COPYRIGHT © APRIL, 2016 BY GRIZZLY INDUSTRIAL, INC. REVISED FEBRUARY, 2018 (HE)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#JH18073 PRINTED IN CHINA
V1.02.18
MODEL T27577
PICTURE FRAMING
MACHINE/UNDERPINNER
OWNER'S MANUAL
(For models manufactured since 3/16)
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 compre-
hension, 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 equip-
ment, such as those dust masks that are specially designed to filter
out microscopic particles.
INTRODUCTION ............................................................................................................................... 2
Machine Description ................................................................................................................... 2
Contact Info ................................................................................................................................ 2
Manual Accuracy ........................................................................................................................ 2
Identification ............................................................................................................................... 3
Controls & V-Nail Components .................................................................................................. 4
Machine Data Sheet ................................................................................................................... 5
SECTION 1: SAFETY ....................................................................................................................... 6
Safety Instructions for Machinery ............................................................................................... 6
SECTION 2: SETUP ......................................................................................................................... 7
Needed for Setup ....................................................................................................................... 7
Unpacking .................................................................................................................................. 7
Inventory ..................................................................................................................................... 8
Cleanup ...................................................................................................................................... 9
Site Considerations .................................................................................................................... 9
Assembly .................................................................................................................................. 10
SECTION 3: OPERATIONS ........................................................................................................... 11
Operation Overview.................................................................................................................. 11
V-Nail Size & Placement .......................................................................................................... 12
Changing V-Nails ..................................................................................................................... 13
Clamp Settings ......................................................................................................................... 13
Removing Jammed V-Nail ....................................................................................................... 14
SECTION 4: ACCESSORIES ......................................................................................................... 15
SECTION 5: MAINTENANCE......................................................................................................... 17
Schedule .................................................................................................................................. 17
Cleaning & Protecting .............................................................................................................. 17
Replacing V-Nail Driver ............................................................................................................ 18
Adjusting Driver Indicator ......................................................................................................... 19
Replacing Battery ..................................................................................................................... 19
SECTION 6: SERVICE ................................................................................................................... 20
Troubleshooting ........................................................................................................................ 20
Wiring Diagram......................................................................................................................... 21
SECTION 7: PARTS ....................................................................................................................... 22
Pedestal Breakdown ................................................................................................................ 22
Table Breakdown ..................................................................................................................... 24
Labels Breakdown & Parts List ................................................................................................ 26
WARRANTY & RETURNS ............................................................................................................. 29
Table of Contents
-2-
Model T27577 (Mfd. Since 3/16)
We stand behind our machines! If you have ques-
tions 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: [email protected]
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: [email protected]
Contact Info
We are proud to provide a high-quality owner’s
manual with your new machine!
We
made every effort to be exact with the
instruc-
tions, 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. W
e post
current
manuals and
manual updates for free
on our web-
site 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 documenta-
tion is available for your machine.
Manufacture Date
Serial Number
Manual Accuracy
INTRODUCTION
The Model T27577 Underpinner is a foot-oper-
ated device for assembling picture frames using
varying V-nail lengths to secure each corner.
The correct V-nail length used depends on V-nail
placement in workpiece (see V-Nail Placement
on Page 12) and workpiece thickness. V-nails
work best when used in combination with adhe-
sive to secure each corner.
Machine Description
Model T27577 (Mfd. Since 3/16)
-3-
A. Extension Table
B. Pressure Bar Support
C. Rear Position Stop
D. V-Nail Height Dial
E. Pressure Bar Lock
F. Pressure Bar
G. Pressure Pad
H. V-Nail Depth Indicator Light
I. Fence
J. Front Clamp
K. Frame Size Scale
L. Tool Tray
M. Fence Lock Handle
N. Foot Pad
O. Front Clamp Foot Pedal
P. Top Clamp Foot Pedal
Identification
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
Become familiar with the names and locations of the controls and features shown below to better understand
the instructions in this manual.
A
C
B
D
E
F
G
I
J
K
L
N
O
H
P
M
-4-
Model T27577 (Mfd. Since 3/16)
Controls & V-Nail
Components
D. Quick-Release Button: Releases pressure
bar for fast height adjustment over workpiece.
E. Pressure Pad: Holds workpiece firmly from
above as V-nail is inserted from underside of
table. Two pressure pads are included: round
and 90°. Pads thread into bottom of vertical
pressure bar and contact top of workpiece
while V-nail is inserted.
F. V-Nail Depth Indicator Light: Illuminates
when V-nail reaches proper depth.
G. Fence: Adjusts in or out depending upon
workpiece size. Fence angle is 90°.
H. Front Clamp: Secures inside angle during
V-nail insertion. Features two independently
adjustable gripping faces for securing odd-
shaped miters.
I. 120° & 135° Inserts: Place against fence for
clamping 6- and 8-sided frames.
J. Tool Tray: Holds tools and V-nails.
K. V-Nail Height Dial: Adjusts V-nail driver
depth depending upon size of V-nail used.
Turn dial clockwise for smaller V-nails. Turn
dial counterclockwise for larger V-nails.
L. Pressure Bar Foot Pedals: Controls down-
ward force of pressure bar.
M. Front Clamp Foot Pedal: Controls front
clamp pressure.
Refer to Figures 1–2 and the following descrip-
tions to become familiar with the basic controls
and components of this machine. Understanding
these items and how they work will help you
understand the rest of the manual and stay safe
when operating this machine.
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
Table Controls
A. Fence Stop & Lock Handle: Locks fence
setting for consistent V-nail placement.
B. Pressure Bar Lock: Locks pressure bar
position over frame.
C. Pressure Bar: Adjusts height of pressure
pad over workpiece. Bar may be hand-
turned, or the quick-release button can be
used for faster vertical bar adjustments.
Figure 1. Table controls.
B
C
H
E
I
F
D
G
J
A
Figure 2. Stand controls and V-nail dial.
L
L
K
M
Model T27577 (Mfd. Since 3/16)
-5-
Machine Data Sheet
Page 1 of 2 Model T27577
MODEL T27577
PICTURE FRAMING MACHINE / UNDERPINNER
Page 1 of 3 Model GXXXX
MODEL XXXX
MACHINE DESCRIPTION
Product Dimensions:
Weight ......................................................................................................................................................................... 2420 lbs.
Width (side-to-side) x Depth (front-to-back) x Height .............................................................................. 80
3
⁄4 x 32
1
⁄8 x 54
3
⁄8 in.
Footprint (Length/Width) ...................................................................................................................................... 80
3
⁄4 x 19
1
⁄2 in.
Shipping Dimensions:
Type ................................................................................................................................................................. Wood Slat Crate
Content .......................................................................................................................................................................... Machine
Weight .......................................................................................................................................................................... 2684 lbs.
Length x Width x Height .....................................................................................................................................90 x 40 x 69 in.
Must Ship Upright .................................................................................................................................................................Yes
Electrical:
Required Requirement ...........................................................................................................110V/220V, Single-Phase, 60 Hz
Prewired Voltage ................................................................................................................................................................ 110V
Full-Load Current Rating ..................................................................................................................11A at 110V, 5.5A at 220V
Minimum Circuit Size ........................................................................................................................15A at 110V, 15A at 220V
Connection Type ..................................................................................................................................................... Cord & Plug
Power Cord Included ............................................................................................................................................................Yes
Power Cord Length ...............................................................................................................................................................6 ft.
Power Cord Gauge ....................................................................................................................................................... 16 AWG
Plug Included ........................................................................................................................................................................Yes
Included Plug Type ...............................................................................................................................................5-15 for 110V
Recommended Plug Type ....................................................................................................................................6-15 for 220V
Switch Type ............................................................................................................................................. ON/OFF Push Button
Motor:
Main
Type ................................................................................................................................ TEFC Capacitor-Start Induction
Horsepower ...............................................................................................................................................................1 HP
Voltage ..................................................................................................................................................................... 220V
Phase .................................................................................................................................................................. 3-Phase
Amps ................................................................................................................................................................. 11A/.5.5A
Speed ...............................................................................................................................................................1725 RPM
Cycle ........................................................................................................................................................................ 60 Hz
Number Of Speeds ...............................................................................................................................................Variable
Power Transfer ........................................................................................................................................... V-Belt & Gear
Bearings ..................................................................................................................... Shielded and Permanently Sealed
Product Dimensions:
Weight ........................................................................................................................................................................... 104 lbs.
Width (side-to-side) x Depth (front-to-back) x Height .......................................................................... 28-1/2 x 30 x 48-1/2 in.
Foot Print (Length/Width) ...........................................................................................................................................18 x 15 in.
Shipping Dimensions:
Type ........................................................................................................................................................................ Wood Crate
Weight ............................................................................................................................................................................ 121 lbs.
Length/Width/Height .....................................................................................................................................43 x 19-1/2 x 23 in.
Must Ship Upright .................................................................................................................................................................Yes
Electrical:
Power Requirement ...................................................................................................................................................9V Battery
Main Specifications:
Capacities
Minimum Frame Width ............................................................................................................................................1/4 in.
Frame/Moulding Width Range ...................................................................................................................1/4 – 3-5/16
in.
Frame/Moulding Thickness Range ..............................................................................................................1/4 – 3-1/2
in.
V-Nail Sizes ....................................................................................................................................... 5, 7, 10, 12, 15 mm
Fence Templates .................................................................................................................................. 90, 120, 135 deg.
V-Nail Channel Capacity ................................................................................................................................ 350 V-Nails
Table Information
Table Length ............................................................................................................................................................18 in.
Table Width ..............................................................................................................................................................12 in.
Table Thickness ......................................................................................................................................................5/8 in.
Ext. Table Width .................................................................................................................................................13-3/4 in.
Ext. Table Length ...............................................................................................................................................13-3/4 in.
Ext. Table Thickness ...............................................................................................................................................1/8 in.
Floor-to-Table Height .........................................................................................................................................37-1/2 in.
Construction
Main Table .................................................................................................................................................................Steel
Ext. Tables ................................................................................................................................................................Steel
Body ..........................................................................................................................................................................Steel
Stand .........................................................................................................................................................................Steel
Paint Type/Finish ......................................................................................................................................Powder Coated
Other Specifications:
Country of Origin ............................................................................................................................................................... China
Warranty ........................................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time ...................................................................................................................... 20 Minutes
Serial Number Location ................................................................................................................................................ ID Label
ISO 9001 Factory ................................................................................................................................................................... No
CSA Certified ......................................................................................................................................................................... No
-6-
Model T27577 (Mfd. Since 3/16)
SECTION 1: SAFETY
Safety Instructions for Machinery
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.
FORCING MACHINERY. Do not force machine.
It will do the job safer and better at the rate for
which it was designed.
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.
USE RECOMMENDED ACCESSORIES. Consult
this owner’s manual or the manufacturer for rec-
ommended accessories. Using improper acces-
sories will increase the risk of serious injury.
OWNER’S MANUAL. Read and understand this
owner’s manual BEFORE using machine.
TRAINED OPERATORS ONLY. Untrained oper-
ators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine.
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.
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!
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 impor-
tance 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 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.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
This symbol is used to alert the user to useful information about
proper operation of the machine.
NOTICE
Model T27577 (Mfd. Since 3/16)
-7-
SECTION 2: SETUP
Wear safety glasses during
the entire setup process!
The following items are needed, but not included,
for the setup/assembly of this machine.
Description Qty
• Additional People ....................................... 1
• Safety Glasses ........................................... 1
• Cleaner/Degreaser ..................... As Needed
• Disposable Shop Rags ............... As Needed
• Straightedge 24" ......................................... 1
• 9V Battery ................................................... 1
Needed for Setup
This machine was carefully packaged for safe
transport. When unpacking, separate all enclosed
items from packaging materials and inspect them
for shipping damage.
If items are damaged
,
please
call us immediately at (570) 546-9663.
IMPORTANT:
Save all packaging materials until
you are completely satisfied with the machine and
have resolved any issues between Grizzly or the
shipping agent. You MUST have the original pack-
aging to file a freight claim. It is also extremely
helpful if you need to return your machine later.
Unpacking
SUFFOCATION HAZARD!
Keep children and pets away
from plastic bags or packing
materials shipped with this
machine. Discard immediately.
-8-
Model T27577 (Mfd. Since 3/16)
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, care-
fully check around/inside the machine and
packaging materials. Often, these items get
lost in packaging materials while unpack-
ing or they are pre-installed at the factory.
Inventory (Figure 3): Qty
A. Extension Tables ........................................ 2
B. Tool Tray ..................................................... 1
C. Rubber Feet ............................................... 4
D. Vertical Clamp Assembly ........................... 1
E. Magnetic Tool ............................................. 1
F. Angle Inserts: 120° & 135° ...................1 Ea.
G. Pressure Pad: Round & 90° .................1 Ea.
H. Front Clamp ................................................ 1
I. Open-End Wrench 8/10mm ........................ 1
J. Hex Wrench Set: 2.5, 3, 4, 5, 6mm ......1 Ea.
K. Hardware (not shown)
—Cap Screws M6-1 x 10 ......................... 10
—Flat Washers 6mm ............................... 10
Figure 3. Model T27577 inventory.
A
B
C
D
E
F
G
H
I
J
A
Model T27577 (Mfd. Since 3/16)
-9-
Cleanup Site Considerations
The unpainted surfaces of your machine are
coated with a heavy-duty rust preventative that
prevents corrosion during shipment and storage.
This rust preventative works extremely well, but it
will take a little time to clean.
Be patient and do a thorough job cleaning your
machine. The time you spend doing this now will
give you a better appreciation for the proper care
of your machine's unpainted surfaces.
There are many ways to remove this rust preven-
tative, but the following steps work well in a wide
variety of situations. Always follow the manufac-
turer’s instructions with any cleaning product you
use and make sure you work in a well-ventilated
area to minimize exposure to toxic fumes.
Before cleaning, gather the following:
• Disposable rags
• Cleaner/degreaser (WD•40 works well)
• Safety glasses & disposable gloves
• Plastic paint scraper (optional)
Basic steps for removing rust preventative:
1.
Put on safety glasses.
2.
Coat the rust preventative with a liberal
amount of cleaner/degreaser, then let it soak
for 5–10 minutes.
3.
Wipe off the surfaces. If your cleaner/degreas-
er is effective, the rust preventative will wipe
off easily. If you have a plastic paint scraper,
scrape off as much as you can first, then wipe
off the rest with the rag.
4.
Repeat Steps 2–3 as necessary until clean,
then coat all unpainted surfaces with a quality
metal protectant to prevent rust.
NOTICE
Avoid chlorine-based solvents, such as
acetone or brake parts cleaner, that may
damage painted surfaces.
Figure 4. Minimum working clearances.
30"
28
1
/
2
"
Weight Load
Refer to the Machine Data Sheet for the weight
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 work-
piece that will be used. Additionally, consider the
weight of the operator and any dynamic loading
that may occur when operating the machine.
Physical Environment
The physical environment where the machine
is operated is important for safe operation and
longevity of components. For best results, oper-
ate this machine in a dry environment that is
free from excessive moisture, hazardous chemi-
cals, airborne abrasives, or extreme conditions.
Extreme conditions for this type of machinery are
generally those where the ambient temperature
range is outside 41°–104°F; the relative humidity
range is outside 20–95% (non-condensing); or
the environment is subject to vibration, shocks,
or bumps.
Children or untrained people
may be seriously injured by
this machine. Only install in an
access restricted location.
Lighting
Lighting around the machine must be adequate
enough that operations can be performed safely.
Shadows, glare, or strobe effects that may distract
or impede the operator must be eliminated.
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 main-
tenance and service described in this manual.
See below for required space allocation.
-10-
Model T27577 (Mfd. Since 3/16)
Assembly
Figure 6. Pressure pad and extension wings
installed.
3. Install correct pressure pad for underpinner
operation by threading it onto bottom of pres-
sure bar. Attach pressure bar to cross bar
using adjustable handle (see Figure 6).
4. Install front clamp onto spring assembly pin
(see Figure 7) and into table slot.
Figure 7. Installing front clamp.
5. Install 9V battery into battery case under rear
side of work table.
Figure 8. Location of indicator light battery.
Spring
Assembly
Pin
Front Clamp
Pressure
Pad
x 8
Extension Wing
(1 of 2)
Cross Bar
Battery Case
To assemble machine:
1. With the help of an assistant, tilt underpinner
on its side and install four rubber feet onto
base (see Figure 5).
The machine must be fully assembled before it
can be operated. Before beginning the assembly
process, refer to
Needed for Setup and gather
all
listed items. To ensure the assembly process
goes smoothly, first clean any
parts that are cov-
ered or coated in heavy-duty rust preventative (if
applicable).
2. Attach table extension wings using (8) M6-1 x
10 cap screws and (8) 6mm flat washers (see
Figure 6).
Note: Use a straightedge to adjust exten-
sion wings level with the table (see Figure
6). It may be necessary to adjust extension
wings up or down to level. Thin shims may
be placed between extension wing and table
edge to raise extension wing, if needed.
Figure 5. Attaching rubber feet to base.
Rubber Feet
Rubber Feet
Adjustable
Handle
Straightedge
Model T27577 (Mfd. Since 3/16)
-11-
SECTION 3: OPERATIONS
Operation Overview
The purpose of this overview is to provide the nov-
ice machine operator with a basic understanding
of how the machine is used during operation, so
the
machine controls/components
discussed later
in this manual
are easier to understand.
Due to the generic nature of this overview, it is
not intended to be an instructional guide. To learn
more about specific operations, read this entire
manual,
seek additional
training from experienced
machine operators
, and do additional research
outside of this manual by reading "how-to" books,
trade magazines, or websites.
To complete a typical operation, operator
does the following:
1. Examines workpiece components to make
sure they are suitable for framing.
2. Attaches appropriate pressure pad (90° or
round) to bottom of pressure bar.
3. Adjusts fence and fence stops to align frame
corner with pressure bar and V-nail insertion
location.
4. Adjusts V-nail height dial to accommodate
workpiece.
5. Chooses number and size of V-nails to be
inserted.
6. Positions workpiece into clamping area,
securing front clamp placement using clamp
pedal to apply pressure.
7. Adjusts height of pressure pad above
workpiece.
8. Presses down on pressure bar foot pedal
until indicator light illuminates.
9. Releases pressure bar foot pedal, and press-
es down on clamp pedal to release workpiece.
To reduce your risk of
serious injury, read this
entire manual BEFORE
using machine.
Eye injury hazard! Always
wear safety glasses when
using this machine.
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 proj-
ects. Regardless of the content in this sec-
tion, Grizzly Industrial will not be held liable
for accidents caused by lack of training.
-12-
Model T27577 (Mfd. Since 3/16)
V-Nail Size &
Placement
The Model T27577 accepts 5, 7, 10, 12, and
15mm long Universal Type V-nails. Prior to V-nail
insertion, apply adhesive to the mitered edge
and clamp frame into underpinner (see Clamp
Settings on Page 13).
Stacking Multiple V-Nails
Figure 12. Placing multiple v-nails.
Single
V-Nail
Stacked
V-Nails
Inside Edge
Stacked V-nails may be used to reinforce irregu-
lar frame thicknesses. Inserting one V-nail after
another into the same position will drive the first
V-nail deeper (see Figure 12). Single V-nails can
then be placed nearby for added support (see
Figure 12).
Determining V-Nail Size
The correct V-nail size (length) is determined by
the thickness of the workpiece. To ensure a strong
frame assembly, V-nail length must at least half
the thickness of the frame. An easy rule of thumb
is to take your workpiece thickness, subtract 2mm
and then round down to the next available size of
V-nail (see Figure 9).
Use a test piece to gauge V-nail depth, or hold a
V-nail beside the workpiece to check depth.
2mm
Minimum
Figure 9. Determining V-nail depth.
Frame Face
(side view)
Inserting Single V-Nail
Figure 10. Single V-nail in workpiece.
For simple mitered corners on frames 2
1
⁄2" Wide
or smaller, a single centered V-nail is typically
used (see Figure 10).
Centered
Frame Face
(side view)
Outside Edge
Top View
Inserting Multiple V-Nails
Multiple V-nails are typically used on framers
larger than 2
1
⁄2" wide. When inserting two or
more V-nails per corner, the first V-nail should be
roughly
1
⁄4 the stock width from the inside edge of
miter (see Figure 11). The second V-nail should
be roughly
1
⁄3 the stock width from the outside
edge of the miter (see Figure 11).
Figure 11. Two V-nails in workpiece.
Frame Face
(side view)
1
⁄3
Stock Width
1
⁄4
Stock Width
Outside Edge
Top View
Model T27577 (Mfd. Since 3/16)
-13-
Changing V-Nails
V-nails work in tandem with adhesive to support
each corner of the workpiece when inserted from
the backside of the frame (refer to V-Nail Size &
Placement).
Tool Needed Qty
Magnetic Tool .................................................... 1
To change V-nails:
1. Pull nylon cord loop and secure it around cap
screw on work table (see Figure 13).
Figure 13. Pulling nylon cord to remove V-nails.
2. Use magnetic tool to retrieve remaining
V-nails in V-nail channel (see Figure 14).
3. Turn V-nail height dial to correct millimeter
size for the length of V-nails to be installed.
Insert new strip of V-nails with glued side fac-
ing up (see Figure 14), and release cord.
Figure 14. Retrieving unused V-nails and
adjusting V-nail height dial.
15
12
10
7
5
V-Nail
Channel
Cord
Loop
Cap
Screw
V-Nails
Clamp Settings
The Model T27577 features two hold-down
clamps. Proper clamp setup ensures consistent
V-nail placement and machine function.
The vertical clamp secures the frame as a V-nail
is inserted into the workpiece. When either large
foot pedal is pressed, the pressure bar supporting
the top clamp lowers to the workpiece, securing
the frame. As the top clamp secures the frame,
a V-nail is inserted into the bottom side of the
workpiece. For best results, top clamp should be
set 10–20mm above workpiece before the foot
pedal is pressed (see Figure 15).
The front clamp is spring-loaded and presses the
workpiece against the fence. When pressed, the
small foot pedal retracts the front clamp jaws from
the fence, allowing the workpiece to move. When
the pedal is released, the front clamp secures
the workpiece against the fence. For best results,
the front clamp should be set 3–9mm from the
workpiece (see Figure 17).
1. Attach appropriate pressure pad to pressure
bar.
2. Position workpiece against fence.
3. Center pressure pad over workpiece, and
tighten pressure bar lock handle.
4. Press quick-release button and lower pres-
sure pad 10–20mm above workpiece (see
Figure 15).
Figure 15. Adjusting pressure pad above
workpiece.
Quick-Release
Button
Adjusting Vertical Clamp
10–20mm
Gap
Lock
Handle
-14-
Model T27577 (Mfd. Since 3/16)
Removing Jammed
V-Nail
V-nails may become jammed in the channel,
requiring removal of the V-nail block (see Figure
29). The driver, which presses the V-nail into the
workpiece, can also become jammed in the V-nail
block due to adhesive build up on sliding surface.
Keep the work area and components clean to
prevent this.
Tools Needed Qty
Open-End Wrench 8mm.................................... 1
Hammer ............................................................. 1
Dowel 10" .......................................................... 1
Solvent/Degreaser ............................. As Needed
1. Remove remaining V-nails from channel.
2. Loosen hex bolt securing V-nail block (see
Figure 18), and remove V-nail block.
Note: V-nail block may be stuck in place due
to adhesive build up. Gently tap underside of
V-nail block with a length of dowel and ham-
mer to loosen.
3. Clear jammed V-nail, clean all components
with solvent, and re-install V-nail block.
Retighten hex bolt to secure V-nail block.
Figure 16. Inserting front clamp onto spring
assembly pin.
Spring
Assembly
Pin
Front
Clamp
3. Insert front clamp onto spring assembly pin
in a position where the front clamp jaws are
within 3–9mm (
1
⁄8"–
3
⁄8") from workpiece (see
Figure 16), and release front clamp foot
pedal. Front clamp will close against inside
edge of workpiece.
4. Check miter fit, and adjust as needed.
Figure 18. V-nail driver and block assembly
(top), and removing V-nail block (bottom).
Hex Bolt
V-nail
Block
V-nail
Block
V-nail
Driver
Removing Jammed V-Nails
Adjusting Front Clamp
1. Slide fence in or out based on workpiece
width and desired V-nail placement. When
fence is positioned correctly, tighten fence
lock handle (see Figure 1 on Page 4) to
secure setting.
Note: Placing one mitered piece against the
fence while positioning it can help you visu-
ally verify V-nail placement.
2. Place both workpieces against fence (see
Figure 17), and press down on front clamp
foot pedal. This will move spring assem-
bly pin into a favorable position for proper
front clamp installation during next step (see
Figure 16).
Figure 17. Front clamp distance to workpiece.
Front
Clamp
3–9mm
Gap
Hex
Bolt
Model T27577 (Mfd. Since 3/16)
-15-
SECTION 4: ACCESSORIES
ACCESSORIES
Installing unapproved accessories may
cause machine to malfunction, resulting in
serious personal injury or machine damage.
To reduce this risk, only install accessories
recommended for this machine by Grizzly.
NOTICE
Refer to our website or latest catalog for
additional recommended accessories.
order online at www.grizzly.com or call 1-800-523-4777
Figure 19. Miter framing V-nail.
T27578—5mm V-Nails, 6,000 Per Box
T27579—7mm V-Nails, 6,000 Per Box
T27580—10mm V-Nails, 6,000 Per Box
T27581—12mm V-Nails, 6,000 Per Box
T27582—15mm V-Nails, 6,000 Per Box
Always have the correct V-nail size on hand! Each
size features a glued edge to keep each v-nail
strip together for consistent results.
Figure 20. H7478 Incra® MITER EXPRESS.
H7478 — Incra® MITER EXPRESS
This sled is a sliding, miter-cutting platform
that fully supports and controls your workpiece
throughout the cut. Miter gauges drag your board
across the table, a sled slides the workpiece giv-
ing more support and control creating better, more
consistent cuts. The Miter Express is designed to
let you instantly drop and lock your miter gauge
into the sliding platform. Once docked, it stays put
until you undock it to switch back to your regular
miter gauge. Note: Miter gauge shown in photo is
sold separately.
H5688—Center Square Set of 6
This Stainless Steel Center Square Set comes
with just about all you need to layout your machin-
ing jobs. Includes 6” scale with inch and metric
measurements, 2” center square, scribe and 1
each 2
3
⁄4”, 4, 4
3
⁄4” and 7” squares. Custom fitted
case.
Figure 21. H5688 Center Square Set.
-16-
Model T27577 (Mfd. Since 3/16)
G5562—SLIPIT
®
1 Qt. Gel
G5563—SLIPIT
®
12 Oz. Spray
G2871—Boeshield
®
T-9 12 Oz. Spray
G2870—Boeshield
®
T-9 4 Oz. Spray
H3788—G96
®
Gun Treatment 12 Oz. Spray
H3789—G96
®
Gun Treatment 4.5 Oz. Spray
Figure 25. Recommended products for protect-
ing unpainted cast iron/steel part on machinery.
Basic Eye Protection
T20501—Face Shield Crown Protector 4"
T20502—Face Shield Crown Protector 7"
T20503—Face Shield Window
T20451—“Kirova” Clear Safety Glasses
T20452—“Kirova” Anti-Reflective S. Glasses
H7194—Bifocal Safety Glasses 1.5
H7195—Bifocal Safety Glasses 2.0
H7196—Bifocal Safety Glasses 2.5
Figure 22. Assortment of basic eye protection.
T20451
T20452
T20502
T20503
H7194
T10456—Heavy-Duty Anti-Fatigue Mat 3' x 5'
This Heavy-Duty Anti-Fatigue Mat features bev-
eled edges and no-slip tread for safety and
comfort. Open-hole design allows liquid to drain
through, so it's perfect for wet or oily conditions.
Measures 3' wide x 5' long x 3/8" thick.
Figure 24. Model T10456 Anti-Fatigue Mat.
T21578—12” Beveled Straight Edges w/ Scale
T21579—24” Beveled Straight Edges w/ Scale
T21580—36” Beveled Straight Edges w/ Scale
These Bevel Straight Edges are made from hard-
ened steel and feature a satin chrome finish and
are ground and lapped for straightness and paral-
lelism. Each straightedge offers true right angles
for all edges, along with a beveled edge with scale
in US standard. Accuracy of 0.001”, and a resolu-
tion of
1
⁄64”.
Figure 23. T21578, T21579, and T21580
straightedge.
T21580
T21579
T21578
Model T27577 (Mfd. Since 3/16)
-17-
SECTION 5: MAINTENANCE
For optimum performance from your machine,
follow this maintenance schedule and refer to any
specific instructions given in this section.
Daily Check
• Loose bolts.
• Remove adhesive build up.
• Worn or damaged front clamp cable.
• Worn or damaged wiring.
• Damaged depth indicator light.
• Any other unsafe condition.
Weekly Maintenance
• Check/lubricate moving components.
• Clean/lubricate V-nail driver and block.
• Clean/lubricate fence slide.
• Clean/grease front clamp cable.
Schedule
To reduce risk of shock or
accidental startup, always
disconnect machine from
power before adjustments,
maintenance, or service.
It is important to routinely clean and lubricate
the V-nail driver, V-nail block, and fence slides.
Adhesive from workpieces can build up, caus-
ing wear on components. Use a resin dissolving
cleaner to remove it. Use recommended lubri-
cants (see Accessories on Page 16) to keep
machine functioning properly.
Protect the unpainted table by wiping it clean after
every use—this ensures moisture from wood dust
does not remain on bare metal surfaces. Keep
the table rust-free with regular applications of
products like G96
®
Gun Treatment, SLIPIT
®
, or
Boeshield
®
T-9 (see Page 16 for more details).
Cleaning &
Protecting
Figure 26. Primary worktable cleaning and
lubrication points.
V-nail
Block
Fence
Slide
Figure 27. Cleaning and lubrication areas
beneath work table.
Guide
Rods
Driver
-18-
Model T27577 (Mfd. Since 3/16)
Replacing V-Nail
Driver
The V-nail driver will eventually require replace-
ment due to normal wear and tear as the machine
is used. The V-nail driver may need replacing
if V-nails easily jam in V-nail block, or if driver
becomes jammed inside V-nail block channel,
which signals driver is worn. Because the V-nail
driver is considered to be a wear item, normal
wear and tear is not covered under warranty. It
is important to keep the V-nail driver and V-nail
block clear of debris and adhesive buildup to pro-
long its life.
Tools Needed Qty
Open-End Wrench 8mm.................................... 1
Hex Wrench 3mm .............................................. 1
Magnetic Pen Tool ............................................. 1
To replace V-nail driver:
1. Loosen cap screw securing V-nail driver (see
Figure 28).
Figure 28. Location of cap screw that secures
V-nail driver assembly.
2. Loosen hex bolt securing V-nail block, and
remove block from work table.
3. Move vertical clamp aside, and lower pres-
sure pad all the way down.
4. Press foot pedal. Vertical clamp will contact
work table and driver will move into view.
5. Remove old driver and install new driver.
IMPORTANT: Ensure driver orientation is
correct. V-shape lip must point toward center
of V-nail block (see Figure 31).
6. Press driver into place and tighten cap screw.
7. Re-insert V-nail block and tighten hex bolt.
Figure 30. Removing driver from work table.
V-Nail
Block
Driver
Figure 31. Driver orientation in V-nail block.
Driver
V-Nail
Block
Figure 29. Removing V-nail block.
Hex Bolt
V-nail
Block
V-Nail
Driver
Cap Screw
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