Grizzly
Industrial, Inc.
MODEL G0453/G0454
15" & 20" MOBILE PLANERS
OWNER'S MANUAL

Model G0454 Shown
COPYRIGHT © MAY, 2005 BY GRIZZLY INDUSTRIAL, INC., REVISED NOVEMBER, 2012 (TS) WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC. (FOR MODELS MANUFACTURED SINCE 3/08) #TR7246 PRINTED IN CHINA

WARNING!
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.
WARNING!
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
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INTRODUCTION ........ 2
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Manual Accuracy ........ 2
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Contact Info ........ 2
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Machine Description ........ 2
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Identification ........ 3
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Internal Components ........ 4
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G0453 Machine Data Sheet ........ 5
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G0454 Machine Data Sheet ........ 7
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SECTION 1: SAFETY ........ 9
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Safety Instructions for Machinery ........ 9
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Additional Safety Instructions for Planers ........ 11
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SECTION 2: POWER SUPPLY ........ 12
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SECTION 3: SETUP ........ 14
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Needed for Setup ........ 14
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Unpacking ........ 14
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Inventory ........ 15
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Cleanup ........ 16
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Site Considerations ........ 17
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Lifting & Moving Base Unit ........ 18
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Assembly ........ 18
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Dust Collection ........ 21
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Check Gearbox Oil ........ 21
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Test Run ........ 21
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Re-Tension V-Belts ........ 22
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Recommended Adjustments ........ 22
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SECTION 4: OPERATIONS ........ 23
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Operation Overview ........ 23
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Planing Tips ........ 24
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Workpiece Inspection ........ 24
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Wood Hardness ........ 25
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Feed Rate ........ 25
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Depth of Cut ........ 26
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Bed Roller Height ........ 26
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SECTION 5: ACCESSORIES ........ 28
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SECTION 6: MAINTENANCE ........ 30
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Schedule ........ 30
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Cleaning & Protecting ........ 30
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Lubrication ........ 31
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SECTION 7: SERVICE ........ 33
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Troubleshooting ........ 33
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Setting/Replacing Knives ........ 36
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V-Belt Tensioning/Replacement ........ 37
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Table Height Chain Tension ........ 39
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Feed Rollers, Chip Breaker & Pressure Bar Heights ........ 40
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Roller Spring Tension ........ 43
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Positioning Chip Deflector ........ 43
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Scale Calibration ........ 44
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Anti-Kickback Fingers ........ 44
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Pulley Alignment ........ 45
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SECTION 8: WIRING ........ 46
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Wiring Safety Instructions ........ 46
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G0453 Wiring Diagram ........ 47
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G0454 Wiring Diagram ........ 48
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SECTION 9: PARTS ........ 49
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G0453 Headstock ........ 49
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G0453 Table ........ 51
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G0453 Columns ........ 52
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G0453 Cabinet Stand ........ 53
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G0453 Gearbox ........ 55
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G0453 Label Placement ........ 56
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G0454 Headstock ........ 57
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G0454 Table ........ 60
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G0454 Columns ........ 61
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G0454 Cabinet Stand ........ 62
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G0454 Gearbox ........ 64
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G0454 Label Placement ........ 65
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WARRANTY AND RETURNS ........ 69
INTRODUCTION
Manual Accuracy
We are proud to provide a high-quality owner’s manual with your new machine!
We made every effort to be exact with the instructions, specifications, drawings, and photographs in this manual. Sometimes we make mistakes, but our policy of continuous improvement also means that sometimes the machine you receive is slightly different than shown in the manual.
If you find this to be the case, and the difference between the manual and machine leaves you confused or unsure about something, check our website for an updated version. We post current manuals and manual updates for free on our website at www.grizzly.com.
Alternatively, you can call our Technical Support for help. Before calling, make sure you write down the Manufacture Date and Serial Number from the machine ID label (see below). This information is required for us to provide proper tech support, and it helps us determine if updated documentation is available for your machine.

Contact Info
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 and manufacture date from the machine ID label. This will help us help you faster.
Grizzly Technical Support 1815 W. Battlefield Springfield, MO 65807 Phone: (570) 546-9663 Email: techsupport@grizzly.com
We want your feedback on this manual. What did you like about it? Where could it be improved? Please take a few minutes to give us feedback.
Grizzly Documentation Manager P.O. Box 2069 Bellingham, WA 98227-2069 Email: manuals@grizzly.com
Machine Description
The Model G0453/G0454 Planer is designed to remove material in precise increments from the surface of natural wood fiber stock to make the workpiece flat.
Once the depth of cut is set, the workpiece is placed on the table and moved into the infeed roller, which pulls the workpiece under the rotating cutterhead where the material is removed. After the workpiece is completely free from the outfeed roller, the depth of cut is increased and the workpiece is passed through the planer again. This process continues until the workpiece is flat and of the correct thickness.
Identification

Figure 1. General identification.
Internal Components

Figure 2. Workpiece path and major planing components (side cutaway view).
A. Anti-Kickback Fingers: Provide additional safety for the operator. B. Serrated Infeed Roller: Pulls the workpiece toward the cutterhead. C. Chip Breaker: Breaks off chips created by the cutterhead to prevent tear out and diverts the chips to the dust port. D. Chip Deflector: Directs chips into the dust hood. E. Cutterhead: Holds the knives that remove material from the workpiece. F. Pressure Bar: Stabilizes the workpiece as it leaves the cutterhead and assists in deflecting wood particles toward the dust hood (G0454 only). G. Outfeed Rollers: Pulls the workpiece through the planer. H. Table Rollers: Provide upward pressure on the workpiece enabling the feed rollers to pull the workpiece along. I. Planer Table: Provides a smooth and level path for the workpiece as it moves through the planer.
WARNING
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.
-4- G0453/G0454 (Mfg. Since 3/08)
Grizzly
Industrial, Inc.
MACHINE DATA SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL G0453 15" PLANER
Product Dimensions:
- Weight ........ 655 lbs.
- Width (side-to-side) x Depth (front-to-back) x Height ........ 32-1/2 x 42 x 45-7/8 in.
- Footprint (Length x Width) ........ 22-1/2 x 22 in.
Shipping Dimensions:
- Type ........ Wood Crate
- Content ........ Machine
- Weight ........ 675 lbs.
- Length x Width x Height ........ 30 x 31 x 47 in.
- Must Ship Upright ........ Yes
Electrical:
- Power Requirement ........ 240V, Single-Phase, 60 Hz
- Prewired Voltage ........ 240V
- Full-Load Current Rating ........ 15A
- Minimum Circuit Size ........ 20A
- Connection Type ........ Cord & Plug
- Power Cord Included ........ Yes
- Power Cord Length ........ 5 ft.
- Power Cord Gauge ........ 12 AWG
- Plug Included ........ No
- Recommended Plug Type ........ 6-20
- Switch Type ........ Magnetic Switch w/Overload Protection
Motors: Main
- Horsepower ........ 3 HP
- Phase ........ Single-Phase
- Amps ........ 15A
- Speed ........ 3450 RPM
- Type ........ TEFC Capacitor-Start Induction
- Power Transfer ........ Triple V-Belt Drive
- Bearings ........ Sealed & Permanently Lubricated
- Centrifugal Switch/Contacts Type ........ External
Main Specifications: Main Specifications
- Planer Size ........ 15 in.
- Max. Cut Width ........ 15 in.
- Min. Stock Length ........ 8 in.
- Min. Stock Thickness ........ 3/16 in.
- Max. Stock Thickness ........ 8 in.
- Number of Cuts Per Inch ........ 63, 42
- Number of Cuts Per Minute ........ 15,000
- Cutterhead Speed ........ 4800 RPM
- Planing Feed Rate ........ 16, 30 FPM
- Max. Cut Depth Planing Full Width ........ 3/32 in.
- Max. Cut Depth Planing 6-Inch Wide Board ........ 1/8 in.

Cutterhead Info
- Cutterhead Type ........ 3 Knife
- Cutterhead Diameter ........ 3 in.
- Number of Knives ........ 3
- Knife Type ........ HSS, Single-Sided, Solid
- Knife Size Length ........ 15 in.
- Knife Size Width ........ 1 in.
- Knife Size Thickness ........ 1/8 in.
- Knife Adjustment ........ Jack Screws
Table Info
- Table/Headstock Movement ........ 8 in.
- Table Bed Size Length ........ 20 in.
- Table Bed Size Width ........ 15 in.
- Table Bed Size Thickness ........ 1-3/4 in.
- Number of Bed Rollers ........ 2
- Floor-to-Table Height ........ 27 – 35 in.
- Roller Ext. Table Size Length ........ 42 in.
- Roller Ext. Table Size Width ........ 15 in.
- Roller Ext. Table Size Thickness ........ 1-3/4 in.
Construction
- Table ........ Precision-Ground Cast Iron
- Body ........ Cast Iron
- Stand ........ Steel
- Cutterhead Assembly ........ Steel
- Infeed Roller ........ Serrated Steel
- Outfeed Roller ........ Rubber-Coated
- Paint Type/Finish ........ Powder-Coated
Other
- Table/Headstock Locks ........ Yes
- Measurement Scale ........ Inch & Metric
- Number of Dust Ports ........ 1
- Dust Port Size ........ 4 in.
- Mobile Base ........ Built-In
Other Specifications:
- Country of Origin ........ China
- Warranty ........ 1 Year
- Approximate Assembly & Setup Time ........ 30 Minutes
- Serial Number Location ........ ID Label on Upper Cover
- ISO 9001 Factory ........ No
- Certified by a Nationally Recognized Testing Laboratory (NRTL) ........ Yes
-6- G0453/G0454 (Mfg. Since 3/08)
Grizzly
Industrial, Inc.
MACHINE DATA SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL G0454 20" PLANER
Product Dimensions:
- Weight ........ 771 lbs.
- Width (side-to-side) x Depth (front-to-back) x Height ........ 39-1/2 x 55-1/2 x 45-7/8 in.
- Footprint (Length x Width) ........ 29-1/2 x 23-1/2 in.
Shipping Dimensions:
- Type ........ Wood Crate
- Content ........ Machine
- Weight ........ 920 lbs.
- Length x Width x Height ........ 30 x 39 x 49 in.
- Must Ship Upright ........ Yes
Electrical:
- Power Requirement ........ 240V, Single-Phase, 60 Hz
- Prewired Voltage ........ 240V
- Full-Load Current Rating ........ 19A
- Minimum Circuit Size ........ 30A
- Connection Type ........ Cord & Plug
- Power Cord Included ........ Yes
- Power Cord Length ........ 6-1/2 ft.
- Power Cord Gauge ........ 12 AWG
- Plug Included ........ Yes
- Included Plug Type ........ L6-30
- Switch Type ........ Magnetic Switch w/Overload Protection
Motors: Main
- Horsepower ........ 5 HP
- Phase ........ Single-Phase
- Amps ........ 19A
- Speed ........ 3450 RPM
- Type ........ TEFC Capacitor-Start Induction
- Power Transfer ........ Triple V-Belt Drive
- Bearings ........ Sealed & Permanently Lubricated
- Centrifugal Switch/Contacts Type ........ External
Main Specifications: Main Specifications
- Planer Size ........ 20 in.
- Max. Cut Width ........ 20 in.
- Min. Stock Length ........ 8 in.
- Min. Stock Thickness ........ 3/16 in.
- Max. Stock Thickness ........ 8 in.
- Number of Cuts Per Inch ........ 104, 83
- Number of Cuts Per Minute ........ 20,000
- Cutterhead Speed ........ 4800 RPM
- Planing Feed Rate ........ 16, 20 FPM
- Max. Cut Depth Planing Full Width ........ 1/8 in.
- Max. Cut Depth Planing 6-Inch Wide Board ........ 1/8 in.

Cutterhead Info
- Cutterhead Type ........ 4 Knife
- Cutterhead Diameter ........ 3-1/8 in.
- Number of Knives ........ 4
- Knife Type ........ HSS, Single-Sided, Solid
- Knife Size Length ........ 20 in.
- Knife Size Width ........ 1 in.
- Knife Size Thickness ........ 1/8 in.
- Knife Adjustment ........ Springs or Jack Screws
Table Info
- Table/Headstock Movement ........ 8 in.
- Table Bed Size Length ........ 25-3/4 in.
- Table Bed Size Width ........ 20 in.
- Table Bed Size Thickness ........ 1-3/4 in.
- Number of Bed Rollers ........ 2
- Floor-to-Table Height ........ 26-1/2 – 34-1/2 in.
- Roller Ext. Table Size Length ........ 55-1/2 in.
- Roller Ext. Table Size Width ........ 20 in.
- Roller Ext. Table Size Thickness ........ 1-3/4 in.
Construction
- Table ........ Precision-Ground Cast Iron
- Body ........ Cast Iron
- Stand ........ Steel
- Cutterhead Assembly ........ Steel
- Infeed Roller ........ Serrated Steel
- Outfeed Roller ........ Rubber-Coated
- Paint Type/Finish ........ Powder-Coated
Other
- Table/Headstock Locks ........ Yes
- Measurement Scale ........ Inch & Metric
- Number of Dust Ports ........ 1
- Dust Port Size ........ 5 in.
- Mobile Base ........ Built-In
Other Specifications:
- Country of Origin ........ China
- Warranty ........ 1 Year
- Approximate Assembly & Setup Time ........ 30 Minutes
- Serial Number Location ........ ID Label on Upper Cover
- Sound Rating ........ 80 dB
- ISO 9001 Factory ........ No
- Certified by a Nationally Recognized Testing Laboratory (NRTL) ........ Yes
-8- G0453/G0454 (Mfg. Since 3/08)
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.
DANGER Indicates an imminently hazardous situation which, if not avoided, WILL result in death or serious injury.
WARNING Indicates a potentially hazardous situation which, if not avoided, COULD result in death or serious injury.
CAUTION 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.
NOTICE Alerts the user to useful information about proper operation of the machine to avoid machine damage.
Safety Instructions for Machinery
WARNING
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. Always disconnect 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.

⚠WARNING
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.

⚠WARNING
Additional Safety Instructions for Planers
OWNER'S MANUAL. This machine presents significant safety hazards to untrained users. Read and understand this entire manual before starting the planer.
KICKBACK. Be familiar with kickback. Kickback happens when the workpiece is thrown towards the operator at a high rate of speed. Until you have a clear understanding of kickback and how it occurs, DO NOT operate this planer!
REACHING INSIDE PLANER. To avoid serious personal injury from spinning knives, never remove guards or reach inside the planer while it is connected to power.
DULL/DAMAGED KNIVES. Only use sharp, undamaged knives. Kickback may occur and the cutting results will be poor if the planer is operated with dull or damaged knives.
BODY PLACEMENT. To avoid getting hit if a kickback occurs, always stand to one side of the planer during the entire operation.
PLANING CORRECT MATERIAL. Only plane natural wood stock with this planer. DO NOT plane MDF, plywood, laminates or other synthetic materials that can break up inside the planer and cause injury hazards.
GRAIN DIRECTION. Planing across the grain is hard on the planer and may cause kickback. Always plane in the same direction or at a slight angle with the wood grain.
LOOKING INSIDE PLANER. Wood chips fly around inside the planer at a high rate of speed during operation. To avoid injury from flying material, DO NOT look inside the planer during operation.
CUTTING LIMITATIONS. To reduce the risk of kickback hazards or damage to the machine, always operate within the published capacities found in the Data Sheet (beginning on Page 5) for this planer.
CLEAN STOCK. Planing stock with nails, staples, or loose knots may cause debris to be thrown at the operator at a high rate of speed and will damage the cutterhead knives. To avoid these hazards, always thoroughly inspect and prepare the workpieces.
CLEARING JAMS. To avoid serious personal injury from the spinning cutterhead, always stop the planer and disconnect it from power before removing jammed workpieces.
INFEED ROLLER CLEARANCE. The infeed roller is designed to pull material into the spinning cutterhead. To avoid serious personal injury, always keep hands, clothing, jewelry, and long hair away from the infeed roller during operation.
DISCONNECT BEFORE ADJUSTMENTS. To avoid unexpected start-up and serious personal injury, always disconnect the planer from power before performing adjustments, maintenance, or service.
⚠CAUTION
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.
SECTION 2: POWER SUPPLY
Availability
Before installing the machine, consider the availability and proximity of the required power supply circuit. If an existing circuit does not meet the requirements for this machine, a new circuit must be installed. To minimize the risk of electrocution, fire, or equipment damage, installation work and electrical wiring must be done by an electrician or qualified service personnel in accordance with all applicable codes and standards.

Full-Load Current Rating
The full-load current rating is the amperage a machine draws at 100% of the rated output power. On machines with multiple motors, this is the amperage drawn by the largest motor or sum of all motors and electrical devices that might operate at one time during normal operations.
- G0453 Full-Load Current Rating at 220V ........ 15 Amps
- G0454 Full-Load Current Rating at 220V ........ 25 Amps
The full-load current is not the maximum amount of amps that the machine will draw. If the machine is overloaded, it will draw additional amps beyond the full-load rating.
If the machine is overloaded for a sufficient length of time, damage, overheating, or fire may result—especially if connected to an undersized circuit. To reduce the risk of these hazards, avoid overloading the machine during operation and make sure it is connected to a power supply circuit that meets the specified circuit requirements.
G0453 220V Circuit Requirements
This machine is prewired to operate on a power supply circuit that has a verified ground and meets the following requirements:
- Nominal Voltage ........ 220V/240V
- Cycle ........ 60 Hz
- Phase ........ 1-Phase
- Circuit Rating ........ 20 Amps
- Plug/Receptacle ........ NEMA 6-20
- Cord ........ 3-Wire, 12 AWG, 300VAC, “S”-Type
G0454 220V Circuit Requirements
This machine is prewired to operate on a power supply circuit that has a verified ground and meets the following requirements:
- Nominal Voltage ........ 220V/240V
- Cycle ........ 60 Hz
- Phase ........ 1-Phase
- Circuit Rating ........ 30 Amps
- Plug/Receptacle ........ NEMA L6-30
- Cord ........ 3-Wire, 12 AWG, 300VAC, “S”-Type
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.)

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.
-12-
G0453/G0454 (Mfg. Since 3/08)
Grounding Instructions
This machine MUST be grounded. In the event of certain malfunctions or breakdowns, grounding reduces the risk of electric shock by providing a path of least resistance for electric current.
The plug specified under "Circuit Requirements" on the previous page has a grounding prong that must be attached to the equipment-grounding wire on the included power cord. The plug must only be inserted into a matching receptacle (see the following figures) that is properly installed and grounded in accordance with all local codes and ordinances.
G0453
GROUNDING PIN
CURRENT CARRYING PRONGS
6-20 PLUG
GROUND 6-20 RECEPTACLE
Figure 3. Typical 6-20 plug and receptacle.
G0454
GROUNDING PRONG IS HOOKED
CURRENT CARRYING PRONGS
L6-30 LOCKING PLUG
L6-30 GROUND LOCKING RECEPTACLE
Figure 4. Typical L6-30 plug and receptacle.
NOTICE
No adapter is available or should be used with this machine. If the machine must be reconnected for use on a different type of electric circuit, the reconnection should be made by qualified service personnel; and after reconnection, the machine must comply with all local codes and ordinances.
WARNING
Serious injury could occur if you connect machine to power before completing setup process. DO NOT connect to power until instructed later in this manual.
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.
Extension Cords
We do not recommend using an extension cord with this machine. If you must use an extension cord, only use it if absolutely necessary and only on a temporary basis.
Extension cords cause voltage drop, which can damage electrical components and shorten motor life. Voltage drop increases as the extension cord size gets longer and the gauge size gets smaller (higher gauge numbers indicate smaller sizes).
Any extension cord used with this machine must be in good condition and contain a ground wire and matching plug/receptacle. Additionally, it must meet the following size requirements:
- G0453 Minimum Gauge Size ........ 12 AWG
- G0454 Minimum Gauge Size ........ 10 AWG
- Maximum Length (Shorter is Better) ........ 50 ft.
