Grizzly G7153 User Manual

UUNNIIVVEERRSSAALL BBEENNDDEERR

MMOODDEELL GG77115533

IINNSSTTRRUUCCTTIIOONN MMAANNUUAALL

COPYRIGHT © JANUARY, 1999 BY GRIZZLY INDUSTRIAL, INC.

WWAARRNNIINNGG:: NNOO PPOORRTTIIOONN OOFF TTHHIISS MMAANNUUAALL MMAAYY BBEE RREEPPRROODDUUCCEEDD IINN AANNYY SSHHAAPPEE

OORR FFOORRMM WWIITTHHOOUUTT TTHHEE WWRRIITTTTEENN AAPPPPRROOVVAALL OOFF GGRRIIZZZZLLYY IINNDDUUSSTTRRIIAALL,, IINNCC..

GRIZZLY ID # 404001623. REVISED JANUARY, 2003. PRINTED IN CHINA

ONLINE MANUAL DISCLAIMER

THE INFORMATION IN THIS MANUAL REPRESENTS THE CONFIGURATION OF THE MACHINE AS IT IS CURRENTLY BEING SHIPPED. THE

MACHINE CONFIGURATION CAN CHANGE AS PRODUCT IMPROVEMENTS ARE INCORPORATED. IF YOU OWN AN EARLIER VERSION OF THE

MACHINE, THIS MANUAL MAY NOT EXACTLY DEPICT YOUR MACHINE . CONTACT CUSTOMER SERVICE IF YOU HAVE ANY QUESTIONS

ABOUT DIFFERENCES. PREVIOUS VERSIONS ARE NOT AVAILABLE ONLINE.

G7153 Universal Bender -1-

IIMMPPOORRTTAANNTT SSAAFFEETTYY IINNFFOORRMMAATTIIOONN

88.. SSUUPPPPOORRTT TTHHEE WWOORRKKPPIIEECCEE

adequately
at all times during operation; maintain con­trol of the work at all times. Use clamps or
a vise to hold the work securely.

99.. DDOONN’’TT FFOORRCCEE TTOOOOLL

. It will do the job bet­ter and safer at the rate for which it was
designed.

1100.. UUSSEE RRIIGGHHTT TTOOOOLL..

Don’t force tool or
attachment to do a job for which it was not
designed.

1111.. UUSSEE RREECCOOMMMMEENNDDEEDD AACCCCEESSSSOORRIIEESS..
Consult the owner’s manual for recom­mended accessories. The use of improper
accessories may cause risk of injury.

1122.. CCHHEECCKK DDAAMMAAGGEEDD PPAARRTTSS..

Before further
use of the tool, a guard or other part that is
damaged should be carefully checked to
determine that it will operate properly and
perform its intended function.-Check for
alignment of moving parts, binding of mov­ing parts, breakage of parts, mounting, and
any other conditions that may affect its
operation. A guard or other part that is
damaged should be properly repaired or
replaced.

11.. AALLWWAAYYSS WWEEAARR EEYYEE PPRROOTTEECCTTIIOONN..

Use
safety approved lenses, everyday glasses
only have impact resistant lenses, they are
NOT safety glasses.

22.. WWEEAARR PPRROOPPEERR AAPPPPAARREELL

Do not wear
loose clothing, gloves, neckties, rings,
bracelets, or other jewelry which may get
caught in moving parts. Non-slip footwear is
recommended. Wear protective hair cover­ing to contain long hair.

33.. KKEEEEPP WWOORRKK AARREEAA CCLLEEAANN

. Cluttered

areas and benches invite accidents.

44.. KKEEEEPP CCHHIILLDDRREENN AANNDD VVIISSIITTOORRSS AAWWAAYY

.
All children and visitors should be kept a safe
distance from work area.

55.. MMAAKKEE WWOORRKK SSHHOOPP CCHHIILLDD PPRROOOOFF

with
padlocks, master switches, or by removing
starter keys.

66.. MMAAIINNTTAAIINN TTOOOOLLSS WWIITTHH CCAARREE..

Keep tools
sharp and clean for best and safest perfor­mance. Follow instructions for lubricating
and changing accessories.

77.. DDOONN’’TT OOVVEERRRREEAACCHH..

Keep proper footing

and balance at all times.

FFoorr YYoouurr OOwwnn SSaaffeettyy RReeaadd IInnssttrruuccttiioonn MMaannuuaall

BBeeffoorree OOppeerraattiinngg TThhiiss EEqquuiippmmeenntt

-2- G7153 Universal Bender

UUNNPPAACCKKIINNGG

The Model G7153 Heavy-Duty Universal Bender
is shipped from the manufacturer in a carefully
packed carton. If you discover the tool is dam­aged after you’ve signed for delivery,

please call

Customer Service immediately for advice.

Save the containers and all packing materials for
possible inspection by the carrier or its agent.

Otherwise filing a freight claim can be difficult.

When you are completely satisfied with the con­dition of your shipment, you should inventory its
parts.

Refer to the attached parts list and make certain
you have all the parts and dies included with this
bending tool. If any components are missing,
contact Customer Service.

In the event that any non-proprietary parts are
missing (e.g. a nut or a washer), we would be
glad to replace them, or, for the sake of expedi­ency, replacements can be obtained at your local
hardware store.

CCLLEEAANN UUPP

The cast iron and other unpainted parts of the
Model G7153 may be coated with a waxy oil that
protects them from corrosion during shipment.
Remove the protective coating with mineral spir­its and paper towels.

MMOOUUNNTTIINNGG

The G7153 Universal Bender must be securely
mounted to a solid surface before using.
Operating the tool for certain operations will
require exerting considerable force on the han­dle, thus it is essential that the tool be mounted to
a heavy or immovable work bench or other work
surface. Be certain there will be adequate clear­ance for the entire range of motion of the handle
with no potential pinch points for the operator’s
hands.

FFoollllooww tthhee ssaaffeettyy rruulleess lliisstteedd bbeellooww wwhheenn
wwoorrkkiinngg wwiitthh ssoollvveennttss::

11..

Read and follow all directions and warn­ings on the solvent label.

22..

Work only in a well ventilated area.

33..

Do not work near any type of open flame
(e.g., pilot lights, kerosene heaters, and
so on).

44.. DDOO NNOOTT

smoke while working with flam-

mable material.

55..

Paper towels from the cleaning process
are extremely combustible. Dispose of
waste towels so they do not create a fire
hazard.

SSeerriioouuss ppeerrssoonnaall iinnjjuurryy mmaayy

ooccccuurr..

Do not use gasoline or other petroleum based
solvents because of their extremely low flash
points. Do not use chlorine-based solvents – if
you happen to splash some onto a painted
surface, you’ll ruin the finish.

G7153 Universal Bender -3-

Grizzly Industrial, Inc. is proud to offer the Model
G7153 Heavy-Duty Universal Bender. The
G7153 is part of Grizzly’s growing family of fine
metalworking machinery. When used according
to the guidelines stated in this manual, you can
expect years of trouble-free, enjoyable operation.

The Model G7153 is intended for home and
medium duty professional use. The G7153 fea­tures cast iron construction for rigidity and
strength. This bender has a bending capacity of
28

1

⁄2 tons per square inch which can be used to
shape iron, steel, wrought iron, brass, copper and
aluminum.

MMaaxxiimmuumm CCaappaacciittiieess

for these various materials

are:

Steel & Iron

5

⁄8

" Round Stock

1

⁄2" x 1⁄2" Square Stock

1

3

⁄16" x 5⁄16" Strip Stock

Wrought Iron

15

⁄32" Round Stock

13

⁄32" x 13⁄32" Square Stock

1

3

⁄16" x 1⁄4" Strip Stock

Brass & Copper

5

⁄8" Round Stock

15

⁄32" x 15⁄32" Square Stock

1

3

⁄16" x 5⁄16" Strip Stock

Aluminum

23

⁄32" Round Stock

19

⁄32" x 19⁄32" Square Stock

1

3

⁄16" x 13⁄32" Strip Stock

We are also pleased to provide this manual with
the Model G7153. It was written to guide you
through assembly, review safety considerations,
and cover general operating procedures. It repre­sents our latest effort to produce the best docu­mentation possible. If you have any criticisms that
you feel we should address in our next printing,
please write to us at the Bellingham, WA address
at the end of this section.

GGEENNEERRAALL IINNFFOORRMMAATTIIOONN

Most important, we stand behind our tools. We
have an excellent service department at your dis­posal should the need arise. If you have any ser­vice questions or parts requests, please call or
write to us at the location listed below.

Grizzly Industrial, Inc.
1203 Lycoming Circle

Muncy, PA 17756

Phone:[phone]

Fax:[phone]

E-Mail: [e-mail]

Web Site: http://www.grizzlyimports.com

To comment on this manual write to:

Grizzly Industrial, Inc.

CC

⁄⁄

OO

Technical Documentation

P.O. Box 2069

Bellingham, WA 98227

To operate this, or any other tool safely and
efficiently, it is essential to become as familiar
with it as possible. The time you invest before
you begin to use your Model G7153 will be
time well spent.

DDOO NNOOTT

operate this tool until
you are completely familiar with the contents
of this manual.

-4- G7153 Universal Bender

OOPPEERRAATTIINNGG PPRROOCCEEDDUURREESS

Your tool is capable of many different types of
bending operations. Materials which can be
shaped include steel, iron, brass, wrought iron
and aluminum.

To determine how to properly set the tool up, you
first must determine what type of bending opera­tion you wish to perform. Round shapes, angles
or spiral operations are each described in the
following sections. The numbers in parentheses
relate to the reference number on the exploded
parts view on page 8.

When performing the bending operations, be
aware of the “spring-back” characteristic of cer­tain materials. This will require that you overbend
the material to a certain degree to end up with the
desired degree of bend. Different materials have
differing degrees of springback. Do a test bend to
determine how much “spring-back” you will need
to compensate for.

GGeenneerraall

11..

Make sure the Die Mounting Plate (4) is
attached to the Body. Refer to

FFiigguurree 11

for the

hole positions needed for Round Operations.

22..

Make sure the Stop (2) is loose.

33..

Move the Vise Assembly (5-9 & 15) to the rear
position on the arm of the Mounting Plate.

44..

Screw the Round Die Mounting Shaft (28) into
the Mounting Plate.

55

. Set the Round Die (29) onto the Mounting

Shaft.

66

. Move the Bending Block Assembly (16, 17,

22-24) back all of the way. You may have to
release the Bending Block Locking Plate (21)
by loosening the two Hex Key Bolts (20). Do
not secure the Locking Plate at this time.

RRoouunndd OOppeerraattiioonnss

77..

Set stock against the Round Die and close the
Vise so that it clamps the work securely
against the Die.

88..

Move the Bending Block in until it is up against
the work and its Face (16) is even with the
Vise Face (8). Secure the Bending Block by
tightening the two Bolts.

99..

Move the Bending Block to the left with the
Handle (27) until you have achieved your
desired angle bend, remembering to account
for “spring-back”.

1100..

If you wish to do repeat bends at the same
arc, tighten the Stop at the point where you
finished making your bend and tighten it.

1111..

When you wish to do complete 360° rings,
make sure you clamp the very end of your
workpiece in-between the Vise and the Die.
Bend your stock all the of the way around, and
cut off the excess.

1122..

To make springs, loosen the Stop (2), and lift
the stock to be formed slightly as you bend the
stock around the Die. When starting and fin­ishing the spring, make a complete 360° ring
as described in Step #11.

FFiigguurree 11..

Die Mounting Plate Hole Location
(A) Insert Round Die Mounting Shaft here
(B) Insert Hex Key Bolts here
(C) Insert Angle Die Spring here
(D) Insert Angle Die Hex Bolt here

G7153 Universal Bender -5-

11..

Make sure the Die Mounting Plate (4) is
attached to the Body. Refer to

FFiigguurree 11

for the

hole positions needed for Angle Operations.

22..

Make sure the Stop (2) is loose.

33..

Move the Vise Assembly (5-9 & 15) to the for­ward position on the arm of the Mounting
Plate.

44..

Place the Angle Die’s (13) Spring Pin (19) into
the Mounting Plate’s small unthreaded hole.

55..

Attach the Angle Die by screwing the Hex Key
Bolt (18) into the small threaded hole of the
Mounting Plate.

66..

Move the Bending Block Asembly (16, 17, 22-

24) back all of the way. You may have to
release the Bending Block Locking Plate (21)
by loosening the two Hex Key bolts (20). Do
not secure the Locking Plate at this time.

77..

Set the stock against the Angle Die and close
the Vise so that it clamps the work securely
against the Die.

88..

Move the Bending Block until it is up against
the work and its Face (16) is even with the
Vise Face (8).

99..

Move the Bending Block to the left with the
Handle (27) until you have achieved the your
desired angle bend. Remember to account for
“spring-back”.

1100..

To make repeat bends at 90°, use the Angle
Gauge Assembly (10-12). Screw the Gauge
Shaft (10) into the Angle Die. Slide the Gauge
Stop (11) onto the Shaft to the desired posi­tion (depending upon the length of your work).
This will “stop” the bend at the proper location.

1111..

If you wish to do repeat bends at the same
angle (other than 90°), use the Stop (2).

AAnnggllee OOppeerraattiioonnss

SSppiirraall OOppeerraattiioonnss

11..

Remove the Die Mounting Plate (4) by remov­ing the two Hex Key Bolts (4). Loosen the
Stop (2).

22..

Retract the Bending Block Assembly (16, 17
22-24) all of the way. Remove the Face Plate
(16) by unscrewing the associated Hex Key

Bolt (17). This will reveal the Bending Block
Wheel (22).

FFoorr sstteeppss 33,, 44,, && 88,, sseeee FFiigguurree 22..

33..

Attach the Spring Forming Mounting Disc (32)
with two Hex Key Bolts (in position1).

44..

Place the Spring Pin (25) of the Spring Forming

Die “A” (31) into the hole 3 and attach the long
Hex Key Bolt (26) in position 2.

FFoorr sstteeppss 55 && 77,, sseeee FFiigguurree 33..

55..

Insert the stock to be bent into the hole of Die
“A”.

66..

Move the Bending Block Assembly forward
until it contacts the stock and tighten it in posi­tion.

77..

Bend the stock until the portion being formed
is about at the Pin (marked with a “P” in the
figure).

88..

Now put the Spring Pins (25) of Spring
Forming Die “B” (30) into holes 4 & 5.

99..

Finish your bend by wrapping completely
around the Forming Dies.

FFiigguurree 22

Spring Form Mounting Disc

FFiigguurree 33

Spring Forming Die

-6- G7153 Universal Bender

G7153 Universal Bender Exploded Parts View

G7153 Universal Bender -7-

RREEFF QQTTYY DDEESSCCRRIIPPTTIIOONN

11BASE
21STOP
31BODY
41DIE MOUNTING PLATE
51VISE DRIVE SCREW
61VISE HANDLE
71VISE BASE
81VISE FACE
92HEX KEY BOLT
10 1 GAUGE STOP
11 1 GAUGE SHAFT
12 1 GAUGE LOCKING SCREW
13 1 ANGLE DIE
14 2 HEX KEY BOLT
15 1 SET SCREW
16 1 BENDING BLOCK FACE PLATE
17 1 HEX KEY BOLT
18 1 HEX KEY BOLT
19 1 SPRING PIN
20 2 HEX KEY BOLT
21 1 BENDING BLOCK LOCKING

PLATE
22 1 BENDING BLOCK WHEEL
23 1 BENDING BLOCK SHAFT
24 1 BENDING BLOCK
25 3 SPRING PIN
26 1 HEX KEY BOLT
27 1 HANDLE
28 1 ROUND DIE MOUNTING SHAFT
29 1 ROUND DIE
30 1 SPRING FORMING DIE “B”
31 1 SPRING FORMING DIE “A”
32 1 SPRING FORMING DIE

-8- G7153 Universal Bender

If you need parts or help in assembling your
machine, or if you need operational information,
we encourage you to call our Service
Department. Our trained service technicians will
be glad to help you.

If you have comments dealing specifically with
this manual, please write to our Bellingham,
Washington location using the address in the
Introduction. The specifications, drawings, and
photographs illustrated in this manual represent
the Model G7153 as supplied when the manual
was prepared. However, due to Grizzly’s policy of
continuous improvement, changes may be made
at any time with no obligation on the part of
Grizzly. Whenever possible, though, we send
manual updates to all owners of a particular tool
or machine. Should you receive one, add the new
information to this manual and keep it for refer­ence.

We recommend you keep a copy of our current
catalog for complete information regarding
Grizzly's warranty and return policy. If you need
additional technical information relating to this
machine, or if you need general assistance or
replacement parts, please contact the Service
Department listed in

Section 3: General

Information.

Additional information sources are necessary to
realize the full potential of this machine. Trade
journals, woodworking magazines, and your local
library are good places to start.

CCLLOOSSUURREE

As with all tools, there is danger associated
with the Model G17153 Universal Bender. Use
the tool with respect and caution to lessen the
possibility of mechanical damage or operator
injury. If normal safety precautions are over­looked or ignored, injury to the operator or oth­ers in the area is likely.

SSeerriioouuss ppeerrssoonnaall iinnjjuurryy

mmaayy ooccccuurr..

We have included some important safety
measures that are essential to this machine’s
operation. While most safety measures are
generally universal, Grizzly reminds you that
each workshop is different and safety rules
should be considered

as they apply to your

specific situation.

The Model G7153 was specifically designed for
metal bending operations.

DDOO NNOOTT MMOODDIIFFYY
AANNDD//OORR UUSSEE TTHHIISS BBEENNDDEERR FFOORR AANNYY OOTTHHEERR
PPUURRPPOOSSEE.. MMooddiiffiiccaattiioonnss oorr iimmpprrooppeerr uussee ooff tthhiiss
ttooooll wwiillll vvooiidd tthhee wwaarrrraannttyy..

If you are confused

about any aspect of this machine,

DDOO NNOOTT

use it

until you have answered all your questions.

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.

WARRANTY AND RETURNS

Buy Direct and Save with Grizzly® – Trusted, Proven and a Great Value!

Visit Our Website Today And Discover Why

Grizzly® Is The Industry Leader!

• SECURE ORDERING

• ORDERS SHIPPED WITHIN 24 HOURS

• E-MAIL RESPONSE WITHIN ONE HOUR

-OR-

Call Today For A

Full Color Catalog

FREE