Grizzly T28780, T28781 Owner's Manual

MODEL T28780/T28781

ROUTER TABLE w/LIFT

OWNER'S MANUAL

(For models manufactured since 6/19)

T28780

T28781

COPYRIGHT © JULY, 2019 BY GRIZZLY INDUSTRIAL, INC.

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

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

#MN20484 PRINTED IN TAIWA N

V1.07.19

This manual provides critical safety instructions on the proper setup,
operation, maintenance, and service of this machine/tool. Save this
document, refer to it often, and use it to instruct other operators.

Failure to read, understand and follow the instructions in this manual
may result in fire or serious personal injury—including amputation,
electrocution, or death.

The owner of this machine/tool is solely responsible for its safe use.
This responsibility includes but is not limited to proper installation in
a safe environment, personnel training and usage authorization,
proper inspection and maintenance, manual availability and compre­hension, application of safety devices, cutting/sanding/grinding tool
integrity, and the usage of personal protective equipment.

The manufacturer will not be held liable for injury or property damage
from negligence, improper training, machine modifications or misuse.

Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to the State
of California to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:

• Lead from lead-based paints.

• Crystalline silica from bricks, cement and other masonry products.

• Arsenic and chromium from chemically-treated lumber.

Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
Work in a well ventilated area, and work with approved safety equip­ment, such as those dust masks that are specially designed to filter
out microscopic particles.

Table of Contents

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

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

Manual Accuracy
Identification
Controls & Components
T28780 Machine Data Sheet
T28781 Machine Data Sheet

SECTION 1: SAFETY

Safety Instructions for Machinery
Additional Safety for Router Tables

SECTION 2: POWER SUPPLY

SECTION 3: SETUP

Unpacking
Needed for Setup
Inventory
Hardware Recognition Chart
Cleanup
Site Considerations
Assembly
Installing Router
Leveling Router Table
Connecting Power Cords
Dust Collection
Test Run

.................................................... 14

...................................................... 15

........................................................ 18

..................................................... 20

...................................................... 27

........................................... 2

................................................... 3

................................. 4

......................... 5

......................... 7

....................................... 9

.................. 9

............. 11

...................... 12

....................................... 14

......................................... 14

....................... 17

...................................... 19

........................................... 24

.................................. 26

............................. 26

............................................. 27

SECTION 5: ACCESSORIES

SECTION 6: MAINTENANCE

Schedule
Cleaning & Protecting

SECTION 7: SERVICE

Troubleshooting
Aligning Mounting Plate

SECTION 8: WIRING

Wiring Safety Instructions
Wiring Diagram

SECTION 9: PARTS

Table & Stand
Router Lift
Fence
Labels & Cosmetics

WARRANTY & RETURNS

...................................................... 39

.................................. 39

................................... 40

........................................... 40

............................... 41

...................................... 42

............................ 42

............................................ 43

....................................... 44

.............................................. 44

.................................................... 46

........................................................... 47

..................................... 48

............................. 49

......................... 38

......................... 39

SECTION 4: OPERATIONS

Operation Overview

Disabling Switch........................................... 30

Stock Inspection Requirements

Table T-Slots................................................ 31

Squaring Fence & Table
Adjusting Fence
Adjusting Router Bit Guard
Adjusting Router Height
Using Table Insert
Edge Jointing
Profile Routing
Routing Small Stock
Free-Hand Routing

........................................... 32

........................................ 33

............................................... 34

............................................. 35

...................................... 36

........................... 29

..................................... 29

................... 30

.............................. 31

.......................... 32

............................... 33

.................................... 35

We stand behind our machines! If you have ques­tions or need help, contact us with the information
below. Before contacting, make sure you get the

serial number

from the

machine ID label. This will help us help you faster.

We want your feedback on this manual. What did
you like about it? Where could it be improved?
Please take a few minutes to give us feedback.

Email: [e-mail]

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

We

instruc­tions, specifications, drawings, and photographs
in this manual. Sometimes we make mistakes, but
our policy of continuous improvement also means
that

you receive is

slightly different than shown in the manual

If you find this to be the case, and the difference
between the manual and machine leaves you
confused or unsure about something

check our

website for an updated version. W

current

manuals and

on our web-

site at

Alternatively, you can call our Technical Support
for help. Before calling, make sure you write down
the

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 documenta-

INTRODUCTION

Contact Info

and manufacture date

Grizzly Technical Support

1815 W. Battlefield
Springfield, MO 65807
Phone: [phone]

Email: [e-mail]

Grizzly Documentation Manager

P.O. Box 2069

Bellingham, WA 98227-2069

Manual Accuracy

made every effort to be exact with the

sometimes the machine

.

,

e post

manual updates for free

www.grizzly.com.

Manufacture Date and Serial Number

-2-

Model T28780 T28781 (Mfd. Since 06/19)

Identification

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

A DB C F

E

T28781 Shown

G H

I

J

K

L

MNO

A. T-Slots 3⁄8", 3⁄4" (T28780)
T-Slot 3⁄4" (T28781)

Table

B.
C. Outfeed Fence
D. Router Bit Guard
E. Fence Lock (1 of 2)
F. Infeed Fence
G. Fence Base

H. Dust Shroud 21⁄2 "

Dust Port 4"

I.
J. Router Lift with Crank Handle
K. Mounting Plate Insert
L. Mounting Plate
M. ON/OFF Paddle Switch
N. Dust Box
O. Adjustable Foot (1 of 4)

For Your Own Safety Read Instruction Manual Before Operating Router Table

a) Wear eye protection.
b) Always keep router bit guard in place and in proper operating condition.

) Feed workpiece AGAINST rotation of router bit.

c

) Keep fingers away from revolving bit–use fixtures when necessary.

d

) Do not use awkward hand positions.

e

Model T28780 T28781 (Mfd. Since 06/19)

-3-

Controls &

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

Components

using machine.

Refer to the following figures and descriptions to
become familiar with the basic controls and com­ponents of this machine. Understanding these
items and how they work will help you understand
the rest of the manual and minimize your risk of
injury when operating this machine.

A

B C

F

G

Figure 2. Router table controls (rear).

F. Fence Locks. Tighten and loosen infeed/

outfeed fences for side-to-side adjustment.

G. Dust Port. 4" dust port connects to user's

dust-collection system.

D

E

Figure 1. Router table controls (front).

A. T-Slot. Provides secure attachment point

for router table accessories, such as miter
gauge, jigs, featherboards, etc.

B. Fence. Provides workpiece support during

router operations. T-slots allow attachment of
hold-downs, featherboards, etc.

C. Router Bit Guard. Provides workpiece vis-

ibility while shielding user during operations.

D. Fence Locks. Tighten and loosen fence

assembly for front-to-rear adjustment.

H

K

Figure 3. Mounting plate components.

H. Mounting Plate. Attaches router to table.

I. Table Insert. Provides additional workpiece

control and safety near bit during operations.

J. Carriage Lock. Secures carriage position to

prevent movement during operations.

K. Index Ring. Insert crank handle and rotate to

move carriage up and down.

I

J

E. ON/OFF Switch. Turns router ON and OFF.

Remove key to disable switch.

-4-

Model T28780 T28781 (Mfd. Since 06/19)

T28780 Machine Data Sheet

Customer Service #: [phone] · To Order Call: [phone] · Fax #: [phone]

MODEL T28780

ROUTER TABLE WITH LIFT

Product Dimensions:

Weight ........................................................................................................................................................................... 126 lbs.

Width (side-to-side) x Depth (front-to-back) x Height .................................................................................44 x 32 x 44-1/2 in.

Footprint (Length/Width) ............................................................................................................................................27 x 19 in.

Shipping Dimensions:

Box 1

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

Content ...............................................................................................................................................................................Table

Weight .............................................................................................................................................................................. 98 lbs.

Length x Width x Height .......................................................................................................................................36 x 28 x 5 in.

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

Box 2

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

Content ....................................................................................................................................................Router Lift & Dust Box

Weight .............................................................................................................................................................................. 24 lbs.

Length x Width x Height .....................................................................................................................................17 x 16 x 15 in.

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

Box 3

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

Content ................................................................................................................................................................Fence & Stand

Weight .............................................................................................................................................................................. 47 lbs.

Length x Width x Height .......................................................................................................................................34 x 11 x 6 in.

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

Electrical:

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

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

Power Cord Length ...............................................................................................................................................................6 ft.

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

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

Included Plug Type .................................................................................................................................................. NEMA 5-15

Switch Type ............................................................................................................ON/OFF Paddle Switch w/Removable Key

Model T28780 T28781 (Mfd. Since 06/19)

-5-

Main Specifications:

Suitable Routers for Mounting ................................................................................................ 3.25" - 4.2" Non-Plunge Routers

Floor to Table Height ................................................................................................................................................. 36 - 39 in.

Table Size ...................................................................................................................................................... 32 x 24

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

Table T-Slot Size .......................................................................................................................................................3/4, 3/8 in.

Plate Size ................................................................................................................................................ 9-1/4 x 11-3/4

Plate Opening Size ........................................................................................................................................................ 3-3/4

Plate Insert Size ............................................................................................................................................................. 3-3/4

Plate Insert Opening Size .............................................................................................................................................. 1-1/4

Router Lift Travel ...........................................................................................................................................................2-3/4

Router Lift Index Ring Increment .................................................................................................................0.05 in. per full turn

Fence Length ........................................................................................................................................................32-1/2 - 44

Fence Width x Height ..........................................................................................................................................3/4 x 2-3/4

Fence Board Size .................................................................................................................................. 16-1/4 x 2-3/4 x 3/4 in.

Fence T-Slot Size .............................................................................................................................................................3/4 in.

Dust Port Type ............................................................................................................................................................. Y-Fitting

Dust Port Sizes ...................................................................................................................................................................4 in.

Dust Shroud Size ..........................................................................................................................................................2-1/2 in.

Construction:

Table ............................................................................................................................................................................ Cast Iron

Stand & Dust Box ...............................................................................................................................................................Steel

Stand & Dust Box Paint/Finish Type ..............................................................................................................................Enamel

Fence ..........................................................................................................................................................Anodized Aluminum

Router Lift ........................................................................................................................................................ Aluminum, Steel

Plate ............................................................................................................................................................Anodized Aluminum

Plate Insert ..........................................................................................................................................................Polycarbonate

Router Guard & Dust Shroud .....................................................................................................................Clear Polycarbonate

x 1-1/2 in.

x 3/8 in.

in.
in.
in.
in.

in.
in.

Other Specifications:

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

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

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

ISO 9000 Factory ..................................................................................................................................................................Yes

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

Features:

Precision-Machined Router Lift
Index Ring for Fine Lift Adjustment of Router
Precision-Ground Cast-Iron Table
Clear Polycarbonate Router Guard & Dust Shroud
Fence Assembly with Individually Adjustable Fences
Enclosed Dust Box
Adjustable Feet

Accessories:

Table Insert w/1-1/4" Diameter Bit Hole
Table Insert Wrench
Starting Pin
Hex Wrench 3mm

-6-

Model T28780 T28781 (Mfd. Since 06/19)

T28781 Machine Data Sheet

Customer Service #: [phone] · To Order Call: [phone] · Fax #: [phone]

MODEL T28781

ROUTER TABLE WITH LIFT AND CAST-IRON WINGS

Product Dimensions:

Weight ........................................................................................................................................................................... 171 lbs.

Width (side-to-side) x Depth (front-to-back) x Height .................................................................................56 x 32 x 44-1/2 in.

Footprint (Length/Width) ............................................................................................................................................27 x 19 in.

Shipping Dimensions:

Box 1

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

Content ...............................................................................................................................................................................Table

Weight ............................................................................................................................................................................ 100 lbs.

Length x Width x Height .......................................................................................................................................36 x 28 x 5 in.

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

Box 2

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

Content ....................................................................................................................................................Router Lift & Dust Box

Weight .............................................................................................................................................................................. 24 lbs.

Length x Width x Height .....................................................................................................................................17 x 16 x 15 in.

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

Box 3

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

Content ................................................................................................................................................................Fence & Stand

Weight .............................................................................................................................................................................. 47 lbs.

Length x Width x Height .......................................................................................................................................34 x 11 x 6 in.

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

Box 4

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

Content .............................................................................................................................................................Extension Wings

Weight .............................................................................................................................................................................. 58 lbs.

Length x Width x Height .......................................................................................................................................27 x 15 x 6 in.

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

Electrical:

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

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

Power Cord Length ...............................................................................................................................................................6 ft.

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

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

Included Plug Type .................................................................................................................................................. NEMA 5-15

Switch Type ............................................................................................................ON/OFF Paddle Switch w/Removable Key

Model T28780 T28781 (Mfd. Since 06/19)

-7-

Main Specifications:

16-1/4 x 2-3/4 x 3/4 in.

Suitable Routers for Mounting ................................................................................................ 3.25" - 4.2" Non-Plunge Routers

Floor to Table Height ................................................................................................................................................. 36 - 39 in.

Table Size ...................................................................................................................................................... 56 x 24

Number of Table T-Slots ...........................................................................................................................................................1

Table T-Slot Size ..............................................................................................................................................................3/4 in.

Plate Size ................................................................................................................................................ 9-1/4 x 11-3/4

Plate Opening Size ........................................................................................................................................................ 3-3/4

Plate Insert Size ............................................................................................................................................................. 3-3/4

Plate Insert Opening Size .............................................................................................................................................. 1-1/4

Router Lift Travel ...........................................................................................................................................................2-3/4

Router Lift Index Ring Increment .................................................................................................................0.05 in. per full turn

Fence Length ........................................................................................................................................................32-1/2 - 44

Fence Width x Height ..........................................................................................................................................3/4 x 2-3/4

Fence T-Slot Size .............................................................................................................................................................3/4 in.

Fence Board Size ..................................................................................................................................

Dust Port Type ............................................................................................................................................................. Y-Fitting

Dust Port Sizes ...................................................................................................................................................................4 in.

Dust Shroud Size ..........................................................................................................................................................2-1/2 in.

Construction:

Table ............................................................................................................................................................................ Cast Iron

Table Wings ................................................................................................................................................................. Cast Iron

Stand & Dust Box ...............................................................................................................................................................Steel

Stand & Dust Box Paint/Finish Type ..............................................................................................................................Enamel

Fence ..........................................................................................................................................................Anodized Aluminum

Router Lift ........................................................................................................................................ Anodized Aluminum, Steel

Plate ............................................................................................................................................................Anodized Aluminum

Plate Insert ..........................................................................................................................................................Polycarbonate

Router Guard & Dust Shroud .....................................................................................................................Clear Polycarbonate

x 1-1/2 in.

x 3/8 in.

in.
in.
in.
in.

in.
in.

Other Specifications:

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

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

Approximate Assembly & Setup Time ...................................................................................................................... 1.25 Hours

ISO 9000 Factory ..................................................................................................................................................................Yes

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

Features:

Precision-Machined Router Lift
Index Ring for Fine Lift Adjustment of Router
Precision-Ground Cast-Iron Table & Wings
Clear Polycarbonate Router Guard & Dust Shroud
Fence Assembly with Individually Adjustable Fences
Enclosed Dust Box
Adjustable Feet

Accessories:

Table Insert w/1-1/4" Diameter Bit Hole
Table Insert Wrench
Starting Pin
Hex Wrench 3mm

-8-

Model T28780 T28781 (Mfd. Since 06/19)

SECTION 1: SAFETY

For Your Own Safety, Read Instruction

Manual Before Operating This Machine

The purpose of safety symbols is to attract your attention to possible hazardous conditions.

This manual uses a series of symbols and signal words intended to convey the level of impor­tance of the safety messages. The progression of symbols is described below. Remember that
safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures. Always use common sense and good judgment.

Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.

Alerts the user to useful information about proper operation of the

NOTICE

machine to avoid machine damage.

Safety Instructions for Machinery

OWNER’S MANUAL. Read and understand this

owner’s manual BEFORE using machine.

TRAINED OPERATORS ONLY. Untrained oper­ators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine. When machine is not being used, dis­connect power, remove switch keys, or lock-out
machine to prevent unauthorized use—especially
around children. Make your workshop kid proof!

DANGEROUS ENVIRONMENTS. Do not use
machinery in areas that are wet, cluttered, or have
poor lighting. Operating machinery in these areas
greatly increases the risk of accidents and injury.

MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of machin­ery. Never operate under the influence of drugs or
alcohol, when tired, or when distracted.

ELECTRICAL EQUIPMENT INJURY RISKS.
You can be shocked, burned, or killed by touching
live electrical components or improperly grounded
machinery. To reduce this risk, only allow qualified
service personnel to do electrical installation or
repair work, and always disconnect power before
accessing or exposing electrical equipment.

DISCONNECT POWER FIRST.
nect machine from power supply BEFORE mak­ing adjustments, changing tooling, or servicing
machine. This prevents an injury risk from unin­tended startup or contact with live electrical com­ponents.

EYE PROTECTION. Always wear ANSI-approved
safety glasses or a face shield when operating or
observing machinery to reduce the risk of eye
injury or blindness from flying particles. Everyday
eyeglasses are NOT approved safety glasses.

Always discon-

Model T28780 T28781 (Mfd. Since 06/19)

-9-

WEARING PROPER APPAREL. Do not wear
clothing, apparel or jewelry that can become
entangled in moving parts. Always tie back or
cover long hair. Wear non-slip footwear to reduce
risk of slipping and losing control or accidentally
contacting cutting tool or moving parts.

HAZARDOUS DUST. Dust created by machinery
operations may cause cancer, birth defects, or
long-term respiratory damage. Be aware of dust
hazards associated with each workpiece 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 [phone].

-10 -

Model T28780 T28781 (Mfd. Since 06/19)

Additional Safety for Router Tables

Serious cuts, amputation, entanglement, or death can occur from contact with spinning bit.
Improperly secured bits or spindle parts/fasteners can fly off and strike nearby operators
or bystanders with great force. Flying dust or debris from cutting operation can cause eye
injuries or blindness. To minimize risk of getting hurt or killed, anyone operating router MUST
completely heed hazards and warnings below.

AVOIDING AMPUTATION. To avoid making con-

tact with spinning router bit, never place hands
directly over or in front of bit. As one hand
approaches bit, move it away and over to other
side. Always keep hands at least 6" away from
spinning bit.

SECURING LEVERS AND KNOBS. Never oper­ate router table without first making sure all lock
levers and knobs are tight, and all fence hardware
and guide rails are secure. Otherwise, workpiece
can slip out of alignment while cutting and cause
injury from kickback.

DO NOT FORCE WORKPIECE. Never force
materials past router. Let router bit do the work.
Excessive force is likely to result in poor cutting
results and will cause kickback conditions that
could cause serious personal injury.

BLIND CUTTING. Keep router bit on underside
of workpiece when making blind cuts. This will
decrease risk of accidental contact with spinning
bit.

ROUTER BIT ROTATION. Always feed work­piece against rotation direction of bit. Otherwise,
workpiece could be aggressively pulled from your
hands, drawing them into spinning bit.

ROUTER BIT HEIGHT. Keep any unused portion
of bit below the table surface to minimize risk of
your hand contacting spinning bit.

ROUTER BIT SPEED. Do not exceed recom­mended speed of any router bit. Doing so can
cause bit to fracture or explode and cause injury.

CUTTING SUPPORT. NEVER cut workpiece
without using a fence, jig, or miter gauge as a
support guide. Otherwise, workpiece could be
aggressively pulled from your hands, drawing
them into spinning bit.

WORKPIECE SIZING. NEVER use workpiece
shorter than 6" without special fixtures or jigs.
Otherwise, workpiece can become trapped
between fence and router bit, which could draw
your hands into spinning bit.

USING SAFETY GUARDS. To prevent ampu­tation or other injuries, always use a guard.
Fabricate additional guards or jigs for special
circumstances. Use an overhead guard if fence
is removed.

TRIPPING HAZARD. To prevent tripping over
power cord of router when not in use, always dis­connect it and safely store it out of way.

APPROPRIATE WORKPIECES. Danger of kick­back and injury is increased when workpiece
has knots, holes, or foreign objects in it. Warped
stock should be flattened with a jointer before you
shape it with router.

TESTING ROTATION . With router disconnected
from power, rotate router spindle to test any new
setup to ensure proper bit clearance before start­ing router.

3

INSTALLING ROUTER BIT. Insert at least
bit shank into collet, and allow
between shank and bottom of collet to ensure bit
is securely installed.

1

⁄8" of clearance

⁄4 of

Model T28780 T28781 (Mfd. Since 06/19)

-11-

SECTION 2: POWER SUPPLY

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:

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

not properly grounded

Availability

Electrocution, fire, shock,

may occur if machine is

and connected to power
supply.

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.

110V Circuit Requirements

Nominal Voltage .................... 110V, 115 V, 120V

..........................................................60 Hz

Cycle
Phase
Power Supply Circuit

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

......................... 15 Amps

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

-12-

Model T28780 T28781 (Mfd. Since 06/19)

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 & Plug Requirements

it will not fit the outlet, have a qualified
electrician install the proper outlet with a

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

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

GROUNDED

5-15 RECEPTACLE

Grounding Pin

5-15 PLUG

Neutral Hot

Figure 4. Typical 5-15 plug and receptacle.

Connecting to ON/OFF Paddle Switch

The Models T28780 & T28781 include an ON/
OFF paddle switch with disabling key. Two power
cords are connected to the switch. The shorter
power cord has a 5-15 receptacle and connects to
the router power cord. The longer power cord has
a 5-15 plug and connects to a 110V power supply
circuit. See Connecting Power Cords on Page
26 detailed information about connecting a router
to the Models T28780 and T28781.

SHOCK HAZARD!
Two-prong outlets do not meet the grounding
requirements for this machine. Do not modify
or use an adapter on the plug provided—if

verified ground.

Model T28780 T28781 (Mfd. Since 06/19)

Extension Cords

If you must use an extension

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

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

-13-

SECTION 3: SETUP

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

,

please

at [phone].

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.

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!

Unpacking

Needed for Setup

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

Description Qty

• Phillips Head Screwdriver #1...................... 1

• Open-End Wrench or Socket 12mm .......... 1

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

• Level 36" ..................................................... 1

• Hex Wrenches 3, 5, 12mm ....................1 Ea

• 12" 2x4s ...................................................... 2

• Fine Ruler 24" ............................................. 1

If items are damaged

call us immediately

Save all packaging materials until

-14-

Model T28780 T28781 (Mfd. Since 06/19)