

ing plate. Then connect incoming hot wires to L1, L2, and L3 terminals (see Figure 10).

Note About Phase Converters: If using a

phase converter to supply power, only connect the manufactured leg or "wild wire" to the "L2" terminal. The L2 line can handle power fluctuations because it bypasses sensitive electrical components and is wired directly to the motor.

Ground Wire

Connected

For phase converter wild wire (if used)

Incoming

Power Cord

Figure 10. Incoming ground and hot wires

4. Make sure wires have enough slack between

strain relief and terminal connections so they are not pulled tight or stretched, then tighten strain relief to secure cord.

connected.

Note: The strain relief must be tightened

against the outer jacket of the cord. Avoid over-tightening the strain relief or it may crush the cord and cause a short.

L1 L2 L3

L1 L2 L3 U1 V1 W1

L1 L2 L3

Hot Wires

Connected

U1 V1

U1 V1 W1

Incoming Power

Strain Relief

Figure 9. Electrical box with panel cover

removed.

Model G0793 (Mfd. Since 02/15)

5. Test strain relief to ensure it is properly tight-

ened by pulling cord from outside box with light-to-moderate force. When strain relief is properly tightened, cord will not move inside cabinet.

6. Install NEMA 15-15 plug on other end of

power cord per plug manufacturer's instructions.

7. Re-install main electrical panel cover.

-17-

3. Turn master power switch to ON position.

To avoid unexpected start-up, keep Emergency Stop Reset button pressed in until instructed otherwise in Test Run.

8. Insert power cord plug into a matching power

supply receptacle. The machine is now connected to the power source.

Test Run

Once the preceding setup procedures are complete, test run your machine to make sure it runs properly and is ready for regular operation.

The test run consists of verifying the following: 1) The motor powers up and runs correctly, 2) the motor rotates in the correct direction (machine is not wired out of phase), 3) the EMERGENCY STOP button stops spindle rotation, 4) the chip guard safety feature works correctly, and 5) the coolant system works correctly.

If, during the test run, you cannot easily locate the source of an unusual noise or vibration, stop using the machine immediately, then review

Troubleshooting on Page 37.

4. Press EMERGENCY STOP button, then twist

it clockwise so it pops out. When button pops out, switch is reset and ready for operation (see Figure 11).

Spindle

Master Power

Switch

Coolant

Pump

Switch

Spindle

Stop

Button

Figure 11. Controls for testing the drill press.

5. Verify machine is operating correctly by turn-

ing spindle speed/direction switch to L1 position and pressing spindle start button (see Figure 11).

— When operating correctly, machine runs

smoothly with little or no vibration or rubbing noises.

Speed/Direction

Switch

EMERGENCY

STOP Button

Spindle

Start

Button

BIOLOGICAL & POISON

HAZARD! Use the correct personal protection equipment when handling coolant. Follow federal, state, and fluid manufacturer requirements for proper disposal.

To test run machine:

1. Make sure all tools and objects used during

setup are cleared away from machine.

2. Make sure machine is properly lubricated (see Page 33).

— Investigate and correct strange or unusu-

al noises or vibrations before operating machine further. Always stop machine and disconnect from power before investigating or correcting potential problems.

6. Verify oil is flowing through headstock by

examining oil-flow sight glass for oil movement (see Page 34).

7. Verify spindle rotates from right to left (as

standing in front of machine). This is correct direction of rotation for L1 setting on spindle speed/direction switch.

-18-

Model G0793 (Mfd. Since 02/15)

Due to high voltage and risk of serious shock involved, we strongly recommend

this procedure be done by an electrician or qualified service personnel.

— If spindle rotates from left to right (as stand-

ing in front of machine), phase polarity of incoming power supply is reversed. Stop spindle and DISCONNECT MACHINE FROM POWER! Remove electrical panel cover, swap wires at L1 and L3 terminals (see Figure 12) then re-install electrical panel cover and reconnect machine to power.

10. Attempt to start spindle rotation. Spindle

should not start.

— If spindle rotation does start with chip

guard open, safety switch is not operating correctly. This safety feature must operate properly before continuing operation. Turn master power switch to OFF position, disconnect machine from power, and call Tech Support for help.

11. Close chip guard.

12. Aim coolant nozzle into trough, and use cool-

ant pump switch on control panel to start pump (see Figure 11 on Page 18).

L1 and L3 Terminals

Figure 12. Location of L1 and L3 terminals for

incoming power.

8. Press EMERGENCY STOP button to turn machine OFF, then, without resetting the EMERGENCY STOP button, try to restart spindle rotation. Spindle should not start.

— If spindle rotation does start with

EMERGENCY STOP button pressed in, EMERGENCY STOP button safety is not operating correctly. This safety feature must operate properly before continuing operation. Turn master power switch to OFF position, disconnect machine from power, and call Tech Support for help.

9. Twist EMERGENCY STOP to reset, and press Spindle Stop Button. Open chip guard to activate safety switch, which should prevent the spindle from starting.

13. Open ball valve (see Figure 13). Verify cut-

ting fluid flows from nozzle, then turn pump OFF and close ball valve.

Ball Valve

Figure 13. Location of coolant ball valve.

Congratulations! The test run is complete. Perform the following Spindle Break-In procedure.

Model G0793 (Mfd. Since 02/15)

-19 -

Spindle Break-In

The spindle break-in procedure distributes lubrication

reduce the risk

of early

if there are any "dry" spots or areas where lubrication has settled in the bearings. You

efore

placing

for the first time when the machine is new or if it has been sitting idle for longer than 6 months.

Always start the spindle break-in at the lowest speed to minimize wear if there Allow the spindle to run long enough to warm up and distribute the bearing grease, then incrementally increase spindle speeds and repeat this process at each speed until reaching the maximum spindle speed. Following the break-in procedure in this progressive manner helps minimize any potential wear that could occur before lubrication is fully distributed.

throughout the bearings to

bearing failure

must complete this procedure b

operational loads on the spindle

are dry spots.

To perform spindle break-in procedure:

1. Set drilling/tapping switch to "drilling" position

(see Figure 14).

Speed

Control

Levers

Drilling/

Spindle

Speed/

Direction

Switch

Spindle

Stop Button

Figure 14. Drilling/tapping switch.

2. Run spindle at 60 RPM for 10 minutes (see Setting Spindle Speed on Page 25 for

details on how to change speeds).

Tapping

Switch

Spindle

Start Button

Complete the spindle bearing break-in procedure to prevent rapid wear and tear of spindle components once the drill press is placed into operation.

DO NOT perform this procedure independently of the Test Run section. The drill press could be seriously damaged if the controls are set differently than instructed in that section.

-20-

3. Reverse spindle rotation direction and run spindle for an additional 10 minutes.

4. Run spindle for 5 minutes in each direction of spindle rotation. Run following speeds: 90, 120, 260, 600, 1220, and 1740 RPM. Make sure to only increase speeds in the order shown.

Congratulations! Spindle break-in is complete. We recommend changing the headstock and gearbox oil before operating the machine further (refer to Lubrication on Page 33).

Model G0793 (Mfd. Since 02/15)

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

more about specific operations, manual,

training from experienced machine operators 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.

intended to be an instructional guide. To learn

read this entire

seek additional

, and do additional research

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.

Model G0793 (Mfd. Since 02/15)

1. Examines workpiece to make sure it is suit-

able for drilling.

2. Puts on required safety glasses and face

shield.

3. Firmly secures workpiece to table using vise

or T-slot clamps.

4. Installs correct cutting tool for operation.

5. Adjusts table to correct height, then locks it in

place.

6. Connects machine to power, and turns mas-

ter power switch ON.

7. Selects spindle RPM and direction with spin-

dle speed levers and spindle speed/direction switch. Then presses Spindle Start button.

8. Begins drilling.

9. When finished, presses Spindle Stop button

and disconnects machine from power.

-21-

Installing/Removing

Tooling

This machine has an MT#4 spindle for installing tooling. It is also equipped with an automatic drift for easy removal of tooling (see Figure 16). Additionally, a drift key is included to manually remove the tooling from the spindle, if needed.

The Model G0793 includes the following spindle tools (see Figure 15):

A. B16 Drill Chuck w/MT#4–R-8 Arbor. Refer

to Arbor/Chuck Assembly on Page 16.

B. MT#4–MT#3 Spindle Sleeve. Used for MT#3

tools and will accommodate tools with a tang. It also has a drift key slot for tool removal.

C. MT#4–MT#2 Spindle Sleeve. Used for MT#2

tools and will accommodate tools with a tang. It also has a drift key slot for tool removal.

Installing Tapered Tooling

1. DISCONNECT MACHINE FROM POWER!

2. Clean tooling and spindle tapers to ensure

proper seating.

3. Insert MT#4 tooling into spindle, and maneuver tang (see Figure 15) until it engages with slot at end of spindle.

4. Use rubber or wooden mallet to seat tooling into spindle by firmly tapping from bottom.

Note: If installing a drill chuck, make sure to

retract jaws to prevent damage to chuck.

Removing Tooling with Automatic Drift

1. DISCONNECT MACHINE FROM POWER!

2. Lower spindle with coarse downfeed handle

until you can press in automatic drift knob (see Figure 16).

D. Drift Key: Use for tool removal.

Tang

Figure 15. Drill chuck, arbor, spindle sleeves,

and drift key included with Model G0793.

Cutting tools are sharp and can easily cause laceration injuries. Always protect your hands with leather gloves or shop rags when handling cutting tools.

B C

Drift Key Slot

Automatic Drift Knob

Figure 16. Location of automatic drift knob.

Leaving the automatic drift knob pressed in can result in the arbor coming free the next time it is inserted into the spindle sleeve. An improperly installed arbor can become a projectile and result in serious injury to operator or others nearby. Always verify arbor is correctly installed before beginning drilling operations.

-22-

Model G0793 (Mfd. Since 02/15)

3. While holding tooling, raise spindle to origi-

nal position. Tooling should automatically release from spindle.

Depth Stop

4. Pull automatic drift knob to OUT position.

Removing Tooling Manually

1. DISCONNECT MACHINE FROM POWER!

2. Lower quill and rotate spindle by hand until

drift key holes in spindle and quill are aligned (see Figure 17).

Drift Key

Hole

Quill

This drill press includes a depth stop for drilling multiple holes to the same depth.

To set depth stop:

1. DISCONNECT MACHINE FROM POWER!

2. Adjust table height so workpiece is close to

tooling.

3. Mark side of workpiece at intended cutting depth (see Figure 19 ).

Workpiece

Scrap Wood

Drill Bit

Workpiece

Depth

Mark

Table

Figure 17. Spindle and quill drift key holes

aligned.

3. Insert drift key into aligned holes and allow

quill to rise, trapping drift key.

4. Use rubber or wooden mallet to softly tap end

of key while holding arbor/chuck assembly until it separates from spindle (see Figure

18).

Figure 19. Depth stop mark on workpiece.

4. Secure workpiece and scrap wood to table

with a clamp or vise.

5. Lower spindle until tip of bit is even with mark.

6. Loosen depth stop knob and position so it

rests on downfeed engagement lever, then tighten depth stop knob (see Figure 20).

Depth Stop

Knob

Downfeed

Engagement

Lever

Figure 18. Using drift key to remove arbor.

Model G0793 (Mfd. Since 02/15)

Figure 20. Setting depth stop knob.

-23-

7. Return spindle to up position.

Note: Drill a hole into scrap stock before drill-

ing into any workpiece to ensure the depth has been set correctly. If necessary, repeat

Ste ps 1–7.

Positioning Table

The table for this drill press moves vertically and rotates 360 degrees around the column to accommodate larger workpieces.

Raising/Lowering Table

1. Remove all objects from table surface.

2. Loosen lock handles shown in Figure 21.

3. Adjust table height by rotating height adjust- ment crank (see Figure 21).

Spindle Speed

Using the correct spindle speed is important for safe and satisfactory results, as well as maximizing tool life.

To set the spindle speed for your operation, you will need to: 1) Determine the best spindle speed for the operation, and 2) configure the spindle speed levers to produce the required spindle speed.

Determining Spindle Speed

Many variables affect the optimum spindle speed to use for any given operation, but the two most important are the recommended cutting speed for the workpiece material and the diameter of the cutting tool, as noted in the formula shown in Figure 22.

Lock

Handles

Height

Adjustment

Crank

Figure 21. Location of column lock handles and

height adjustment crank.

Rotating Table

1. Remove all objects from table surface.

2. Loosen lock handles (see Figure 21).

3. Push table to desired location, and guide rack

on side of column will follow.

4. Tighten lock handles.

*Recommended

Cutting Speed (FPM) x 12

Tool Dia. (in inches) x 3.14

Spindle

Speed (RPM)

*Double if using carbide cutting tool

Figure 22. Spindle speed formula for mill/drills.

Cutting speed, typically defined in feet per minute (FPM), is the speed at which the edge of a tool moves across the material surface.

A recommended cutting speed is an ideal speed for cutting a type of material in order to produce the desired finish and optimize tool life.

The books Machinery’s Handbook or Machine Shop Practice, and some internet sites, provide excellent recommendations for which cutting speeds to use when calculating the spindle speed. These sources also provide a wealth of additional information about the variables that affect cutting speed and they are a good educational resource.

Also, there are a large number of easy-to-use spindle speed calculators that can be found on the internet. These sources will help you take into account the applicable variables in order to determine the best spindle speed for the operation.

-24-

Model G0793 (Mfd. Since 02/15)

Setting Spindle Speed

The chart below explains how to position the spindle speed/direction switch and spindle speed levers to set the desired spindle speed.

The spindle speed/direction switch can be set to speed 1 or 2 for both left and right spindle directions. The direction of the spindle does not factor into the spindle speed.

Note: If the levers will not move to the desired position, rotate the spindle by hand while applying pressure on the lever. When the gear teeth align, the lever will move into place.

Change spindle speed ONLY when spindle is completely stopped. Otherwise, machine damage could occur.

With the spindle completely stopped, position the spindle speed levers and spindle speed/direction switch (see Figure 23) to set the spindle speed.

Spindle Speed Chart

Spindle

Speed

60 RPM 1 A D

90 RPM 1 A E

120 RPM 2 A D

130 RPM 1 A F

150 RPM 1 B D

180 RPM 2 A E

215 RPM 1 B E

260 RPM 2 A F

300 RPM 2 B D

310 RPM 1 B F

415 R PM 1 C D

440 RPM 2 B E

600 RPM 1 C E

625 RPM 2 B F

830 RPM 2 C D

870 RPM 1 C F

1220 RPM 2 C E

1740 RPM 2 C F

Spindle

Speed

Switch

Speed

Lever

A–C

Speed

Lever

D–F

Spindle Speed

Lever D–F

Figure 23. Spindle speed controls.

Spindle Speed

Lever A–C

Spindle

Speed/Direction

Switch

Model G0793 (Mfd. Since 02/15)

-25-

Calculating Spindle Speed for Drilling

Using the Drilling Speed Chart

The chart shown in Figure 24 is intended as a 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 oper ator.

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 ............................................Soapy Water

Brass ...............................Water-Based Lubricant

Aluminum ..................... Paraffin-Based Lubricant

Mild Steel ............................. Oil-Based Lubricant

Larger bits turning at slower speeds tend to grab the workpiece aggressively. This can result in the operator's hand being pulled into the bit or the workpiece being thrown with great force. Always clamp the workpiece to the table to prevent injuries.

-26-

Figure 24. Drilling speed chart.

Model G0793 (Mfd. Since 02/15)

Drilling Mode

2. Clamp workpiece to table, and adjust depth

stop for needed depth of cut.

This drill press is designed for vertical drilling and tapping operations. For repeated drilling at the same depth, there is a power downfeed mechanism.

Overloading tools or using excessive spindle speeds may cause parts or broken tools to hit operator, resulting in serious impact injuries.

To drill a workpiece:

1. Refer to Controls & Components on Page 4

to understand control functions.

Master Power

Switch

Drilling/Tapping

Switch

Note: Drilling with quill fully extended can

cause tool chatter. For maximum spindle rigidity, keep spindle retracted into headstock as far as possible.

3. Put on safety glasses, a face shield, and

close chip guard.

4. Turn drilling/tapping switch left to select "drilling" mode (see Figure 25).

5. Refer to Calculating Spindle Speed for Drilling on Page 26, and choose closest

available spindle RPM.

6. Turn master power switch to ON position.

7. Ensure EMERGENCY STOP button is not

pushed in.

8. Press Spindle Start button and begin drilling operation.

Spindle Start

Button

Figure 25. Controls for drilling.

Model G0793 (Mfd. Since 02/15)

-27-

Auto-Feed

This drill press comes with automatic downfeed control for repeated drilling operations at the same depth. The automatic downfeed only works in the drilling mode.

Stay clear of coarse downfeed handles while using automatic downfeed. When depth stop triggers lower elevation limit switch, handles spin rapidly as spindle returns to its starting position. Failure to stay clear of handles may result in injury.

Adjustment

Knob

Figure 26. Automatic downfeed adjustment

knob.

5. Reconnect machine to power.

Downfeed

Option Lines

To operate automatic powered downfeed:

1. DISCONNECT MACHINE FROM POWER!

2. Turn drilling/tapping switch left to select "drill-

ing" mode.

3. Set spindle depth stop (refer to Page 23 if

necessary).

4. Match lines on adjustment knob (see Figure

26) to select automatic powered downfeed

option as follows:

• 0.2 = 0.20mm of downfeed/rotation.

• 0.1 = 0.10mm of downfeed/rotation.

• 0.0 disengages downfeed mechanism.

6. Turn master power switch to ON position, ensure EMERGENCY STOP button is not pressed in, and press Spindle Start button.

7. Push downfeed engagement lever (see Figure 27) up to activate automatic downfeed.

Note: If set correctly, depth stop will push

downfeed engagement lever down and automatically disengage powered downfeed.

Downfeed

Engagement

Lever

-28-

Figure 27. Location of downfeed engagement

lever.

8. Test on piece of scrap metal to verify repeatability.

Model G0793 (Mfd. Since 02/15)

Tapping Mode

Coolant System

When in tapping mode, the spindle direction can immediately alternate between forward and reverse by pressing the spindle reverse button on the control panel. This feature is critical to back the tap out of a hole before it bottoms out and snaps off, as well as clearing away waste chips during the tapping process.

Note: Pilot holes must be drilled prior to beginning any tapping operation.

To use tapping mode:

1. DISCONNECT MACHINE FROM POWER!

2. Determine maximum tapping depth without

bottoming-out tap, and adjust depth stop accordingly.

3. Secure workpiece to table.

4. Put on safety glasses and face shield.

5. Install tap, and apply tapping fluid to contact

point of tap and workpiece.

6. Connect machine to power.

7. Turn drilling/tapping switch left to select "tap-

ping" mode (see Figure 25 on Page 27).

This machine comes with a coolant system for use in drilling and tapping operations. This feature promotes precision cutting and tool longevity.

To operate coolant system:

1. Check there is a sufficient amount of clean

coolant in reservoir (refer to Page 36 for detailed instructions).

2. Aim coolant nozzle at contact area of workpiece and the cutting tool.

3. Turn coolant pump switch on control panel to ON position.

4. Regulate coolant flow to contact area using coolant ball valve shown in Figure 28.

8. Select appropriate spindle speed and spindle

rotation.

9. Press Spindle Start button.

10. Begin threading. Without disengaging tap

from threads, frequently alternate spindle rotation with Spindle Reverse Button to eject chips from hole and prevent galling and tap breakage.

11. Press Spindle Reverse button when spindle

depth stop contacts downfeed engagement lever, and remove tap from workpiece.

Model G0793 (Mfd. Since 02/15)

Coolant Ball

Valve

Figure 28. Location of coolant ball valve for

regulating coolant flow.

-29-

SECTION 5: ACCESSORIES

order online at www.grizzly.com or call 1-800-523-4777

Installing unapproved accessories may

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.

G3658—TiN-Coated 115-Pc. Drill Bit Set

Titanium nitride-coated bits last up to six times as long as uncoated bits. This 115-piece set features 29 fractional bits, from 1⁄6" to 1⁄2 " in increments of 1⁄64", letter bits from A–Z, and 60 number bits. Housed in a rugged steel case.

G1076—58-Pc. Clamping Kit

Each clamping kit includes: (24) studs (four studs each: 3", 4", 5", 6", 7", and 8" long), (12) step blocks 3 sizes, (6) T-nuts, (6) flange nuts, (4) coupling nuts, and (6) end hold-downs. The Model G1076 set fits 5/8" T-slots and includes 1/2"-13 studs.

Figure 31. G1076 Clamping Kit.

Basic Eye Protection

T20501—Face Shield Crown Protector 4" T20502—Face Shield Crown Protector 7" T20503—Face Shield Window T20451—“Kirova” Clear Safety Glasses T20452—“Kirova” Anti-Reflective S. Glasses T20456—DAKURA Safety Glasses, Black/Clear

Figure 29. Model G3658 115-Pc. Drill Bit Set.

T24867— 28-Pc. Transfer Punch Set

Figure 30. T24867 Transfer Punch Set.

T20502

T20503

T20456

Figure 32. Assortment of basic eye protection.

T20452

T20451

-30-

Model G0793 (Mfd. Since 02/15)

T23962—ISO 68 Moly-D Way Oil, 5 Gal.

order online at www.grizzly.com or call 1-800-523-4777

T23963—ISO 32 Moly-D Machine Oil, 5 Gal. T26685—ISO 32 Moly-D Machine Oil, 1 Gal.

Moly-D oils are some of the best we've found for maintaining the critical components of machinery because they tend to resist run-off and maintain their lubricity under a variety of conditions—as well as reduce chatter or slip. Buy in bulk and save with 1- or 5-gallon quantities.

H7617—High-Pressure Oil Can, 5 Oz. with Flex Nozzle

Whether you're lubricating cutting tools or maintaining machinery in top operating condition, you'll appreciate this High-Pressure Oil Can. Holds 5 ounces of oil and has a trigger activated, high pressure pump. Colors may vary.

T23962 T23963 T26685

Figure 33. ISO 68 and ISO 32 machine oil.

T23964—Armor Plate with Moly-D MultiPurpose Grease, 14.5 oz. (NLGI#2 Equivalent)

Armor Plate with Moly-D is a rich green moly grease that provides excellent stability and unsurpassed performance under a wide range of temperatures and operating conditions. Armor Plate grease is entirely unique due to the fact that the moly in it is solubilized, which provides superior performance to other greases containing the black solid form of molybdenum disulfide.

Figure 35. H7617 High-Pressure Oil Can.

G7156—4" (3 G7154—5" (4 G7155—6" (5

⁄8") Precision Milling Vise

⁄2") Precision Milling Vise

⁄8") Precision Milling Vise

Swiveling Milling Vises feature perfectly aligned,

precision ground jaws, large Acme

screws and

easy to read 0°–360° scales.

Figure 36. Prescision Milling Vise.

Figure 34. T23964 Armor Plate with Moly-D

Multi-Purpose Grease.

Model G0793 (Mfd. Since 02/15)

-31-

SECTION 6: MAINTENANCE

To reduce risk of shock or accidental startup, always disconnect machine from

Cleaning and

Protecting

power before adjustments, maintenance, or service.

Schedule

For optimum performance from your machine, follow this maintenance schedule and refer to any specific instructions given in this section.

Daily Check:

• Loose mounting bolts or fasteners.

• Worn, frayed, cracked, or damaged wires.

• Chip guard removed.

• EMERGENCY STOP button not working correctly or not requiring you to reset it before starting the machine again.

• Clean debris and built up grime off of machine.

• Any other unsafe condition.

Every 8 Hours:

• Lubricate ball oilers (Page 35).

• Check/Add headstock oil (Page 33).

• Check quantity/quality of coolant (Page 36).

Sawdust, woodchips, and metal chips left on the machine will invite oxidation and a gummy residue build-up around the moving parts. Use a brush and shop vacuum to remove chips and debris from the working sur- faces of the drill press. Never blow off the drill press with compressed air, as this will force metal chips deep into the mechanisms and may cause injury to yourself or bystanders.

Remove any rust build-up from unpainted cast iron surfaces of your mill and treat them with a non-staining lubricant after cleaning.

Keep unpainted cast iron surfaces rust-free with regular applications of products like G96 Gun Treatment, SLIPIT Figure 37 and the Grizzly catalog or website).

, or Boeshield® T-9 (see

Every 90 Hours:

• Lubricate column rack (Page 35).

Annually:

• Change headstock oil (Page 33).

• Disconnect machine from power, open electrical box, and clean with compressed air.

-32-

H3788

Gun

G96 Trea tme nt

Figure 37. Products to clean and protect

unpainted cast iron surfaces.

G2870

Boeshield

Model G0793 (Mfd. Since 02/15)

T-9

G5563

SLIPIT

Lubrication

For the quill, table, and column, an occasional application of light machine oil is all that is necessary. Before applying lubricant, clean off any dust or metal chips.

To change oil in headstock:

1. Remove oil fill plug on top of headstock (see Figure 38).

Oil Fill Plug

Your goal is to achieve adequate lubrication. Too much lubrication will attract dirt and dust. Various parts of your machine could lose their freedom of movement as a result.

Headstock

Oi l Ty pe ......Model T23963 or ISO 68 Equivalent

Oil Amount ........................................... 4

Lubrication Frequency ........................... Annually

The headstock uses ISO 68 machine oil to lubricate the gears.

The headstock is equipped with two different sight glasses: an oil-level sight glass to indicate when the proper amount of oil is in the headstock, and an oil-flow sight glass to verify oil is circulating properly in the headstock.

With the machine operating, it may take 1–2 minutes before the oil-flow sight glass shows the oil. If oil is not circulating, and the headstock has the proper amount of oil, immediately shut down machine, and troubleshoot before proceeding with any additional operations. The oil MUST be properly circulating or headstock components will become damaged from lack of lubrication.

⁄4 quarts

Oil-Flow

Sight Glass

Oil Drain Plug

Oil-Level

Sight Glass

Figure 38. Headstock oil fill and drain locations.

2. Position drain pan under drain plug and then

remove drain plug. Allow old oil to drain into drain pan.

3. Replace and tighten drain plug.

DO NOT fill headstock with oil above red mark. This could damage machine and create an overflow of oil.

The amount of oil in the headstock must be regularly monitored before each operation to ensure it doesn't drop below the oil-level sight glass visibility. The headstock has the proper amount of oil when the oil-level sight glass is halfway full. Headstock oil must be changed on an annual basis to ensure proper lubricity of oil.

Tools Needed Qty

Open End Wrench 6mm .................................... 1

Open End Wrench 8mm .................................... 1

Drain Pan (2-Gallon or Larger) .......................... 1

Model G0793 (Mfd. Since 02/15)

-33-

4. Fill headstock with oil to red mark on sight glass (see Figure 39).

Oil-Level

Red Mark

Sight Glass

Figure 39. Red mark on sight glass indicates

headstock oil level is full.

Downfeed Gearbox

Oi l Ty pe ......Model T23963 or ISO 32 Equivalent

Oil Amount ...............................................

Lubrication Frequency ........................... Annually

The gear box uses an oil pump to lubricate the gears. For this machine, use ISO 32 machine oil. Check the oil level every day (see Step 4). Change oil annually.

Tools Needed Qty

Hex Wrench 6mm .............................................. 1

Hex Wrench 8mm .............................................. 1

Drain Pan (2-Gallon or Larger) .......................... 1

To change oil in gearbox:

⁄2 quart

5. Re-install oil fill plug.

6. Discard used oil following federal, state,

and fluid manufacturer guidelines for proper disposal.

1. Remove oil fill plug on top of the gearbox (see Figure 40).

Sight Glass

Oil Fill Plug

Oil Drain Plug

Figure 40. Gearbox oil fill, drain and sight glass

locations.

2. Position drain pan under drain plug and then remove drain plug. Allow old oil to drain into drain pan.

-34-

3. Replace and tighten drain plug.

4. Fill headstock with oil to red mark on sight glass (see Figure 40).

Do not fill gearbox with oil above red mark. This could damage the machine and create an overflow of oil.

Model G0793 (Mfd. Since 02/15)

Ball Oilers

Oi l Ty pe ......Model T23963 or ISO 32 Equivalent

Oil Amount ......................................... 1–2 Pumps

Lubrication Frequency ........8 Hours of Operation

Column Rack

Gre ase Typ e ......... NLGI#2 Grease or Equivalent

Grease Amount ....................................Thin Coat

Lubrication Frequency ......... 90 hrs. of Operation

This machine has four ball oilers, as shown in Figures 41–42. Use an oil gun fitted with a tip wide enough to seal the ball oiler inlet. We do not recommend using metal needle or lance-type tips, as they can push the ball too far into the oiler, break the spring seat, and lodge the ball in the oil gall ey.

Push the tip of the oil can nozzle against the ball oiler to create a hydraulic seal, then pump the oil can once or twice. If you see sludge and contaminants coming out of the lubrication area, continue pumping the oil can until the oil runs clear. When finished, wipe away the excess oil.

Ball Oilers

Move the table up and down to gain full access to the column racks (see Figures 43), then clean the teeth with mineral spirits, shop rags, and a brush.

Column

Rack

Figure 43. Column rack location.

When dry, use a brush to apply a thin coat of grease to the teeth, then raise/lower the headstock and table to distribute the grease.

Note: To help prevent rust, re-apply ISO 32 oil to the column smooth surfaces that were removed during the cleaning process.

Figure 41. Table support bracket ball oiler

locations.

Ball Oilers

Figure 42. Headstock ball oiler locations

Model G0793 (Mfd. Since 02/15)

-35-

Adding/Changing

Coolant

Coolant is consistently cycled and stored in the base reservoir beneath the pump. For efficient operation and tool longevity, replace coolant when it runs low or becomes dirty from excessive use.

BIOLOGICAL & POISON

HAZARD! Use the correct personal protection equipment when handling coolant. Follow federal, state, and fluid manufacturer requirements for proper disposal.

To replace coolant:

1. Pump coolant into an empty 5-gallon bucket.

As soon as coolant stops coming out, shut off coolant pump.

2. DISCONNECT MACHINE FROM POWER!

3. Put on Personal Protective Equipment.

Loosen cap screws and remove reservoir lid (see Figure 44).

Items Needed: Qty

Goggles ............................................................. 1

Gloves ............................................................... 1

Respirator .......................................................... 1

Empty 5-Gallon bucket ...................................... 1

New Coolant ...........................................1 Gallon

Hex Wrench 8mm .............................................. 1

Disposable Shop Rags ...................... As Needed

Coolant Reservoir

Lid

Figure 44. Coolant reservoir location.

4. Use a wet/dry shop vacuum to remove any

coolant and debris from inside reservoir.

5. Refill reservoir with fresh coolant.

6. Replace reservoir lid and re-tighten cap

screws.

-36-

Tip: Place a couple of rare earth magnets

in coolant reservoir under drain to attract small metallic pieces and prevent them from cycling through pump.

Model G0793 (Mfd. Since 02/15)

Review the troubleshooting procedures in this section if a problem develops with your machine. If you need

the

serial number and manufacture date of your machine before calling.

SECTION 7: SERVICE

replacement parts or additional help with a procedure, call our Technical Support. Note: Please gather

Troubleshooting

Motor & Electrical

Symptom Possible Cause Possible Solution

Machine does not start or a breaker trips

Machine stalls, lacks power or is overloaded.

Machine has vibration or noisy operation.

Lamp will not light. 1. Master power switch not turned on.

Tapping mode does not work.

1. Emergency stop button engaged/at fault.

2. Master power switch off/at fault.

3. Chip guard open/limit switch at fault.

4. Incorrect power supply or incoming connections.

5. Power supply circuit breaker tripped.

6. Plug/receptacle at fault/wired incorrectly.

7. Motor connection wired incorrectly.

8. Wiring open/has high resistance.

9. Motor or motor components at fault.

1. Feed rate/cutting speed too fast.

2. Machine is undersized or tooling is incorrect for the task.

3. Motor bearings are at fault.

4. Motor overheats.

5. Motor or motor components at fault.

1. Excessive depth of cut.

2. Tooling is loose or improperly installed.

3. Tooling is dull or chattering.

4. Machine is incorrectly anchored or sits unevenly.

5. Motor or machine component is loose.

6. Motor fan is rubbing on fan cover.

7. Motor bearings are at fault.

2. Bulb is burned out.

3. Short in wiring or wired incorrectly.

1. Machine is not in "Tapping Mode."

2. Shorted/disconnected wiring.

1. Rotate button to reset/replace it.

2. Turn master power switch to ON position/replace it.

3. Close guard/replace limit switch.

4. Ensure power supply is correct voltage (Page 10), and connected properly (Page 17).

5. Ensure circuit size is correct/replace weak breaker.

6. Test for good contacts; correct the wiring.

7. Correct motor wiring connections (Page 46).

8. Check/ﬁx broken, disconnected, or corroded wires.

9. Test/repair/replace.

1. Decrease feed rate/cutting speed.

2. Use smaller or sharper tool; reduce feed rate or spindle speed; use coolant if possible.

3. Test by rotating shaft; rotational grinding/loose shaft requires bearing replacement.

4. Clean off motor, let cool, and reduce workload.

5. Test/repair/replace motor.

1. Decrease depth of cut.

2. Make sure tooling is properly secured.

3. Replace/resharpen tooling; index bit to workpiece; use appropriate feed rate and cutting RPM.

4. Tighten/replace anchors; relocate/shim machine.

5. Inspect/replace stripped or damaged bolts/nuts, and re-tighten with thread locking ﬂuid.

6. Replace dented fan cover or damaged fan.

7. Test by rotating shaft; rotational grinding/loose shaft requires bearing replacement.

1. Turn master power switch to ON position.

2. Replace bulb.

3. Trace and test wiring. Fix any errors.

1. Rotate switch to "Tapping Mode."

2. Inspect circuit boards, wiring connections. Replace/ repair as necessary.

Model G0793 (Mfd. Since 02/15)

-37-

Symptom Possible Cause Possible Solution

Spindle rotates in wrong direction.

Coolant pump doesn't work.

1. Phase polarity reversed at incoming power connections.

2. Spindle motor or speed/direction switch wired incorrectly.

1. Inadequate ammount of coolant in reservoir.

2. Emergency stop button engaged/at fault.

3. Master power switch off/at fault.

4. Coolant pump hose clogged with debris.

5. Coolant pump switch at fault.

6. Coolant pump at fault.

1. Correct incoming power connections (Page 17).

2. Verify spindle motor (Page 46) and speed/direction switch wiring (Page 44).

1. Add or change coolant in reservoir (Page 36)

2. Rotate button to reset/replace it.

3. Turn master power switch to ON position/replace it.

4. Clean coolant pump and replace coolant (Page 36).

5. Replace coolant pump switch.

6. Replace coolant pump.

Drill Press Operations

Symptom Possible Cause Possible Solution

Tool loose in spindle. 1. Cutting tool is not fully drawn up into

spindle taper.

2. Debris on tool or in spindle taper

3. Taking too big of a cut.

Breaking tools or cutters.

Workpiece or tool vibrates or chatters during operation.

Bad surface ﬁnish. 1. Spindle speed/feed rate is too fast.

Spindle overheats. 1. Poor spindle bearing lubrication.

Thread is not smooth.

Tool Breakage. 1. Wrong tap choice.

Oil not ﬂowing in oilﬂow sight glass

1. Spindle speed/feed rate is too fast.

2. Cutting tool is too small.

3. Cutting tool getting too hot.

4. Taking too big of a cut.

5. Spindle extended too far down.

1. Table locks not tight.

2. Workpiece not secure.

3. Spindle speed/feed rate is too fast.

4. Spindle extended too far down.

5. Quill lock lever not tight.

2. Dull or incorrect cutting tool.

3. Wrong rotation of cutting tool.

4. Workpiece not secure.

5. Spindle extended too far down.

2. Spindle bearings too tight.

3. Machine operated at high speeds for extended period.

1. Cutting edge chipped on cutting tool.

2. Cutting tool not centered.

3. Chip packing.

4. Galling.

2. Improper or no lubricant.

3. Misalignment between tap and pilot hole.

4. Cutting tool/bit is worn.

5. Wrong size pilot hole.

1. Headstock oil low/out.

2. Headstock oil pump at fault.

1. Tighten drawbar.

2. Clean cutting tool and spindle taper.

3. Lessen depth of cut and allow chips to clear.

1. Set spindle speed correctly or use slower feed rate.

2. Use larger cutting tool and slower feed rate.

3. Use coolant or oil for appropriate application.

4. Lessen depth of cut and allow chips to clear.

5. Fully retract spindle and raise table instead.

1. Tighten table locks.

2. Properly clamp workpiece on table or in vise.

3. Set spindle speed correctly or use slower feed rate.

4. Fully retract spindle and raise table instead.

5. Tighten quill lock lever.

1. Set spindle speed correctly or use slower feed rate.

2. Sharpen cutting tool or select better one for task.

3. Check for proper cutting tool rotation.

4. Properly clamp workpiece on table or in vise.

5. Fully retract spindle and raise table instead.

1. Lubricate spindle bearings.

2. Properly adjust spindle bearing preload.

3. Allow machine to cool.

1. Replace tool.

2. Center tool.

3. Use spiral point/spiral ﬂuted taps and or reduce the number of ﬂutes to provide extra chip room.

4. Use proper coolant; reduce tapping speed.

1. Select better tap for task.

2. Use proper lubricant for operation.

3. Fix alignment between tap and pilot hole.

4. Sharpen cutting tool/replace.

5. Adjust pilot hole size accordingly.

1. Replace headstock oil (Page 33).

2. Replace headstock oil pump.

-38-

Model G0793 (Mfd. Since 02/15)

Replacing Lamp

Adjusting Torque

Bulb

The work lamp bulb in this machine is a 24V 25W two-pronged halogen bulb. The replacement part number for the bulb is P0756418-1.

Tool Needed Qty

Phillips Head Screwdriver #2 ............................ 1

To replace bulb in work lamp:

1. DISCONNECT MACHINE FROM POWER!

2. Use a Phillips head screwdriver to remove

(3) Phillips head screws that hold work lamp cover in place.

3. Remove (2) Phillips head screws on metal

housing.

4. Remove bulb (see Figure 45).

Limiter

The torque limiter regulates how much torque is applied to the drive shaft of the drill press to prevent the machine from mechanical overload. It was adjusted at the factory according to the maximum axial load.

Eventual wear on the limiter discs may require compensatory adjustment to the torque limiter.

Tools Needed Qty

Hex Wrench 4mm .............................................. 1

Hex Wrench 5mm .............................................. 1

Overtightening can break the torque limiter. Make less than quarter turn adjustments at one time.

Figure 45. Work lamp bulb replacement.

5. Insert new bulb and replace metal housing

and work lamp cover.

To adjust torque limiter:

1. DISCONNECT MACHINE FROM POWER!

2. Remove two cap screws that hold plastic

cover on side of headstock.

3. Set automatic downfeed knob to 0.1, then

rotate spindle by hand until set screw on torque limiter is visible (see Figure 46).

Torque Limiter

Set Screw

Model G0793 (Mfd. Since 02/15)

Figure 46. Torque limiter and set screw.

4. Turn set screw less than a quarter of a turn.

One small adjustment should compensate for any wear on limiter disc.

-39-

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

number and manufacture date of your

machine before calling. This information can be found on the main machine label.

SECTION 8: WIRING

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. 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.

-40-

Model G0793 (Mfd. Since 02/15)

Master

Power

Switch

Page 42

Electrical

Panel

Page 42

Wiring Overview

Control Panel

Page 44

Work Lamp

Hot

Ground

Elevation Limit

Switches

Page 44

Chip Guard

Limit Switch

Page 44

Spindle Motor

Page 46

Coolant Pump

Motor Page 46

Component Location

Spindle Motor

Page 46

Master Power

Switch

Page 42

Electrical

Panel

Page 42

Hot

220 VAC

3-Phase

15-15 PLUG

(as recommended)

Control Panel

Page 44

Elevation Limit

Switches

Page 42

Chip Guard

Limit Switch

Page 42

Coolant

Pump

Page 46

Model G0793 (Mfd. Since 02/15)

READ ELECTRICAL SAFETY

ON PAGE 40!

-41-

Electrical Panel Wiring

Master Power Switch

26 25 24 23 22 21 20

20-21 = 220V 20-22 = 230V 20-23 = 240V

20-24 = 380V 20-25 = 400V 20-26 = 600V

Transformer

JBK5-100VATH

30 31 E

12 13

2L2

2L1

1L1

3L2 5L3

13NO 21NC 31NC 43NO

KM1 Contactor

Siemens 3TB41 24V

14NO 22NC 32NC 44NO

2T1 4T2 6T3

3L3 3L1

ZL3

2L1

DZ451-63

QM1

D10

OFF

2L1

2L1 ZL3

ZL3

2L2

1L1

3L2 5L3

13NO 21NC 31NC 43NO

KM2 Contactor

Siemens 3TB41 24V

14NO 22NC 32NC 44NO

2T1 4T2 6T3

L3L2L1

ZL3

2L2

3L1

13NO 23NO 33N0 43NO

KA1 Contactor

Siemens 3TH80 24V

14NO 24N0 34N0 44NO

2L1

2L2

DZ451-63

QM2

OFF

3L1

3L3

ZL3

3L3

DZ451-63

QM3

OFF

13NO 23NO 33N0 43NO

KA0 Contactor

Siemens 3TH80 24V

14NO 24N0 34NO 44NO

6 2 8 4

LW26-20

531 7

CanSen

Power Connection

-42-

=For phase converter wild wire (if used)

Spindle Speed/

Direction Switch

Page 44

Page 47

READ ELECTRICAL SAFETY

ON PAGE 40!

L1 L2 L3

L1 L2 L3 U1 V1 W1 U2 V2 W2 0 1 2 3 A 4 5 6 7 9 10 11

Coolant Pump

Page 49

U1 V1

U1 V1 W1

Work Lamp

U2U2V2V2W2

U2 V2 W2L1 L2 L3

Page 44

To Chip Guard

Limit Switch

Page 47

5 643

54A32

Control Panel

Page 47

To Lower

Elevation Limit

Page 47

Model G0793 (Mfd. Since 02/15)

119

Switch

To Upper

Elevation Limit

Switch

Page 47

Electrical Panel Photo

Model G0793 (Mfd. Since 02/15)

Figure 47. Electrical panel wiring.

READ ELECTRICAL SAFETY

ON PAGE 40!

-43-

Control Panel Wiring

To Electrical

Panel

Page 42

Coolant Pump Switch

Emergency Stop

MCB-01

Drilling/Tapping

Switch

C2SS2-10B-10

To Main

Motor

Page 46

Left

View

Right

View

To Electrical

Panel

Page 42

Work Lamp Switch

C2SS2-10B-10

Spindle Speed/Direction Switch

8612

LW8PS-20

1 3 5 7 9 1113

10 14

192123

To Electrical

Panel

Page 42

Ground

LXW5-A11N

Upper Elevation

Limit Switch

Chip Guard

Limit

Switch

Juche

LXW/6-16

MCB-01 MCB-01

Lt/Bl

MCB-01 MCB-01

3 4

Spindle

Start Button

Control Panel

(Viewed from

Rear)

CP1-10Y-11

CP1-10R-01

Spindle Reverse

Stop Button

Button

Spindle

Lower Elevation

Limit Switch

LXW5-A11N

Ground

Headstock

(Viewed from

Front)

-44-

READ ELECTRICAL SAFETY

ON PAGE 40!

Model G0793 (Mfd. Since 02/15)

Control Panel Photo

Model G0793 (Mfd. Since 02/15)

Figure 48. Control panel wiring.

READ ELECTRICAL SAFETY

-45-

ON PAGE 40!

Ground

To Control

Ground

LAST DITCH OPTION

Panel

Page 44

Spindle Motor Wiring

Figure 49. Main motor wiring.

Coolant Pump Wiring

To Electrical Panel

Page 42

Figure 50. Coolant pump wiring.

-46-

READ ELECTRICAL SAFETY

ON PAGE 40!

Model G0793 (Mfd. Since 02/15)

SECTION 9: PARTS

Please Note: We do our best to stock replacement parts whenever possible, but we cannot guarantee that all parts shown here

are available for purchase. Call (800) 523 - 4777 or visit our online parts store at www.grizzly.com to check for availability.

Table Support & Coolant

23 22

REF PART # DESCRIPTION REF PART # DESCRIPTION

1 P0793001 BASE 23 P0793023 ELBOW 2 P0793002 COOLANT PUMP MOUNT 24 P0793024 REDUCING NIPPLE 1/2" X 3/8" NPT 3 P0793003 CAP SCREW M6-1 X 12 25 P0793025 FLEXIBLE TUBE 16 X 1.5 X 1300MM 4 P0793004 COOLANT PUMP 26 P0793026 COOLANT RETURN HOSE 6 P0793006 CRANK HANDLE M10-1.5 27 P0793027 COUPLING 7 P0793007 CRANK ARM 28 P0793028 TEE 8 P0793008 SET SCREW M10-1.5 X 10 DOG-PT 29 P0793029 SET SCREW M8-1.25 X 10 9 P0793009 CLAMP COLLAR 30 P0793030 BALL OILER 8MM PRESS-IN 10 P0793010 WORM GEAR M16-2 31 P0793031 GEAR SHAFT 11 P0793011 ADJUSTABLE HANDLE M16-2, 114L 32 P0793032 TABLE SUPPORT 12 P0793012 ADJUSTABLE HANDLE SHAFT M16-2 X 90 33 P0793033 L-TABLE 13 P0793013 CAP SCREW M6-1 X 60 34 P0793034 CAP SCREW M16-2 X 50 14 P0793014 HEADSTOCK MOUNT 35 P0793035 FLAT WASHER 16MM 15 P0793015 GEAR 15T 36 P0793036 TOOLBOX 16 P0793016 CAP SCREW M8-1.25 X 30 37 P0793037 DRILL CHUCK ARBOR MT4-B16 17 P0793017 RACK 38 P0793038 SPINDLE SLEEVE MT4-MT2 18 P0793018 COLUMN 39 P0793039 SPINDLE SLEEVE MT4-MT3 19 P0793019 DRAIN PLUG 3/8" NPT SOCKET HEAD 40 P0793040 DRILL CHUCK 3-16MM B16 20 P0793020 CAP SCREW M14-2 X 60 41 P0793041 DRILL CHUCK KEY 5/16" STD 11T SD-5/8" 21 P0793021 COOLANT RESERVOIR COVER PLATE 42 P0793042 BOTTLE FOR OIL 22 P0793022 CAP SCREW M8-1.25 X 25 43 P0793043 DRIFT KEY

Model G0793 (Mfd. Since 02/15)

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-47-

134 133

101

Gearbox

103

104

102-1

102-2

102-4

102-3

102-5

111

132

131

130 129

128 127

126

125

124

123

122

121

120

152

119

137

138

153

139

151

140

135

155

141

165

136

156

166

142

167

157

153

169

158

170

143

159

155

105

106

107

108

109

110

145

171

144

102

118

145

161

172

146

162

173

147

163

174

175

143

156

149

177

181

155

178

150

182

164

179

117

151

183

180

156

184

107

113

114

115

114

116

185

155

186

164

-48-

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176

Model G0793 (Mfd. Since 02/15)

Gearbox Parts List

REF PART # DESCRIPTION REF PART # DESCRIPTION

101 P0793101 GEARBOX CASTING 140 P0793140 INT RETAINING RING 68MM 102 P0793102 MOTOR 2HP 220V 3-PH 141 P0793141 BALL BEARING 6008-2RS 102-1 P0793102-1 MOTOR FAN COVER 142 P0793142 SPLINED SHAFT 102-2 P0793102-2 MOTOR FAN 143 P0793143 EXT RETAINING RING 48MM 102-3 P0793102-3 JUNCTION BOX 144 P0793144 GEAR 34T 102-4 P0793102-4 BALL BEARING 6206-2RS (FRONT) 145 P0793145 KEY 8 X 5 X 32 102-5 P0793102-5 BALL BEARING 6206-2RS (REAR) 146 P0793146 GEAR 46T 103 P0793103 FLAT WASHER 10MM 147 P0793147 GEAR 40T 104 P0793104 CAP SCREW M10-1.5 X 35 C12.9 149 P0793149 BALL BEARING 6008-OPEN 105 P0793105 MOTOR GASKET 150 P0793150 SPACER 106 P0793106 DRAIN PLUG 3/8" NPT SOCKET HEAD 151 P0793151 INT RETAINING RING 62MM 107 P0793107 CAP SCREW M8-1.25 X 25 152 P0793152 COVER 108 P0793108 SIGHT GLASS M27-1.5 153 P0793153 O-RING 58 X 2.65 109 P0793109 SIGHT GLASS B20 x M27-1.5 155 P0793155 BALL BEARING 6206-OPEN 110 P0793110 DRAIN PLUG M27-2 HEX HEAD 156 P0793156 FLANGED BUSHING 111 P0793111 SHIFT LEVER PLUG 157 P0793157 GEAR 48T 113 P0793113 SHIFT LEVER 158 P0793158 GEAR 48T 114 P0793114 SHIFT FORK 159 P0793159 GEAR SHAFT 115 P0793115 SHAFT 161 P0793161 KEY 8 X 5 X 40 116 P0793116 SHIFT LEVER 162 P0793162 GEAR 22T 117 P0793117 SHAFT 163 P0793163 GEAR 28T 118 P0793118 CAP SCREW M8-1.25 X 20 164 P0793164 COVER 119 P0793119 POINTER PIN 165 P0793165 CAP SCREW M6-1 X 16 120 P0793120 SPEED CONTROL HANDLE M10-1.5 166 P0793166 DOWEL PIN 10 X 40 121 P0793121 SPEED CONTROL LEVER M10-1.5 X 50 167 P0793167 FLANGE 122 P0793122 SHIFT HUB (RIGHT) 169 P0793169 SET SCREW M3-.5 X 4 CONE-PT 123 P0793123 SHIFT HUB (LEFT) 170 P0793170 GEAR 12T 124 P0793124 COMPRESSION SPRING 1 X 9 X 18-2 171 P0793171 FLANGED BUSHING 125 P0793125 STEEL BALL 10MM 172 P0793172 SPLINED SHAFT 126 P0793126 O-RING 17 X 1.8 173 P0793173 GEAR 20T 127 P0793127 EXT RETAINING RING 20MM 174 P0793174 KEY 6 X 4 X 36 128 P0793128 PHLP HD SCR M5-.8 X 12 175 P0793175 GEAR 34T 129 P0793129 GEAR CHANGE PLATE 176 P0793176 GEAR 12T 130 P0793130 ROLL PIN 5 X 12 177 P0793177 GEAR 50T 131 P0793131 DRAIN PLUG 3/8" NPT SOCKET HEAD 178 P0793178 EXT RETAINING RING 35MM 132 P0793132 LUBRICATION TUBE 179 P0793179 EXT RETAINING RING 25MM 133 P0793133 CAP SCREW M5-.8 X 8 180 P0793180 GEAR 50T 134 P0793134 TUBE CLIP 181 P0793181 CAP SCREW M8-1.25 X 20 135 P0793135 GEARBOX COVER GASKET 182 P0793182 LOCK WASHER 8MM 136 P0793136 GEARBOX COVER 183 P0793183 FENDER WASHER 8MM 137 P0793137 SPLINED FLANGE SLEEVE 184 P0793184 GEAR SHAFT 138 P0793138 O-RING 61.5 X 3.55 185 P0793185 KEY 6 X 4 X 28 139 P0793139 OIL SEAL 40 X 55 X 08MM 186 P0793186 SHAFT

Model G0793 (Mfd. Since 02/15)

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-49-

234

233

208

229

209

230

210

211

212

Downfeed Gearbox

201

213

202

214

203

215

204

212

205

215

206

218

206

207

219

231

232

224

226

225

221

REF PART # DESCRIPTION REF PART # DESCRIPTION

201 P0793201 ROLL PIN 6 X 45 215 P0793215 INT RETAINING RING 62MM 202 P0793202 FLAT COIL SPRING 218 P0793218 FEED HANDLE HUB 203 P0793203 WORM GEAR 219 P0793219 END CAP 204 P0793204 BALL OILER 8MM PRESS-IN 221 P0793221 MANUAL DOWNFEED HANDLE M12-1.75 X 10 205 P0793205 GEAR SHAFT 224 P0793224 SPINDLE FEED COVER 206 P0793206 KEY 8 X 8 X 25 225 P0793225 ROLL PIN 8 X 45 207 P0793207 SPINDLE FEED COVER GASKET 226 P0793226 SIGHT GLASS M27-1.5 208 P0793208 EXT RETAINING RING 24MM 229 P0793229 DOWNFEED HANDLE M10-1.5 X 10 209 P0793209 SPRING PLATE 230 P0793230 CLUTCH PLATE 210 P0793210 COMPRESSION SPRING 1 X 7 X 32 231 P0793231 OIL FILL PLUG 3/8" NPT HEX HEAD 211 P0793211 CLUTCH 232 P0793232 CAP SCREW M8-1.25 X 40 212 P0793212 BALL BEARING 6007-OPEN 233 P0793233 SHAFT COVER 213 P0793213 PLUG 234 P0793234 PHLP HD SCR M6-1 X 12 214 P0793214 STEEL BALL 8MM

-50-

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Model G0793 (Mfd. Since 02/15)

Headstock

314

315

313

316

308

317

312

310

331

309

318

322

308

319

323

320

307

321

306

305

324 325

304

326

303

327

301

302

328

329

345

343

346

347

348

349

322

350

332

354

344

351

333

335

336

337

352

353

355

334

356

357

379

381

380

359

358

368

360

369

340

339

338

360

370

359

369

341

363

342

364

372

357

366

365

376

375

374

373

377

Model G0793 (Mfd. Since 02/15)

378

BUY PARTS ONLINE AT GRIZZLY.CO M!

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-51-

Headstock Parts List

REF PART # DESCRIPTION REF PART # DESCRIPTION

301 P0793301 HEADSTOCK CASTING 341 P0793341 TORQUE LIMITER COVER PLATE 302 P0793302 AUTO DOWNFEED SHIFTING FORK 342 P0793342 PHLP HD SCR M6-1 X 12 303 P0793303 DOWEL PIN 10 X 20 343 P0793343 SPINDLE 304 P0793304 AUTO DOWNFEED SHIFTING SHAFT 344 P0793344 QUILL 305 P0793305 AUTO DOWNFEED INDICATOR HUB 345 P0793345 EXT RETAINING RING 75MM 306 P0793306 SET SCREW M8-1.25 X 25 DOG-PT 346 P0793346 O-RING 85 X 5.7 307 P0793307 AUTOMATIC DOWNFEED DIAL 347 P0793347 THRUST WASHER 308 P0793308 STEEL BALL 6MM 348 P0793348 THRUST BEARING 51108 309 P0793309 COMPRESSION SPRING 0.8 X 5 X 16 349 P0793349 NEEDLE ROLLER BEARING RUA49/32 310 P0793310 SET SCREW M8-1.25 X 16 350 P0793350 SPRING HOUSING 312 P0793312 COMPRESSION SPRING 0.8 X 7 X 12 351 P0793351 BALL BEARING 6006-2RS 313 P0793313 AUTOMATIC DRIFT SHAFT 352 P0793352 CLAMP NUT 314 P0793314 SET SCREW M8-1.25 X 28 DOG-PT 353 P0793353 CAP SCREW M4-.7 X 14 315 P0793315 HEX NUT M8-1.25 THIN 354 P0793354 DOWEL PIN 12 X 50 316 P0793316 PHLP HD SCR M6-1 X 12 355 P0793355 COMPRESSION SPRING 317 P0793317 COILED SPRING COVER PLATE 356 P0793356 GEAR 32/20T 318 P0793318 CAP SCREW M6-1 X 20 357 P0793357 EXT RETAINING RING 25MM 319 P0793319 CURVED PLATE 358 P0793358 BEARING FLAT WASHER 320 P0793320 STEEL FLUTED RIVET 2 X 4MM 359 P0793359 BALL BEARING 6205-2RS 321 P0793321 INDEX RING 360 P0793360 INT RETAINING RING 52MM 322 P0793322 PHLP HD SCR M6-1 X 12 363 P0793363 WOODRUFF KEY 6 X 18 323 P0793323 PLATE 364 P0793364 SHAFT 324 P0793324 CAP SCREW M5-.8 X 30 365 P0793365 WOODRUFF KEY 6 X 12 325 P0793325 FIREWALL PLATE 366 P0793366 GEAR 22T 326 P0793326 SLIDE PLATE 368 P0793368 EXT RETAINING RING 35MM 327 P0793327 DEPTH STOP PIN 369 P0793369 INT RETAINING RING 32MM 328 P0793328 DEPTH STOP BRACKET 370 P0793370 BALL BEARING 6002-2RS 329 P0793329 DRAIN PLUG 3/8" NPT HEX HEAD 372 P0793372 WORM 331 P0793331 CHIP GUARD ASSEMBLY 373 P0793373 NEEDLE ROLLER BEARING MF-2516 332 P0793332 CONTROL PANEL COVER PLATE 374 P0793374 KEYED SPACER 333 P0793333 STAR KNOB 5-PT M10-1.5 X 40 375 P0793375 GEAR 48/60T 334 P0793334 CAP SCREW M5-.8 X 8 376 P0793376 KEYED SPACER 335 P0793335 SET SCREW M6-1 X 16 CONE-PT 377 P0793377 DOWEL PIN 6 X 8 336 P0793336 FLANGED COLLAR 378 P0793378 DISC SPRING 45 X 24 X 1.75 337 P0793337 CAP SCREW M8-1.25 X 40 379 P0793379 CLAMP NUT 338 P0793338 ROLL PIN 3 X 25 380 P0793380 PLUNGER 339 P0793339 QUILL COLLAR 381 P0793381 SET SCREW M8-1.25 X 8 340 P0793340 QUILL COLLAR SHAFT

-52-

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Model G0793 (Mfd. Since 02/15)

Electrical

419-1

401

26 25 24 23 22 21 20

20-21 = 220V 20-22 = 230V

Transformer

20-23 = 240V 20-24 = 380V 20-25 = 400V 20-26 = 600V

JBK5-100VATH

30 31 E

405

1L1

3L2

13NO 21NC 31NC 43NO

KM1 Contactor

Siemens 3TB41 24V

14NO 22NC 32NC 44NO

2T1 4T2 6T3

407

5L3

402

D10

OFF

405

1L1

5L3

3L2

13NO 21NC 31NC 43NO

KM2 Contactor

Siemens 3TB41 24V

14NO 22NC 32NC 44NO

2T1 4T2 6T3

DZ451-63

QM1

406

13NO 23NO 33N0 43NO

KA1 Contactor

Siemens 3TH80 24V

14NO 24N0 34N0 44NO

403

DZ451-63

QM2

OFF

404

DZ451-63

QM3

OFF

408

L1 L2 L3 U1 V1 W1 U2 V2 W2 0 1 2 3 A 4 5 6 7 9 10 11

406

13NO 23NO 33N0 43NO

KA0 Contactor

Siemens 3TH80 24V

14NO 24N0 34NO 44NO

409

531 7

CanSen

417

MCB-01

MCB-01 MCB-01

C2SS2-10B-10

MCB-01 MCB-01

3 4

410

C2SS2-10B-10

410

418

411

414

LXW5-A11N

1 3 5 7 9 1113

192123

412

CP1-10Y-11

415

418

LXW5-A11N

413

416

CP1-10R-01

Work Lamp

419

REF PART # DESCRIPTION REF PART # DESCRIPTION

401 P0793401 TRANSFORMER JBK5-100VATH 411 P0793411 E-STOP BUTTON 22MM ABB MCB-01 402 P0793402 CIRCUIT BREAKER HUILONG DZ451-63 D10 3P 412 P0793412 DRILLING/TAPPING SWITCH ABB MCB-01 403 P0793403 CIRCUIT BREAKER HUILONG DZ451-63 D1 2P 413 P0793413 START BUTTON ABB MCB-10 404 P0793404 CIRCUIT BREAKER HUILONG DZ451-63 C6 1P 414 P0793414 ROTARY SWITCH E&E LW8PS-20/6H7557 12P 405 P0793405 CONTACTOR SIEMENS 3TB41 24V 415 P0793415 SPINDLE REVERSE BUTTON ABB CP1-10Y-11 406 P0793406 CONTACTOR SIEMENS 3TH80 24V 416 P0793416 STOP BUTTON ABB CP1-10R-01 407 P0793407 GROUNDING BLOCK 6P 417 P0793417 LIMIT SWITCH JUCHE LXW16-16/1C2 408 P0793408 TERMINAL BAR 21P 418 P0793418 LIMIT SWITCH LXW5-A11N 409 P0793409 ROTARY SWITCH CANSEN LW26GS-20 4P 419 P0793419 HALOGEN WORK LAMP 24V 25W 410 P0793410 SELECTOR SWITCH ABB C2SS2-10B-01 419-1 P0793419-1 HALOGEN BULB 50W 24V BI-PIN

Model G0793 (Mfd. Since 02/15)

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-53-

grizzly.com

chemical-resistant material

G0793

FOR GRIZZLY MACHINES ONLY! DO NOT REPRODUCE OR CHANGE THIS ARTWORK

WITHOUT WRITTEN APPROVAL!

Grizzly will not accept labels changed without approval.

artwork changes are required, contact us immediately at manuals@grizzly.com.

367 x 53.5mm

• 1:1 Sizing (Labels are actual size)

• Labels must be made of chemical-resistant material

105.5 x 166mm

17 x 19mm

54 x 54mm

S/N

Manufactured for Grizzly in China

15. Prevent unauthorized use by children or untrained users;

restrict access or disable machine when unattended.

CHECK OIL

LEVELS BEFORE USING!

17 x 19mm

54 x 54mm

DANGER

PANTONE 485 C or RAL 3001

PANTONE 151 C or RAL 2005

WARNING

CAUTION

PANTONE 109 C

GRIZZLY LOGO RED

PANTONE 711C or RAL 3020

COLOR CODES

NOTICE

PANTONE 3005 C or RAL 5005

WARNING!

BIOLOGICAL AND POISON HAZARD!

Use personal protection when handling coolant. Immediately clean up spills.

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.

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.

WARNING!

Always wear ANSI-approved safety glasses and face shield when using this machine.

EYE/FACE INJURY

HAZARD!

INJURY/SHOCK

HAZARD! Disconnect power before adjustments, maintenance, or service.

63 x 38mm

64.5 x 148mm

(12/05/14)

• 1:1 Sizing (Labels are actual size)

• Labels must be made of chemical-resistant material

105.5 x 166mm

(12/05/14)

• 1:1 Sizing (Labels are actual size)

• Labels must be made of chemical-resistant material

105.5 x 166mm

(12/05/14)

• 1:1 Sizing (Labels are actual size)

• Labels must be made of chemical-resistant material

Fluid Capacities

Gearhead

4-3/4 qt. 9-1/2 qt.Coolant

Grizzly T23963 or ISO 32 Equivalent Varies per Operation/Material

Component TypeCapacity

Main Motor: 1-1/8 HP/2 HP, 220V, 3-Ph, 60 Hz Full-Load Current Rating: 6.6A Motor Speeds: 875 & 1725 RPM Swing: 27.5" Max. Distance Spindle to Column: 13-3/4" Max. Distance Spindle to Table: 30-3/4" Spindle Taper: MT#4 Spindle Travel: 7" Number of Spindle Speeds: 18 Spindle Speed Range: 60 – 1740 RPM Vertical Table Travel: 20" Table Swivel Around Column: 360˚ Drilling Capacity Cast Iron: 1-1/2" Dia. Drilling Capacity Steel: 1-3/16" Dia. Weight: 1026 lbs.

Specifications

MODEL G0793

HEAVY-DUTY DRILL PRESS

w/AUTO DOWNFEED & TAPPING

Date

S/N

Manufactured for Grizzly in China

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. Avoid entanglement with spindle—tie back long hair, roll up long sleeves, and DO NOT wear loose clothing, gloves, or jewelry.

6. Properly set up machine before starting.

7. Keep all guards and covers in place during operation.

8. Clamp workpiece to table to prevent rotation.

9. Avoid positioning hands where they could slip into rotating bits.

10. Always remove chuck keys and other tools before starting.

11. Never attempt to slow or stop spindle with hands or tools.

12. Use correct speeds for drilling accessories and workpiece.

13. Do not operate when tired or under influence of drugs or alcohol.

14. Do not expose to rain or use in wet locations.

15. Prevent unauthorized use by children or untrained users;

restrict access or disable machine when unattended.

REFER TO OWNER’S MANUAL FOR OIL TYPE AND

AMOUNT.

CHECK OIL

LEVELS BEFORE USING!

DANGER

PANTONE 485 C or RAL 3001

PANTONE 151 C or RAL 2005

WARNING

CAUTION

PANTONE 109 C

COLOR CODES

PANTONE 3005 C or RAL 5005

WARNING!

BIOLOGICAL AND POISON HAZARD!

Use personal protection when handling coolant. Immediately clean up spills.

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.

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.

WARNING!

Always wear ANSI-approved safety glasses and face shield when using this machine.

EYE/FACE INJURY

HAZARD!

INJURY/SHOCK

HAZARD! Disconnect power before adjustments, maintenance, or service.

105.5 x 166mm

23.5 x 97mm

17 x 19mm

32 x 35.5mm

54 x 54mm

63 x 38mm

64.5 x 148mm

• 1:1 Sizing (Labels are actual size)

• Labels must be made of chemical-resistant material

Grizzly T23963 or ISO 32 Equivalent Varies per Operation/Material

MODEL G0793

HEAVY-DUTY DRILL PRESS

w/AUTO DOWNFEED & TAPPING

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. Avoid entanglement with spindle—tie back long hair, roll up long sleeves, and DO NOT wear loose clothing, gloves, or jewelry.

6. Properly set up machine before starting.

7. Keep all guards and covers in place during operation.

8. Clamp workpiece to table to prevent rotation.

9. Avoid positioning hands where they could slip into rotating bits.

10. Always remove chuck keys and other tools before starting.

11. Never attempt to slow or stop spindle with hands or tools.

12. Use correct speeds for drilling accessories and workpiece.

13. Do not operate when tired or under influence of drugs or alcohol.

14. Do not expose to rain or use in wet locations.

15. Prevent unauthorized use by children or untrained users;

restrict access or disable machine when unattended.

REFER TO

OWNER’S MANUAL

FOR OIL TYPE AND

AMOUNT.

CHECK OIL

LEVELS BEFORE USING!

105.5 x 166mm

17 x 19mm

32 x 35.5mm

54 x 54mm

G0793 Machine Labels A

(12/05/14)

• 1:1 Sizing (Labels are actual size)

• Labels must be made of chemical-resistant material

Fluid Capacities

Gearhead

4-3/4 qt. 9-1/2 qt.Coolant

Grizzly T23963 or ISO 32 Equivalent Varies per Operation/Material

Component TypeCapacity

Specifications

MODEL G0793

HEAVY-DUTY DRILL PRESS

w/AUTO DOWNFEED & TAPPING

Date

S/N

Manufactured for Grizzly in China

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. Avoid entanglement with spindle—tie back long hair, roll up long sleeves, and DO NOT wear loose clothing, gloves, or jewelry.

6. Properly set up machine before starting.

7. Keep all guards and covers in place during operation.

8. Clamp workpiece to table to prevent rotation.

9. Avoid positioning hands where they could slip into rotating bits.

10. Always remove chuck keys and other tools before starting.

11. Never attempt to slow or stop spindle with hands or tools.

12. Use correct speeds for drilling accessories and workpiece.

13. Do not operate when tired or under influence of drugs or alcohol.

14. Do not expose to rain or use in wet locations.

15. Prevent unauthorized use by children or untrained users;

restrict access or disable machine when unattended.

Do not exceed gearbox oil level above red dot in center of oil site glass below.

REFER TO OWNER’S MANUAL FOR OIL TYPE AND

AMOUNT.

CHECK OIL

LEVELS BEFORE USING!

DANGER

PANTONE 485 C or RAL 3001

PANTONE 151 C or RAL 2005

WARNING

CAUTION

PANTONE 109 C

GRIZZLY LOGO RED

PANTONE 711C or RAL 3020

COLOR CODES

NOTICE

PANTONE 3005 C or RAL 5005

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.

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.

WARNING!

Always wear

ANSI-approved safety glasses and face shield when using this machine.

EYE/FACE INJURY

HAZARD!

INJURY/SHOCK

HAZARD! Disconnect power before adjustments, maintenance, or service.

105.5 x 166mm

23.5 x 97mm

17 x 19mm

32 x 35.5mm

54 x 54mm

64.5 x 148mm

CHECK OIL

LEVELS BEFORE USING!

503

CHECK OIL

LEVELS BEFORE USING!

CHECK OIL

LEVELS BEFORE USING!

Spindle

Stop

Do not change spindle speed or direction when spindle is in motion.

504

NOTICE

Labels & Cosmetics

505

Fluid Capacities

Component TypeCapacity

Gearhead

4-3/4 qt.

Grizzly T23963 or ISO 32 Equivalent Varies per Operation/Material

9-1/2 qt.Coolant

Spindle

Start

502

CHECK OIL

LEVELS BEFORE USING!

REFER TO OWNER’S MANUAL FOR OIL TYPE AND

AMOUNT.

NOTICE

Do not exceed gearbox oil level above red dot in center of oil site glass below.

506

NOTICE

Do not exceed gearbox oil level above red dot in center of oil site glass below.

507

Specifications

Date

S/N

Manufactured for Grizzly in China

508

506

509

EYE/FACE INJURY

Always wear ANSI-approved safety glasses and face shield when using this machine.

MODEL G0793

HEAVY-DUTY DRILL PRESS

w/AUTO DOWNFEED & TAPPING

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. Avoid entanglement with spindle—tie back long hair, roll up long sleeves, and DO NOT wear loose clothing, gloves, or jewelry.

6. Properly set up machine before starting.

7. Keep all guards and covers in place during operation.

8. Clamp workpiece to table to prevent rotation.

9. Avoid positioning hands where they could slip into rotating bits.

10. Always remove chuck keys and other tools before starting.

11. Never attempt to slow or stop spindle with hands or tools.

12. Use correct speeds for drilling accessories and workpiece.

13. Do not operate when tired or under influence of drugs or alcohol.

14. Do not expose to rain or use in wet locations.

15. Prevent unauthorized use by children or untrained users;

restrict access or disable machine when unattended.

WARNING!

To reduce risk of death

ENTANGLEMENT

or serious injury, read

HAZARD!

Tie back long hair, roll up long sleeves, and remove loose clothing, jewelry, or gloves to prevent getting caught in moving parts.

manual BEFORE using machine. To get a new manual, call (800) 523-4777 or go to www.grizzly.com.

INJURY/SHOCK

HAZARD! Disconnect power before adjustments, maintenance, or service.

REF PART # DESCRIPTION REF PART # DESCRIPTION

501 P0793501 GRIZZLY.COM LABEL 507 P0793507 MACHINE ID LABEL 502 P0793502 STOP OIL FILL TAG 508 P0793508 ELECTRICITY LABEL 503 P0793503 CONTROL PANEL FACEPLATE 509 P0793509 HAZARD WARNING LABEL 504 P0793504 MODEL NUMBER LABEL 510 P0793510 BIOLOGICAL/POISON HAZARD LABEL 505 P0793505 FLUID CAPACITIES LABEL 511 P0793511 ELECTRICITY LABEL 506 P0793506 OIL LEVEL NOTICE 512 P0793512 GRIZZLY GREEN TOUCH-UP PAINT

-54-

BUY PARTS ONLINE AT GRIZZLY.CO M!

Scan QR code to visit our Par ts Store.

501

510

WARNING!

BIOLOGICAL AND POISON HAZARD!

Use personal protection when handling coolant. Immediately clean up spills.

511

512

508

Model G0793 (Mfd. Since 02/15)

WARRANTY CARD

Name _____________________________________________________________________________

Street _____________________________________________________________________________

City _______________________ State _________________________ Zip _____________________

Phone # ____________________ Email _________________________________________________

Model # ____________________ Order # _______________________ Serial # __________________

The following information is given on a voluntary basis. It will be used for marketing purposes to help us develop better products and services. Of course, all information is strictly confidential.

1. How did you learn about us? ____ Advertisement ____ Friend ____ Catalog ____ Card Deck ____ Website ____ Other:

2. Which of the following magazines do you subscribe to?

____ Cabinetmaker & FDM ____ Family Handyman ____ Hand Loader ____ Handy ____ Home Shop Machinist ____ Journal of Light Cont. ____ Live Steam ____ Model Airplane News ____ Old House Journal ____ Popular Mechanics

3. What is your annual household income? ____ $20,000-$29,000 ____ $30,000-$39,000 ____ $40,000-$49,000 ____ $50,000-$59,000 ____ $60,000-$69,000 ____ $70,000+

CUT ALONG DOTTED LINE

4. What is your age group? ____ 20-29 ____ 30-39 ____ 40-49 ____ 50-59 ____ 60-69 ____ 70+

5. How long have you been a woodworker/metalworker? ____ 0-2 Years ____ 2-8 Years ____ 8-20 Years ____20+ Years

6. How many of your machines or tools are Grizzly? ____ 0-2 ____ 3-5 ____ 6-9 ____10+

____ Popular Science ____ Popular Woodworking ____ Precision Shooter ____ Projects in Metal ____ RC Modeler ____ Rie ____ Shop Notes ____ Shotgun News ____ Today’s Homeowner ____ Wood

____ Wooden Boat ____ Woodshop News ____ Woodsmith ____ Woodwork ____ Woodworker West ____ Woodworker’s Journal ____ Other:

7. Do you think your machine represents a good value? _____ Yes _____No

8. Would you recommend Grizzly Industrial to a friend? _____Yes _____No

9. Would you allow us to use your name as a reference for Grizzly customers in your area? Note: We never use names more than 3 times. _____Yes _____No

10. Comments: _____________________________________________________________________

_________________________________________________________________________________

FOLD ALONG DOTTED LINE

Place

Stamp

Here

GRIZZLY INDUSTRIAL, INC. P.O. BOX 2069 BELLINGHAM, WA 98227-2069

Send a Grizzly Catalog to a friend:

Name_______________________________

Street_______________________________

City______________State______Zip______

TAPE ALONG EDGES--PLEASE DO NOT STAPLE

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.

To take advantage of 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.

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.

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.

Grizzly G0793 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

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

Unpacking

Inventory

Needed for Setup

Site Considerations

Lifting & Placing

Anchoring to Floor

Initial Lubrication

Power Connection

Test Run

Spindle Break-In

SECTION 4: OPERATIONS

Operation Overview

Depth Stop

Positioning Table

Spindle Speed

Calculating Spindle Speed for Drilling

Drilling Mode

Auto-Feed

Tapping Mode

Coolant System

SECTION 5: ACCESSORIES

SECTION 6: MAINTENANCE

Schedule

Lubrication

SECTION 7: SERVICE

Troubleshooting

SECTION 8: WIRING

Wiring Safety Instructions

Wiring Overview

Component Location

Electrical Panel Wiring

Electrical Panel Photo

Control Panel Wiring

Control Panel Photo

Spindle Motor Wiring

Coolant Pump Wiring

SECTION 9: PARTS

Table Support & Coolant

Gearbox

Downfeed Gearbox

Headstock

Electrical

Labels & Cosmetics

WARRANTY & RETURNS