MODEL G0792
HEAVY-DUTY RING ROLL PIPE BENDER
OWNER'S MANUAL
(For models manufactured since 12/15)
COPYRIGHT © NOVEMBER, 2015 BY GRIZZLY INDUSTRIAL, INC., REVISED MARCH, 2016 (MN)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#WK17572 PRINTED IN CHINA
V3.03.16
This manual provides critical safety instructions on the proper setup,
operation, maintenance, and service of this machine/tool. Save this
document, refer to it often, and use it to instruct other operators.
Failure to read, understand and follow the instructions in this manual
may result in fire or serious personal injury—including amputation,
electrocution, or death.
The owner of this machine/tool is solely responsible for its safe use.
This responsibility includes but is not limited to proper installation in
a safe environment, personnel training and usage authorization,
proper inspection and maintenance, manual availability and comprehension, application of safety devices, cutting/sanding/grinding tool
integrity, and the usage of personal protective equipment.
The manufacturer will not be held liable for injury or property damage
from negligence, improper training, machine modifications or misuse.
Some dust created by power sanding, sawing, grinding, drilling, and
other construction activities contains chemicals known to the State
of California to cause cancer, birth defects or other reproductive
harm. Some examples of these chemicals are:
• Lead from lead-based paints.
• Crystalline silica from bricks, cement and other masonry products.
• Arsenic and chromium from chemically-treated lumber.
Your risk from these exposures varies, depending on how often you
do this type of work. To reduce your exposure to these chemicals:
Work in a well ventilated area, and work with approved safety equipment, such as those dust masks that are specially designed to filter
out microscopic particles.
Table of Contents
INTRODUCTION ............................................................................................................................... 2
Contact Info ................................................................................................................................ 2
Manual Accuracy ........................................................................................................................ 2
Identification ............................................................................................................................... 3
Controls & Components ............................................................................................................. 4
Machine Data Sheet ................................................................................................................... 5
SECTION 1: SAFETY ....................................................................................................................... 6
Safety Instructions for Machinery ............................................................................................... 6
Additional Safety for Ring Roll Benders ..................................................................................... 8
SECTION 2: POWER SUPPLY ........................................................................................................ 9
SECTION 3: SETUP ....................................................................................................................... 11
Unpacking ................................................................................................................................ 11
Needed for Setup ..................................................................................................................... 11
Inventory ................................................................................................................................... 11
Cleanup .................................................................................................................................... 12
Site Considerations .................................................................................................................. 13
Assembly .................................................................................................................................. 14
Lifting & Placing ....................................................................................................................... 14
Anchoring to Floor .................................................................................................................... 15
Test Run ................................................................................................................................... 16
SECTION 4: OPERATIONS ........................................................................................................... 17
Operation Overview.................................................................................................................. 17
Rolling Arcs .............................................................................................................................. 18
Rolling Compound Arcs ........................................................................................................... 20
SECTION 5: ACCESSORIES ......................................................................................................... 22
SECTION 6: MAINTENANCE......................................................................................................... 23
Schedule .................................................................................................................................. 23
Cleaning & Protecting .............................................................................................................. 23
Lubrication ................................................................................................................................ 23
SECTION 7: SERVICE ................................................................................................................... 25
Troubleshooting ........................................................................................................................ 25
SECTION 8: WIRING ...................................................................................................................... 27
Wiring Safety Instructions ........................................................................................................ 27
Electrical Components ............................................................................................................. 28
Electrical Panel Wiring Diagram ............................................................................................... 29
Motor Diagram.......................................................................................................................... 30
Foot Pedal & E-Stop Diagram .................................................................................................. 30
SECTION 9: PARTS ....................................................................................................................... 31
Main .......................................................................................................................................... 31
Electrical Panel......................................................................................................................... 33
Labels & Cosmetics ................................................................................................................. 34
WARRANTY & RETURNS ............................................................................................................. 37
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: manuals@grizzly.com
We are proud to provide a high-quality owner’s
manual with your new machine!
We
instructions, specifications, drawings, and photographs
in this manual. Sometimes we make mistakes, but
our policy of continuous improvement also means
that
you receive is
slightly different than shown in the manual
If you find this to be the case, and the difference
between the manual and machine leaves you
confused or unsure about something
check our
website for an updated version. W
current
manuals and
on our web-
site at
Alternatively, you can call our Technical Support
for help. Before calling, make sure you write down
the
from
the machine ID label (see below). This information
is required for us to provide proper tech support,
and it helps us determine if updated documentation is available for your machine.
INTRODUCTION
Contact Info
and manufacture date from the
Grizzly Technical Support
1815 W. Battlefield
Springfield, MO 65807
Phone: (570) 546-9663
Email: techsupport@grizzly.com
Grizzly Documentation Manager
P.O. Box 2069
Bellingham, WA 98227-2069
Manual Accuracy
made every effort to be exact with the
sometimes the machine
.
,
e post
manual updates for free
www.grizzly.com.
Manufacture Date and Serial Number
Manufacture Date
Serial Number
-2-
Model G0792 (Mfd. Since 12/15)
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.
Emergency Stop/
RESET Buttons
Control
Pedestal
Lower
Rollers
Upper
Roller
Guide Rollers
Upper Roller
Crank Handle
Headstock
Main Power
Switch
Left Roller
Feed Control
Right Roller
Feed Control
Model G0792 (Mfd. Since 12/15)
Power ON
Button
using machine.
Electrical Panel
Access Door
-3-
Controls &
To reduce your risk of
serious injury, read this
entire manual BEFORE
E. Guide Rollers (2): Used to correct or create a
twist in workpiece.
Components
using machine.
Refer to Figures 1 & 2 and the following 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 stay safe
when operating this machine.
A B C D
E
F
F. Guide Roller Adjustment Bolts (4): Rotate
to adjust guide roller positions.
G. Headstock: Houses motor, drive gears, and
bending components (B–E). Can be adjusted
to vertical or horizontal bending positions.
H
I
J
Figure 2. Lower controls and components.
K L
G
Figure 1. Upper controls and components.
A. Emergency Stop/RESET Buttons (2): Stop
all machine functions when pressed. Twist
clockwise to reset.
B. Lower Rollers (2): Rotate to feed workpiece
through headstock.
C. Upper Roller: Presses workpiece against
lower rollers to create bend. Adjusts toward
or away from lower rollers depending on
workpiece dimensions and desired radius.
H. Control Pedestal: Allows user to control
machine while standing away from moving
parts and workpiece.
I. Foot Pedal Feed Controls: When pressed,
cause rollers to feed workpiece to left or right
(as viewed when facing front of machine).
When released, rollers stop.
J. Main Power Switch: Tog g l es incoming
power ON or OFF.
K. Power ON Button: Enables power to machine
components. Illuminates when energized.
L. Electrical Panel Access Door: Opens for
access to electrical panel.
D. Upper Roller Crank Handle: Adjusts posi-
tion of upper roller relative to lower rollers.
Moving upper roller closer to lower rollers
increases bend in workpiece.
-4-
Model G0792 (Mfd. Since 12/15)
MODEL G0792 HEAVY-DUTY RING ROLL PIPE BENDER
Product Dimensions:
Weight ........................................................................................................................................................................... 583 lbs.
Width (side-to-side) x Depth (front-to-back) x Height ....................................................................................... 29 x 40 x 51 in.
Foot Print (Length/Width) .....................................................................................................................................40 x 24-1/2 in.
Shipping Dimensions:
Type ........................................................................................................................................................................ Wood Crate
Weight ............................................................................................................................................................................ 626 lbs.
Length/Width/Height ...........................................................................................................................................44 x 27 x 48 in.
Electrical:
Power Requirement ........................................................................................................................ 220V, Single-Phase, 60 Hz
Prewired Voltage ................................................................................................................................................................ 220V
Full-Load Current Rating ..................................................................................................................................................... 8.6A
Minimum Circuit Size ........................................................................................................................................................... 15A
Connection Type ..................................................................................................................................................... Cord & Plug
Power Cord Included ............................................................................................................................................................Yes
Power Cord Length ........................................................................................................................................................ 6-1/2 ft.
Power Cord Gauge ....................................................................................................................................................... 14 AWG
Plug Included ......................................................................................................................................................................... No
Recommended Plug Type ...................................................................................................................................................6-15
Switch Type ...............................................................................................................................................Push Button, E-Stop
Switch Voltage ................................................................................................................................................................... 220V
Motor:
Type ......................................................................................................................................... TEFC Capacitor-Start Induction
Horsepower .........................................................................................................................................................................2 HP
Phase .................................................................................................................................................................... Single-Phase
Amps ................................................................................................................................................................................... 8.6A
Speed .........................................................................................................................................................................1720 RPM
Power Transfer ......................................................................................................................................................... Gear Drive
Bearings ............................................................................................................................. Shielded & Permanently Lubricated
Main Specifications:
Capacities
Square Mild Steel .................................................................................................................... 1-9/16 x 1-9/16 x 1/16 in.
C-Channel Mild Steel ..................................................................................................................................2 x 1 x 1/8 in.
Operation Information
Minimum Outer Radius .......................................................................................................................................11-3/4 in.
Maximum Bending Speed ................................................................................................................................. 14.8 FPM
No. of Driven Rolls ..........................................................................................................................................................2
Control Method ......................................................................................................................................................Electric
Vertical Travel of Upper Shaft ..............................................................................................................................3-1/2 in.
Model G0792 (Mfd. Since 12/15)
-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.
This symbol is used to alert the user to useful information about
NOTICE
proper operation of the machine.
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 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 G0792 (Mfd. Since 12/15)
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 (570) 546-9663.
Model G0792 (Mfd. Since 12/15)
-7-
Additional Safety for Ring Roll Benders
Serious injury or death can occur from fingers, clothing, jewelry, or hair becoming entangled/
crushed in rotating or moving parts. Workpieces not seated properly on rollers can fall and
cause crushing injury to feet. To minimize risk of injury, anyone operating this machine MUST
completely heed hazards and warnings below.
AVOIDING ENTANGLEMENT. Becoming entan-
gled in moving parts of this machine can cause
pinching and crushing injuries. To avoid these
hazards, DO NOT wear loose clothing, gloves, or
jewelry, and tie back long hair.
HAND PLACEMENT. Holding workpiece too
close to rollers during operation increases risk
of pinching and crushing injuries. To reduce your
risk, keep hands away from rollers during operation. NEVER place hands and fingers near rollers
during operation.
FOOT PROTECTION. Heavy workpieces accidentally falling off of rollers during operation can
cause crushing injuries to the feet of operator.
To reduce your risk, wear steel-toed boots when
using machine.
FEEDING WORKPIECE. Forcefully jamming
workpiece through rollers could cause hands or
fingers to slip and get caught in moving parts,
causing pinching and crushing injuries. Only
advance workpiece using foot pedals. DO NOT
use hands to force workpiece through rollers.
USING CORRECT STOCK FOR OPERATION.
Using incompatible stock with installed rollers
can cause it to be ejected from machine during
operation, causing personal injury or damaging
workpiece or machine. Only bend material that is
compatible with installed rollers.
-8-
Model G0792 (Mfd. Since 12/15)
SECTION 2: POWER SUPPLY
Before installing the machine, consider the availability and proximity of the required power supply
circuit. If an existing circuit does not meet the
requirements for this machine, a new circuit must
be installed. To minimize the risk of electrocution,
fire, or equipment damage, installation work and
electrical wiring must be done by an electrician or
qualified service personnel in accordance with all
applicable codes and standards.
Electrocution, fire, or
equipment damage may
occur if machine is not
correctly grounded and
connected to the power
The full-load current rating is the amperage a
machine draws at 100% of the rated output power.
On machines with multiple motors, this is the
amperage drawn by the largest motor or sum of all
motors and electrical devices that might operate
at one time during normal operations.
The full-load current is not the maximum amount
of amps that the machine will draw. If the machine
is overloaded, it will draw additional amps beyond
the full-load rating.
If the machine is overloaded for a sufficient length
of time, damage, overheating, or fire may result—
especially if connected to an undersized circuit.
To reduce the risk of these hazards, avoid overloading the machine during operation and make
sure it is connected to a power supply circuit that
meets the specified circuit requirements.
For your own safety and protection of
Note: Circuit requirements in this manual apply to
a dedicated circuit—where only one machine will
be running on the circuit at a time. If machine will
be connected to a shared circuit where multiple
machines may be running at the same time, consult an electrician or qualified service personnel to
ensure circuit is properly sized for safe operation.
A power supply circuit includes all electrical
equipment between the breaker box or fuse panel
in the building and the machine. The power supply circuit used for this machine must be sized to
safely handle the full-load current drawn from the
machine for an extended period of time. (If this
machine is connected to a circuit protected by
fuses, use a time delay fuse marked D.)
This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following requirements:
Availability
supply.
Full-Load Current Rating
Circuit Information
property, consult an electrician if you are
unsure about wiring practices or electrical
codes in your area.
Full-Load Current Rating at 220V .... 8.6 Amps
Model G0792 (Mfd. Since 12/15)
Circuit Requirements
Nominal Voltage .........208V, 220V, 230V, 24 0V
Cycle ..........................................................60 Hz
Phase ........................................... Single-Phase
Power Supply Circuit ......................... 15 Amps
Plug/Receptacle ............................. NEMA 6 -15
-9-
Improper connection of the equipment-grounding
wire can result in a risk of electric shock. The
wire with green insulation (with or without yellow
stripes) is the equipment-grounding wire. If repair
or replacement of the power cord or plug is necessary, do not connect the equipment-grounding
wire to a live (current carrying) terminal.
Check with a qualified electrician or service personnel if you do not understand these grounding
requirements, or if you are in doubt about whether
the tool is properly grounded. If you ever notice
that a cord or plug is damaged or worn, disconnect it from power, and immediately replace it with
a new one.
We do not recommend using an extension cord
with this machine.
cord, only use it if absolutely necessary and only
on a temporary basis.
Extension cords cause voltage drop, which can
damage electrical components and shorten motor
life. Voltage drop increases as the extension cord
size gets longer and the gauge size gets smaller
(higher gauge numbers indicate smaller sizes).
Any extension cord used with this machine must
be in good condition and contain a ground wire
and matching plug/receptacle. Additionally, it must
meet the following size requirements:
Grounding Requirements
This machine MUST be grounded. In the event
of certain malfunctions or breakdowns, grounding
reduces the risk of electric shock by providing a
path of least resistance for electric current.
This machine is equipped with a power cord that
has an equipment-grounding wire and a grounding
plug. Only insert plug into a matching receptacle
(outlet) that is properly installed and grounded in
accordance with all local codes and ordinances.
DO NOT modify the provided plug!
No adapter should be used with plug. If
plug does not fit available receptacle, or if
GROUNDED
6-15 RECEPTACLE
Current Carrying Prongs
6-15 PLUG
Serious injury could occur if you connect
machine to power before completing setup
process. DO NOT connect to power until
instructed later in this manual.
Grounding Prong
Figure 3. Typical 6-15 plug and receptacle.
machine must be reconnected for use on a
different type of circuit, reconnection must
be performed by an electrician or qualified
service personnel, and it must comply with
all local codes and ordinances.
-10 -
Extension Cords
If you must use an extension
Minimum Gauge Size ...........................14 AWG
Maximum Length (Shorter is Better).......50 ft.
Model G0792 (Mfd. Since 12/15)
SECTION 3: SETUP
This machine was carefully packaged for safe
transport. When unpacking, separate all enclosed
items from packaging materials and inspect them
for shipping damage.
,
please
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 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.
Unpacking
If items are damaged
call us immediately at (570) 546-9663.
Save all packaging materials until
SUFFOCATION HAZARD!
Inventory
Item Inventory (Figure 4) Qty
A. Machine Body with Pedestal Controls ....... 1
B. Ball Knob M16-2 ......................................... 1
C. Crank Handle w/Ball Knob M16-2 .............. 1
machine. Discard immediately.
Needed for Setup
The following items are needed, but not included,
for the setup/assembly of this machine.
Description Qty
• Hex Wrench 8mm ....................................... 1
• Additional People ....................................... 1
• Safety Glasses ........................................... 1
• Cleaner/Degreaser (Page 12) .... As Needed
• Disposable Shop Rags ............... As Needed
• Forklift ......................................................... 1
• Lifting Strap (Rated for at least 750 lbs.) .... 2
Model G0792 (Mfd. Since 12/15)
A
B
Figure 4. Model G0792 inventory.
C
NOTICE
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.
-11-
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.
3.
4.
Many cleaning solvents
work in a well-ventilated
Avoid chlorine-based solvents, such as
Cleanup
Gasoline and petroleum
products have low flash
points and can explode
or cause fire if used to
clean machinery. Av o i d
using these products
to clean machinery.
Put on safety glasses.
Coat the rust preventative with a liberal
amount of cleaner/degreaser, then let it soak
for 5–10 minutes.
Wipe off the surfaces. If your cleaner/degreas-
er is effective, the rust preventative will wipe
off easily. If you have a plastic paint scraper,
scrape off as much as you can first, then wipe
off the rest with the rag.
Repeat Steps 2–3 as necessary until clean,
then coat all unpainted surfaces with a quality
metal protectant to prevent rust.
are toxic if inhaled. Only
area.
NOTICE
acetone or brake parts cleaner, that may
damage painted surfaces.
T23692—Orange Power Degreaser
A great product for removing the waxy shipping grease from the non-painted parts of the
machine during clean up.
Figure 5. T23692 Orange Power Degreaser.
-12-
Model G0792 (Mfd. Since 12/15)
Site Considerations
Weight Load
Refer to the
of your machine. Make sure that the surface upon
which the machine is placed will bear the weight
of the machine, additional equipment that may be
installed on the machine, and the heaviest workpiece that will be used. Additionally, consider the
weight of the operator and any dynamic loading
that may occur when operating the machine.
Space Allocation
Consider the largest size of workpiece that will
be processed through this machine and provide
enough space around the machine for adequate
operator material handling or the installation of
auxiliary equipment. With permanent installations,
leave enough space around the machine to open
or remove doors/covers as required by the maintenance and service described in this manual.
See below for required space allocation.
Physical Environment
Extreme conditions for this type of machinery are
Place this machine near an existing power source.
other hazards. Make sure to leave enough space
Shadows, glare, or strobe effects that may distract
or impede the operator must be eliminated.
Machine Data Sheet for the weight
Children or untrained people
may be seriously injured by
this machine. Only install in an
access restricted location.
The physical environment where the machine is
operated is important for safe operation and longevity of machine components. For best results,
operate this machine in a dry environment that is
free from excessive moisture, hazardous chemicals, airborne abrasives, or extreme conditions.
generally those where the ambient temperature
range exceeds 41°–104°F; the relative humidity
range exceeds 20%–95% (non-condensing); or
the environment is subject to vibration, shocks,
or bumps.
Electrical Installation
Make sure all power cords are protected from
traffic, material handling, moisture, chemicals, or
around machine to disconnect power supply or
apply a lockout/tagout device, if required.
Lighting
Wall
Lighting around the machine must be adequate
enough that operations can be performed safely.
Min. 30"
for Maintenance
Model G0792 (Mfd. Since 12/15)
Keep
Workpiece
Loading Area
Unobstructed
= Electrical Connection Illustration Not To Scale
40"
Figure 6. Minimum working clearances.
Keep
29"
Workpiece
Loading Area
Unobstructed
-13-
Assembly
The Model G0792 comes with the headstock in
the horizontal position. To safely lift the machine,
you must first adjust the headstock to the vertical
position and install the upper roller crank handle.
To assemble machine:
1. Use an 8mm hex wrench to remove two cap
screws that secure headstock in horizontal
position (see Figure 7).
Lifting & Placing
HEAV Y LIFT!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
get help from other people
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
To lift and place the machine, wrap a lifting
strap rated for at least 750 lbs. around the crank
handle, as shown in Figure 9, then use a forklift
to lift the machine off of the pallet and onto a suitable location.
Cap Screws
(1 of 2)
Figure 7. Location of cap screws that secure
headstock in horizontal position.
2. With help from an assistant, gently tilt headstock up until it rests on base (see Figure 8).
3. Use cap screws removed in Step 1 to secure
headstock to base (see Figure 8).
4. Install upper roller crank handle and ball
knob, as shown in Figure 8.
Crank
Handle
Ball
Knob
Lifting
Strap
Figure 9. Lifting Model G0792.
Cap
Screws
Figure 8. Machine assembled for lifting.
-14-
Model G0792 (Mfd. Since 12/15)
Anchoring to Floor
Anchoring machinery to the floor prevents tipping
or shifting and reduces vibration that may occur
during operation, resulting in a machine that runs
slightly quieter and feels more solid.
If the machine will be installed in a commercial or
workplace setting, or if it is permanently connected (hardwired) to the power supply, local codes
may require that it be anchored to the floor.
If not required by any local codes, fastening the
machine to the floor is an optional step. If you
choose not to do this with your machine, we recommend placing it on machine mounts, as these
provide an easy method for leveling and they have
vibration-absorbing pads.
Lag shield anchors with lag screws (see below)
are a popular way to anchor machinery to a concrete floor, because the anchors sit flush with the
floor surface, making it easy to unbolt and move
the machine later, if needed. However, anytime
local codes apply, you MUST follow the anchoring
methodology specified by the code.
Anchoring to Concrete Floors
Number of Mounting Holes ............................ 4
Diameter of Mounting Hardware .................
1
⁄2"
Lag Screw
Flat Washer
Machine Base
Concrete
Figure 10. Popular method for anchoring
machinery to a concrete floor.
Lag Shield Anchor
Drilled Hole
Model G0792 (Mfd. Since 12/15)
-15-
Test Run
Once assembly is complete, test run the machine
to ensure it is properly connected to power and
safety components are functioning correctly.
If you find an unusual problem during the test run,
immediately stop the machine, disconnect it from
power, and fix the problem BEFORE operating the
machine again. The
table in the
SERVICE section of this manual can help.
DO NOT start machine until all preceding
setup instructions have been performed.
Operating an improperly set up machine
ed results that can lead to serious injury,
may result in malfunction or unexpect-
4. Twist both Emergency Stop/RESET buttons
clockwise until they pop out—this resets
switches so they will allow power to machine.
I
S
W
T
T
death, or machine/property damage.
Troubleshooting
To test run machine:
1. Clear all setup tools away from machine.
2. Push both Emergency Stop/RESET buttons
(see Figure 11).
Emergency Stop/
RESET Buttons
Main Power
Switch
Power ON
Button
Foot
Pedals
Emergency Stop Button
Figure 12. Resetting Emergency Stop/RESET
button.
5. Rotate main power switch (Figure 11) to ON
position.
6. Push POWER ON button (Figure 11). Green
light on button should illuminate.
7. Step on one foot pedal (Figure 11) to turn
motor ON. Release foot pedal to turn motor
OFF. A correctly operating machine runs
smoothly with little or no vibration or rubbing
noises.
8. Repeat Previous Step with the other foot
pedal to test run motor in opposite direction.
9. Press one Emergency Stop/RESET button,
then WITHOUT resetting Emergency Stop/
RESET button, press POWER ON button
and step on one foot pedal. The machine
should not start.
10. Reset Emergency Stop/RESET button,
then repeat Previous Step with the other
EMERGENCY STOP button.
— If machine does not start while either
EMERGENCY STOP button is depressed,
safety feature is working correctly.
Congratulations! Test Run is complete.
Figure 11. Location of test run controls.
3. Connect machine to power source.
-16 -
— If machine does start while either
Emergency Stop/RESET button is
depressed, immediately disconnect power
to machine. Emergency Stop/RESET button safety feature is not working correctly.
This safety feature must work properly
before proceeding with regular operations.
Call Tech Support for help.
Model G0792 (Mfd. Since 12/15)
SECTION 4: 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 and
rienced
research outside of this manual by reading "howto" books, trade magazines, or websites.
To reduce your risk of
serious injury, read this
entire manual BEFORE
Eye injury hazard! Always
wear safety glasses when
Serious injury or death can result from
Operation Overview
To complete a typical operation, the operator
does the following:
1. Determines best working position for opera-
tion (horizontal or vertical), and sets up
machine accordingly.
using this machine BEFORE understanding
its controls and related safety information.
DO NOT operate, or allow others to operate,
machine until the information is understood.
machine controls/components
are easier to understand.
seek additional training from expe-
machine operators, and do additional
2. Examines workpiece to make sure it is suitable for bending.
3. Adjusts upper roller so workpiece may be
inserted into rolling jig.
4. Puts on safety glasses.
5. Inserts workpiece so it rests on both lower
rollers, then adjusts upper roller, using crank
handle, against workpiece with moderate
pressure.
6. Turns machine ON, and uses foot pedal con-
trols to feed workpiece through, to end of arc.
Turns machine OFF.
7. Uses crank handle to incrementally increase
pressure of upper roller against workpiece.
8. Turns machine ON, and feeds workpiece
through machine in reverse direction from
previous step. Turns machine OFF.
using machine.
using this machine.
Model G0792 (Mfd. Since 12/15)
9. Repeats Steps 7–8 until desired arc/radius is
achieved.
9. Stops machine and removes workpiece.
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.
-17-
Rolling Arcs
The Model G0792 Ring Roll Pipe Bender can be
used to create arcs, circles, and spirals by feeding the pipe back and forth through the machine
with incrementally greater force exerted with each
pass by the upper roller until the desired arc or
bending amount is achieved.
The machine is capable of bending with the headstock in either a vertical or horizontal position.
Typically, the horizontal position is only needed
when bending extra long workpieces which could
create a space constraint in the vertical position.
Note: During the following steps, the directions
"left" and "right" refer to left and right as viewed
when facing the front of the machine.
Rolling an Arc in Vertical Position
1. DISCONNECT MACHINE FROM POWER!
2. Use crank handle to raise upper roller, then
place workpiece on lower rollers (see Figure
13).
3. Move upper roller down until it just touches
workpiece, as shown in Figure 14, then connect machine to power.
Figure 14. Upper roller lowered onto workpiece.
4. Tighten crank handle an additional 1⁄4–1⁄2 turn.
Note: The amount of additional tightening
varies depending on the strength of your
workpiece material. Therefore, it is a good
idea to first perform a test bend on a piece
of scrap material to get a feel for how much
force to exert when tightening.
5. Use foot pedal controls (see Figure 15) to
move workpiece to left or right to create a
slight bend in your workpiece (see Figure 16).
Upper
Roller
Workpiece
Figure 13. Workpiece placed on lower rollers in
Lower Rollers
preparation for bending.
Crank
Handle
Feed Left
Feed Right
Figure 15. Foot controls for moving workpiece
left and right through headstock.
Figure 16. Example of first bending pass.
-18-
Model G0792 (Mfd. Since 12/15)
6. When you reach end of your bend, release
foot pedal to stop motor.
7. To increase bend (create a tighter radius),
tighten crank handle an additional
as you did previously.
8. Use foot controls to move workpiece in
opposite direction to create more bend in
workpiece (see Figure 17).
Figure 17. Example of second bending pass.
1
⁄4–1⁄2 turn,
Positioning Headstock in Horizontal
Position
To roll a long arc, space constraints may make
it necessary to change the position of the headstock from the vertical to the horizontal position.
The back of the headstock is mounted to a hinge,
so it can be easily configured from one position to
the other (see Figure 19).
Tool Needed Qty
Hex Wrench 8mm .............................................. 1
9. When you reach end of bend, release foot
pedal to turn motor OFF.
10. Repeat Steps 4–9 until you achieve desired
radius (see Figure 18).
Figure 18. Example bend after multiple bending
passes.
Figure 19. Headstock tilted to horizontal position
for bending long arcs.
To position headstock in horizontal position:
1. DISCONNECT MACHINE FROM POWER!
2. Remove two cap screws shown in Figure 20.
Cap
Screws
Model G0792 (Mfd. Since 12/15)
Figure 20. Location of cap screws that secure
headstock in vertical position.
-19 -
3. With help of an assistant, gently tilt headstock
backward until it rests on horizontal mount,
as shown in Figure 21.
4. Use cap screws removed in Step 2 to secure
headstock to horizontal mount (see Figure
21).
Horizontal
Mount
Cap Screws
(1 of 2)
Figure 21. Headstock in horizontal position.
5. Place workpiece in headstock between upper
and lower rollers, tighten upper roller just
enough to secure workpiece, then connect
machine to power.
Rolling Compound
Arcs
Rolling a compound arc requires accessory rollers that do not come with the Model G0792, such
as Round Material Dies offered by Grizzly (see
Page 22 for more information).
To roll a compound arc you must introduce a slight
twist to the arc, so that it bends in both axes. This
is accomplished by adjusting one of the guide
rollers (see Figure 22) so that it exerts lateral
force on the workpiece as it passes through the
headstock.
Depending on your workpiece material and desired
results, the following operation may require some
trial and error. It is a good idea to start with a test
piece to get a feel for the adjustments needed.
Tools Needed Qty
Open-End Wrench 22mm .................................. 1
Open-End Wrench 30mm ................................. 1
6. Tighten upper roller an additional
then use foot pedals to move workpiece left
and right, each time tightening upper roller
more until desired radius is achieved (refer
to Steps 4–10 of Rolling an Arc in Vertical
Position for more details).
1
⁄4–1⁄2 turn,
Rolling Compound Arc
The following instructions are for rolling a compound arc in the vertical position. However, the
same procedure applies with the headstock in the
horizontal position.
To roll a compound arc:
1. Roll an arc to your desired radius, as illus-
trated in Figure 22 (refer to Rolling Arc in
Vertical Position, beginning on Page 18).
Guide Roller
Workpiece Bent
to Desired Arc
-20-
Figure 22. Workpiece positioned on headstock
for compound bend.
Model G0792 (Mfd. Since 12/15)
2. Loosen upper guide retaining nut on outgoing
side of headstock (see Figure 23).
3. Rotate upper guide adjustment bolt to
push guide roller against workpiece (see
Figure 23).
Rolling a Continuous Coil
To roll a coil shape (see Figure 24) you first must
roll as close to a complete circle as possible, then
introduce a slight twist to the arc, allowing the
bend to continue beyond a complete circle.
Upper
Adjustment
Retaining
Nut
Bolt
Workpiece
Bent Laterally
by Guide Roller
Lower
Adjustment
Bolt
Figure 23. Location of compound bending
components (side view).
1
4. Tighten adjustment bolt an additional
⁄4–1
turn, depending on strength of workpiece and
desired bend, then lock in place by tightening
retaining nut from Step 2.
5. Use foot controls to advance workpiece
through headstock. Position of guide roller
will produce a slight twist in workpiece.
6. When you reach end of bend, release foot
pedal to stop motor.
— If you require more twist in your com-
pound arc, use foot controls to reverse
workpiece to beginning of bend, then
repeat Steps 2–6 on same side. Repeat
until you achieve your desired bend.
Note: Due to differences in workpiece mate-
rials and achievable shapes, you will likely
need to experiment with a combination of
adjustments to get the results you want. This
includes rotating the lower adjustment bolt
(see Figure 23).
Figure 24. Example of achievable coil shape.
To roll a continuous coil:
1. Follow instructions for rolling an arc (see
Rolling an Arc, beginning on Page 18) until
your workpiece is as close to a complete
circle as your operation allows.
2. Adjust guide roller on outgoing side of headstock to introduce a slight twist in your
workpiece (see Figure 23 and Steps 2–4 of
Rolling Compound Arc).
3. Use foot controls to advance workpiece as
far as operation will allow, then release foot
pedal to stop motor.
— If more twist is required, reverse workpiece
to beginning of bend and repeat Steps
2–3 on same side until achieving desired
results.
Model G0792 (Mfd. Since 12/15)
-21-
ACCESSORIES
Installing unapproved accessories may
order online at www.grizzly.com or call 1-800-523-4777
SECTION 5: ACCESSORIES
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.
G7153—Universal Bender
This heavy-duty universal bender has a bending
capacity of 28
iron, brass, copper and aluminum. Make radius
bends, rings, spirals and angle bends. Maximum
capacity for round bar:
flat bar: 1
Min ID:
approx. 53 lbs.
1
⁄2 tons to shape steel, iron, wrought
5
3
⁄16" x 5⁄16". U-shape bends: Max ID: 3,"
3
⁄4". Fully adjustable. Shipping weight is
⁄8"; square bar: 19⁄32"; and
SB1365—South Bend Way Oil-ISO 68
T23964—Multi-Purpose NLGI#2 Grease
G2545 —Silicone Lubricant
Figure 26. Recommended products for machine
lubrication.
Basic Eye Protection
T20501—Face Shield Crown Protector 4"
T20502—Face Shield Crown Protector 7"
T20503—Face Shield Window
T20451—“Kirova” Clear Safety Glasses
T20452—“Kirova” Anti-Reflective S. Glasses
H7194—Bifocal Safety Glasses 1.5
H7195—Bifocal Safety Glasses 2.0
H7196—Bifocal Safety Glasses 2.5
Figure 25. Model G7153 Universal Bender.
Round Material Dies
Expand your bending capability with these round
material dies from Grizzly, allowing you to bend
round stock for marine hand rails, coils of tubing,
decorative iron-work, and much more!
1
T27631—
T27632—
T27633—1" Round
⁄2" Round
3
⁄4" Round
T20502
T20452
T20503
H7194
Figure 27. Assortment of basic eye protection.
T20451
-22-
Model G0792 (Mfd. Since 12/15)
SECTION 6: MAINTENANCE
accidental startup, always
disconnect machine from
To reduce risk of shock or
power before adjustments,
maintenance, or service.
Schedule
For optimum performance from your machine,
follow this maintenance schedule and refer to any
specific instructions given in this section.
Daily Check
• Loose mounting bolts.
• Worn or damaged wires.
• Any other unsafe condition.
As Needed
• Check/adjust lubrication of leadscrew.
• Check/adjust lubrication of drive gears.
Lubrication
For optimum performance, periodically check
and, if necessary, lubricate the leadscrew and
drive gears.
Items Needed Qty
Hex Wrench 6mm .............................................. 1
Hex Wrench 4mm .............................................. 1
Mineral Spirits .................................... As Needed
Small Brushes ................................................... 2
Way Oil ISO 68 .................................. As Needed
Grease NLGI#2 ................................. As Needed
To access leadscrew and drive gears:
1. DISCONNECT MACHINE FROM POWER!
2. Remove M5-.8 x 12 cap screw and drive shaft
cover from back of machine (see Figure 28).
3. Remove (6) M8-1.25 x 16 cap screws and
drive gear cover (see Figure 28).
Cleaning &
Protecting
Cleaning the Model G0792 is relatively easy.
Wipe down all unpainted and machined surfaces
daily to keep them rust free and in top condition.
This includes any surface that is vulnerable to rust
if left unprotected. Use ISO 68 way oil or any other
quality metal lubricant (see Page 22 for offerings
from Grizzly) to prevent corrosion.
Model G0792 (Mfd. Since 12/15)
Cap Screw
M8-1.25 x 16
Drive Gear
Cover
Drive Shaft
Cover
Cap Screw
M5-.8 x 12
Figure 28. Components to remove before
lubricating leadscrew and drive gears.
4. Lubricate leadscrew and drive gears (see
Figure 29 on Page 24), as necessary.
5. Re-install drive gear cover and drive shaft
cover.
-23-
Leadscrew
Oil Type .... Grizzly T23962 or ISO 68 Equivalent
Oil Amount ......................................... As Needed
Lubrication Frequency ....................... As Needed
Before lubricating the leadscrew (see Figure 29),
clean it first with mineral spirits. A stiff brush works
well to help clean out the threads. Make sure to
raise and lower the upper roller, so you can clean
the entire length of the leadscrew.
Drive Gears
Grease Type ........ T23964 or NLGI#2 Equivalent
Lubrication ................. Every 50 Operating Hours
The drive gears, shown in Figure 29, should
always have a thin coat of heavy grease to minimize corrosion, noise, and wear.
Before lubricating the drive gears, clean them
thoroughly with mineral spirits to remove old
grease. Use a small brush if necessary to clean
between teeth.
Leadscrew
Figure 29. Leadscrew and drive gears exposed
for cleaning and lubricating.
Apply a thin coat of oil along the length of the
leadscrew. Use a stiff brush to apply oil evenly
and down into the threads, then raise and lower
the upper roller to thoroughly disperse the oil.
Note: In some environments, abrasive material
can become caught in the leadscrew lubricant
and drawn into the leadscrew nut. In this case,
lubricate the leadscrew with a quality dry lubricant
such as Grizzly G2545 Silicone Lubricant (see
Accessories on Page 22).
Drive Gears
Using a clean brush, apply a thin layer of grease
on gears. Make sure to get grease between gear
teeth, but do not fill teeth valleys.
Apply a small dab of grease where gear teeth
mesh together—this grease will be distributed
when gears rotate during machine operation.
Note: If for any reason you need to replace a
gear, clean and lubricate all gears at that time.
-24-
Model G0792 (Mfd. Since 12/15)
Review the troubleshooting and procedures in this section if a problem develops with your machine. If
you need replacement parts or additional help with a procedure, call our Technical Support.
gather the serial number and manufacture date of your machine before calling.
SECTION 7: SERVICE
Troubleshooting
Motor & Electrical
Symptom Possible Cause Possible Solution
Machine does not
start or a breaker
trips.
Machine stalls or is
underpowered.
Machine has
vibration or noisy
operation.
1. Emergency stop button(s) depressed/at
fault.
2. Main power switch in OFF position/at fault.
3. Plug/receptacle at fault/wired wrong.
4. Incorrect power supply voltage/circuit size.
5. Power supply circuit breaker tripped or fuse
blown.
6. Motor wires connected incorrectly.
7. Contactor not energized/has poor contacts.
8. Wiring open/has high resistance.
9. Power ON button at fault.
10. Foot pedal switch(es) at fault.
11. Start capacitor at fault.
12. Centrifugal switch at fault.
13. Motor at fault.
1. Machine undersized for task.
2. Wrong workpiece material.
3. Motor overheated.
4. Motor wired incorrectly.
5. Contactor not energized/has poor contacts.
6. Plug/receptacle at fault.
7. Gearbox at fault.
8. Run capacitor at fault.
9. Centrifugal switch at fault.
10. Foot pedal switch(es) at fault.
11. Motor bearings at fault.
1. Motor or component loose.
2. Motor fan rubbing on fan cover.
3. Motor mount loose/broken.
4. Machine incorrectly mounted on floor.
5. Roller(s) at fault/incorrectly installed.
6. Centrifugal switch at fault.
7. Motor bearings at fault.
1. Rotate button head to reset. Replace.
2. Rotate switch to ON position. Replace.
3. Test for good contacts; correct the wiring.
4. Ensure correct power supply voltage/circuit size.
5. Ensure circuit is sized correctly and free of shorts.
Reset circuit breaker or replace fuse.
6. Correct motor wiring connections.
7. Test all legs for power/replace.
8. Check/fix broken, disconnected, or corroded wires.
9. Test/replace.
10. Test/replace switch(es).
11. Test/replace.
12. Adjust/replace centrifugal switch if available.
13. Test/repair/replace.
1. Reduce bending pressure of upper roller.
2. Use correct type/size of metal stock.
3. Clean motor, let cool, and reduce workload.
4. Wire motor correctly.
5. Test all legs for power/replace.
6. Test for good contacts/correct wiring.
7. Replace broken or slipping gears.
8. Test/replace.
9. Adjust/replace centrifugal switch if available.
10. Test/replace switch(es).
11. Test/replace.
1. Inspect/replace damaged bolts/nuts, and retighten
with thread-locking fluid.
2. Fix/replace fan cover; replace loose/damaged fan.
3. Tighten/replace.
4. Tighten mounting bolts; relocate/shim machine.
5. Ensure rollers are correctly installed, replace if
necessary.
6. Replace.
7. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
Note: Please
Model G0792 (Mfd. Since 12/15)
-25-
Machine Operation
Symptom Possible Cause Possible Solution
Workpiece deforms,
kinks, or is crushed
during operation.
Workpiece does not
move when rollers
rotate.
1. Excessive bending pressure.
2. Roller profile not compatible with workpiece
shape.
1. Not enough bending pressure.
2. Grease/oil on workpiece/rollers, causing
rollers to slip against workpiece.
1. Reduce bending pressure of upper roller.
2. Use workpiece suitable for bending operation; use
correct rollers for shape of workpiece.
1. Increase bending pressure of upper roller.
2. Thoroughly clean workpiece/rollers to prevent
slipping.
-26-
Model G0792 (Mfd. Since 12/15)
These pages are current at the time of printing. However, in the spirit of improvement, we may make changes to the electrical systems of future machines. Compare the manufacture date of your machine to the one
number and manufacture date of your
machine before calling. This information can be found on the main machine label.
machine
SECTION 8: WIRING
stated in this manual, and study this section carefully.
If there are differences between your machine and what is shown in this section, call Technical Support at
(570) 546-9663 for assistance BEFORE making any changes to the wiring on your machine. An updated
wiring diagram may be available. Note: Please gather the serial
Wiring Safety Instructions
SHOCK HAZARD. Working on wiring that is con-
nected to a power source is extremely dangerous.
Touching electrified parts will result in personal
injury including but not limited to severe burns,
electrocution, or death. Disconnect the power
from the machine before servicing electrical components!
MODIFICATIONS. Modifying the wiring beyond
what is shown in the diagram may lead to unpredictable results, including serious injury or fire.
This includes the installation of unapproved aftermarket parts.
WIRE CONNECTIONS. All connections must
be tight to prevent wires from loosening during
machine operation. Double-check all wires disconnected or connected during any wiring task to
ensure tight connections.
CIRCUIT REQUIREMENTS. You MUST follow
the requirements at the beginning of this manual
when connecting your machine to a power source.
WIRE/COMPONENT DAMAGE. Damaged wires
or components increase the risk of serious personal injury, fire, or machine damage. If you notice
that any wires or components are damaged while
performing a wiring task, replace those wires or
components.
MOTOR WIRING. The motor wiring shown in
these diagrams is current at the time of printing
but may not match your machine. If you find this
to be the case, use the wiring diagram inside the
motor junction box.
CAPACITORS/INVERTERS. Some capacitors
and power inverters store an electrical charge for
up to 10 minutes after being disconnected from
the power source. To reduce the risk of being
shocked, wait at least this long before working on
capacitors.
EXPERIENCING DIFFICULTIES. If you are experiencing difficulties understanding the information
included in this section, contact our Technical
Support at (570) 546-9663.
The photos and diagrams
included in this section are
best viewed in color. You
can view these pages in
color at www.grizzly.com.
Model G0792 (Mfd. Since 12/15)
-27-
Electrical Components
Emergency
Stop Button
Emergency
Stop Button
Master Power
Switch
Relay
Transformer
Contactor
Power Button
Foot Pedal
Controls
Figure 32. Foot pedal assembly, emergency
stop button, and forward-facing controls.
Terminal
Figure 30. Electrical cabinet components.
Figure 31. Foot pedal wiring.
-28-
READ ELECTRICAL SAFETY
ON PAGE 27!
Figure 33. Motor junction box and starting
switch.
Model G0792 (Mfd. Since 12/15)
Electrical Panel Wiring Diagram
E-STOP
3
Button
2
Anivec
LA158-
BE102
1NC
1
2
1L2
1L1
L1 L2 L3
Master
POWER Switch
E&E LW8GS-
25/30000-A
T1 T2 T3
L1
L2
4
0
3
X1 X2
Anivec
LA158-BW
NO
POWER
Button
4
5
1L2
1L1
CHNT CHNT
DZ47-60
D10
Relay
QF1
1L1
DZ47-60
C3
Relay
1L2
QF2
Transformer
Beijing AOHENGDA Electric Co.
JB/T5555 50/60 HZ T40/E IP2LX
Type: JBK5-63VA
TC
0 220 400 415 0 24
R1 S1
R1
5
A1
S1
1L1
3L2 5L3
4
Contactor
SIEMENS 3TB41 24V
5
22E
14NO 22NC
5
2T1
1U1
32NC
6T34T2
1V1
2L1 2L2
2L1
2L2
11
8
43NO31NC21NC13NO
Contactor
44NO
7
0
0
8
A1
1V1
1U1
5
1L1
43NO31NC21NC13NO
22E
44NO
14NO 22NC
6
2T1
A2 A2 A2
1
1U1
3L2 5L3
KM1
SIEMENS 3TB41 24V
32NC
6T34T2
5
4
0
1V1
A1
1U1
1L1
3L2 5L3
KM2
22E
SIEMENS 3TB41 24V
14NO 22NC
2T1
4
CHNT
1U1
Contactor
32NC
6T3
4T2
10
5
1
0
11
43NO31NC21NC13NO
44NO
PE
1
1
QF3
CHNT
DZ47-60
QM1
C3
ON
OFF
2
0
PE
L1
PE
L1 L2 PE
L1 L2 PE
PE
PE
L1
Model G0792 (Mfd. Since 12/15)
L2
PE
L2
PE
4 5
1
V1 U2
U1
V1 U2
U1
4 5
1
3
4
6
7
10
3
3
3
6
4
6
4
4
6
10
7
10
7
7
10
Hot
220
VAC
Hot
PE
Ground
G
6-15 Plug
READ ELECTRICAL SAFETY
-29-
ON PAGE 27!
Motor Diagram
Ground
220V Motor
To Control Panel
Page 29
4 4
3 3
2
ESS1-40
Starting
Switch
Start Capacitor
CD60 400MFD
275VAC
Run Capacitor
CBB60 40MFD
450VAC
1
1
2
9
8
8
7
1
4
5
4
1
5
GND
PE
To Control
Panel
Page 29
Foot Pedal & E-Stop Diagram
10
6
PE
7
6
1NC2
3 4
ZB2-BE102
E-Stop Button
Foot Pedal Controls
-30-
READ ELECTRICAL SAFETY
ON PAGE 27!
Model G0792 (Mfd. Since 12/15)
SECTION 9: PARTS
We do our best to stock replacement parts when possible, but we cannot guarantee that all parts shown
are available for purchase. Call (800) 523-4777 or visit www.grizzly.com/parts to check for availability.
Main
41
74
73
72
92-1
92-2
92-3
69
71
41
66
70
17
68
92
73
72
19
73
103
102
70
67
68
69
14
71
74
74
95
69
73
79
77
19
41
96
74
72
78V2
68
99
41
66
94
60
19
91
72
93
21
14
17
101
61
2
52
62
23
57
98
46
53
9595
51
45
97
56
47
58
50
81
43
49
48
29
31
95
39V2
65
104
39-3
39-10
39-6
83
37
33
39-4
39-5
82
61
62
63
36
35
95
84
85
86
39-5
12
4
57
32
31
15
4
100
44
28
34
20
16
27
59
30
76
26
8
7
10
82
1
3
42
75
4
6
9
5
39-8V2
39-7
54
25
24
55
51
6
95
4
64
22
18
38
40
39-2V2
39-13
39-12
39-9V2
11
Model G0792 (Mfd. Since 12/15)
-31-
Main Parts List
REF PART # DESCRIPTION REF PART # DESCRIPTION
1 P0792001 BASE PLATE 47 P0792047 ELEVATION SPACER BLOCK (LARGE)
2 P0792002 STAND W/DOOR 48 P0792048 ELEVATION LEVER SHAFT
3 P0792003 HEX BOLT M10-1.5 X 30 49 P0792049 ELEVATION SUPPORT BLOCK
4 P0792004 FLAT WASHER 10MM 50 P0792050 ELEVATION SPACER BLOCK (SMALL)
5 P0792005 MAIN PLATE 51 P0792051 CAP SCREW M5-.8 X 12
6 P0792006 CAP SCREW M10-1.5 X 30 52 P0792052 VERTICAL SLIDE BLOCK, SHORT (FRONT)
7 P0792007 PIVOT PLATE 53 P0792053 FLAT HD CAP SCR M5-.8 X 10
8 P0792008 GEARING PLATE 54 P0792054 VERTICAL SLIDE BLOCK, SHORT (REAR)
9 P0792009 CAP SCREW M12-1.75 X 35 55 P0792055 SET SCREW M8-1.25 X 25 DOG-PT
10 P0792010 CAP SCREW M10-1.5 X 35 56 P0792056 HANDLE SHAFT M16-2 X 16, 395L
11 P0792011 PIVOT SHAFT 57 P0792057 ROUND KNOB M16-2 SS
12 P0792012 HINGE 58 P0792058 HEX BOLT M10-1.5 X 60
14 P0792014 OUTER BEARING SLEEVE 59 P0792059 STAND-OFF HEX MF M8-1.25 X 14, M8-1.25
15 P0792015 INNER BEARING SLEEVE (LEFT) 60 P0792060 FRONT COVER
16 P0792016 INNER BEARING SLEEVE (RIGHT) 61 P0792061 CAP SCREW M8-1.25 X 16
17 P0792017 TAPERED ROLLER BEARING 30206 62 P0792062 FLAT WASHER 8MM
18 P0792018 GEAR SHAFT 63 P0792063 BACK COVER
19 P0792019 SPACER 64 P0792064 ANGLE BRACKET
20 P0792020 KEY 8 X 8 X 45 65 P0792065 CAP SCREW M6-1 X 10
21 P0792021 SHAFT 66 P0792066 ROLLER FLAT 3-13/16" (LOWER)
22 P0792022 KEY 8 X 8 X 18 67 P0792067 ROLLER FLAT 3-13/16" (UPPER)
23 P0792023 KEY 8 X 8 X 40 68 P0792068 FLAT WASHER 20MM
24 P0792024 VERTICAL SLIDE BLOCK, LONG (REAR) 69 P0792069 HEX NUT M20-1.5
25 P0792025 FLAT HD CAP SCR M6-1 X 12 70 P0792070 GUIDE ROLLER SHAFT
26 P0792026 BALL BEARING 6205-2RS 71 P0792071 GUIDE ROLLER SLEEVE
27 P0792027 GEAR SHAFT 72 P0792072 BALL BEARING 6001-2RS
28 P0792028 KEY 10 X 10 X 19 73 P0792073 GUIDE ROLLER BRACKET
29 P0792029 GEAR 33T 74 P0792074 SET SCREW M8-1.25 X 20 DOG-PT
30 P0792030 BUSHING 75 P0792075 CAP SCREW M8-1.25 X 30
31 P0792031 GEAR 68T 76 P0792076 DRIVESHAFT COVER
32 P0792032 GEAR 24T 77 P0792077 CAP SCREW M5-.8 X 10
33 P0792033 GEAR 55T 78V2 P0792078V2 UPPER ROLLER PLATE W/SCALE V2.12.15
34 P0792034 KEY 8 X 8 X 56 79 P0792079 FLAT WASHER 5MM
35 P0792035 EXT TOOTH LOCK WASHER 30MM 81 P0792081 VERTICAL SLIDE BLOCK, LONG (FRONT)
36 P0792036 SPANNER NUT M30-1.5 82 P0792082 LOCK WASHER 10MM
37 P0792037 ROLLER GUIDE ADJUSTMENT SHAFT 83 P0792083 CAP SCREW M10-1.5 X 30
38 P0792038 GEARBOX 84 P0792084 PHLP HD SCR M4-.7 X 8
39V2 P0792039V2 MOTOR 2HP 220V 1-PH V2.12.15 85 P0792085 WAVY WASHER 4MM
39-2V2 P0792039-2V2 MOTOR JUNCTION BOX V2.12.15 86 P0792086 FLAT WASHER 4MM
39-3 P0792039-3 MOTOR FAN COVER 91 P0792091 PEDAL SWITCH STAND
39-4 P0792039-4 MOTOR FAN 92 P0792092 PEDAL SWITCH ASSEMBLY
39-5 P0792039-5 BALL BEARING 6205-2RS 92-1 P0792092-1 PHLP HD SCR M3-.5 X 12
39-6 P0792039-6 CENTRIFUGAL SWITCH 92-2 P0792092-2 FLAT WASHER 3MM
39-7 P0792039-7 CONTACT PLATE 92-3 P0792092-3 FOOT PEDAL SWITCH
39-8V2 P0792039-8V2 S CAPACITOR 400M 275V 2 X 4 V2.12.15 93 P0792093 E-STOP BUTTON ZB2-BE102
39-9V2 P0792039-9V2 R CAPACITOR 40M 450V 2 X 3-3/4 V2.12.15 94 P0792094 HANDLE GRIP 25 X 128MM
39-10 P0792039-10 TERMINAL BLOCK 3P 95 P0792095 STRAIN RELIEF M20-1.5 TYPE-5
39-11 P0792039-11 TAP SCREW M3 X 12 96 P0792096 FLEXIBLE CONDUIT 7/8" X 3-1/2" (PLASTIC)
39-12 P0792039-12 CAPACITOR COVER 97 P0792097 FLEXIBLE CONDUIT 7/8" X 63" (PLASTIC)
39-13 P0792039-13 ELECTRONIC START SWITCH ESS1-40 98 P0792098 PHLP HD SCR M4-.7 X 28
40 P0792040 MOTOR MOUNT BLOCK 99 P0792099 HEX BOLT M6-1 X 12
41 P0792041 HEX NUT M8-1.25 100 P0792100 DOOR LATCH W/KEY
42 P0792042 CAP SCREW M10-1.5 X 25 101 P0792101 CAP SCREW M6-1 X 16
43 P0792043 ELEVATION SLIDE BLOCK 102 P0792102 PHLP HD SCR M5-.8 X 26
44 P0792044 GEAR SHAFT 103 P0792103 PHLP HD SCR M5-.8 X 95
45 P0792045 COMPRESSION SPRING 10.5 X 15 104 P0792104 FLEXIBLE CONDUIT 7/8" X 24" (PLASTIC)
46 P0792046 SPRING SHAFT
-32-
Model G0792 (Mfd. Since 12/15)
Electrical Panel
201
204
209
1NC
L1 L2 L3
T1 T2 T3
210
3
NO
4
202
203
205
211
0 220 400 415 0 24
206 207 208
CHNT
1L1
22E
3TB41
14NO 22NC
2T1
3L2 5L3
32NC
6T34T2
43NO31NC21NC13NO
44NO
1L1
3L2 5L3
22E
3TB41
14NO 22NC
2T1
32NC
6T34T2
43NO31NC21NC13NO
44NO
1L1
22E
3TB41
14NO 22NC
2T1
3L2 5L3
32NC
43NO31NC21NC13NO
44NO
6T34T2
C3
ON
OFF
214
212
212 212
213
220
PE
L1 L2 PE
V1 U2
U1
3
6
V2
4
20
7
221
215
223
217
PE
L1 L2 PE
V1 U2
U1
3
V2
6
4
218 219
20
7
222
216
REF PART # DESCRIPTION REF PART # DESCRIPTION
201 P0792201 E-STOP BUTTON ANIUEC LA158-BE102 213 P0792213 CIRCUIT BREAKER 3A CHNT DZ47-60 C3 1P
202 P0792202 ELECTRICAL PANEL MOUNTING PLATE 214 P0792214 FOOT SWITCH CORD 12G 6W 60"
203 P0792203 WIRE RACEWAY 215 P0792215 POWER CORD 12G 3W 72"
204 P0792204 POWER SWITCH E&E LW8GS-25/30000 216 P0792216 MOTOR CORD 12G 5W 48"
205 P0792205 DIN RAIL (UPPER) 217 P0792217 DIN RAIL (LOWER)
206 P0792206 CIRCUIT BREAKER 10A CHNT DZ47-60 D10 2P 218 P0792218 TERMINAL BAR 8P
207 P0792207 CIRCUIT BREAKER 3A CHNT DZ47-60 C3 2P 219 P0792219 TERMINAL BAR 5P
208 P0792208 TRANSFORMER BEIJ AOHENGDA JB/T555 220 P0792220 CAP SCREW M4-.7 X 8
209 P0792209 POWER LAMP ANUIEC LA158-BW 24V 221 P0792221 FLAT WASHER 4MM
210 P0792210 POWER BUTTON ANIUEC LA158-BE101 222 P0792222 CAP SCREW M6-1 X 12
211 P0792211 DIN RAIL (MIDDLE) 223 P0792223 STRAIN RELIEF M20-2 TYPE-3
212 P0792212 CONTACTOR SIEMENS 3TB41 22-0X
Model G0792 (Mfd. Since 12/15)
-33-
grizzly.com
G0792
G0792 Machine Labels C
(1/14/15)
GRIZZLY GREEN
PANTONE 568C
COLOR CODES
51 x 196mm
42 x 294mm
CRUSHING/
AMPUTATION
INJURY HAZARD!
Do not place hands
between rollers
during use.
• Size = 1:1
(unless otherwise noted)
• Labels MUST be made of
chemical-resistant material
INJURY/SHOCK
HAZARD!
Disconnect power
before adjustments,
maintenance, or
service.
• Size = 1:1
(unless otherwise noted)
• Labels MUST be made of
chemical-resistant material
309 308
G0792 Machine Labels C
(1/14/15)
51 x 196mm
INJURY/SHOCK
HAZARD!
Disconnect power
before adjustments,
maintenance, or
service.
CRUSHING/
AMPUTATION
INJURY HAZARD!
Do not place hands
between rollers
during use.
(1/14/15)
• Size = 1:1
(unless otherwise noted)
• Labels MUST be made of
chemical-resistant material
INJURY/SHOCK
HAZARD!
Disconnect power
before adjustments,
maintenance, or
service.
CRUSHING/
AMPUTATION
INJURY HAZARD!
Do not place hands
between rollers
during use.
• Size = 1:1
(unless otherwise noted)
• Labels MUST be made of
chemical-resistant material
313
301
Labels & Cosmetics
MODEL G0792
HEAVY-DUTY RING
ROLL PIPE BENDER
WARNING!
To reduce risk of serious personal injury when using this
machine:
1. Read and understand owner’s manual before starting.
2. Always wear approved safety glasses.
3. Only plug power cord into a grounded outlet.
4. Disconnect power before setting up, adjusting, or servicing.
5. Avoid getting entangled in rotating parts—tie back long hair,
roll up sleeves, and DO NOT wear loose clothing, gloves, or
jewelry.
6. Keep hands and fingers away from rotating rolls.
7. Never exceed rated capacities.
8. DO NOT modify machine in any way.
9. Never leave machine running unattended.
10. DO NOT operate when tired or under influence of drugs or
alcohol.
11. DO NOT expose to rain or use in wet locations.
12. Prevent unauthorized use by children or untrained users;
restrict access or disable machine when unattended.
302
Specifications
Motor: 1.5 HP, 220V, 1-Ph, 60 Hz
Full-Load Current Rating: 7.1A
Nominal Pipe Diameter: 1-1/8"
Solid Bar Mild Steel Diameter: 5/8"
Square Mild Steel: 1-9/16" x 1-9/16" x 1/16"
C-Channel Mild Steel: 2" x 1" x 1/8"
Roll Diameter: 3-13/16"
Shaft Diameter 1-1/8"
Minimum Outer Radius: 11-3/4"
Max. Bending Speed: 14.8 FPM
Weight: 583 lbs.
Date
S/N
Manufactured for Grizzly in China
303
312
WARNING!
To reduce risk of death
or serious injury, read
manual BEFORE using
machine.
To get a new manual,
call (800) 523-4777 or
go to www.grizzly.com.
311
310
REF PART # DESCRIPTION REF PART # DESCRIPTION
301 P0792301 ELECTRICITY LABEL 308 P0792308 GRIZZLY BEIGE TOUCH-UP PAINT
302 P0792302 MACHINE ID LABEL 309 P0792309 GRIZZLY NAMEPLATE
303 P0792303 ELECTRICITY LABEL 310 P0792310 GRIZZLY GREEN TOUCH-UP PAINT
304 P0792304 DISCONNECT POWER LABEL 311 P0792311 MODEL NUMBER LABEL
305 P0792305 CRUSHING/AMPUTATION HAZARD LABEL 312 P0792312 READ MANUAL LABEL
306 P0792306 ELECTRICITY LABEL 313 P0792313 EYE INJURY HAZARD LABEL
307 P0792307 GRIZZLY.COM 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 (800) 523-4777 or www.grizzly.com.
-34-
INJURY/SHOCK
HAZARD!
Disconnect power
before adjustments,
maintenance, or
service.
CRUSHING/
AMPUTATION
INJURY HAZARD!
Do not place hands
between rollers
during use.
306
307
Model G0792 (Mfd. Since 12/15)
304
305
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
____ Family Handyman
____ Hand Loader
____ Handy
____ Home Shop Machinist
____ Journal of Light Cont.
____ Live Steam
____ Model Airplane News
____ Old House Journal
____ Popular Mechanics
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
____ Popular Woodworking
____ Precision Shooter
____ Projects in Metal
____ RC Modeler
____ Rie
____ 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.
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