Grizzly Blender G7153 User Manual

UNIVERSAL BENDER  
MODEL G7153  
INSTRUCTION MANUAL  
COPYRIGHT © JANUARY, 1999 BY GRIZZLY INDUSTRIAL, INC.  
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE  
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.  
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.  
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UNPACKING  
CLEAN UP  
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 spir-  
its and paper towels.  
The Model G7153 Heavy-Duty Universal Bender  
is shipped from the manufacturer in a carefully  
packed carton. If you discover the tool is dam-  
aged 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.  
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.  
When you are completely satisfied with the con-  
dition 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.  
Follow the safety rules listed below when  
working with solvents:  
1.  
Read and follow all directions and warn-  
ings on the solvent label.  
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 expedi-  
ency, replacements can be obtained at your local  
hardware store.  
2.  
3.  
Work only in a well ventilated area.  
Do not work near any type of open flame  
(e.g., pilot lights, kerosene heaters, and  
so on).  
4. DO NOT  
smoke while working with flam-  
mable material.  
5.  
Paper towels from the cleaning process  
are extremely combustible. Dispose of  
waste towels so they do not create a fire  
Serious personal injury may  
hazard.  
occur.  
MOUNTING  
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 han-  
dle, 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 clear-  
ance for the entire range of motion of the handle  
with no potential pinch points for the operator’s  
hands.  
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G7153 Universal Bender  
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GENERAL INFORMATION  
Grizzly Industrial, Inc. is proud to offer the Model  
Most important, we stand behind our tools. We  
have an excellent service department at your dis-  
posal should the need arise. If you have any ser-  
vice questions or parts requests, please call or  
write to us at the location listed below.  
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.  
Grizzly Industrial, Inc.  
1203 Lycoming Circle  
Muncy, PA 17756  
Phone:(717) 326-3806  
Fax:(800) 438-5901  
The Model G7153 is intended for home and  
medium duty professional use. The G7153 fea-  
tures cast iron construction for rigidity and  
strength. This bender has a bending capacity of  
2812 tons per square inch which can be used to  
shape iron, steel, wrought iron, brass, copper and  
aluminum.  
To comment on this manual write to:  
Maximum Capacities  
are:  
for these various materials  
Grizzly Industrial, Inc.  
Technical Documentation  
P.O. Box 2069  
C
O
5
Steel & Iron  
Wrought Iron  
Brass & Copper  
Aluminum  
8" Round Stock  
1
2" x 12" Square Stock  
Bellingham, WA 98227  
1316" x 516" Strip Stock  
1532" Round Stock  
1332" x 1332" Square Stock  
1316" x 14" Strip Stock  
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  
5
8" Round Stock  
1532" x 1532" Square Stock  
1316" x 516" Strip Stock  
DO NOT  
time well spent.  
operate this tool until  
you are completely familiar with the contents  
of this manual.  
2332" Round Stock  
1932" x 1932" Square Stock  
1316" x 1332" 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 repre-  
sents our latest effort to produce the best docu-  
mentation 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.  
G7153 Universal Bender  
-3-  
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OPERATING PROCEDURES  
7.  
Set stock against the Round Die and close the  
Vise so that it clamps the work securely  
against the Die.  
General  
8.  
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.  
Your tool is capable of many different types of  
bending operations. Materials which can be  
shaped include steel, iron, brass, wrought iron  
and aluminum.  
9.  
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”.  
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.  
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.  
To determine how to properly set the tool up, you  
first must determine what type of bending opera-  
tion 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.  
10.  
11.  
When performing the bending operations, be  
aware of the “spring-back” characteristic of cer-  
tain 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.  
12.  
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 fin-  
ishing the spring, make a complete 360° ring  
as described in Step #11.  
Round Operations  
1.  
Make sure the Die Mounting Plate (4) is  
Figure 1  
attached to the Body. Refer to  
for the  
hole positions needed for Round Operations.  
2.  
3.  
Make sure the Stop (2) is loose.  
Move the Vise Assembly (5-9 & 15) to the rear  
position on the arm of the Mounting Plate.  
4.  
Screw the Round Die Mounting Shaft (28) into  
the Mounting Plate.  
5
6
. Set the Round Die (29) onto the Mounting  
Shaft.  
. 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.  
Figure 1.  
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  
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G7153 Universal Bender  
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Bolt (17). This will reveal the Bending Block  
Wheel (22).  
Angle Operations  
For steps 3, 4, & 8, see Figure 2.  
3.  
Attach the Spring Forming Mounting Disc (32)  
with two Hex Key Bolts (in position1).  
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.  
1.  
Make sure the Die Mounting Plate (4) is  
Figure 1  
attached to the Body. Refer to  
for the  
4.  
hole positions needed for Angle Operations.  
2.  
3.  
Make sure the Stop (2) is loose.  
For steps 5 & 7, see Figure 3.  
5.  
Move the Vise Assembly (5-9 & 15) to the for-  
ward position on the arm of the Mounting  
Plate.  
Insert the stock to be bent into the hole of Die  
“A”.  
6.  
Move the Bending Block Assembly forward  
until it contacts the stock and tighten it in posi-  
tion.  
Bend the stock until the portion being formed  
is about at the Pin (marked with a “P” in the  
figure).  
Now put the Spring Pins (25) of Spring  
Forming Die “B” (30) into holes 4 & 5.  
Finish your bend by wrapping completely  
around the Forming Dies.  
4.  
5.  
Place the Angle Die’s (13) Spring Pin (19) into  
the Mounting Plate’s small unthreaded hole.  
Attach the Angle Die by screwing the Hex Key  
Bolt (18) into the small threaded hole of the  
Mounting Plate.  
7.  
6.  
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.  
8.  
9.  
7.  
8.  
9.  
Set the stock against the Angle Die and close  
the Vise so that it clamps the work securely  
against the Die.  
Move the Bending Block until it is up against  
the work and its Face (16) is even with the  
Vise Face (8).  
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”.  
10.  
11.  
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 posi-  
tion (depending upon the length of your work).  
This will “stop” the bend at the proper location.  
Figure 2  
Spring Form Mounting Disc  
If you wish to do repeat bends at the same  
angle (other than 90°), use the Stop (2).  
Spiral Operations  
1.  
2.  
Remove the Die Mounting Plate (4) by remov-  
ing the two Hex Key Bolts (4). Loosen the  
Stop (2).  
Retract the Bending Block Assembly (16, 17  
22-24) all of the way. Remove the Face Plate  
(16) by unscrewing the associated Hex Key  
Figure 3  
Spring Forming Die  
G7153 Universal Bender  
-5-  
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G7153 Universal Bender Exploded Parts View  
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G7153 Universal Bender  
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REF  
QTY  
DESCRIPTION  
1
2
3
4
5
6
7
8
1
1
1
1
1
1
1
1
2
1
1
1
1
2
1
1
1
1
1
2
1
BASE  
STOP  
BODY  
DIE MOUNTING PLATE  
VISE DRIVE SCREW  
VISE HANDLE  
VISE BASE  
VISE FACE  
HEX KEY BOLT  
GAUGE STOP  
GAUGE SHAFT  
GAUGE LOCKING SCREW  
ANGLE DIE  
HEX KEY BOLT  
SET SCREW  
BENDING BLOCK FACE PLATE  
HEX KEY BOLT  
HEX KEY BOLT  
SPRING PIN  
HEX KEY BOLT  
9
10  
11  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
BENDING BLOCK LOCKING  
PLATE  
22  
23  
24  
25  
26  
27  
28  
29  
30  
31  
32  
1
1
1
3
1
1
1
1
1
1
1
BENDING BLOCK WHEEL  
BENDING BLOCK SHAFT  
BENDING BLOCK  
SPRING PIN  
HEX KEY BOLT  
HANDLE  
ROUND DIE MOUNTING SHAFT  
ROUND DIE  
SPRING FORMING DIE “B”  
SPRING FORMING DIE “A”  
SPRING FORMING DIE  
G7153 Universal Bender  
-7-  
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CLOSURE  
If you need parts or help in assembling your  
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.  
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 refer-  
ence.  
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.  
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 over-  
looked or ignored, injury to the operator or oth-  
Serious personal injury  
ers in the area is likely.  
may occur.  
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  
DO NOT MODIFY  
metal bending operations.  
AND/OR USE THIS BENDER FOR ANY OTHER  
PURPOSE. Modifications or improper use of this  
tool will void the warranty.  
If you are confused  
DO NOT  
about any aspect of this machine,  
use it  
until you have answered all your questions.  
-8-  
G7153 Universal Bender  
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WARRANTY AND 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 par-  
ticular 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, spe-  
cial, 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 car-  
ton. We will not accept any item back without this number. Proof of purchase must accompany the mer-  
chandise.  
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.  
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