Grizzly G0920 User guide

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MODEL G0920

22" SINGLE DRUM SANDER

OWNER'S MANUAL

(For models manufactured since 9/23)

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

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

#CS21435 PRINTED IN TAIWA N

V1.0 8.23

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

Machine Data Sheet ...................................... 4

SECTION 1: SAFETY ....................................... 6

Safety Instructions for Machinery .................. 6

Additional Safety for Drum Sanders .............. 8

SECTION 2: POWER SUPPLY ........................ 9

SECTION 3: SETUP ....................................... 11

Needed for Setup ......................................... 11

Unpacking .................................................... 11

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

Hardware Recognition Chart ....................... 14

Site Considerations ...................................... 15

Assembly ..................................................... 16

Anchoring to Floor ....................................... 22

Dust Collection ............................................. 22

Test Run ...................................................... 23

Recommended Adjustments ........................ 23

SECTION 4: OPERATIONS ........................... 24

Inspecting Stock........................................... 25

Setting Depth of Cut .................................... 25

Using Digital Depth Gauge .......................... 26

Adjusting Conveyor Feed Rate .................... 27

Sanding Tips ................................................ 28

Choosing Sandpaper ................................... 29

Replacing Sandpaper .................................. 29

Folding Extension Tables ............................ 31

SECTION 5: ACCESSORIES ......................... 32

SECTION 6: MAINTENANCE ......................... 33

Schedule ...................................................... 33

Cleaning Machine ........................................ 33

Cleaning Sanding Belts ............................... 33

Lubrication ................................................... 34

SECTION 7: SERVICE ................................... 35

Troubleshooting ........................................... 35

Tracking & Tensioning Conveyor Belt ......... 38

Replacing Conveyor Belt ............................. 39

Making Blocks .............................................. 40

Adjusting Gibs .............................................. 41

Aligning Drum .............................................. 41

Adjusting Pressure Rollers .......................... 44

Replacing Brushes ....................................... 45

SECTION 8: WIRING ...................................... 46

Wiring Safety Instructions ............................ 46

Wiring Diagram ............................................ 47

Electrical Component Photos ...................... 48

SECTION 9: PARTS ....................................... 49

Main ............................................................. 49

Drum ............................................................ 51

Cabinet ......................................................... 53

Extension Tables ......................................... 54

Control Panel ............................................... 55

Labels & Cosmetics ..................................... 56

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

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

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

serial number from the machine ID label (see below). This information is required for us to provide proper tech support, and it helps us determine if updated documentation is available for your machine.

Contact Info Manual Accuracy

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

made every effort to be exact with the

sometimes the machine

e post

manual updates for free

www.grizzly.com.

manufacture date and

Manufacture Date

Serial Number

-2-

Model G0920 (Mfd. Since 09/23)

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. Conveyor Table w/Belt: Feeds workpiece

across conveyor table during sanding operations.

B. Drum Height Lock Knob: Secures drum

height setting.

C. Digital Depth Gauge: Displays approximate

distance between sanding drum and conveyor belt or distance between two depths.

G. Extension Tables: Support large workpieces

as they pass under sanding drum.

H. Drum Motor: Powers sanding drum.

I. Drum Height Handwheel: Raises and low-

ers drum. One full rotation moves drum approximately 0.06" (1⁄16").

J. Drum Door: Provides access for servicing.

D. ON/OFF Buttons: Turn motor ON and OFF.

E. Conveyor Feed Rate Dial: Rotate dial clock-

wise to increase conveyor belt feed rate or counterclockwise to decrease feed rate. Conveyor feed rate ranges from 0–10 FPM.

F. Circuit Breaker Reset Button: Trips during

excessive sanding operation when workload overloads circuit. Press button to reset breaker.

Model G0920 (Mfd. Since 09/23)

K. Feed Motor: Powers conveyor belt.

using machine.

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Bearings........................................................................................................ Sealed & Permanently Lubricated

Machine Data Sheet

MACHINE DATA

SHEET

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

MODEL G0920 22"/44" OPEN‐ENDED DRUM SANDER

Product Dimensions:

Shipping Dimensions:

Electrical:

MODEL G0920 22" SINGLE DRUM SANDER

Weight.............................................................................................................................................................. 307 lbs.

Width (side-to-side) x Depth (front-to-back) x Height............................................................... 42-1/2 x 43-1/2 x 61 in.

Footprint (Length x Width)............................................................................................................... 23-1/2 x 32-1/2 in.

Carton #1

Type........................................................................................................................................... Cardboard Box

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

Weight.................................................................................................................................................... 236 lbs.

Length x Width x Height............................................................................................................. 45 x 26 x 26 in.

Must Ship Upright......................................................................................................................................... Yes

Carton #2

Type........................................................................................................................................... Cardboard Box

Content...................................................................................................................................................... Stand

Weight.................................................................................................................................................... 105 lbs.

Length x Width x Height............................................................................................................. 34 x 27 x 14 in.

Must Ship Upright......................................................................................................................................... Yes

Power Requirement........................................................................................................... 230V, Single-Phase, 60 Hz

Full-Load Current Rating....................................................................................................................................... 8.5A

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

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

Power Cord Included.............................................................................................................................................. Yes

Power Cord Length.............................................................................................................................................. 60 in.

Power Cord Gauge......................................................................................................................................... 14 AWG

Plug Included.......................................................................................................................................................... Yes

Included Plug Type................................................................................................................................................ 6-15

Switch Type............................................................................................ Control Panel w/Magnetic Switch Protection

Motors:

Main

Horsepower................................................................................................................................................ 2 HP

Phase............................................................................................................................................ Single-Phase

Amps........................................................................................................................................................... 7.5A

Speed................................................................................................................................................ 1720 RPM

Type................................................................................................................. TEFC Capacitor-Start Induction

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

Bearings........................................................................................................ Sealed & Permanently Lubricated

Centrifugal Switch/Contacts Type......................................................................................................... External

Feed

Horsepower................................................................................................................................................. 50W

Phase............................................................................................................................................ Single-Phase

Amps.............................................................................................................................................................. 1A

Speed................................................................................................................................................ 2200 RPM

Type..................................................................................................................................................... Universal

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

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Model G0920 (Mfd. Since 09/23)

Main Specifications:

Operation Information

Number of Sanding Heads............................................................................................................................... 1

Maximum Board Width........................................................................................................................ 21-1/4 in.

Minimum Board Width................................................................................................................................. 2 in.

Maximum Board Thickness......................................................................................................................... 5 in.

Minimum Board Thickness....................................................................................................................... 1/4 in.

Minimum Board Length................................................................................................................................ 9 in.

Sandpaper Speed.............................................................................................................................. 2300 FPM

Conveyor Feed Rate......................................................................................................................... 0 - 10 FPM

Sandpaper Length................................................................................................................................... 127 in.

Sandpaper Width......................................................................................................................................... 3 in.

Drum Information

Infeed Sanding Drum Type................................................................................................................. Aluminum

Infeed Sanding Drum Size........................................................................................................................... 5 in.

Construction

Conveyor Belt......................................................................................................................................... Rubber

Body........................................................................................................................................................... Steel

Paint Type/Finish....................................................................................................................... Powder Coated

Other Related Information

Floor To Table Height.......................................................................................................................... 36-1/4 in.

Sanding Belt Tension.................................................................................................................. Spring Loaded

Number of Pressure Rollers............................................................................................................................. 2

Pressure Roller Type.................................................................................................................................. Steel

Pressure Roller Size................................................................................................................................. 3/4 in.

Conveyor Belt Length................................................................................................................................ 46 in.

Conveyor Belt Width.................................................................................................................................. 22 in.

Belt Roller Size...................................................................................................................................... 1-3/4 in.

Number of Dust Ports....................................................................................................................................... 1

Dust Port Size.............................................................................................................................................. 4 in.

Other Specifications:

Country of Origin .............................................................................................................................................. Taiwan

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

Approximate Assembly & Setup Time ........................................................................................................ 30 Minutes

Serial Number Location .................................................................................................................................. ID Label

Features:

Spring-Loaded Sanding Belt Tension/Sandpaper Industrial-Duty Rubber Conveyor Belt 4" Dust Port w/Dust Hose Hook Variable-Speed Conveyor 5" Aluminum Computer-Balanced Sanding Drum Drum Lifting and Lowering System with Precision DRO Push Button Circuit Breaker for Easy Reset

Model G0920 (Mfd. Since 09/23)

-5-

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-

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Model G0920 (Mfd. Since 09/23)

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.

Model G0920 (Mfd. Since 09/23)

-7-

Additional Safety for Drum Sanders

Serious injury or death can occur from getting hands trapped between workpiece and conveyor table and being pulled into machine, or becoming entangled in rotating parts inside machine. Workpieces thrown by sander can strike nearby operator or bystanders with significant force. Long-term respiratory damage can occur from using sander without proper use of a respirator. To reduce the risk of these hazards, operator and bystanders MUST completely heed the hazards and warnings below.

FEEDING WORKPIECE. Placing fingers between

workpiece and conveyor can result in pinching injuries, or possibly getting trapped and pulled into sanding area of machine. DO NOT place fingers under bottom of workpiece while feeding it into sander.

SANDING DUST. Sanding creates large amounts of fine airborne dust that can lead to eye injury or serious respiratory illness. Reduce your risk by always wearing approved eye and respiratory protection when sanding. Never operate without adequate dust collection system in place and running. However, dust collection is not a substitute for using a respirator.

POWER DISCONNECT. An accidental startup while changing sanding belts or performing adjustments or maintenance can result in serious entanglement or abrasion injuries. Make sure machine is turned OFF, disconnected from power and air, and all moving parts are completely stopped before changing belts, doing adjustments, or performing maintenance.

SANDPAPER CONTACT. Rotating sandpaper can remove a large amount of flesh quickly. Keep hands away from rotating sanding drum(s) during operation. Never touch moving sandpaper.

AVOIDING ENTANGLEMENT. Tie back long hair, remove jewelry, and do not wear loose clothing or gloves. These can easily get caught in moving parts. Never reach inside machine or try to clear jammed workpiece while machine is operating. Keep all guards in place and secure.

WORKPIECE MATERIAL. This sander is designed to sand only natural wood products or man-made products made from natural wood fiber. DO NOT sand any metal products.

WORKPIECE INSPECTION. Nails, staples, knots, or other imperfections in workpiece can be dislodged and thrown from sander at high rate of speed into operator or bystanders, or cause damage to sandpaper or sander. Never try to sand stock that has embedded foreign objects or questionable imperfections.

KICKBACK. Occurs when a workpiece is ejected out the front of sander at a high rate of speed toward operator or bystanders. To reduce risk of kickback-related injuries, always stay out of workpiece path, only feed one board at a time, and always make sure pressure rollers are properly adjusted below sanding roller. Never sand workpieces below minimum specifications listed in Machine Data Sheet.

Like all machinery there is potential danger when operating this machine. Accidents are frequently caused by lack of familiarity or failure to pay attention. Use this machine with respect and caution to decrease the risk of operator injury. If normal safety precautions are overlooked or ignored, serious personal injury may occur.

-8-

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.

Model G0920 (Mfd. Since 09/23)

SECTION 2: POWER SUPPLY

Before installing the machine, consider the availability and proximity of the required power supply circuit. If an existing circuit does not meet the requirements for this machine, a new circuit must be installed. To minimize the risk of electrocution, fire, or equipment damage, installation work and electrical wiring must be done by an electrician or qualified service personnel in accordance with all applicable codes and standards.

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

The full-load current rating is the amperage a machine draws at 100% of the rated output power. On machines with multiple motors, this is the amperage drawn by the largest motor or sum of all motors and electrical devices that might operate at one time during normal operations.

The full-load current is not the maximum amount of amps that the machine will draw. If the machine is overloaded, it will draw additional amps beyond the full-load rating.

If the machine is overloaded for a sufficient length of time, damage, overheating, or fire may result— especially if connected to an undersized circuit. To reduce the risk of these hazards, avoid overloading the machine during operation and make sure it is connected to a power supply circuit that meets the specified circuit requirements.

For your own safety and protection of

Note: Circuit requirements in this manual apply to

a dedicated circuit—where only one machine will be running on the circuit at a time. If machine will be connected to a shared circuit where multiple machines may be running at the same time, consult an electrician or qualified service personnel to ensure circuit is properly sized for safe operation.

A power supply circuit includes all electrical equipment between the breaker box or fuse panel in the building and the machine. The power supply circuit used for this machine must be sized to safely handle the full-load current drawn from the machine for an extended period of time. (If this machine is connected to a circuit protected by fuses, use a time delay fuse marked D.)

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

Availability

Electrocution, fire, shock,

supply.

Full-Load Current Rating

Circuit Information

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

Full-Load Current Rating at 230V .... 8.5 Amps

Model G0920 (Mfd. Since 09/23)

Circuit Requirements

Nominal Voltage .........20 8V, 220V, 230V, 24 0V

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

Phase ........................................... Single-Phase

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

Plug/Receptacle ............................. NEMA 6-15

-9-

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.

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:

Grounding Requirements

This machine MUST be grounded. In the event of certain malfunctions or breakdowns, grounding reduces the risk of electric shock by providing a path of least resistance for electric current.

This machine is equipped with a power cord that has an equipment-grounding wire and a grounding plug. Only insert plug into a matching receptacle (outlet) that is properly installed and grounded in accordance with all local codes and ordinances. DO NOT modify the provided plug!

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

process. DO NOT connect to power until

GROUNDED

6-15 RECEPTACLE

Current Carrying Prongs

6-15 PLUG

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

instructed later in this manual.

Grounding Pin

Figure 1. Typical 6-15 plug and receptacle.

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.

-10 -

Extension Cords

If you must use an extension

Minimum Gauge Size ...........................12 AWG

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

Model G0920 (Mfd. Since 09/23)

SECTION 3: SETUP

The following items are needed, but not included, for the setup/assembly of this machine.

This machine was carefully packaged for safe transport. When unpacking, separate all enclosed items from packaging materials and inspect them for shipping damage.

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.

Needed for Setup

This machine presents serious injury hazards to untrained users. Read through this entire manual to become familiar with the controls and operations before starting the machine!

Wear safety glasses during the entire setup process!

HEAVY LIF T! Straining or crushing injury may occur from improperly lifting machine or some of its parts. To reduce this risk, get help from other people and use a forklift (or other lifting equipment) rated for weight of this machine.

Description Qty

• Lifting Equipment

(Rated for at least 500 lbs.) ........................ 1

• Additional People ....................................... 2

• Safety Glasses (for each person) ........1 Pair

• Wrench or Socket 1⁄2 " ................................. 1

• Wrenches or Sockets 13mm ...................... 2

• Phillips Head Screwdriver #1, #2 ....... 1 Each

• Flat Head Screwdriver 1⁄4" ........................... 1

• Straightedge 36" ......................................... 1

• Dust Hose 4" .............................................. 1

• Hose Clamp 4" ........................................... 1

• Dust Collection System .............................. 1

Note: If you are anchoring the machine to the floor, you will also need a

/2" wrench or socket.

Unpacking

Model G0920 (Mfd. Since 09/23)

If items are damaged

call us immediately at (570) 546-9663.

Save all packaging materials until

-11-

Inventory

The following is a list of items shipped with your machine. Before beginning setup, lay these items out and inventory them.

If any non-proprietary parts are missing (e.g. a nut or a washer), we will gladly replace them; or for the sake of expediency, replacements can be obtained at your local hardware store.

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.

Cabinet (Figure 2) Qty

A. Front Panel ................................................. 1

B. Rear Panel.................................................. 1

C. Left Side Panel ........................................... 1

D. Right Side Panel ......................................... 1

E. Bottom Panel .............................................. 1

F. Top Panel ................................................... 1

G. Rubber Feet ............................................... 4

H. Partition Panels .......................................... 2

I. Slotted Screws 5⁄16"-18 x 3⁄4" ........................ 4

J. Hex Bolts M8-1.25 x 40 .............................. 4

K. Hex Bolts M8-1.25 x 25 .............................. 8

L. Phillips Head Screws M5-.8 x 8 ............... 10

M. Fender Washers 8mm ................................ 4

N. Flat Washers 5⁄16" ........................................ 4

O. Flat Washers 8mm ................................... 16

P. Flat Washers 5mm ................................... 10

Q. Lock Washers 8mm.................................. 12

R. Lock Washers 5mm.................................... 4

S. Hex Nuts

T. Hex Nuts M8-1.25 ....................................... 8

⁄16"-18 ......................................... 4

I J K L N

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Figure 2. Cabinet inventory.

Model G0920 (Mfd. Since 09/23)

Extension Tables (Figure 3) Qty

U. Extension Tables ........................................ 2

V. Right Table Mounting Blocks ...................... 2

W. Left Table Mounting Blocks ........................ 2

X. Right Table Folding Brackets ..................... 2

Y. Left Table Folding Brackets ........................ 2

Z. Table Mounting Brackets ............................ 2

AA. Shoulder Screws M10-1.5 x 65 ................... 4

AB. Flat Head Screws M8-1.25 x 25 ................. 8

AC. Carriage Bolts M8-1.25 x 20 ....................... 8

AD. Cap Screws M8-1.25 x 16 .......................... 8

AE. Flat Washers 10mm ................................... 4

AF. Flat Washers 8mm ................................... 16

AG. Lock Washers 8mm.................................. 16

AH. Lock Nuts M10-1.5 ...................................... 4

AI. Hex Nuts M8-1.25 ....................................... 8

Sander (Figure 4) Qty

AJ. Sander (Not Shown) ................................... 1

AK. Conveyor Table Shims ............................... 2

AL. Battery CR2032 .......................................... 1

AM. Digital Depth Gauge ................................... 1

AN. Arch Mounting Bracket ............................... 1

AO. Drum Height Handwheel ............................ 1

AP. Handwheel Handle ..................................... 1

AQ. Dust Hose Hook ......................................... 1

AR. Phillips Head Screws M5-.8 x 8 ................. 4

AS. Phillips Head Screws M3-.5 x 6 ................. 2

AT. Flat Washers 5mm ..................................... 4

AU. Flat Washers 4mm ..................................... 2

AV. Lock Washers 5mm.................................... 2

V W

AB AC

AR AS

Figure 4. Sander inventory.

Tools (Figure 5) Qty

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

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

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

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

BA. Open-End Wrench 10 x 12mm ................... 1

BB. Open-End Wrench 12 x 14mm ................... 1

BC. Open-End Wrench 14 x 17mm ................... 1

AVAU

AZAXAW

AD AE AF

Figure 3. Extension tables inventory.

Model G0920 (Mfd. Since 09/23)

Figure 5. Tools inventory.

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Hardware Recognition Chart

USE THIS CHART TO MATCH UP HARDWARE DURING THE INVENTORY AND ASSEMBLY PROCESS.

Flat Head Cap Screw

-14-

5mm

Model G0920 (Mfd. Since 09/23)

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.

Power Connection

Model G0920 (Mfd. Since 09/23)

42½"

Figure 6. Minimum working clearances.

Infeed ClearanceOutfeed Clearance

Dust Port

43½"

-15-

Assembly

The machine must be fully assembled before it can be operated. Before beginning the assembly process, refer to all goes smoothly, first clean any ered or coated in heavy-duty rust preventative (if applicable).

3. Attach right side panel to rear panel with (2) M8-1.25 x 25 hex bolts, (4) 8mm flat washers, (2) 8mm lock washers, and (2) M8-1.25 hex nuts (see Figure 8).

Needed for Setup and gather

listed items. To ensure the assembly process

parts that are cov-

To assemble machine:

1. Attach (2) rubber feet to left side panel with

(2) 5⁄16"-18 x 3⁄4" slotted screws, 5⁄16" flat washers, 8mm lock washers, and 5⁄16"-18 hex nuts (see Figure 7).

Note: Nubs on feet should face up to seat in

holes in bottom of panel (see Figure 7).

— If mounting machine to floor, do not attach

feet to panel and proceed to Step 3.

x 2

Left Side

Panel

x 2

Rear

Panel

Figure 8. Right side panel attached to rear

panel.

4. Attach bottom panel to right side panel with (1) M5-.8 x 8 Phillips head screw and 5mm flat washer (see Figure 9).

Right

Side

Panel

Right

Side

Panel

Nub

Rubber Foot

(1 of 2)

Figure 7. Machine feet and fasteners.

2. Repeat Step 1 with right side panel.

-16 -

Bottom

Panel

Figure 9. Bottom panel attached to right side

panel.

Model G0920 (Mfd. Since 09/23)

5. Attach left side panel to rear panel with (2) M8-1.25 x 25 hex bolts, (4) 8mm flat washers, (2) 8mm lock washers, and (2) M8-1.25 hex nuts (see Figure 10).

8. Attach top panel to front and rear panels with (4) M5-.8 x 8 Phillips head screws and 5mm flat washers (see Figure 12).

Rear

x 2

Figure 10. Left side panel attached to rear

6. Attach bottom panel to left side panel with (1)

M5-.8 x 8 Phillips head screw and 5mm flat washer.

7. Attach front panel to side panels with (4) M8-1.25 x 25 hex bolts, (8) 8mm flat washers, (4) 8mm lock washers, and (4) M8-1.25 hex nuts (see Figure 11).

Panel

Left

Side

Panel

panel.

Top

Panel

Figure 12. Top panel attached to front and rear

panels.

9. Attach (1) partition panel to right side panel with (2) M5-.8 x 8 Phillips head screws, 5mm lock washers, and 5mm flat washers (see Figure 13).

x 2

Partition

Panel

x 4

Front

Panel

x 4

Left

Side

Panel

Figure 11. Front panel attached to side panels.

Model G0920 (Mfd. Since 09/23)

Right

Side

Panel

Front

Panel

Figure 13. Partition panel attached to right side

panel.

10. Attach remaining partition panel to left side panel with (2) M5-.8 x 8 Phillips head screws, 5mm lock washers, and 5mm flat washers.

-17-

13. Thread handwheel handle into drum height handwheel (see Figure 16 ).

11. Use assistants or insert forklift forks under- neath sander at locations shown in Figure 14.

14. Install drum height handwheel on shaft

shown in Figure 16 and tighten pre-installed set screw to secure.

15. Attach dust hose hook with (2) pre-installed M6-1 x 16 Phillips head screws (see Figure 16).

Handwheel Handle

Drum Height

Handwheel

x 2

Shaft

Dust Hose

Hook

Figure 14. Locations for lifting.

12. Place sander on stand and attach with (4)

M8-1.25 x 40 hex bolts and 8mm fender washers (see Figure 15).

x 4

Figure 16. Drum height handwheel installed on

sander.

16. Attach digital depth gauge to arch mounting bracket with (2) M3-.5 x 6 Phillips head screws and 4mm flat washers (see Figure 17).

Arch

Mounting

Bracket

Digital Depth

Gauge

Figure 17. Digital depth gauge attached to arch

bracket.

x 2

Figure 15. Attaching sander to cabinet.

-18-

Model G0920 (Mfd. Since 09/23)

17. Attach digital depth gauge to arch body with (2) M5-.8 x 8 Phillips head screws and 5mm flat washers (see Figure 18 ).

x 2

Fixed Brackets

Arch Body

Figure 18. Digital depth gauge installed on

machine.

18. Attach arch mounting bracket to drum case with (2) M5-.8 x 8 Phillips head screws, 5mm lock washers, and 5mm flat washers (see

Figure 19).

19. Install CR2032 battery in digital depth gauge

(see Figure 20).

Battery

Figure 20. Battery installed in depth gauge.

20. Attach (1) right and (1) left table mounting

block to (1) table mounting bracket with (4) M8-1.25 x 25 flat head screws (see Figure 21).

Drum Case

x 2

Arch Mounting Bracket

Figure 19. Arch mounting bracket attached to

drum case.

Table

Mounting Bracket

Mounting Blocks

Figure 21. Table mounting blocks attached to

bracket.

x 4

Model G0920 (Mfd. Since 09/23)

-19 -

Note: Pre-installed shoulder screws in

mounting blocks should face away from other mounting block (see Figure 22).

23. Attach (2) right table folding brackets to right mounting blocks as shown in Figure 24 with (2) M10-1.5 x 65 shoulder screws, 10mm flat washer, and M10-1.5 lock nut.

Pre-Installed

Shoulder Screw

Figure 22. Mounting block installed correctly.

21. Repeat Step 20 with remaining table mount-

ing bracket.

22. Attach (2) table mounting brackets to table frame under conveyor table with (8) M8-1.25 x 16 cap screws, 8mm lock washers, and 8mm flat washers (see Figure 23).

Right

Folding Bracket

Figure 24. Right table folding bracket installed.

24. Repeat Step 23 with (2) left table folding

brackets.

25. Attach (2) extension tables to folding brackets with (8) M8-1.25 x 20 carriage bolts, 8mm flat washers, 8mm lock washers, and M8-1.25 hex nuts (see Figure 25).

Right

Mounting Block

x 2

Conveyor Table

Table

x 8

Figure 23. Table mounting bracket attached to

table frame.

Mounting Bracket

(1 of 2)

Extension Table

(1 of 2)

Folding Bracket

(1 of 4)

Figure 25. Extension tables installed.

x 8

-20-

Model G0920 (Mfd. Since 09/23)

26. Use straightedge to check extension table alignment with conveyor table (see Figure 26).

Extension

Table

Straightedge

Figure 26. Checking extension table alignment.

— If straightedge is flat against conveyor

table and both extension tables, no adjustment is required. If anchoring machine to floor, proceed to Anchoring to Floor on Page 22. Otherwise, proceed to Dust Collection on Page 22.

Conveyor

Table

— If straightedge is still not flat against con-

veyor table and both extension tables, proceed to Step 28.

28. For extension table(s) not aligned to conveyor table, loosen cap screws from Step 22.

29. Adjust (2) set screws shown in Figure 27 until extension table is even with conveyor table.

Figure 27. Location of table alignment set

screws.

— If straightedge is not flat against conveyor

table and both extension tables, proceed to Step 27.

27. For extension table(s) not aligned to conveyor table, loosen carriage bolts from Step 25, adjust table until it is aligned with conveyor table, and tighten bolts.

— If straightedge is flat against conveyor

table and both extension tables, no further adjustment is required. If anchoring machine to floor, proceed to Anchoring to

Floor on Page 22. Otherwise, proceed to Dust Collection on Page 22.

30. Once both extension tables are even with conveyor table, tighten cap screws from Step 22 to secure extension tables.

If anchoring machine to floor, proceed to Anchoring to Floor on Page 22. Otherwise, proceed to Dust Collection on Page 22.

Model G0920 (Mfd. Since 09/23)

-21-

Anchoring to Floor

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.

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

Diameter of Mounting Hardware .................1⁄4"

Anchoring to Concrete Floors

Dust Collection

This machine creates a lot of wood chips/ dust during operation. Breathing airborne dust on a regular basis can result in permanent respiratory illness. Reduce your risk by wearing a respirator and capturing the dust with a dust-collection system.

Minimum CFM at Dust Port: 400 CFM

Do not confuse this CFM recommendation with the rating of the dust collector. To determine the CFM at the dust port, you must consider these variables: (1) CFM rating of the dust collector, (2) hose type and length between the dust collector and the machine, (3) number of branches or wyes, and (4) amount of other open lines throughout the system. Explaining how to calculate these variables is beyond the scope of this manual. Consult an expert or purchase a good dust collection "how-to" book.

Machine Base

Concrete

Figure 28. Popular method for anchoring

machinery to a concrete floor.

Lag Screw

Flat Washer

Lag Shield Anchor

Drilled Hole

To connect dust collection system to machine:

1. Fit 4" dust hose over dust port, as shown in Figure 29, and secure in place with hose

clamp.

Dust Hose

Dust Clamp

Figure 29. Dust hose attached to dust port.

2. Tug hose to make sure it does not come off.

-22-

Note: A tight fit is necessary for proper

performance.

Model G0920 (Mfd. Since 09/23)

Test Run

Once assembly is complete, test run the machine to ensure it is properly connected to power and safety components are functioning correctly.

If you find an unusual problem during the test run, immediately stop the machine, disconnect it from power, and fix the problem BEFORE operating the machine again. The

table in the

SERVICE section of this manual can help.

setup instructions have been performed. Operating an improperly set up machine

Serious injury or death can result from

3. Connect machine to power supply.

4. Turn conveyor feed rate dial all the way counterclockwise (see Figure 31).

5. Push ON button to turn machine ON (see Figure 31).

Troubleshooting

The Test Run consists of verifying the following: 1) The motors power up and run correctly.

using this machine BEFORE understanding its controls and related safety information. DO NOT operate, or allow others to operate, machine until the information is understood.

DO NOT start machine until all preceding

may result in malfunction or unexpected results that can lead to serious injury, death, or machine/property damage.

To test run machine:

ON Button

OFF Button

Conveyor

Feed Rate

Dial

Figure 31. Control panel components.

6. Verify motor operation by slowly turning con-

veyor feed rate dial clockwise. Rotate dial back and forth to test variable-speed function.

Motors should run smoothly and without

unusual vibrations or noises.

7. Turn variable-speed dial all the way counterclockwise, then push OFF button to turn motors OFF (see Figure 31). Congratulations! The Test Run is complete.

1. Clear all setup tools away from machine.

2. Plug drum motor cord 6-15 plug into outlet on

side of switch box (see Figure 30).

Drum Motor

Plug

Figure 30. Feed motor plugged into switch box

outlet.

Model G0920 (Mfd. Since 09/23)

Recommended

Adjustments

For your convenience, the adjustments listed below have been performed at the factory and no further setup is required to operate your machine. However, because of the many variables involved with shipping, some of these adjustments may need to be repeated to ensure optimum results.

• Tracking & Tensioning Conveyor Belt (Page 38).

• Aligning Drum (Page 41).

-23-

SECTION 4: OPERATIONS

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

To reduce risk of eye injury from flying

using machine.

chips or lung damage from breathing dust, always wear safety glasses and a respirator when operating this machine.

To complete a typical operation, the operator does the following:

1. Examines workpiece to verify it is suitable for

sanding and to determine which sanding belt grit size to use.

2. Verifies workpiece has necessary outfeed clearance and support. If workpiece is overly long and difficult to handle, operator uses a roller support stand to assist with feeding.

3. Adjusts drum height to approximate workpiece thickness.

4. Puts on required safety glasses and respirator, and ensures dust collection is connected to dust port.

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.

5. Turns machine and dust collector ON.

6. Feeds workpiece into sander by placing front

end on infeed side of conveyor table and supporting back end until workpiece engages with pressure rollers.

Note: During initial pass with new workpiece,

operator adjusts drum height as necessary so workpiece only makes light contact with sanding belt and does not overload sander.

7. Stands to side of machine and receives workpiece from outfeed side of conveyor table.

8. Rotates workpiece 180° horizontally and repeats Steps 6–7.

9. Lowers height of drum a small amount (typically 1⁄4 of a full rotation of handwheel), then repeats feeding process of workpiece through sander.

-24-

10. Disconnects from power, changes sandpaper to finer grit, and connects to power to repeat sanding passes as needed

11. Tu rn s sander OFF, and disconnects it from power.

Model G0920 (Mfd. Since 09/23)

Inspecting Stock Setting Depth of Cut

Some workpieces are not safe to sand, or they may require further preparation before they can be safely sanded without increasing risk of injury to the operator or damaging the sanding belt or the sander.

Before sanding, inspect all workpieces for the following:

• Material Type: This machine is intended for sanding natural and man-made wood products, and laminate-covered wood products. This machine is NOT designed to sand glass, stone, tile, plastics, drywall, cementious backer board, metal, etc.

Sanding metal objects can increase the risk

of fire. Sanding improper materials increases the risk of respiratory harm to the operator and bystanders due to the especially fine dust inherently created by all types of sanding operations—even if a dust collector is used. Additionally, the life of the machine and sanding belts may be greatly reduced (or immediately damaged) from sanding improper materials.

• Foreign Objects: Nails, staples, dirt, rocks and other foreign objects are often embedded in wood. While sanding, these objects can become dislodged and tear the sanding belt. Always visually inspect your workpiece for these items. If they can't be removed, DO NOT sand the workpiece.

• Wet or "Green" Stock: Sanding wood with a moisture content over 20% causes unnecessary clogging and wear on the sanding belt, increases the risk of kickback, and yields poor results.

The optimum depth of cut will vary based on the type of wood, feed rate, and sandpaper grit. Attempts to remove too much material can cause jamming, wood burning, rapid paper wear or tearing, poor finish, and belt slippage.

Generally, a 1⁄4 turn of the drum height handwheel (1⁄64" or 0.4mm vertical movement) per pass is acceptable for coarser grits or softer woods. A 1⁄8 turn of the handwheel is recommended for finer grits or harder woods. However, use your best judgement to produce good sanding results for your operation.

IMPORTANT: Keep in mind that, although the thickness of the workpiece is reduced during sanding, this process is not a replacement for thickness planing, which should be done with a planer or other acceptable tool/machine before beginning the sanding process.

NOTICE

Taking excessive depth of cut could cause drum motor to exceed available power source amperage. In this case, motor or power source circuit breaker will trip. If this should happen, disconnect machine from power, allow motor to cool, reset circuit breaker, then take smaller depth of cut.

To set depth of cut:

1. Loosen drum height lock knob (see

Figure 32).

Drum Height

Lock Knob

• Excessive Warping: Workpieces with excessive cupping, bowing, or twisting are dangerous to sand because they are unstable and often unpredictable when being sanded. DO NOT use workpieces with these characteristics!

Model G0920 (Mfd. Since 09/23)

Figure 32. Drum height lock knob location.

-25-

2. Rotate drum height handwheel (see Figure

33) until sanding drum is well above conveyor

table, then lower sanding drum, allowing a gap between workpiece and sanding drum.

Using

Digital Depth Gauge

Note: When adjusting drum to sand thick-

er workpiece, raise and then lower drum to remove backlash from adjustment mechanism.

Drum Height

Handwheel

Sanding Drum

Conveyor

Table

Figure 33. Drum height components.

3. Turn machine ON and feed workpiece into

sander. SLOWLY lower sanding drum until workpiece makes light contact with sanding drum. This is correct height to begin sanding workpiece.

4. After initial pass, turn handwheel 1⁄4 turn (1⁄64" or 0.4mm) or less; the maximum depth for most sanding conditions.

The digital depth gauge offers a precise reading of the distance between the table and the sanding drum when it is calibrated correctly. This reading is most useful when sanding workpieces of the same thickness, or when matching a thickness to create identical workpieces.

Press the ON/OFF button to display workpiece thickness, and the mm/in button to toggle between millimeters and inches (see Figure 34). The HOLD button will keep the displayed value from changing even when the drum height is changed, while the ABS button will switch to Absolute Value mode (where the distance from zero is displayed as a positive value).

ON/OFF

Button

ABS

Button

HOLD

Button

mm/in

Button

Note: Each full turn of table elevation

handwheel raises conveyor table approximately 0.06" (1⁄16") or 1.5mm.

-26-

Figure 34. Digital depth gauge controls.

The depth gauge will turn ON automatically whenever drum height is changed. Once desired workpiece thickness is set, turn the gauge OFF to conserve the battery.

Model G0920 (Mfd. Since 09/23)

Follow the steps below to calibrate the digital depth gauge whenever the battery is changed.

Adjusting Conveyor

To calibrate digital depth gauge:

1. With sanding belt installed, lower drum until it

contacts conveyor belt on table.

2. Press ZERO button to calibrate gauge to absolute zero (see Figure 35).

ZERO Button

Feed Rate

The conveyor feed rate dial (see Figure 36) allows you to increase the feed rate from 0–10 FPM. The correct speed to use depends on the type of stock you are using (hardwood vs. softwood) and the stage of finish with that workpiece.

Conveyor

Feed Rate

Dial

Figure 35. Location of ZERO button.

Figure 36. Location of conveyor feed rate dial.

As a general rule, a slower feed rate will sand the surface smoother, but runs the risk of burning the wood; a faster feed rate will remove material faster, but runs the risk of overloading the motor or damaging the sandpaper.

Use trial-and-error to determine the best settings for your specific applications.

To adjust feed belt speed:

1. Turn machine ON.

2. Rotate conveyor feed rate dial (see Figure

36) clockwise to increase feed speed or

counterclockwise to decrease conveyor feed speed.

Model G0920 (Mfd. Since 09/23)

-27-

Sanding Tips

• Feed boards into the sander at different places on the conveyor to maximize sandpaper life and prevent uneven conveyor belt wear.

• WARNING: DO NOT edge sand boards. This can cause boards to kickback, causing serious personal injury. Edge sanding boards also can cause damage to the conveyor belt and sandpaper.

• WARNING: DO NOT sand more than one board at a time side by side. Minor variations in thickness can cause one board to be propelled by the rapidly spinning sanding drum and ejected from the machine.

• WARNING: NEVER stand directly in front of the infeed area of the machine. Failure to do so could result in severe personal injury.

• NOTICE: Overloading the motor or pushing the sander to failure weakens the electrical system. Repeatedly doing so is abuse to the machine that will cause motor, capacitor, or circuit breaker damage, which is not covered under warranty.

• NOTICE: DO NOT sand boards less than 9" long or less than 1⁄4" thick to prevent damage to the workpiece and the drum sander.

• NOTICE: Sanding workpieces with high- resin content or with applied finishes can quickly contaminate sandpaper beyond the point where it can be properly cleaned. This will produce poor sanding results. In this case, use a different workpiece, remove the applied finishes, or frequently clean/replace the sandpaper strip.

• Extend the life of the sandpaper by regularly using a PRO-STIK® sanding pad (see Page 33).

• Run wide stock through two or three times without adjusting table height. Turn stock 180° between passes to ensure an evenly sanded surface.

• When sanding workpieces with irregular surfaces, such as cabinet doors, take very light sanding passes to prevent gouges. When the drum moves from sanding a wide surface to sanding a narrow surface, the load on the motor will be reduced, and the drum will speed up, causing a gouge.

• When sanding workpieces with a bow or crown, place the high point up or cupped side down to prevent the workpiece from rocking and take very light passes.

• Feed the workpiece at an angle to maximize stock removal and sandpaper effectiveness, but feed the workpiece straight to reduce sandpaper grit scratches for the finish passes.

• Replace coarse grit sandpaper with a finer grit to achieve a smoother finish.

• Lower the drum a maximum of 1⁄4 turn of the handwheel until the workpiece is the desired thickness.

• Reduce snipe when sanding more than one board of the same thickness by feeding them into the sander with the front end of the second board touching the back end of the first board.

-28-

Model G0920 (Mfd. Since 09/23)

Choosing Sandpaper

There are many types of sanding belts to choose from. We recommend aluminum oxide for general workshop environments. Below is a chart that groups abrasives into different classes, and shows which grits fall into each class.

Replacing

Sandpaper

The Model G0920 is designed for 3" wide sandpaper rolls. Turn to SECTION 5: ACCESSORIES on Page 32 for grit selection and model numbers.

Grit Class Usage

60 Coarse Fast sanding, dimen-

sioning, and glue removal.

80–100 Medium Removing planer

marks and initial finish sanding.

120 –180 Fine Finish sanding.

The general rule of thumb is to sand a workpiece with progressively higher grit numbers, with no one grit increase of more than 50. Avoid skipping grits; the larger the grit increase, the harder it will be to remove the scratches from the previous grit.

Ultimately, the type of wood you use and your stage of finish will determine the best grit types to install on your sander.

Items Needed Qty

Replacement Sandpaper 3" x 127" ................... 1

Carton Cutter or Utility Knife ............................. 1

To change sandpaper:

1. DISCONNECT MACHINE FROM POWER!

2. Remove drum door lock knob shown in Figure 37 to open drum door.

Drum Door

Lock Knob

Model G0920 (Mfd. Since 09/23)

Figure 37. Location of drum door lock knob.

-29-

3. Squeeze right clamp and remove sandpaper from clamp (see Figure 38).

Sandpaper

Right Clamp

7. Insert corner of new sandpaper in slot at left side of drum and clamp with left clamp as shown in Figure 40.

Note: Angled side of sandpaper must be

flush with left drum edge. If sandpaper overlaps edge, you may have difficulty closing cover.

Sandpaper

Figure 38. Right clamp pushed forward to

release sanding belt.

4. Rotate drum to carefully remove sandpaper strip until you reach left clamp.

Note: Take care not to rip or tear old sand-

paper, so it can be used as template when cutting out replacement sandpaper strip. This is easier than using drawing shown in Figure 39.

5. Squeeze left clamp to release last of sandpaper.

6. Use old sandpaper strip as pattern, if at all possible. Otherwise, use pattern in Figure 39 to cut new piece of sandpaper to necessary shape. After cutting 15" angled sides, measure 13/8" along same sides and cut off ends with knife.

Left Clamp

Figure 40. New sandpaper clamped to drum on

left side.

8. Wrap sandpaper around drum (see Figure

41), ensuring there are no bubbles or over-

lapping edges.

127"

Grit Side Down

Figure 39. Sandpaper pattern for drum.

-30-

Figure 41. Wrapping sandpaper around drum.

Model G0920 (Mfd. Since 09/23)

9. When sandpaper reaches right side of drum, tuck sandpaper into right slot and clamp with right clamp. Sandpaper should sit flat against roller and not overlap at any point.

Folding

Extension Tables

— If sandpaper does not reach right slot and

clamp you may have inserted sandpaper too deeply into left slot and clamp. Unwrap sandpaper and repeat Steps 7–9.

— If sandpaper does not fit into slot, you may

have placed too little sandpaper into left slot and clamp. Unwrap sandpaper and repeat Steps 7–9.

10. When sandpaper sits flat against roller, does not overlap at any point, and is secured in both clamps evenly, close drum door and secure with lock knob removed in Step 2.

If sandpaper strip comes loose during operation, it could cause workpiece to bind and kickback at operator, which could result in serious personal injury. Always make sure sandpaper strip is properly installed and firmly secured by clamping devices before connecting sander to power.

The extension tables can be folded down and out of the way when the extra support length is not needed.

Press the shoulder cap screw shown in Figure 42 on either side of the extension table you wish to fold, and table will swing down.

Figure 42. Location of table folding screws.

Note: If the extension tables do not fold when the

above screws are pressed, the shoulder screw in Figure 43 must be loosened on either side.

Model G0920 (Mfd. Since 09/23)

Shoulder

Screw

Figure 43. Folding bracket shoulder screws.

-31-

ACCESSORIES

Installing unapproved accessories may

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

SECTION 5: ACCESSORIES

cause machine to malfunction, resulting in serious personal injury or machine damage. To reduce this risk, only install accessories

recommended for this machine by Grizzly.

NOTICE

Refer to our website or latest catalog for additional recommended accessories.

Aluminum Oxide Sanding Rolls 3" x 22' T23880—60-Grit: Use for thickness sanding and

glue removal.

T23881—80-Grit: Use for removing planer marks

and initial finish sanding.

T23882—100-Grit: Use for removing planer

marks and initial finish sanding.

T23883—120-Grit: Use for finish sanding. T23884—150-Grit: Use for finish sanding. T23885—180-Grit: Use for finish sanding. T23886—220-Grit: Use for finish sanding.

T28172 —14" x 39" Heavy-Duty Roller Table T28369 —14" x 78" Heavy-Duty Roller Table T28370 —14" x 118" Heavy-Duty Roller Table

Increase material handling and processing efficiency with one or more of these Heavy-Duty Roller Tables. Ideal for easily positioning material for cross cutting or cutting to length using a chop saw or metal cutting bandsaw. Simply place a roller table on one or both sides of your saw and production time is automatically improved!

Figure 45. Heavy-duty roller tables.

G1163P—1 HP Floor Model Dust Collector G0710—1 HP Wall-Mount Dust Collector

Excellent point-of-use dust collectors that can be used next to the machine with only a small amount of ducting. Specifications: 450 CFM, 7.2" static pressure, 2-cubic-foot bag, and 30-micron filter. Motor is 1HP, 110V/220V, 14A/7A.

Model G0710

Figure 44. 3" x 22' A/O sanding rolls.

-32-

Figure 46. Point-of-use dust collectors.

Model G0920 (Mfd. Since 09/23)

Model G1163P

SECTION 6: MAINTENANCE

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

maintenance, or service.

Schedule

For optimum performance from this machine, this maintenance schedule must be strictly followed.

Cleaning

Sanding Belts

To increase the working life of your sanding belts, clean them whenever they decrease in performance due to heavy loading of material. Use a Model D3003 PRO-STIK® Cleaning Pad as shown in Figure 47.

To clean sanding belt:

1. DISCONNECT MACHINE FROM POWER!

Ongoing

To minimize your risk of injury and maintain proper machine operation, shut down the machine immediately if you ever observe any of the items below, and fix the problem before continuing operations:

• Loose mounting bolts.

• Damaged sanding belt.

• Worn switch.

• Worn or damaged cords or plugs.

• Any other unsafe condition.

Daily Maintenance

• Lubricate feed belt roller and drive bushings.

Monthly Check

• Clean/vacuum dust buildup from inside cabinet and off motor.

Biannual Maintenance

• Lubricate elevation leadscrew and slides.

2. Set drum height to thickness of cleaning pad.

3. Connect machine to power, then run pad

through sander two or three times. DO NOT take too deep of a cut—the belt should barely touch cleaning pad!

Model D3003 PRO-STIK® Cleaning Pad

Extend the life of your sandpaper! Just feed this crepe-rubber cleaning pad through your drum sander to remove dust build-up from the sandpaper without damage. Measures 15" x 20" x 3⁄4".

Cleaning Machine

Cleaning the Model G0920 is relatively easy. Vacuum excess wood chips and sawdust, and wipe off the remaining dust with a dry cloth. If any resin has built up, use a resin dissolving cleaner to remove it.

Model G0920 (Mfd. Since 09/23)

Figure 47. D3003 PRO-STIK® Cleaning Pad.

-33-

Lubrication

The bearings on the Model G0920 have been lubricated and sealed at the factory. No other care of these bearings is necessary unless they need replacement.

The feed belt bushings should be lubricated daily while the elevation leadscrew and slides should be lubricated periodically, depending on usage. See below for some lubrication products that Grizzly offers. Figure 49. Bushing lubrication locations.

Bushings

(2 of 4)

T26685—ISO 32 Moly-D Machine Oil, 1 Gal. T23963—ISO 32 Moly-D Machine Oil, 5 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. Buy in bulk and save with 5-gallon quantities.

T26685 T23963

Figure 48. ISO 32 machine oil.

Avoid using excess lubrication. Too much lubricant attracts sawdust and will clog the belt bushings.

Elevation Leadscrew & Slides

Lubrication Type ....................................Dry Lube

Oil Amount ......................................... As Needed

Check/Add Frequency .......................... 6 Months

Lubricate the elevation leadscrew and slides with dry lubrication every six months. Clean the screw and slides (see Figure 50, then apply lubrication on screw threads and slides. Move the drum up and down to spread the lubrication thoroughly.

Elevation Slide

(1 of 2)

Elevation

Leadscrew

Bushings

Lubrication Type ............ Model T26685 (ISO 32)

Oil Amount ......................................... As Needed

Check/Add Frequency ................................. Daily

Oil the bushings on each end of the conveyor belt feed rollers (see Figure 49).

-34-

Figure 50. Elevation lubrication locations.

Model G0920 (Mfd. Since 09/23)

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 power supply breaker immediately trips after startup.

Machine turns ON but conveyor belt does not start/ stalls.

Machine stalls or is underpowered.

1. Machine circuit breaker tripped.

2. Incorrect power supply voltage or circuit size.

3. Power supply circuit breaker tripped or fuse blown.

4. Motor wires connected incorrectly.

5. Start capacitor at fault.

6. Extension cord too long.

7. Wiring broken, disconnected, or corroded.

8. ON/OFF or machine circuit breaker switch at fault.

9. Centrifugal switch adjustment/contact points at fault.

10. Circuit board at fault.

11. Drum motor or drum motor bearings at fault.

1. Motor brushes worn out.

2. Variable-speed dial/potentiometer at fault.

3. Circuit board at fault.

4. Conveyor feed motor or bearings at fault.

1. Workpiece material not suitable for machine.

2. Feed rate/sanding depth too great.

3. Machine undersized for task.

4. Too much pressure on pressure rollers.

5. Motor overheated, tripping machine circuit breaker.

6. Run capacitor at fault.

7. Extension cord too long.

8. Centrifugal switch/contact points at fault.

9. Motor or motor bearings at fault.

1. Reset circuit breaker.

2. Ensure correct power supply voltage and circuit size.

3. Ensure circuit is free of shorts. Reset circuit breaker or replace fuse.

4. Correct motor wiring connections.

5. Test/replace if at fault.

6. Move machine closer to power supply; use shorter extension cord.

7. Fix broken wires or disconnected/corroded connections.

8. Replace switch/circuit breaker.

9. Adjust centrifugal switch/clean contact points. Replace either if at fault.

10. Inspect/replace if at fault.

11. Replace drum motor.

1. Remove/replace both brushes as a set (Page 45).

2. Inspect/replace if at fault.

3. Inspect/replace if at fault.

4. Replace conveyor feed motor.

1. Only sand wood/ensure moisture is below 20%.

2. Reduce feed rate (Page 27)/sanding depth (Page 25).

3. Clean (Page 33)/replace (Page 29) sandpaper.

4. Reduce pressure roller pressure.

5. Clean motor/let cool, and reduce workload. Reset breaker.

6. Test/repair/replace.

7. Move machine closer to power supply; use shorter extension cord.

8. Adjust centrifugal switch/clean contact points. Replace either if at fault.

9. Replace motor.

Model G0920 (Mfd. Since 09/23)

-35-

Motor & Electrical (Cont.)

Symptom Possible Cause Possible Solution

Machine has vibration or noisy operation.

1. Motor, motor mount, or component loose.

2. Stand feet not adjusted properly.

3. Loose/worn drum bearings.

4. Motor fan rubbing on fan cover.

5. Centrifugal switch/contact points at fault.

6. Motor bearings at fault.

1. Replace damaged or missing bolts/nuts or tighten if loose.

2. Adjust stand feet to stabilize machine.

3. Tighten/replace drum bearings.

4. Fix/replace motor fan cover or loose/damaged fan.

5. Adjust centrifugal switch/clean contact points. Replace either if at fault.

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

Operation

Symptom Possible Cause Possible Solution

Sandpaper clogs quickly.

Sandpaper comes off of drum or is loose.

Sandpaper tears off drum.

Burn marks on workpiece.

Glazed workpiece surface after sanding.

Workpiece slips on conveyor or kicks out.

Conveyor belt slips or does not track correctly.

1. Sanding depth too deep/feed rate too slow.

2. Workpiece has high moisture content or sap.

3. Incorrect sandpaper grit.

4. Poor dust collection.

5. Sandpaper loaded with sawdust and gum.

6. Worn sandpaper.

1. Sandpaper not properly wrapped onto drum.

2. Sandpaper not cut to correct dimensions.

3. Torn or damaged sandpaper.

4. Foreign object in workpiece.

5. Sanding drum not parallel to table.

1. Sanding drum not parallel with table.

2. Sandpaper overlapping.

3. Sanding depth is too deep.

1. Using too ﬁne of sanding grit for sanding depth.

2. Sandpaper loaded with sawdust and gum.

3. Feed rate too slow.

4. Sandpaper not properly wrapped onto drum.

5. Worn sandpaper.

1. Sanding wet stock.

2. Sandpaper loaded with sawdust and gum.

3. Sanding stock with high amount of applied ﬁnishes.

1. Sanding depth too deep/feed rate too fast.

2. Conveyor belt dirty or worn.

3. Pressure rollers not properly adjusted.

1. Conveyor belt tension not properly adjusted.

2. Conveyor belt tracking not properly adjusted.

3. Conveyor belt worn.

4. Workpiece too heavy.

1. Reduce sanding depth (Page 25)/increase feed rate (Page 27).

2. Use different stock, or accept characteristics and plan on cleaning (Page 33)/replacing (Page 29) sandpaper frequently; remove applied ﬁnishes before sanding.

3. Use correct sandpaper grit for operation (Page 29).

4. Unclog ducts; close gates to improve suction; redesign dust collection system.

5. Clean (Page 33)/replace (Page 29) sandpaper.

6. Replace sandpaper (Page 29).

1. Re-install sandpaper (Page 29).

2. Use sandpaper cut to correct dimensions (Page 30).

3. Replace sandpaper (Page 29).

4. Sand only clean workpieces.

5. Align sanding drum to table (Page 41).

1. Adjust sanding drum parallel to table (Page 41).

2. Re-install sandpaper (Page 29).

3. Reduce sanding depth (Page 25).

1. Use coarser grit sandpaper (Page 29) or decrease sanding depth (Page 25).

2. Clean (Page 33)/replace (Page 29) sandpaper.

3. Increase feed rate (Page 27).

4. Re-install sandpaper (Page 29).

5. Replace sandpaper (Page 29).

1. Only sand stock that has moisture content below 20%.

2. Clean (Page 33)/replace (Page 29) sandpaper.

3. Use different stock, or accept characteristics and plan on cleaning (Page 33)/replacing (Page 29) sandpaper frequently; remove applied ﬁnishes before sanding.

1. Reduce sanding depth (Page 25)/feed rate (Page 27).

2. Clean/replace conveyor belt (Page 39).

3. Properly adjust pressure roller height (Page 44).

1. Properly adjust conveyor belt tension (Page 38).

2. Properly adjust conveyor belt tracking (Page 38).

3. Replace conveyor belt (Page 39).

4. Use lighter workpiece.

-36-

Model G0920 (Mfd. Since 09/23)

Operation (Cont.)

Symptom Possible Cause Possible Solution

Uneven workpiece thickness from side to side.

Drum height handwheel hard to rotate.

Workpiece pulls to one side during sanding operations.

Ripples or lines in workpiece.

Snipe marks in workpiece.

Poor dust collection.

1. Drum height lock knob not tight and sanding drum deﬂects up.

2. Sanding drum not parallel to table.

3. Gibs too loose.

4. Conveyor belt worn.

1. Drum height lock knob too tight.

2. Leadscrew and nut clogged with sawdust.

3. Gibs too tight.

1. Sanding drum not parallel with table. 1. Adjust sanding drum parallel to table (Page 41).

1. Uneven feed rate.

2. Conveyor belt ﬂexing or vibrating.

3. Sanding drum deﬂecting from workpiece.

1. Pressure rollers not properly adjusted.

2. Workpiece too long to be supported without additional help.

3. Incorrect sandpaper grit.

1. Dust collection lines incorrectly sized for this machine.

2. Dust collector underpowered or too far away from machine.

1. Fully tighten lock knob after setting drum height.

2. Align sanding drum to table (Page 41).

3. Adjust gibs (Page 41).

4. Replace conveyor belt (Page 39).

1. Loosen drum height lock knob.

2. Clean and lubricate leadscrew and nut (Page 34).

3. Adjust gibs (Page 41).

1. Maintain even feed rate through entire sanding operation.

2. Reduce sanding depth (Page 25)/reduce feed rate (Page 27). Tighten loose fasteners.

3. Make sure drum height lock knob is tight.

1. Properly adjust pressure roller height (Page 44).

2. Use an assistant or roller stands/tables on infeed and outfeed ends of conveyor to keep workpiece from bending.

3. Use correct sandpaper grit for operation (Page 29).

1. Use at least an 8" main line with two 6" branch lines that each Y into 4" at machine.

2. Upgrade dust collector or decrease distance from dust collector to machine.

Model G0920 (Mfd. Since 09/23)

-37-

Tracking &

Tensioning

Tracking Conveyor Belt

1. Turn machine ON and watch conveyor belt

track.

Conveyor Belt

The conveyor belt must track straight. If the feed belt tracks to either side, then the tracking must be corrected or the conveyor belt will become damaged and have to be replaced. The tracking was properly set at the factory, but wear may cause it to track unevenly eventually.

Tracking the conveyor belt is a balancing process that takes patience and some trial-and-error. Usually you must over-tighten the loose side to make the belt move to the middle of the rollers, then loosen that same side to make the feed belt stay in position. If the tracking screw is overadjusted, then the process will need to be repeated until the conveyor belt stays in the middle.

The conveyor belt will stretch when new and will eventually need to be tensioned. This is most obvious if the conveyor belt starts slipping on the rollers.

— If belt quickly moves to one side, immedi-

ately stop machine and adjust belt tracking before running conveyor again. Proceed to Step 2.

— If belt tracks evenly, no adjustment is

required.

2. Hold lock nut still on side that conveyor belt tracks towards and tension tracking adjustment screw until conveyor belt tracks in opposite direction (see Figure 51).

Note: Small tracking changes may take up to

three minutes before they are noticeable.

Lock Nut

When you tension the conveyor belt, focus on adjusting the tensioning bolts in even increments. Adjusting one side more than the other will cause tracking problems, which will require you to make additional adjustments to get the sander tracking correctly again.

Items Needed Qty

Open-End Wrench 10mm .................................. 1

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

Calipers ............................................................. 1

Working around moving conveyor and parts presents pinch/entanglement hazards that can cause personal injury. Use extreme care to keep hands clear of in-running pinch points while adjusting tracking nut/screw when machine is running. Roll up sleeves and do not wear gloves or other apparel that could become entangled in moving parts.

Tracking Adjustment

Screw

Figure 51. Conveyor belt tracking adjustment

screw and lock nut.

3. When conveyor belt is near middle of rollers or table, loosen tracking adjustment screw while holding lock nut still until feed belt stops moving and tracks straight.

— If conveyor belt tracks too far to other side,

hold lock still and loosen tracking adjustment screw as necessary to bring it back. Repeat Steps 2–3 until tracking is correct.

4. Tracking affects tension, so refer to Tensioning Conveyor Belt on next page.

-38-

Model G0920 (Mfd. Since 09/23)

Tensioning Conveyor Belt

1. Turn machine ON and confirm that conveyor

belt tracking does not need to be adjusted. Refer to Tracking Conveyor Belt.

Replacing

Conveyor Belt

2. Check that ends of both tensioning screws

extend evenly approximately 1/4" beyond lock nut, as shown in Figure 52.

Screw Extends

Approximately 1⁄4"

Figure 52. Example of tensioning screw

extending beyond lock nut.

— If belt slips during operation, rotate screws

clockwise in small amounts while holding lock nuts still (see Figure 53) until belt no longer slips on the rollers.

Replacing the conveyor belt is a relatively simple process, but it will require re-tensioning and tracking once the new conveyor belt is installed.

Items Needed Qty

Permanent Marker ............................................. 1

Open-End Wrench 11mm .................................. 1

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

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

An Assistant ...................................................... 1

Replacement Conveyor Belt (P0920009) .......... 1

Calipers ............................................................. 1

To replace conveyor belt:

1. DISCONNECT MACHINE FROM POWER!

2. Use permanent marker to mark feed belt

tensioning screws where they extend beyond lock nuts (see Figure 52). This step will aid you in returning screws to their original position, reducing amount of tracking and tensioning necessary.

Lock Nut

Tracking Adjustment

Screw

Figure 53. Conveyor belt tracking adjustment

screw and lock nut.

Note: When tensioned properly, belt should

not lift off table, slide back and forth, or slip.

DO NOT over-tension conveyor belt. This may cause premature wearing of belt and bushings, and cause strain on motor.

3. Fully release belt tension (see Tracking & Tensioning Conveyor Belt on Page 38 for

detailed instructions).

4. Remove (4) table cap screws and flat washers shown in Figure 54.

x 4

Figure 54. Location of table cap screws.

Model G0920 (Mfd. Since 09/23)

-39-

5. Have an assistant help you remove feed table and motor assembly from machine.

Making Blocks

6. Slide conveyor belt off of table and clean any

dirt or dust off of table and rollers.

7. Slide new conveyor belt on then re-install feed table and motor assembly on machine.

8. Re-install hardware removed in Step 4.

9. Tighten tensioning screws until lines marked in Step 2 extend just beyond lock nuts.

Note: Conveyor belt will stretch slightly when

new and will need to be re-tensioned after short amount of use.

10. Track and tension new conveyor belt according to instructions on Page 38.

Note: One side of belt may need to be tighter

than other for belt to track straight.

The blocks described here will be required to complete the remaining service procedures in this section.

Items Needed Qty

6' Long 2x4 ........................................................ 1

Miter Saw (or Circular Saw) ............................... 1

Jointer ................................................................ 1

Table Saw .......................................................... 1

To make blocks:

1. Edge joint concave edge of 2x4 flat on jointer, as shown in Figure 55.

Figure 55. Edge jointing on jointer.

2. Place jointed edge of 2x4 against table saw

fence and rip cut just enough off opposite side to square up two edges of 2x4, as shown in Figure 56.

Opposite Edge Rip

Cut with

Table Saw

Previously

Jointed

Edge

Figure 56. Rip cutting on table saw.

3. Cut 2x4 into two even pieces to make two 36"

long wood gauge blocks.

Note: Steps 1-2 can be skipped, but hav-

ing gauge blocks of equal height is critical to accuracy of adjustments.

-40-

Model G0920 (Mfd. Since 09/23)

Adjusting Gibs

Aligning Drum

The gibs apply pressure to the slides of the sanding head (see Figure 57). This allows the sanding head assembly to accurately move up and down when using the drum height handwheel.

Slides

Lock Nuts

Figure 57. Location of rear slide and lock nut.

If the gibs are too loose, the sanding drum will deflect up during operation, which will result in poor sanding results.

If the gibs are too tight, it will be difficult to adjust the sanding drum height, which will cause excessive wear on the parts of the elevation system.

Tools Needed Qty

Socket 13mm ..................................................... 1

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

To adjust gibs:

Aligning the drum parallel to the conveyor belt (see Figure 58) is critical for sanding accuracy. Care should be taken to make the tolerances as close as possible (within 0.010" from one side to the other) when adjusting the drum height.

CORRECT

Sanding Drum

Conveyor Belt

A B

(Within 0.010" side-to-side)

(Front View)

INCORRECT

Sanding Drum

Conveyor Belt

Figure 58. Drum parallel to conveyor belt.

Aligning Drum

Tools Needed: Qty

Wrench or Socket 13mm, 17mm ....................... 1

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

Gauge Blocks .................................................... 2

Feeler Gauge Set .............................................. 1

1. DISCONNECT MACHINE FROM POWER!

2. Adjust lock nuts shown in Figure 57 on both

gibs an equal amount, by 1/4 turns.

3. Rotate drum height handwheel to test drum movement.

Note: Tighten lock nuts to increase gib

pressure.

4. Repeat Step 2–3 until you are satisfied with drum movement.

Model G0920 (Mfd. Since 09/23)

To align sanding drum:

1. DISCONNECT MACHINE FROM POWER!

2. Make sure gibs are properly adjusted (refer to Adjusting Gibs).

-41-

3. Remove sandpaper from drum and place gauge blocks as shown in Figure 59.

8. Loosen (4) lock nuts and (2) hex bolts shown in Figure 60.

x 4

Figure 59. Example of gauge blocks placed

under drum.

4. Lower drum until gauge blocks just touch drum.

5. Raise drum one full crank of handwheel.

6. Starting at A board (see Figure 59), find larg-

est size feeler gauge that can pass between drum and your gauge block. (Feeler gauge should slide with moderate resistance, without forcing drum to roll.)

7. Repeat Step 6 at B board.

— If difference between A and B is 0.010" or

less, then no adjustment is necessary.

— If difference between A and B is more than

0.010", then one end must be adjusted to within 0.010" of other. Proceed to Step 8.

Figure 60. Mounting hardware to loosen for

drum adjustment.

9. Refer to measurements taken in Steps 6–7.

— If A measurement was larger than B mea-

surement, loosen (2) hex nuts shown in Figure 61 and tighten (2) hex bolts until measurements are equal.

-42-

Figure 61. Adjustment hardware for right side.

Model G0920 (Mfd. Since 09/23)

— If B measurement was larger than A mea-

surement, loosen (2) hex nuts shown in Figure 62 and tighten (2) hex bolts until measurements are equal.

Figure 62. Adjustment hardware for left side.

To add conveyor table shims:

1. DISCONNECT MACHINE FROM POWER!

2. Remove (2) table cap screws and flat wash-

ers shown in Figure 63.

x 2

10. When difference between A and B is 0.002" or less, tighten hex nuts loosened in Step 9 to secure setting.

— If hex bolt are adjusted and A still exceeds

B by more than 0.002", use included conveyor table shims to further adjust alignment (see Adding Conveyor Table

Shims for detailed instructions).

11. Tighten hex bolts from Step 8.

12. Repeat Steps 6–7 to confirm difference

between A and B is 0.010" or less before installing sandpaper and resuming operation.

Adding Conveyor Table Shims

The conveyor table shims included with the G0920 can be inserted between the conveyor table and the drum lift adjustment plate to aid in drum alignment.

Items Needed Qty

An Assistant ...................................................... 1

Wrench or Socket 10, 12mm .......................1 Ea.

Hex Wrench 5mm, 6mm ..............................1 Ea.

Gauge Blocks .................................................... 2

Feeler Gauge Set .............................................. 1

Figure 63. Location of table cap screws.

3. Have an assistant lift left side of drum just

enough so you can insert shim(s) between drum lift adjustment plate and conveyor table (see Figure 64).

Drum Lift

Adjustment

Plate

Shim

(1 of 2)

Figure 64. Shim inserted between drum lift

adjustment plate and conveyor table.

4. Re-install hardware removed in Step 2.

5. Refer to Aligning Drum on Page 41 to

check/adjust drum alignment before tightening hex bolts in Figure 60 on Page 42 to secure adjustments.

Model G0920 (Mfd. Since 09/23)

-43-

Adjusting

3. Lower drum until blocks just touch the rear

pressure roller.

Pressure Rollers

Two spring-loaded pressure rollers help maintain consistent pressure on the workpiece as it passes the sanding drum. The pressure rollers have been set correctly at the factory. DO NOT adjust the pressure rollers unless absolutely necessary.

When properly positioned, the pressure rollers should be approximately 0.004" lower than the drum.

Adjusting the pressure rollers is a fine balance between too much pressure and not enough. Too much pressure can cause problems like snipe or overloading the motor. Not enough pressure may allow the workpiece to kick out of the sander towards the operator.

Items Needed Qty

Gauge Blocks (see Page 40) ............................ 2

Feeler Gauge Set .............................................. 1

Hex Wrench 5/32", 5mm ................................1 Ea.

To adjust pressure rollers:

1. DISCONNECT MACHINE FROM POWER!

4. Find largest size feeler gauge that can pass

between sanding drum and gauge block. (Feeler gauge should slide with moderate resistance, without forcing drum to roll.)

— If gap is 0.004" (0.1mm) or less, then no

adjustment of rear pressure roller is necessary. Proceed to Step 5 to check front pressure roller.

— If gap is more than 0.004" (0.1mm), then

rear pressure roller must be adjusted. Proceed to Step 5 to check front pressure roller before adjusting.

5. Lower drum until gauge blocks just touch drum.

6. Find largest size feeler gauge that can pass between front pressure roller and gauge block. (Feeler gauge should slide with moderate resistance, without forcing drum to roll.)

— If gap is 0.004" (0.1mm) or less, then

no adjustment of front pressure plate is necessary. If rear pressure roller required adjustment, proceed to Step 7, otherwise pressure rollers should not be adjusted.

2. Place gauge blocks on feed belt as shown in Figure 65.

Figure 65. Example of gauge blocks placed

under drums.

— If gap is more than 0.004" (0.1mm), then

front pressure plate must be adjusted. Proceed to Step 7.

7. Remove drum door lock knob shown in Figure 66 to open drum door.

Drum Door

Lock Knob

Figure 66. Location of drum door lock knob.

-44-

Model G0920 (Mfd. Since 09/23)

8. At each end of pressure roller that requires adjustment, tighten set shown in Figure 67 an equal amount.

Replacing Brushes

This sander is equipped with a universal motor that uses two carbon brushes to transmit electrical current inside the motor. These brushes are considered to be regular "wear items" or "consumables" that will need to be replaced during the life of the motor. The frequency of required replacement is often related to how much the motor is used and how hard it is pushed.

Replace the carbon brushes at the same time when the motor no longer reaches full power, or when the brushes measure less than 1⁄4" long (new brushes are 5⁄8" long).

Figure 67. Pressure roller adjustment set screw.

— Rotate screws clockwise to lower pressure

roller or counterclockwise to raise pressure roller.

9. Adjust rollers until they are 0.004" (0.1mm) lower than height of the drum.

10. Close drum door and secure with drum door lock knob.

If your machine is used frequently, we recommend keeping an extra set of these replacement brushes on-hand to avoid any downtime.

Tools Needed: Qty

Flat Head Screwdriver 1/4 ................................... 1

Pair of Motor Brushes (P0920171) ..................... 1

To replace motor brushes:

1. DISCONNECT MACHINE FROM POWER!

2. Remove brush caps and worn brushes (see Figure 68) from conveyor belt motor.

Model G0920 (Mfd. Since 09/23)

Brush

(1 of 2)

Brush

Caps

Figure 68. Location of motor cover cap screws.

3. Replace both motor brushes and install brush

caps.

-45-

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.

machine

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.

-46-

Model G0920 (Mfd. Since 09/23)

Wiring Diagram

AC1

Circuit Board

Ground

M+

M-

Hot

230

VAC

Hot

ON/OFF Switch

KEDU

KJD17B-16

GND

Potentiometer

B10K

Circuit Breaker

KUOYUH

68 SERIES 9A

LINE LOAD

Ground

6-15 Receptacle

Ground

CONVEYOR

FEED

MOTOR

230 VAC

6-15 Plug

Hot

SWITCH BOX

DRUM MOTOR

GND

Start Capacitor

400MFD 125VAC

Hot

230

VAC

Hot

6-15 Plug

Model G0920 (Mfd. Since 09/23)

Run Capacitor 40uF 250VAC

READ ELECTRICAL SAFETY

ON PAGE 46!

-47-

Electrical Component Photos

Figure 71. Start capacitor.Figure 69. Switch box.

-48-

Figure 70. Motor junction box.

READ ELECTRICAL SAFETY

ON PAGE 46!

Figure 72. Run capacitor.

Model G0920 (Mfd. Since 09/23)

SECTION 9: PARTS

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

Main

20-2

20-5

20-6

20-1

20-10

20-3

20-4

174

154

173

171

118

111

113

133

112

157

114

134

115

20-7

20-8

20-11

143

142

154

55 56

153

20-9

172

126

154

118

154

118

174

Model G0920 (Mfd. Since 09/23)

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-49-

REF PART # DES CRIPTI ON REF PART # DE S CRIP TI ON

Main Parts List

1 P0920001 SANDING BELT PLATEN 63 P0920063 HEX BOLT M10.1.5 X 40 2 P0920002 OUTFEED ROLLER 64 P0920064 CAP SCREW M6-1 X 15 3 P0920003 INFEED ROLLER 65 P0920065 PHLP HD SCR M6-1 X 90 4 P0920004 FIXED ROLLER BRACKET 66 P0920066 CARRIAGE BOLT M6-1 X 20 5 P0920005 BUSHI NG 67 P0920067 FLAT WA SHER 6 MM 6 P0920006 FEED MOTOR 1/3HP 230V 1-PH 68 P0920068 LOCK WASHER 6MM 7 P0920007 TENSION ADJUST BLOCK 69 P0920069 HEX NUT M6- 1 8 P0920008 TENSION ROLLER BRACKET 70 P0920070 CAP SCREW M8-1.25 X 30 9 P0920009 CONVEYOR BELT 71 P0920071 HEX NUT M8 -1. 25 10 P0920010 COMPRESSION SPRING 1.5 X 9.7 X 73 72 P0920072 FLAT HD SCR M5-. 8 X 20 11 P0920011 ARCH BODY 73 P0920073 CAP SCREW M5-.8 X 25 12 P0920012 FIXED HANDLE 1-1/8 X 4, 3/8-16 X 1/2 74 P0920074 LOCK NUT M6-1 13 P0920013 HANDWHEEL TYPE-19 7D X 11/16B-S X 3/6-16 78 P0920078 HEX BOLT M8-1.25 X 40 14 P0920014 DRUM LI FT BUSHI NG 82 P0920082 FLAT WA SHER 5 MM 15 P0920015 DRUM LEADSCREW 5/8-18 X 8-1/4, 10-3/4 84 P0920084 HEX BOLT M8-1.25 X 30 16 P0920016 TABLE GUIDE 85 P0920085 LOCK WASHER 5MM 17 P0920017 TABLE BRACKET (FRONT) 91 P0920091 PHLP HD SCR M3-.5 X 6 18 P0920018 TABLE BRACKET (REAR) 92 P0920092 PHLP HD SCR M5-.8 X 10 19 P0920019 GUIDE BAR 93 P0920093 DEPTH GAUGE FIXED BRACKET 20 P0920020 DRUM MOTOR 2HP 230V 1-PH 94 P0920094 DI G I TA L I NDI CATOR 20-1 P0920020-1 MOTOR FA N COVER 95 P0920095 SWI TCH BOX MOUNTI NG BRACKET 20-2 P0920020-2 MOTOR FA N 97 P0920097 LOCK NUT M8-1.25 20-3 P0920020-3 S CAPACITOR COVER 111 P0920111 MOTOR CORD 14G 3W 24" 6-15P 20-4 P0920020-4 S CAPACITOR 400M 125V 1-3/4 X 3-1/2 112 P0920112 HEX WRE NCH 6MM 20-5 P0920020-5 R CAPACITOR COVER 113 P0920113 HE X WRENCH 4 MM 20-6 P0920020-6 R CAPACITOR 40M 250V 1-3/8 X 2-3/8 114 P0920114 WRENCH 10 X 12MM OPEN-ENDS 20-7 P0920020-7 BALL BEARING 6203ZZ (FRONT) 115 P0920115 WRENCH 14 X 17MM OPEN-ENDS 20-8 P0920020-8 BALL BEARING 6202ZZ (REAR) 118 P0920118 FLAT WA SHER 8 MM 20-9 P0920020-9 MOTOR J UNCTI ON BO X 126 P0920126 MOTOR BRACKET 20-10 P0920020-10 CONTACT PLATE 24MM 133 P0920133 HEX WRENCH 5MM 20-11 P0920020-11 CENTRIFUGAL SWITCH 9/16" 1720 134 P0920134 WRENCH 12 X 14MM OPEN-ENDS 42 P0920042 FEED MOTOR MOUNTI NG PLATE 142 P0920142 DUST HOSE HOOK 46 P0920046 CAP SCREW M8-1.25 X 20 143 P0920143 PHLP HD SCR M6-1 X 16 47 P0920047 LOCK NUT M8-1.25 153 P0920153 CONVEYOR TABLE SHIM 54 P0920054 SET SCREW M6-1 X 6 154 P0920154 CAP SCREW M8-1.25 X 40 55 P0920055 FLAT WASHER 8MM 157 P0920157 HEX WRE NCH 8MM 56 P0920056 LOCK WASHER 8MM 171 P0920171 CARBON BRUSHES (PAIR) 59 P0920059 SET SCREW M8-1.25 X 8 172 P0920172 LOCK NUT M8-1.25 60 P0920060 KEY 5 X 5 X 30 RE 173 P0920173 BRUSH CA P 61 P0920061 HEX NUT 5/8-18 THIN 174 P0920174 PHLP HD SCR M5-.8 X 8 62 P0920062 FLAT WASHER 9.5 X 23 X 2MM

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Model G0920 (Mfd. Since 09/23)

240

Drum

230

359

316

337

252

236

279

228

229

225

253

230

222

359

247

358

247

243

247

251

257V2

234V2

233

236

247

221

271

253

246

255

349

247

347

245

239

246

227

348

205

234V2

283

226

230

274

279

281

235

285

224

244

223

230

282

316

278

235

248

282

237

238

291

232

346

234V2

241

316

345

238

347

205

233

346

237

282

285

249

257V2

231

258V2

360

258V2

Model G0920 (Mfd. Since 09/23)

231

232

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-51-

Drum Parts List

REF PART # DES CRIPTION REF PART # DE S CRIPTION

205 P0920205 BUSHING 248 P0920248 PHLP HD SCR M5-.8 X 20 221 P0920221 DRUM CASE 249 P0920249 HEX NUT M5-.8 222 P0920222 DRUM ROLLER 251 P0920251 FLAT HD SCR 10-24 X 3/8 223 P0920223 PULL CLAMP BRACKET 252 P0920252 HEX NUT M4-.7 224 P0920224 DRUM TORSION SPRING 253 P0920253 FLAT HD SCR M6-1 X 25 225 P0920225 FIXED CLAMP BRACKET 255 P0920255 FLAT WASHER 8MM 226 P0920226 PULL CLAMP 257V2 P0920257V2 PHLP HD SCR M5-.8 X 50 V2.09.23 227 P0920227 PULL CLAMP TORSION SPRING 258V2 P0920258V2 LOCK NUT M5-.8 V2.09.23 228 P0920228 FIXED CLAMP 271 P0920271 HEX NUT M8-1.25 229 P0920229 FIXED CLAMP TORSION SPRING 274 P0920274 LOCK NUT M6-1 230 P0920230 BEARING CAP 278 P0920278 DEPTH GAUGE ARCH BRACKET 231 P0920231 PRESSURE ROLLER BRACKET 279 P0920279 BALL BEARING 6205-2RS 232 P0920232 ROLLER MOUNT (RIGHT) 281 P0920281 PHLP HD SCR M5-.8 X 8 233 P0920233 ROLLER MOUNT (LEFT) 282 P0920282 FLAT WASHER 5MM 234V2 P0920234V2 COMP SPRING 1.4 X 8 X 40.25 V2.09.23 283 P0920283 KNOB BOLT M6-1 X 10 235 P0920235 PRESSURE ROLLER 285 P0920285 LOCK WASHER 5MM 236 P0920236 DRUM DOOR HINGE 291 P0920291 PHLP HD SCR M3-.5 X 6 237 P0920237 DRUM SHAFT JOINT COVER 316 P0920316 CARRIAGE BOLT M8-1.25 X 30 238 P0920238 JAW CLUTCH COUPLER 337 P0920337 DRUM LIFT ADJUSTMENT PLATE 239 P0920239 DRUM DOOR HANDLE 345 P0920345 FLAT WASHER 4.3 X 10 X 1MM 240 P0920240 DRUM DOOR 346 P0920346 SET SCREW 1/4-20 X 5/16 241 P0920241 JAW CLUTCH BLOCK 347 P0920347 SET SCREW 10-24 X 5/8 243 P0920243 SANDING ROLL 3" X 22' 100-GRIT 348 P0920348 CAP SCREW M6-1 X 50 244 P0920244 EXT RETAINING RING 28MM 349 P0920349 COMPRESSION SPRING 0.7 X 8 X 35 245 P0920245 KEX 5 X 5 X 20 RE 358 P0920358 SET SCREW M8-1.25 X 45 246 P0920246 CAP SCREW M8-1.25 X 20 359 P0920359 FLAT WASHER 8MM 247 P0920247 LOCK NUT M8-1.25 360 P0920360 KNOB M8-1.25, 7-LOBE, D60

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Model G0920 (Mfd. Since 09/23)

Cabinet

REF P ART # DES CRIPTIO N REF PART # DESCRIP TI ON

455

475

464

466

465

455

471

456

485

481

485

482

468

481

466

481

482

450

456

475

455

461

462

471

456

455

450

469

459

470

450 P0920450 HEX NUT 5/16-18 467 P0920467 CABINET DOOR 455 P0920455 FLAT WASHER 8MM 468 P0920468 BOTTOM PANEL 456 P0920456 LOCK WASHER 8MM 469 P0920469 RUBBER FOOT 459 P0920459 FLAT WASHER 5/16 470 P0920470 PHLP HD SCR 5/16-18 X 3/ 4 461 P0920461 RIGHT SIDE PANEL 471 P0920471 HEX NUT M8 -1. 25 462 P0920462 LEFT SIDE PANEL 475 P0920475 HEX BOLT M8-1.25 X 25 463 P0920463 FRONT PANEL 476 P0920476 CABI NET DOOR LA TCH HANDLE 464 P0920464 REAR PANEL 481 P0920481 PHLP HD SCR M5-.8 X 8 465 P0920465 UPPER PANEL 482 P0920482 FLAT WASHER 5MM

466 P0920466 PARTITION PANEL 485 P0920485 LOCK WASHER 5MM

456

469

459

470

476

467

463

Model G0920 (Mfd. Since 09/23)

BUY PARTS ONLINE AT GRIZZLY.COM !

Scan QR code to visit our Parts Store.

-53-

588

555

REF PART # DES CRIPTI ON REF PART # DESCRI PTION

563

571

Extension Tables

587

525

555

590

527

529

587

524

590

555

527

563

571

529

522

547

562

531

530

528

547

563

555

530

589

528

529

523

562

590

562

587

527

556

588

523

589

525

530

528

530

547

555

522

563

531

571

562

563

587

528

531

529

547

555

590

527

524

555

563

571

522 P0920522 TABLE BLOCK (RIGHT) 555 P0920555 FL AT WAS HER 8MM 523 P0920523 TABLE BLOCK (LEFT) 556 P0920556 SET SCREW M8-1.25 X 8 524 P0920524 TABLE FOLDING BRACKET (RIGHT) 562 P0920562 FLAT WASHER 10MM 525 P0920525 TABLE FOLDING BRACKET (LEFT) 563 P0920563 LOCK WASHER 8MM 527 P0920527 COMPRESSION SPRING 1 X 10 X 21 571 P0920571 HE X NUT M8- 1. 25 528 P0920528 FLAT HD SCR M8-1.25 X 25 587 P0920587 CARRIAGE BOLT M8-1.25 X 20 529 P0920529 SHOULDER SCREW M10-1.5 X 30, 10 X 35 588 P0920588 EXTENSION TABLE 530 P0920530 LOCK NUT M10-1.5 589 P0920589 TABLE MOUNTING BRACKET 531 P0920531 CAP SCREW M8-1.25 X 16 590 P0920590 SHOULDER SCREW M8-1.25 X 33, 8 X 22 547 P0920547 LOCK NUT M8-1.25

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Model G0920 (Mfd. Since 09/23)

Control Panel

632

REF P ART # DESCRIP TION REF P ART # DESCRI PTION

681

685

651

682

607

649

686

605

608

606

603

649

650

649

650

698

699

683

684

600

682

604

610

602

600 P0920600 STRAIN RELIEF TYPE-1 7/8" 649 P0920649 HEX NUT M4 -. 7 601 P0920601 ELECTRICAL OUTLET 15A 250V 650 P0920650 EXT TOOTH WA SHER 5 MM 602 P0920602 STRAIN RELIEF TYPE-1 5/8" 651 P0920651 CIRCUI T BOARD CORD 14G 1W 5" 603 P0920603 RESISTANCE PLATE 681 P0920681 PHLP HD SCR M5-.8 X 8 604 P0920604 CONVEYOR SPEED DIAL KNOB 682 P0920682 FLAT WA SHER 5MM 605 P0920605 INSULATION BOARD 683 P0920683 FLAT WASHER 4MM 606 P0920606 POTENTI OMETE R/ CI RCUI T BOA RD AMP- 326 B 684 P0920684 PHLP HD SCR M4-.7 X 20 607 P0920607 SWITCH BOX COVER 685 P0920685 LOCK WASHER 5MM 608 P0920608 FLAT HD SCR M5- . 8 X 10 686 P0920686 LOCK WASHER 4MM 609 P0920609 PHLP HD SCR M5-.8 X 20 698 P0920698 SWI TCH B OX 610 P0920610 POWER CORD 14G 3W 60" 6-15P 699 P0920699 ON/ OFF SWI TCH WKJ D- 17B 632 P0920632 CIRCUIT BREAKER KUOYOH 88 SERIES 9A

609

601

Model G0920 (Mfd. Since 09/23)

BUY PARTS ONLINE AT GRIZZLY.COM !

Scan QR code to visit our Parts Store.

-55-

G0920

710

KICKBACK HAZARD

Do not stand directly in front of this machine during operation, or insert multiple boards simulateously. Serious personal injury can occur if stock is ejected with significant force.

703

Labels & Cosmetics

PINCH HAZARD

Keep hands away from pinch points during operation. Severe injury could occur if hands get caught between feed belt and stock or between pressure roller and stock.

705

WARNING!

To reduce risk of death or serious injury, read manual BEFORE using machine. To get a new manual, call (800) 523-4777 or go to www.grizzly.com.

701

WARNING!

EYE/LUNG INJURY

HAZARD! Always wear safety glasses and a respirator when using this machine.

702

KEEP DOOR

CLOSED

WHILE

OPERATING!

INJURY/SHOCK

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

Main Motor: 2 HP, 230V, 1-Phase, 60 Hz Feed Motor: 50W, 230V, 1-Phase, 60 Hz Full-Load Current Rating: 8.5A Drum Speed: 2300 FPM Drum Diameter: 5" Feed Rate: 0–10 FPM Max Board Width: 21-1/4" Max Board Thickness: 5" Min Board Dim: 1/4" T x 9" L x 2" W Sandpaper Width: 3" Sandpaper Length: 127" Weight: 307 lbs.

Mfd. for Grizzly in Taiwan

WARNING!

ENTANGLEMENT

HAZARD! Keep loose clothing and long hair away from conveyor ends.

712

MAX. SANDING WIDTH

Specifications

Date

S/N

706

707

MODEL G0920

22" SINGLE DRUM SANDER

To reduce the risk of serious injury while using this machine:

1. Read and understand owner’s manual before operating.

2. Always wear approved eye protection and respirator.

3. Only plug power cord into a grounded outlet.

4. Never place hands near or in any opening during operation.

5. Never touch moving sandpaper or conveyor belt.

6. Never sand more than one board at a time.

7. Make sure sander is properly assembled, adjusted, and stable before operating. Only operate with top cover closed and secured.

8. Be aware of pinch points located at the edge of conveyor.

9. Only remove jammed pieces when machine is stopped and disconnected from power.

10. Turn motor OFF and disconnect power before changing

sandpaper, opening machine, or servicing.

11. Do not wear loose clothing, gloves, jewelry, or other articles that can get entangled. Tie back long hair and roll up sleeves.

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

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

14. Prevent unauthorized use by children or untrained users; restrict access or disable machine when unattended.

WARNING!

FPM

708

704

709

711

REF PART # DESCRI PTIO N REF PART # DES CRIPTIO N

701 P0920701 READ MANUAL/PPE LABEL 707 P0920707 MACHINE ID LABEL 702 P0920702 KEEP DOOR CLOSED LABEL 708 P0920708 GRIZZLY NAMEPLATE 703 P0920703 KICKBACK/PINCH HAZARD LABEL 709 P0920709 TOUCH-UP PAI NT, GRI ZZLY BEI GE 704 P0920704 ELECTRICITY LABEL 710 P0920710 MODEL NUMBER LABEL 705 P0920705 SHOCK/ENTANGLEMENT HAZARD LABEL 711 P0920711 TOUCH-UP PAINT, G RI ZZL Y GRE EN 706 P0920706 FPM LABEL 712 P0920712 MAX SANDING WIDTH LABEL

Safety labels help reduce the risk of serious injury caused by machine hazards. If any label comes off or becomes unreadable, the owner of this machine MUST replace it in the original location before resuming operations. For replacements, contact (800) 523-4777 or www.grizzly.com.

-56-

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Model G0920 (Mfd. Since 09/23)

WARRANTY & RETURNS

Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse, negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty and any and all warranties that may be implied by law, including any merchantability or fitness, for any particular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants. In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.

We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special, or consequential damages arising from the use of our products.

The manufacturers reserve the right to change specifications at any time because they constantly strive to achieve better quality equipment. We make every effort to ensure that our products meet high quality and durability standards and we hope you never need to use this warranty.

In the event you need to use this warranty, contact us by mail or phone and give us all the details. We will then issue you a “Return Number,’’ which must be clearly posted on the outside as well as the inside of the carton. We will not accept any item back without this number. Proof of purchase must accompany the merchandise.

Please feel free to write or call us if you have any questions about the machine or the manual.

Thank you again for your business and continued support. We hope to serve you again soon.

To you can applicable information for

take advantage of this warranty, you must register it at https://www.grizzly.com/forms/warranty, or

scan the QR code below to be automatically directed to our warranty registration page. Enter all

the product.

WARRANTY

Grizzly G0920 User guide

Specifications and Main Features

Frequently Asked Questions

User Manual

INTRODUCTION

Contact Info Manual Accuracy

Identification

Machine Data Sheet

SECTION 1: SAFETY

Safety Instructions for Machinery

Additional Safety for Drum Sanders

SECTION 2: POWER SUPPLY

SECTION 3: SETUP

Needed for Setup

Unpacking

Inventory

Hardware Recognition Chart

Site Considerations

Assembly

Anchoring to Floor

Dust Collection

Test Run

SECTION 4: OPERATIONS

Inspecting Stock Setting Depth of Cut

Sanding Tips

Choosing Sandpaper

SECTION 5: ACCESSORIES

SECTION 6: MAINTENANCE

Schedule

Cleaning Machine

Lubrication

SECTION 7: SERVICE

Troubleshooting

Making Blocks

Adjusting Gibs

Aligning Drum

Replacing Brushes

SECTION 8: WIRING

Wiring Safety Instructions

Wiring Diagram

Electrical Component Photos

SECTION 9: PARTS

Main

Drum

Cabinet

Extension Tables

Control Panel

Labels & Cosmetics

WARRANTY & RETURNS