Grizzly T28522 User guide

MODEL T28522

24" PAN & BOX BRAKE

OWNER'S MANUAL

(For models manufactured since 09/18)

COPYRIGHT © NOVEMBER, 2018 BY GRIZZLY INDUSTRIAL, INC. REVISED SEPTEMBER, 2021 (JL)

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

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

#ES19792 PRINTED IN CHINA

V1.0 9.21

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
Manual Accuracy
Identification
Controls & Components
Machine Data Sheet

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

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

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

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

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

SECTION 1: SAFETY

Safety Instructions for Machinery
Additional Safety for Pan & Box Brakes

SECTION 2: SETUP

Needed for Setup
Unpacking
Hardware Recognition Chart
Inventory
Cleanup
Cleaning Fingers
Site Considerations
Bench Mounting

SECTION 3: OPERATIONS

Operation Overview.................................................................................................................. 14

Spacing Fingers

Aligning Fingers........................................................................................................................ 15

Adjusting Setback..................................................................................................................... 16

Adjusting Clamping Pressure
Basic Bending
Bending Allowance

SECTION 4: ACCESSORIES

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

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

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

....................................................................................................................... 6

............................................................................................... 6

.................................................................................... 8

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

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

.................................................................................................... 10

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

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

....................................................................................................................... 13

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

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

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

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

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

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

SECTION 5: MAINTENANCE......................................................................................................... 21

Schedule
Cleaning & Protecting
Lubrication

SECTION 6: SERVICE

Troubleshooting
Aligning Bending Block

SECTION 7: PARTS

Main
Labels & Cosmetics

WARRANTY & RETURNS

.................................................................................................................................. 21

.............................................................................................................. 21

................................................................................................................................ 21

................................................................................................................... 22

........................................................................................................................ 22

............................................................................................................ 23

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

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

................................................................................................................. 25

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

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

serial number

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

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

Email: [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

serial number

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

INTRODUCTION

Contact Info

and manufacture date from the

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

Manufacture Date

Serial Number

-2-

Model T28522 (Mfd. Since 09/18)

Identification

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

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

Bending

Block

Bending

Leaf

Setback

Wheel

Bending
Handles

Clamping

Finger (1 of 5)

Clamping

Handles

Clamping

Leaf

Clamping

Pressure

Adjustment

Rod (1 of 2)

Model T28522 (Mfd. Since 09/18)

Setback

Wheel

using machine.

-3-

Controls &

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

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

E. Clamping Pressure Adjustment Rod

(1 of 2): Move up or down to set clamp-

ing pressure on workpiece according to
workpiece gauge. Lock rod in place with jam
nuts.

Bending Leaf: Swivels up to bend workpiece.

F.

Bending Handle (1 of 2): Use to raise bend-

G.

ing leaf and produce bend in workpiece.

H

B

C

D

E

F

G

Figure 1. Controls and components—front.

Clamping Leaf: Holds and positions clamp-

A.

ing fingers.

Clamping Handle (1 of 2): Use to raise and

B.

lower clamping leaf.

Clamping Finger (1 of 5): Holds workpiece

C.

in place while bending block produces bend.
Fingers can be individually removed or repo­sitioned to allow clearance for workpiece.

Figure 2. Controls and components—rear.

H. Setback Wheel (1 of 2): Use to adjust dis-

tance between clamping fingers and bend­ing block. Moves clamping leaf forward and
backward.

Sharp edges of sheet metal
can easily cut fingers,
hands, or other body parts.
Always wear leather gloves
when handling sheet metal,
and always chamfer and
deburr the edges.

using machine.

Bending Block: Pivots with bending leaf to

D.

produce bend in workpiece.

-4-

Model T28522 (Mfd. Since 09/18)

Machine Data Sheet

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

MODEL T28522

24" PAN & BOX BRAKE

Product Dimensions:

Weight ............................................................................................................................................................................. 84 lbs.

Width (side-to-side) x Depth (front-to-back) x Height .......................................................................... 32 x 11-1/2 x 16-1/2 in.

Footprint (Length/Width) ............................................................................................................................... 26-1/2 x 10-1/2 in.

Shipping Dimensions:

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

Weight ............................................................................................................................................................................ 110 lbs.

Length/Width/Height ...........................................................................................................................................34 x 14 x 19 in.

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

Main Specifications:

Operation Information

Brake Range ...................................................................................................................................................0–135 deg.

Maximum Width ........................................................................................................................................................ 24 in.

Maximum Pan Depth ..................................................................................................................................................2 in.

Minimum Reverse Bend ..........................................................................................................................................3/8 in.

Number of Fingers ...........................................................................................................................................................5

Width of Fingers ...................................................................................................................................... 1, 2, 3, 8, 10 in.

data sheet

Capacities

Aluminum .............................................................................................. 16 gauge @ Half Width, 18 gauge @ Full Width

Mild Steel .............................................................................................. 18 gauge @ Half Width, 20 gauge @ Full Width

Stainless Steel ...................................................................................... 20 gauge @ Half Width, 22 gauge @ Full Width

Construction

Fingers .............................................................................................................. Precision-Ground Steel, Hardened Edge

Base ..........................................................................................................................................................................Steel

Bending Leaf .............................................................................................................................................................Steel

Clamping Leaf ...........................................................................................................................................................Steel

Paint Type/Finish ...................................................................................................................................................Enamel

Other Specifications:

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

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

Approximate Assembly & Setup Time ......................................................................................................................15 Minutes

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

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

CSA Certified .........................................................................................................................................................................No

Model T28522 (Mfd. Since 09/18)

-5-

SECTION 1: SAFETY

For Your Own Safety, Read Instruction

Manual Before Operating This Machine

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

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

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

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

Alerts the user to useful information about proper operation of the

NOTICE

machine to avoid machine damage.

Safety Instructions for Machinery

OWNER’S MANUAL. Read and understand this

owner’s manual BEFORE using machine.

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

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

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

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

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

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

Always discon-

-6-

Model T28522 (Mfd. Since 09/18)

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].

Model T28522 (Mfd. Since 09/18)

-7-

Additional Safety for Pan & Box Brakes

Hands/fingers can be crushed or severely pinched if caught between clamping fingers and
bending blocks during operation. Severe cuts can occur to hands/fingers when contacting
sharp workpiece edges. To minimize risk of injury, anyone operating this machine MUST
completely heed the hazards and warnings below.

CRUSHING & AMPUTATION INJURIES. The

brake can quickly crush or amputate fingers,
hands, or body parts. Never place fingers, hands,
or body parts between or near the clamping fin­gers and bending blocks during operation.

SECURING BRAKE. Before using, secure the
brake to the workbench so it can support the
weight and dynamic forces involved in bending
sheet metal. Otherwise, the brake may unexpect­edly move or tip during operation, causing serious
injury or property damage.

TOOLS IN POOR CONDITION. Using this tool
with loose hardware or damaged components
could result in sudden, unexpected movements
during use. Inspect the brake for cracked compo­nents, damaged linkage, levers, or loose fasten­ers. Correct any problems before use.

LEAVING UNATTENDED. To reduce the risk of
crushing or amputation injuries with children or visi­tors, lower the clamping leaf when not in use.

METAL EDGES. Sharp edges on sheet metal can
produce severe cuts. Always wear leather gloves
and chamfer/de-burr sharp sheet metal edges
before bending the workpiece with this machine.

COMFORTABLE BODY POSITION. The required
body motion to operate the brake can result in
operator injury over time if proper ergonomics are
not used during operation.

HEATING METAL. Heating the workpiece with a
torch or welding it while clamped in the brake may
weaken the fingers, blocks, and frame. Do not use
a torch, welder, or other similar heating tool near
the brake.

CAPACITY. Exceeding the capacity of the brake
may result in sudden breakage that ejects danger­ous metal debris at the operator or bystanders, or
causes machine damage. Only use sheet metal
that is within the rated capacity of this brake (refer
to the Machine Data Sheet).

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

-8-

No list of safety guidelines can be com­plete. Every shop environment is different.
Always consider safety first, as it applies
to your individual working conditions. Use
this and other machinery with caution and
respect. Failure to do so could result in
serious personal injury, damage to equip­ment, or poor work results.

Model T28522 (Mfd. Since 09/18)

SECTION 2: SETUP

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

,

please

IMPORTANT:

you are completely satisfied with the machine and
have resolved any issues between Grizzly or the
shipping agent. You MUST have the original pack-

aging to file a freight claim. It is also extremely
helpful if you need to return your machine later.

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

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

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 and leather work gloves
during the entire setup process!

Needed for Setup

Description Qty

• Additional Person ....................................... 1

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

• Leather Work Gloves (each person) .... 1 Pair

• Solvent/Cleaner (Page 11) ......... As Needed

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

• Mounting Hardware (Page 13) ... As Needed

Unpacking

Lifting heavy machinery or
parts without proper assis­tance or equipment may
result in strains, back inju­ries, crushing injuries, or
property damage.

If items are damaged

call us immediately at [phone].

Save all packaging materials until

SUFFOCATION HAZARD!

machine.

Model T28522 (Mfd. Since 09/18)

-9-

Hardware Recognition Chart

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

Flat
Head
Cap
Screw

-10 -

5mm

5mm

Model T28522 (Mfd. Since 09/18)

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.

The unpainted surfaces of your machine are
coated with a heavy-duty rust preventative that
prevents corrosion during shipment and storage.
This rust preventative works extremely well, but it
will take a little time to clean.

Be patient and do a thorough job cleaning your
machine. The time you spend doing this now will
give you a better appreciation for the proper care
of your machine's unpainted surfaces.

There are many ways to remove this rust preven­tative, but the following steps work well in a wide
variety of situations. Always follow the manufac­turer’s instructions with any cleaning product you
use and make sure you work in a well-ventilated
area to minimize exposure to toxic fumes.

Before cleaning, gather the following:

• Disposable rags

• Cleaner/degreaser (WD•40 works well)

• Safety glasses & disposable gloves

• Plastic paint scraper (optional)

Basic steps for removing rust preventative:

1.

2. Coat the rust preventative with a liberal

amount of cleaner/degreaser, then let it soak

3.

off easily. If you have a plastic paint scraper,
scrape off as much as you can first, then wipe

4.

then coat all unpainted surfaces with a quality

Cleanup

Cleanup

If you cannot find an item on this list, care­fully check around/inside the machine and
packaging materials. Often, these items get
lost in packaging materials while unpack­ing or they are pre-installed at the factory.

Inventory (Figures 3–4) Qty

A. Pan & Box Brake ........................................ 1

Open-End Wrench 17/19mm ...................... 1

B.

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

C.

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

D.

A

NOTICE

Put on safety glasses.

for 5–10 minutes.

Wipe off the surfaces. If your cleaner/degreas-

er is effective, the rust preventative will wipe

Figure 3. Pan and box brake.

Model T28522 (Mfd. Since 09/18)

B

C

D

Figure 4. Tools.

off the rest with the rag.

Repeat Steps 2–3 as necessary until clean,

metal protectant to prevent rust.

NOTICE

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

-11-

or disable start switch or

Refer to the Machine Data Sheet for the weight
and footprint specifications of your machine.
Some workbenches may require additional rein­forcement to support the weight of the machine
and workpiece materials.

Consider anticipated workpiece sizes and addi­tional space needed for auxiliary stands, work
tables, or other machinery when establishing a
location for this machine in the shop. Below is
the minimum amount of space needed for the

Cleaning Fingers

Site Considerations

Although rust preventative was applied only to
the visible surfaces of the clamping fingers (see
Figure 5), some may have worked in between and
underneath them. We recommend you remove all
clamping fingers and thoroughly clean them.

Clamping

Handle (1 of 2)

Clamping

Finger (1 of 5)

Figure 5. Location of clamping handle and

fingers.

To remove the clamping fingers, move clamping
handles (see
to raise the clamping leaf, then loosen the cap
screws and remove the clamping fingers and toe
clamps (see

Figure 5) toward back of machine

Figure 6).

Workbench Load

Placement Location

32"

111/2"

Clamping

Finger

Guide

Toe

Clamp

Clamping

Finger

Figure 6. Clamping finger components.

After all fingers have been cleaned, coat them
liberally with a metal protectant (see
and clean the finger guide on the clamping leaf.

Place the fingers along the guide on the clamp­ing leaf, align the toe clamps to catch the bottom
of the clamping leaf, and tighten the cap screws
enough so the fingers will not fall off. When done,
make sure fingers are properly aligned (refer to
Aligning Fingers on

-12-

Page 15).

Leaf

Screw

Cap

Page 19),

Figure 7. Minimum working clearances.

Children and visitors may be
seriously injured if unsuper­vised around this machine.
Lock entrances to the shop

power connection to prevent
unsupervised use.

Model T28522 (Mfd. Since 09/18)

Bench Mounting

Another option is a "direct mount" (see example
below) where the machine is secured directly to
the workbench with lag screws and washers.

The base of this machine has mounting holes
that allow it to be fastened to a workbench or
other mounting surface to prevent it from moving
during operation and causing accidental injury or
damage.

The strongest mounting option is a "Through
Mount" (see example below) where holes are
drilled all the way through the workbench—and
hex bolts, washers, and hex nuts are used to
secure the machine in place.

mounting hardware

Number of Mounting Holes
Diameter of Mounting Hardware Needed

Lifting heavy machinery or
parts without proper assis­tance or equipment may
result in strains, back inju­ries, crushing injuries, or
property damage.

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

..3⁄8"

Lag Screw

Flat Washer

Machine Base

Workbench

Figure 9. "Direct Mount" setup.

Hex

Machine Base

Workbench

Figure 8. "Through Mount" setup.

Bolt

Flat Washer

Flat Washer

Lock Washer

Hex Nut

Model T28522 (Mfd. Since 09/18)

-13-

SECTION 3: OPERATIONS

The purpose of this overview is to provide the nov­ice machine operator with a basic understanding
of how the machine is used during operation, so
the

discussed later

in this manual

Due to the generic nature of this overview, it is
not intended to be an instructional guide. To learn
more about specific operations, read this entire
manual,

training from experienced
machine operators
outside of this manual by reading "how-to" books,
trade magazines, or websites.

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

Operation Overview

machine controls/components

are easier to understand.

seek additional

, and do additional research

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

Examines workpiece to make sure it is suit-

1.

able for bending.

If required for the operation, adjusts clamping

2.

finger spacing.

Adjusts clamping pressure for workpiece

3.

thickness.

Correctly adjusts setback.

4.

5. Puts on safety glasses, leather boots, and

leather gloves.

Properly positions workpiece underneath

6.

clamping fingers and lowers clamping leaf to
secure workpiece.

using machine.

Bodily injury could result from using this
machine. Always wear safety glasses,
leather work boots, and heavy duty leather
work gloves when operating this machine
or whenever handling sheet metal.

With body square to brake and using both

7.

hands, raises bending leaf to form correct
bend angle.

Lowers bending leaf and removes workpiece.

8.

If you are not experienced with this type
of machine, WE STRONGLY RECOMMEND
that you seek additional training outside of
this manual. Read books/magazines or get
formal training before beginning any proj­ects. Regardless of the content in this sec­tion, Grizzly Industrial will not be held liable
for accidents caused by lack of training.

-14-

Model T28522 (Mfd. Since 09/18)

Spacing Fingers

The clamping fingers can be spaced apart for
clearance when making pans or boxes. This
requires removing one or more of the fingers, so
that you can space the others to match the inside
width of your pan or box.

Item(s) Needed: Qty

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

To space clamping fingers:

Loosen cap screws from each finger you

1.

need to remove.

Remove fingers and toe clamps from clamp-

2.

ing leaf, as shown in
aside.

Note: You may need to mix and match finger

widths to match the inside width of your pan
or box.

Figure 10, and set them

Aligning Fingers

aligning fingers

To help ensure the bend is even along its length,
the clamping fingers must be parallel with the
clamping surface and bending block.

Item(s) Needed: Qty

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

To align clamping fingers:

Lower clamping leaf until clamping fingers

1.

just touch clamping surface (see Figure

Look closely along bottom edge of each fin-

2.

ger to determine if any are out of alignment
with clamping surface and bending block, as
shown in Figure

Clamping

Surface

11.

This Finger is

Misaligned

11).

Figure 10. Example of finger spacing.

Align remaining fingers and tighten cap

3.

screws.

Bending

Block

Figure 11. Example of a misaligned clamping

finger.

3. Loosen cap screw on misaligned finger just

enough to move it up or down.

Align finger parallel with clamping surface

4.

and bending block, and then tighten cap
screw.

Model T28522 (Mfd. Since 09/18)

-15-

Adjusting Setback

adjusting setback

You must include the thickness of folded
edges or joints when determining the prop­er setback, or the brake may be damaged.

Before you begin any bending operation, consider
the differences of sheet metal gauges when try­ing to achieve either sharp or rounded bends, and
allow for the differences by adjusting the setback.

3. Loosen cap screws that secure setback
wheels (see Figure

13).

Setback Wheel

(1 of 2)

Cap Screw

(1 of 2)

Setback is the distance from the forward edge
of the fingers to the edge of the bending leaf,
as shown in Figure

12. The setback distance is

determined by the gauge of the workpiece mate­rial and the desired radius of the bend.

1

Setback is normally adjusted 1

⁄2 times the thick­ness of 22 gauge and thinner workpieces, and
two times the thickness of workpieces thicker than
22 gauge. (Refer to material gauge capacities on
the Machine Data Sheet on Page

5.)

Setback

1

1

/

x A

2

Bending

Leaf

Distance

Finger

A

Clamping

Bending

Block

Surface

Edge View

Figure 13. Location of setback wheel and cap

screw.

4. Rotate both setback wheels until desired set-

back distance is achieved.

Note: Setback wheels are eccentric. Turning

them one full turn will bring clamping leaf
back to its original position.

Tip: If you find it hard to turn setback wheels

with your fingers, insert a hex wrench into the
holes on edges of wheels to gain leverage.

. Lower clamping fingers onto clamping sur-

5

face and check setback distance.

. If necessary, repeat Steps 1–4 until desired

6

setback is achieved.

. Check finger alignment (refer to Aligning

7

Fingers on

Page 15).

Figure 12. Determining setback distance for

workpieces 22 gauge and thinner.

Item(s) Needed: Qty

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

To adjust setback:

1. Determine setback required for bend.

2. Raise clamping fingers about 1⁄2" off of clamp-

ing surface.

-16 -

Model T28522 (Mfd. Since 09/18)

Adjusting Clamping

Item(s) Needed: Qty

Open-End Wrench 17/19mm ............................. 1

Pressure

adjusting clamping pressure

Clamping pressure must be properly adjusted for
different workpiece thicknesses. The ideal pres­sure will have medium resistance at the clamping
handles, and will lock the workpiece into position
easily—much like a pair of Vice-Grips
is adjusted by rotating the adjustment nuts on
the clamping pressure adjustment rods (see
Figure 14). These are located on both ends of the
pan and box brake.

Clamping Pressure

Adjustment Rod

®

. Pressure

Clamping

Handle

Clamping

Handle Stop

(1 of 2)

To adjust clamping pressure:

Lower clamping leaf so clamping fingers just

1.

touch workpiece.

Tip: It is best if the workpiece used in this

procedure is same width as pan and box
brake. If not, place two pieces of metal of
same thickness as workpiece on each end of
brake.

— If clamping handles are at 10 o'clock

(viewed from right end of brake) and 2
o'clock (viewed from left end of brake) posi­tion, then clamping pressure is suitable for
workpiece. Proceed to

— If clamping handles are not at 10 o'clock

(viewed from right end of brake) and 2
o'clock (viewed from left end of brake) posi­tion, then clamping pressure is not suitable
for workpiece. Proceed to

Step 4.

Step 2.

Adjustment

Nuts (2 of 4)

Figure 14. Locations of clamping components.

2. Loosen adjustment nuts (see Figure 14)

and turn both sets up or down until clamping
handles are in 10 and 2 o'clock position when
clamping fingers just touch workpiece.

3. Tighten adjustment nuts to secure

position.

4. Make sure clamping pressure is even on both

ends of brake by raising one end and test­ing clamping action of other end. Clamping
action should be same on both ends.

If necessary, repeat Steps 1–4 until proper

5.

clamping pressure is achieved.

Note: Proper clamping pressure is achieved

when the clamping handle "snaps" (or
locks) into position against handle stop (see

Figure

14).

Model T28522 (Mfd. Since 09/18)

-17-

Basic Bending

Do not operate machine unless it has been
securely mounted to a workbench, or it
could tip over on you, causing severe injury!

Bodily injury could result from using this
machine. Always wear safety glasses,
leather work boots, and heavy duty leather
work gloves when operating this machine
or whenever handling sheet metal.

All bending operations require the clamping fin­gers to be parallel with the edge of the clamping
surface and bending block, and the setback and
clamping pressure must be correctly adjusted for
the thickness of the workpiece.

To perform basic bending operations:

5. With body square to brake and using both

hands, lift bending leaf until workpiece reach­es desired bend angle.

Raise clamping leaf and remove workpiece.

6.

Hold onto the workpiece so it does not drop
and hit you when it is released!

Bending Allowance

To bend metal objects accurately, you need to
consider the total length of each bend, especially
when more than one bend is required. This is
called bend allowance.

Subtract bend allowance from the sum of the
workpiece outside dimensions to obtain the over­all length and width of the blank needed to make
a particular part.

Exact allowances can only be obtained by trial
due to differences in sheet metal hardness,
whether the bend is with or across the grain, and
difficulties in making an exact bend radius. Bend
allowances accurate enough for average use may
be found in metalworking handbooks.

1. Determine setback required for bend (refer to

Adjusting Setback on

2. Raise clamping leaf.

Insert workpiece between clamping fingers

3.

and clamping surface.

4. Align bend mark(s) on workpiece with fingers

and clamp it in place using clamping handles.

Note: If clamping handles do not lock, the

clamping pressure may need to be adjusted
(refer to Adjusting Clamping Pressure on

17).

Page

-18-

Page 16).

Model T28522 (Mfd. Since 09/18)

SECTION 4: ACCESSORIES

Installing unapproved accessories may

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

Recommended Metal Protectants

G55
G5563—SLIPIT
G2870—Boeshield
G2871—Boeshield
H3788—G96
H3789—G96

recommended metal protectants

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.

T23692—Orange Power Degreaser

A great product for removing the rust-preventative
grease from your machine during clean up.

62—SLIPIT® 1 Qt. Gel

Figure 17. Recommended products for protecting

unpainted cast iron/steel parts on machinery.

®

12 Oz. Spray

®

T-9 4 Oz. Spray

®

®

Gun Treatment 12 Oz. Spray

®

Gun Treatment 4.5 Oz. Spray

T-9 12 Oz. Spray

Figure 15. T23692 Orange Power Degreaser.

T26685—Moly-D Machine Oil-ISO 32

Moly-D oils are some of the best we've found for
maintaining the critical components of machinery
because they tend to resist run-off and maintain
their lubricity under a variety of conditions.

Figure 16. Recommended product for machine

lubrication.

T26419—Syn-O-Gen Synthetic Grease

Formulated with 100% pure synthesized hydrocar­bon base stocks that are compounded with spe­cial thickeners and additives to make Syn-O-Gen
non-melt, tacky, and water resistant. Extremely
low pour point, extremely high temperature oxida­tion, and thermal stability produce a grease that is
unmatched in performance.

Figure 18. T26419 Syn-O-Gen Synthetic

Grease.

Model T28522 (Mfd. Since 09/18)

-19 -

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

T10456—Heavy-Duty Anti-Fatigue Mat 3' x 5'

This Heavy-Duty Anti-Fatigue Mat features bev­eled 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 19. T10456 Anti-Fatigue Mat.

T25208—23-Pc. Deburring Set

Includes: 380-0060 double burr; 2-pc. 380-0088
handle; 380-0097, 380-0098, and 380-0091 hold­ers; D25 and D40 scrapers; C20 countersink;
ES100 and ES200 blades (5 each); V13, and A13
blades; wrench and hex wrenches; case.

H5503—Electric Sheet Metal Shear

• Motor: 1⁄2 HP, 110V, 2500 RPM, 3.8 Amp

• Swivel head adjust 360°

• Variable speed: 0–2500 RPM

• Cuts up to 14 gauge in mild steel and 18
gauge in stainless, at up to 150 in./min.

• Weighs 5 lbs.

Figure 21. H5503 Electric Sheet Metal Shear.

G9947—Mini Sheet Metal Cutter

The Model G9947 will make quick work of cutting
sheet metal up to 16 gauge. Features an adjust­able roller for straight or curved cuts and an 11"
handle. Great for cutting wide sheets of metal!

Figure 20. T25208 Deburring Set.

Figure 22. G9947 Mini Sheet Metal Cutter.

-20-

Model T28522 (Mfd. Since 09/18)

SECTION 5: MAINTENANCE

Schedule

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

Ongoing

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

• Loose mounting bolts.

• Worn or damaged clamping fingers.
Any other unsafe condition.

•

Daily Maintenance

• Lubricate clamping leaf pivots.

• Lubricate bending leaf pivots.

Weekly Maintenance

• Lubricate clamping leaf guide pin slots.

Lubrication

Clamping Leaf Pivots

Oil Type .... Grizzly T26685 or ISO 32 Equivalent

Oil Amount
Lubrication Frequency

Use an oil can to add lubricant to the hole shown

Figure 23 (one on each side of the brake), then

in
raise and lower the clamping leaf several times to
distribute the lubricant.

Bending Leaf Oil

...........................................1–2 Drops

......... Daily, or As Needed

Clamping Leaf

Oil Hole (1 of 2)

Holes (2 of 4)

Cleaning &

Protecting

Use a brush to clear away any metal debris and
dust from the clamping fingers, clamping base,
and bending blocks.

Use a shop rag to carefully apply a thin coat of
quality metal protectant (see
from Grizzly) to all exposed unpainted surfaces to
prevent corrosion.

Page 19 for offerings

Clamping Leaf
Guide Pin Slot

(1 of 2)

Figure 23. Lubrication points.

Bending Leaf Pivots

Oil Type .... Grizzly T26685 or ISO 32 Equivalent

Oil Amount
Lubrication Frequency

Use an oil can to add lubricant to the holes shown

Figure 23 (two on each side of the brake), then

in
raise and lower the bending leaf several times to
distribute the lubricant.

...........................................1–2 Drops

......... Daily, or As Needed

Clamping Leaf Guide Pin Slots

Oil Type ... Grizzly T26419 or NLGI#2 Equivalent
Oil Amount
Lubrication Frequency

Apply a thin coat of grease to the guide pin slots
shown in

............................................Thin Coat

..... Weekly, or As Needed

Figure 23.

Model T28522 (Mfd. Since 09/18)

-21-

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

the

serial number and manufacture date of your machine before calling.

SECTION 6: SERVICE

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

Troubleshooting

Operations

Symptom Possible Cause Possible Solution

Heavy
resistance
during bends.

1. Machine capacities are exceeded.

2. Not enough setback.

1. Use sheet metal gauge/thickness size within machine

capacities (Page 5).

2. Properly calculate and adjust setback (Page 16).

Bend radius
not consistent
along
workpiece.

Workpiece
moves while
bending.

1. Clamping fingers not parallel with clamping
surface and bending block.

2. Bending block not flush with bending leaf.

3. Too much setback.

1. Clamping pressure not correctly adjusted. 1. Correctly adjust clamping pressure for workpiece

1. Properly align clamping fingers (Page 15).

2. Properly align bending block (Page 23).

3. Properly calculate and adjust setback (Page 16).

thickness (Page 17).

-22-

Model T28522 (Mfd. Since 09/18)

Aligning Bending

Block

Aligning Bending Block

To help ensure the bend is even along its length,
the bending block must be mounted flush with the
top of the bending leaf. The bending block is fac­tory-aligned and should only need re-alignment
after extended use.

Item(s) Needed: Qty

Open-End Wrench 17mm .................................. 1

To align bending block:

Look closely along tops of the bending block

1.

and bending leaf (see Figure 24) to deter­mine if they are out of alignment.

2. Loosen (4) hex bolts (see Figure 24) that

secure bending block to bending leaf just
enough to move it up or down.

Top of

Top of

Bending Block

Bending Leaf

Hex Bolt

(1 of 4)

Figure 24. Location of hex bolts for aligning

bending block.

3.

Align bending block flush with bending leaf,

and then tighten hex bolts.

Model T28522 (Mfd. Since 09/18)

-23-

26

SECTION 7: PARTS

REF P ART # DES CRIPTIO N REF P ART # DES CRIPTIO N

Main

23

1

25

12

10

12

13

2

14

28

2

3

18

24

5

12

13

28

2

9

1

18

19

24

9

7

6

20

17

14

13

15

22

15

24

11

24

23

13

10

12

21

44

2

9

8

6

18

19

18

34

35

36

4

5

1

9

1

27

1 PT28522001 HEX NUT M12-1.75 18 PT28522018 HEX NUT M10-1. 5
2 PT28522002 HANDLE GRI P 19 PT28522019 SWIVEL ROD BLOCK
3 PT28522003 HANDLE (LEFT) 20 PT28522020 TOE CLAMP M10-1.5
4 PT28522004 HANDLE (RI GHT) 21 PT28522021 STAND
5 PT28522005 BUSHI NG 22 PT28522022 BENDING LEAF
6 PT28522006 SHAFT SLEEVE 23 PT28522023 BENDING LEAF PI VOT SHAFT
7 PT28522007 SWIVEL ROD M10-1.5 (LEFT) 24 PT28522024 BUSHING
8 PT28522008 SWIVEL ROD M10-1.5 (RIGHT) 25 PT28522025 BENDING BLOCK
9 PT28522009 FLAT WASHER 12MM 26 PT28522026 HEX BOLT M10-1. 5 X 16
10 PT28522010 CAP SCREW M6-1 X 18 27 PT28522027 FLAT WASHER 10MM
11 PT28522011 CLAMPING LEAF 28 PT28522028 CAP SCREW M6-1 X 16
12 PT28522012 ROLL PIN 3 X 25 34 PT28522034 WRENCH 17 X 19MM OPEN-END
13 PT28522013 FLAT WASHER 12MM 35 PT28522035 HEX WRENCH 8MM
14 PT28522014 PIVOT SHAFT 36 PT28522036 HEX WRENCH 5MM
15 PT28522015 ECCENTRIC SHAFT 44 PT28522044 CLAMPING FI NGER SET
17 PT28522017 CAP SCREW M10-1.5 X 25

-24-

BUY PARTS ONLINE AT GRIZZLY. COM !

Scan QR code to visit our Parts Store.

Model T28522 (Mfd. Since 09/18)

We do our best to stock replacement parts when possible, but we cannot guarantee that all parts shown
are available for purchase. Call [phone] or visit www.grizzly.com/parts to check for availability.

WARNING!

To reduce risk of death
or serious injury, read
manual BEFORE using
machine.

To get a new manual,
call [phone] or
go to www.grizzly.com.

37

CRUSHING

HAZARD!

Keep hands and
fingers away from
clamping and bending
blocks while bending.

38

Labels & Cosmetics

MODEL T28522

24" PAN & BOX BRAKE

Specifications

Max. Workpiece Thickness: 20 Ga. (Mild Steel)
Max. Workpiece Width: 24"
Min. Reverse Bend: 3/8"
Max. Pan Depth: 2"
Bending Range: 0˚–135˚
Weight: 84 lbs.

Mfd. for Grizzly in China

Date

S/N

To reduce risk of serious personal injury when using:

1. Read and understand manual before using.

2. Always wear approved eye protection and leather gloves.

3. Mount machine to stable workbench or stand.

4. Chamfer and deburr sharp metal edges before bending.

5. Do not exceed rated capacity.

6. Do not use breaker bar to gain leverage.

7. Do not bend wire or nails.

8. Always keep hands and fingers away from clamping/bending
block before lowering clamping leaf or raising bending leaf.

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

10. Prevent unauthorized use by children or untrained users.

WARNING!

39

40

CAUTION

LACERATION

HAZARD!

Chamfer and deburr
sharp metal edges
before bending.

41

42

43

REF PART # DESCRIPTION REF PART # DESCRIPTION

37 PT28522037 READ MANUAL LABEL 41 PT28522041 LACERATION WARNING LABEL
38 PT28522038 CRUSHING WARNING LABEL 42 PT28522042 GRIZZLY DOMED LABEL
39 PT28522039 MACHINE ID LABEL 43 PT28522043 TOUCH-UP PAINT, GRIZZLY GREEN
40 PT28522040 SAFETY GLASSES LABEL

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

Model T28522 (Mfd. Since 09/18)

BUY PARTS ONLINE AT GRIZZLY. COM !

Scan QR code to visit our Parts Store.

-25-

WARRANTY CARD

Name _____________________________________________________________________________

Street _____________________________________________________________________________

City _______________________ State _________________________ Zip _____________________

Phone # ____________________ Email _________________________________________________

Model # ____________________ Order # _______________________ Serial # __________________

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

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

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

____ Cabinetmaker & FDM
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____ Journal of Light Cont.
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3. What is your annual household income?
____ $20,000-$29,000 ____ $30,000-$39,000 ____ $40,000-$49,000
____ $50,000-$59,000 ____ $60,000-$69,000 ____ $70,000+

CUT ALONG DOTTED LINE

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

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

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

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

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

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

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

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

10. Comments: _____________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

_________________________________________________________________________________

FOLD ALONG DOTTED LINE

FOLD ALONG DOTTED LINE

Place

Stamp

Here

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

Send a Grizzly Catalog to a friend:

Name_______________________________

Street_______________________________

City______________State______Zip______

TAPE ALONG EDGES--PLEASE DO NOT STAPLE

WARRANTY & RETURNS

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

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

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

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

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

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