WARNING : NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#TS10934 PRINTED IN TAIWA N
V2.01.21
Page 2
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.
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 G0678 (Mfd. Since 06/15)
Page 5
Identification
To reduce your risk of
serious injury, read this
entire manual BEFORE
A
S
R
Q
Front
B
C
D
N
O
P
M
L
K
Rear
E
F
G
H
I
J
Figure 1. Model G0678 identification.
A. Control Panel (refer to Page 17 for details)
Coarse Downfeed Handle
B.
C. V-Belt Cover
D. Motor 1 1⁄2 HP, 220V, 3-Phase
Turret
E.
F. Downfeed Selector
G. Work Light 110V
H. Longitudinal (X-Axis) Handwheel
I. Vertical (Z-Axis) Crank Handle
J. One-Shot Oiler
K. Base
L. Splash Pan
M. Column
N. V-Belt Tension Adjustment Bolt
O. Longitudinal Handwheel
P. Cross (Y-Axis) Feed Limit Stop Track
Q. Cross Feed Handwheel
R. Longitudinal Limit Stop Track
S. Fine Downfeed Handwheel
using machine.
Model G0678 (Mfd. Since 06/15)
-3-
Page 6
Machine Data Sheet
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
Width (side-to-side) x Depth (front-to-back) x Height............................................................... 40-1/2 x 42-3/4 x 67 in.
Footprint (Length x Width)............................................................................................................................ 19 x 26 in.
Space Required for Full Range of Movement (Width x Depth).................................................................... 68 x 45 in.
Length x Width x Height....................................................................................................................... 45 x 45 x 76 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement........................................................................................................... 220V, Single-Phase, 60 Hz
Full-Load Current Rating.......................................................................................................................................... 5A
Power Cord Included............................................................................................................................................... No
Recommended Power Cord............................................................................... “S”-Type, 3-Wire, 16 AWG, 300 VAC
Plug Included........................................................................................................................................................... No
Inverter (VFD) Size............................................................................................................................................... 1 HP
Motors:
data sheet
Main
Horsepower............................................................................................................................................. 1.5 HP
Power Transfer ............................................................................................................................................ Belt
Spindle Travel........................................................................................................................................ 3-1/2 in.
Max Distance Spindle to Column................................................................................................................. 7 in.
Max Distance Spindle to Table.................................................................................................................. 20 in.
Longitudinal Table Travel (X-Axis)............................................................................................................. 18 in.
Cross Table Travel (Y-Axis).................................................................................................................. 7-1/2 in.
Vertical Table Travel (Z-Axis).............................................................................................................. 17-3/4 in.
Turret or Column Swivel (Left /Right)................................................................................................... 360 deg.
Head Tilt (Left/Right).............................................................................................................................. 90 deg.
Drilling Capacity for Cast Iron...................................................................................................................... 1 in.
Drilling Capacity for Steel......................................................................................................................... 3/4 in.
End Milling Capacity.................................................................................................................................... 1 in.
Face Milling Capacity................................................................................................................................... 3 in.
Table Info
Table Length.............................................................................................................................................. 30 in.
Table Width.................................................................................................................................................. 8 in.
Table Thickness........................................................................................................................................... 2 in.
Number of T-Slots............................................................................................................................................ 3
T-Slot Size................................................................................................................................................ 1/2 in.
T-Slots Centers.................................................................................................................................... 2-3/16 in.
Drawbar Length................................................................................................................................... 12-3/8 in.
Table................................................................................................... Hardened & Precision Ground Cast Iron
Head.................................................................................................................................................... Cast Iron
Column/Base....................................................................................................................................... Cast Iron
Base..................................................................................................................................................... Cast Iron
Country of Origin .............................................................................................................................................. Taiwan
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time .............................................................................................................. 1 Hour
Serial Number Location ................................................................................................................... Machine ID Label
Features:
One-Shot Lubrication
High-Precision Ball Bearings
Bronze Nut on Longitudinal & Cross Feed Leadscrews
Variable Frequency Drive Speed Control
Hardened and Precision-Ground Leadscrews
Runs on Single-Phase Power Using a 3-Phase Inverter
Work Light
Model G0678 (Mfd. Since 06/15)
-5-
Page 8
SECTION 1: SAFETY
For Your Own Safety, Read Instruction
Manual Before Operating This Machine
The purpose of safety symbols is to attract your attention to possible hazardous conditions.
This manual uses a series of symbols and signal words intended to convey the level of importance of the safety messages. The progression of symbols is described below. Remember that
safety messages by themselves do not eliminate danger and are not a substitute for proper
accident prevention measures. Always use common sense and good judgment.
Indicates an imminently hazardous situation which, if not avoided,
WILL result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
COULD result in death or serious injury.
Indicates a potentially hazardous situation which, if not avoided,
MAY result in minor or moderate injury. It may also be used to alert
against unsafe practices.
Alerts the user to useful information about proper operation of the
NOTICE
machine to avoid machine damage.
Safety Instructions for Machinery
OWNER’S MANUAL. Read and understand this
owner’s manual BEFORE using machine.
TRAINED OPERATORS ONLY. Untrained operators have a higher risk of being hurt or killed.
Only allow trained/supervised people to use this
machine. When machine is not being used, disconnect power, remove switch keys, or lock-out
machine to prevent unauthorized use—especially
around children. Make your workshop kid proof!
DANGEROUS ENVIRONMENTS. Do not use
machinery in areas that are wet, cluttered, or have
poor lighting. Operating machinery in these areas
greatly increases the risk of accidents and injury.
MENTAL ALERTNESS REQUIRED. Full mental
alertness is required for safe operation of machinery. Never operate under the influence of drugs or
alcohol, when tired, or when distracted.
ELECTRICAL EQUIPMENT INJURY RISKS.
You can be shocked, burned, or killed by touching
live electrical components or improperly grounded
machinery. To reduce this risk, only allow qualified
service personnel to do electrical installation or
repair work, and always disconnect power before
accessing or exposing electrical equipment.
DISCONNECT POWER FIRST.
nect machine from power supply BEFORE making adjustments, changing tooling, or servicing
machine. This prevents an injury risk from unintended startup or contact with live electrical components.
EYE PROTECTION. Always wear ANSI-approved
safety glasses or a face shield when operating or
observing machinery to reduce the risk of eye
injury or blindness from flying particles. Everyday
eyeglasses are NOT approved safety glasses.
Always discon-
-6-
Model G0678 (Mfd. Since 06/15)
Page 9
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 G0678 (Mfd. Since 06/15)
-7-
Page 10
Additional Safety for Milling Machines
You can be seriously injured or killed by getting clothing, jewelry, or long hair entangled with
rotating cutter/spindle. You can be severely cut or have fingers amputated from contact with
rotating cutters. You can be blinded or struck by broken cutting tools, metal chips, workpieces,
or adjustment tools thrown from the rotating spindle with great force. To reduce your risk of
serious injury when operating this machine, completely heed and understand the following:
UNDERSTAND ALL CONTROLS. Make sure
you understand the function and proper use of all
controls before starting. This will help you avoid
making mistakes that result in serious injury.
AVOIDING ENTANGLEMENT. DO NOT wear
loose clothing, gloves, or jewelry, and tie back
long hair. Keep all guards in place and secure.
Always allow spindle to stop on its own. DO NOT
stop spindle using your hand or any other object.
WEAR FACE SHIELD. Always wear a face shield
in addition to safety glasses. This provides more
complete protection for your face than safety
glasses alone.
USE CORRECT SPINDLE SPEED. Follow recommended speeds and feeds for each size and
type of cutting tool. This helps avoid tool breakage
during operation and ensures best cutting results.
INSPECT CUTTING TOOL. Inspect cutting tools
for sharpness, chips, or cracks before each use.
Replace dull, chipped, or cracked cutting tools
immediately.
PROPERLY SECURE CUTTER. Firmly secure
cutting tool or drill bit so it does not fly out of spindle during operation.
POWER DISRUPTION. In the event of a local
power outage during operation, turn spindle
switch OFF to avoid a possible sudden startup
once power is restored.
CLEAN MACHINE SAFELY. Metal chips or shavings can be razor sharp. DO NOT clear chips
by hand or compressed air that can force chips
farther into machine—use a brush or vacuum
instead. Never clear chips while spindle is turning.
SECURE WORKPIECE TO TABLE. Clamp workpiece to table or secure in a vise mounted to table,
so workpiece cannot unexpectedly shift or spin
during operation. NEVER hold workpiece by hand
during operation.
PROPERLY MAINTAIN MACHINE.Keep
machine in proper working condition to help
ensure that it functions safely and all guards and
other components work as intended. Perform routine inspections and all necessary maintenance.
Never operate machine with damaged or worn
parts that can break or result in unexpected movement during operation.
DISCONNECT POWER FIRST. To reduce risk of
electrocution or injury from unexpected startup,
make sure mill/drill is turned OFF, disconnected
from power, and all moving parts have come to
a complete stop before changing cutting tools or
starting any inspection, adjustment, or maintenance procedure.
REMOVE CHUCK KEY & SPINDLE TOOLS.
Always remove chuck key, drawbar wrench, and
other tools used on the spindle immediately after
use. This will prevent them from being thrown by
the spindle upon startup.
-8-
Model G0678 (Mfd. Since 06/15)
Page 11
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.
or equipment damage
may occur if machine is
not properly grounded
and connected to 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.
This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following 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.)
property, consult an electrician if you are
unsure about wiring practices or electrical
codes in your area.
-9-
Page 12
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:
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.
No adapter should be used with plug. If
plug does not fit available receptacle, or if
process. DO NOT connect to power until
Grounding Instructions
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.
The power cord and plug specified under “Circuit
Requirements for 220V”
has an equipment-grounding wire and a grounding prong. The plug must only be inserted into
a matching receptacle (outlet) that is properly
installed and grounded in accordance with all
local codes and ordinances (see figure below).
on the previous page
GROUNDED
6-15 RECEPTACLE
Current Carrying Prongs
6-15 PLUG
Serious injury could occur if you connect
machine to power before completing setup
instructed later in this manual.
Grounding Pin
Figure 2. 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.
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.
The following items are needed, but not included,
for the setup/assembly of this machine.
Needed for Setup
This machine presents
serious injury hazards
to untrained users. Read
through this entire manual to become familiar with
the controls and operations before starting the
machine!
Wear safety glasses during
the entire setup process!
• External Retaining Ring Pliers ................... 1
• Safety Glasses ........................ 1 Per Person
• Lifting Straps
(rated for at least 1500 lbs.) ........................ 2
• Power Lifting Equipment
(rated for at least 1500 lbs.) ........................ 1
• Machine Mounting Hardware ..... As Needed
• Cleaning Solvent & Rags ........... As Needed
HEAVY LIF T!
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.
Like all machinery there is potential danger
when operating this machine. Accidents are
frequently caused by lack of familiarity or
failure to pay attention. Use this machine
with respect and caution to decrease the
risk of operator injury. If normal safety precautions are overlooked or ignored, serious
personal injury may occur.
Model G0678 (Mfd. Since 06/15)
Unpacking
If items are damaged
call us immediately at (570) 546-9663.
Save all packaging materials until
No list of safety guidelines can be complete.
Every shop environment is different. Always
consider safety first, as it applies to your
individual working conditions. Use this and
other machinery with caution and respect.
Failure to do so could result in serious personal injury, damage to equipment, or poor
work results.
-11-
Page 14
Inventory
The following is a list of items shipped with your
machine. Before beginning setup, lay these items
out and inventory them.
If any non-proprietary parts are missing (e.g. a
nut or a washer), we will gladly replace them; or
for the sake of expediency, replacements can be
obtained at your local hardware store.
The unpainted surfaces of your machine are
coated with a heavy-duty rust preventative that
prevents corrosion during shipment and storage.
This rust preventative works extremely well, but it
will take a little time to clean.
Be patient and do a thorough job cleaning your
machine. The time you spend doing this now will
give you a better appreciation for the proper care
of your machine's unpainted surfaces.
There are many ways to remove this rust preventative, but the following steps work well in a wide
variety of situations. Always follow the manufacturer’s instructions with any cleaning product you
use and make sure you work in a well-ventilated
area to minimize exposure to toxic fumes.
Before cleaning, gather the following:
• Disposable rags
• Cleaner/degreaser (WD•40 works well)
• Safety glasses & disposable gloves
• Plastic paint scraper (optional)
Basic steps for removing rust preventative:
1.
2. Coat the rust preventative with a liberal
amount of cleaner/degreaser, then let it soak
3.
off easily. If you have a plastic paint scraper,
scrape off as much as you can first, then wipe
4.
then coat all unpainted surfaces with a quality
Box 1 (Figure 3) Qty
A. Cap Screws M6-1 x 25 ............................... 3
B. Handwheel Handles ................................... 3
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.
A
B
D
Figure 3. Model G0678 inventory.
C
NOTICE
Put on safety glasses.
for 5–10 minutes.
Wipe off the surfaces. If your cleaner/degreas-
er is effective, the rust preventative will wipe
off the rest with the rag.
Repeat Steps 2–3 as necessary until clean,
metal protectant to prevent rust.
-12-
NOTICE
Avoid harsh solvents like acetone or brake
parts cleaner that may damage painted surfaces. Always test on a small, inconspicuous location first.
Model G0678 (Mfd. Since 06/15)
Page 15
Site Considerations
Floor Load
Refer to the Machine Data Sheet on Page 4 for
the weight and footprint specifications of your
machine. Some residential floors may require
additional reinforcement to support both the
machine and operator.
Placement Location
Consider existing and anticipated needs, size of
material to be processed through each machine,
and space for auxiliary stands, work tables or
other machinery when establishing a location for
your new machine. See Figure 4 for the minimum
working clearances.
Moving & Placing
Base Unit
The Model G0678 is a
heavy machine. Serious
personal injury may
occur if safe moving
methods are not used.
To be safe, get assistance and use power
equipment rated for at
least 1500 lbs. to move
the shipping crate and
remove the machine
from the crate.
To move and place your mill:
68"
Figure 4. Minimum working clearances.
Children and visitors may be
seriously injured if unsupervised around this machine.
Lock entrances to the shop
or disable start switch or
power connection to prevent
unsupervised use.
45"
After removing the crate from the shipping
1.
pallet, wrap lifting straps around the turret, as
shown in Figure 5, and securely attach them
to your power lifting equipment.
Lifting Straps
Turret
Figure 5. Positioning the lifting straps.
Model G0678 (Mfd. Since 06/15)
-13-
Page 16
2. Use a 1⁄2" wrench to unbolt the mill from the
pallet.
With assistance to steady the machine, lift
3.
it just enough to clear the pallet and floor
obstacles, then move it to the prepared location.
When mounting the machine to the floor, use
4.
a precision level to make sure the table is
level from side-to-side and front-to-back.
Bolting to Concrete Floors
Anchor studs and lag shield anchors with lag
bolts (see Figure 6) are two popular methods for
anchoring an object to a concrete floor. We suggest you research the many options and methods
for mounting your machine and choose the best
that fits your specific application.
Note: If necessary, use shims to make sure
there are no gaps between the base and the
floor to avoid cracking or warping the cast
iron.
NOTICE
We strongly recommend securing your
machine to the floor if it is hardwired to the
power source. Consult with your electrician
to ensure compliance with local codes.
Mounting to Shop
Floor
Although not required, we recommend that you
mount your new machine to the floor. Because
this is an optional step and floor materials may
vary, floor mounting hardware is not included.
Generally, you can either bolt your machine to
the floor or mount it on machine mounts. Both
options are described below. Whichever option
you choose, it is necessary to level your machine
with a precision level.
Anchor Stud
Lag Shield Anchor & Bolt
Figure6. Typical fasteners for mounting to
concrete floors.
Using Machine Mounts
Using machine mounts, shown in Figure 7, gives
the advantage of fast leveling and vibration reduction. The large size of the foot pads distributes
the weight of the machine to reduce strain on the
floor.
NOTICE
Anchor studs are stronger and more permanent alternatives to lag shield anchors;
however, they will stick out of the floor,
which may cause a tripping hazard if you
decide to move your machine.
-14-
Figure7. Machine mount example.
Model G0678 (Mfd. Since 06/15)
Page 17
Assembly
The machine must be fully assembled before it
can be operated. Before beginning the assembly
process, refer to
all
goes smoothly, first clean any
ered or coated in heavy-duty rust preventative (if
applicable).
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
Serious injury or death can result from
Needed for Setup and gather
listed items. To ensure the assembly process
parts that are cov-
To assemble mill:
Test Run
Troubleshooting
Secure three handles to handwheels with the
1.
M6-1 x 25 cap screws, as shown in Figure 8.
Handle
Figure 8. Handle attached to handwheel.
2.
Use external retaining ring pliers to remove
retaining ring from end of vertical crank
screw, reverse crank handle, then re-install
retaining ring (see Figure 9).
The Test Run consists of verifying the following:
1) The motor powers up and runs correctly, and 2)
the E-stop button safety feature works correctly.
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.
may result in malfunction or unexpected results that can lead to serious injury,
death, or machine/property damage.
To test run machine:
Retaining Ring
Figure 9. Vertical crank handle properly
installed.
Model G0678 (Mfd. Since 06/15)
Clear all setup tools away from machine.
1.
2. Make sure machine is lubricated (refer to
Lubrication on Page 26 for detailed instruc-
tions).
Press Emergency Stop button in.
3.
4. Connect machine to power by inserting power
cord plug into a matching receptacle.
-15-
Page 18
5.
Twist Emergency Stop button clockwise until
it springs out (see Figure 10). This resets the
switch so the machine can start.
Figure 10. Resetting the switch.
Spindle Break-In
NOTICE
Successfully complete the spindle break-in
procedure to avoid rapid wear of spindle
components when placed into operation.
It is essential to closely follow the proper break-in
procedures to ensure trouble-free performance of
your mill.
Press ON button to turn machine ON. Verify
6.
motor starts up and runs smoothly without
any unusual problems or noises.
7. With machine still running, use speed dial to
decrease/increase spindle speed.
Press Emergency Stop button to turn machine
8.
OFF.
WITHOUT resetting Emergency Stop button,
9.
try to start machine by pressing the ON button. The machine should not start.
— If the machine does not start, the safety
feature of the Emergency Stop button is
working correctly. Congratulations! The
Test Run is complete.
— If the machine does start, immediately
turn it OFF and disconnect power. The
safety feature of the Emergency Stop button is NOT working properly and must be
replaced before further using the machine.
To perform spindle break-in procedure:
Turn the machine ON, then use the speed
1.
dial to adjust the spindle speed to approximately 200 RPM.
Let the mill run at this speed for 20 minutes,
2.
then turn the spindle OFF and wait for it to
stop.
Use the spindle direction switch on the con-
3.
trol panel to reverse the spindle direction,
then turn the mill ON and let it run for another
20 minutes.
Set the spindle speed at approximately 1800
4.
RPM, then repeat Steps 2–3.
Turn the mill OFF. The spindle break-in is
5.
now complete and the machine is ready for
operation.
-16 -
Model G0678 (Mfd. Since 06/15)
Page 19
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 isnot intended to be an instructional guide. To learn
more about specific operations, read this entire
manual,
training from experienced
machine operators
outside of this manual by reading "how-to" books,
trade magazines, or websites.
To reduce your risk of
serious injury, read this
entire manual BEFORE
Operation Overview
machine controls/components
are easier to understand.
seek additional
, and do additional research
using machine.
Basic Controls
Refer to Figure 11 and the following descriptions
to understand the basic controls of your mill.
A
F
Figure 11. Control panel.
A. Power Lamp: Lights when there is power to
the machine.
B
E
C
D
To reduce risk of eye or face injury from
flying chips, always wear approved safety
glasses and a face shield when operating
this machine.
If you are not experienced with this type
of machine, WE STRONGLY RECOMMEND
that you seek additional training outside of
this manual. Read books/magazines or get
formal training before beginning any projects. Regardless of the content in this section, Grizzly Industrial will not be held liable
for accidents caused by lack of training.
Model G0678 (Mfd. Since 06/15)
Direction Switch: Controls the direction of
B.
spindle rotation.
C. Digital Speed Readout: Displays the spindle
speed in revolutions per minute (RPM).
Speed Dial: Controls the spindle speed.
D.
E-Stop Button: Turns the spindle OFF. You
E.
must twist this button clockwise
pops out before restarting the spindle with the
ON button.
Note: Pressing this button DOES NOT dis-
connect the mill from power.
ON Button: Turns the spindle ON when
F.
there is power to the machine and the stop
button is not pushed in.
so that it
-17-
Page 20
Table Movement
Your mill table has three paths of movement controlled by the corresponding handwheels or crank
(see Figure 12): 1) Longitudinal (X-axis), 2) cross
feed (Y-axis), and 3) vertical (Z-axis).
Knee Lock
Logitudinal (X-Axis)
or Left & Right
Cross Feed
(Y-Axis) or
In & Out
Vertical (Z-Axis) or
Up & Down
Figure 12. The three movement paths of the mill
table.
The graduated dials are marked in increments
of 0.001", with a full revolution moving the table
0.125".
Locks
Use the table, saddle, and knee locks shown in
Figures 13 –14 to secure the table in position.
Saddle Lock
Figure 14. Saddle and knee locks.
Limit Stops
Position the limit stops along the limit stop tracks
to confine the distance the table or saddle can
travel (see Figures 15–16).
Always keep the table locked in place unless
controlled movement is required for your
operation. Unexpected table movement during operations could cause the cutter to
bind with the workpiece resulting in damage
to the cutter and workpiece, and possible
personal injury.
Head Rotation
The head rotates 90° from left to right (see
Figure 17).
To rotate the head left or right:
DISCONNECT THE MILL FROM POWER!
1.
2. Loosen the four locking hex nuts on either
side of the turret (see Figure 18).
Locking Hex Nuts (2 of 4)
Head Rotation
Scale
Figure 18. Head rotation locking hex nuts (2 of 4
shown).
Figure 17. Head rotated 45° to the left.
3. Rotate the head to the left or right and use
the head rotation scale to determine the
angle of rotation.
Re-tighten the four locking hex nuts to secure
4.
the head.
Always lock the head firmly in place after
adjusting the rotation. Unexpected movement of the head during operations could
cause the cutter to bind with the workpiece
causing damage to the cutter and workpiece,
and possible personal injury.
Model G0678 (Mfd. Since 06/15)
-19 -
Page 22
Turret Rotation
The turret rotates 360° around the column (see
Figure 19).
Always lock the turret firmly in place after
adjusting the rotation. Unexpected movement of the head during operations could
cause the cutter to bind with the workpiece
causing damage to the cutter and workpiece,
and possible personal injury.
3. Rotate the head and turret around the column
to the left or right and use the turret rotation
scale to determine the amount of rotation.
Re-tighten the three locking hex nuts to
4.
secure the head and turret in place.
-20-
Model G0678 (Mfd. Since 06/15)
Page 23
Setting Spindle
Cutting Speed (FPM) x 12
*
Recommended
Tool Dia. (in inches) x 3.14
=
Spindle
Speed
(RPM)
*
Double if using carbide cutting tool
Speed
Setting Spindle Speed
1. Rotate the speed dial all the way to the left,
setting the startup spindle speed close to
zero.
To select the correct spindle speed (RPM) for your
milling operation, you will need to: 1) Determine
the spindle speed needed for your workpiece, and
2) set the speed dial for the calculated speed.
Calculating Spindle Speed
1. Use the table in Figure 21 to determine the
cutting speed or surface feet per minute
(SFM) required for your workpiece material.
Cutting Speeds for High Speed Steel (HSS)
Cutting Tools
Workpiece MaterialCutting Speed (SFM)
Aluminum & alloys300
Brass & Bronze150
Copper100
Cast Iron, soft80
Cast Iron, hard50
Mild Steel90
Cast Steel80
Alloy Steel, hard40
Tool Steel50
Stainless Steel60
Titanium50
Plastics300-800
Wood300-500
Note: For carbide cutting tools, double the cutting
speed. These values are a guideline only. Refer to
the MACHINERY'S HANDBOOK for more detailed
information.
Figure 21. Cutting speed table for HSS cutting
tools.
Note: This precaution avoids unexpected
high speed startup of the spindle.
Use the direction switch to select the direc-
2.
tion of spindle rotation, turn the spindle ON,
then rotate the speed dial until the calculated
spindle speed is displayed on the digital readout on the control panel (see Figure 22).
Direction
Switch
Digital
Readout
Speed
Dial
Figure 22. Spindle direction switch, speed dial,
and digital readout.
2.
Measure the diameter of your cutting tool in
inches.
Use the following formula to calculate the
3.
required spindle speed (RPM) for your operation:
Model G0678 (Mfd. Since 06/15)
-21-
Page 24
Downfeed Controls
A. Quill Dog: Moves with the quill. Use the
pointer on the side with the downfeed scale
to determine the depth of downfeed.
Refer to Figures 23–24 and the following descrip-
tions to understand the functions of the downfeed
controls that affect the travel of the quill, spindle,
an d cutter.
A
B
E
Figure 23. Downfeed controls viewed from the
right side.
H
D
F
C
Downfeed Scale: Displays in inches the
B.
amount of quill travel.
C. Coarse Downfeed Handle: When this han-
dle is enabled with the downfeed selector, it
raises/lowers the quill quickly.
D. Quill Lock: Locks the quill in place but does
not affect spindle rotation.
E. Downfeed Stop & Lock: Stops downfeed
travel when the quill dog reaches this point. Set
the stop at any position along the downfeed
scale, then secure it in place by tightening the
lock up to it.
F. Graduated Scale: Displays quill travel in
0.001" increments when the fine downfeed
handwheel is used. One full revolution represents 0.080" of quill travel.
G. Fine Downfeed Handwheel: When this
handwheel is enabled with the downfeed
selector, it raises/lowers the quill in small
increments.
H. Downfeed Selector: Enables either the
coarse or fine downfeed control. Tighten
the selector to enable the fine downfeed
handwheel, and loosen it to enable the
coarse downfeed handle.
Figure 24. Downfeed controls viewed from the
left side.
-22-
G
Model G0678 (Mfd. Since 06/15)
Page 25
Loading/Unloading
Tooling
Your mill is equipped with a 7⁄16"-20 x 12 3⁄8"
drawbar (see Figure 25).
Adjustment
Hex Nut
Open the V-belt cover, rotate the adjustment
3.
hex nut to the top of the drawbar, then place
the drawbar through the top of the spindle
(see Figure 26).
the mating surfaces of the spindle and tool
tapers.
Cutting tools are sharp and can quickly injure your hands. Always protect your
hands when handling cutting tools.
4. Push the tool firmly into the spindle taper to
seat it, then while holding it in place with one
hand, thread the drawbar into the tool.
To fully seat the tool into the spindle, tighten
5.
the drawbar adjustment hex nut down to draw
the tool up only until it is snug.
Note: Over-tightening the drawbar could
make removing the tool difficult.
Unloading Tooling
1. DISCONNECT THE MILL FROM POWER!
2. Keep one hand on the tool, loosen the adjust-
ment hex nut, then completely unthread the
drawbar.
— If the tool does not release from the spindle
when the drawbar unthreaded, turn the
drawbar back into the tool one or two
threads, then tap the top of the drawbar
with a dead-blow hammer or rubber mallet
until the tool releases.
Model G0678 (Mfd. Since 06/15)
-23-
Page 26
ACCESSORIES
Installing unapproved accessories may
order online atwww.grizzly.comor call1-800-523-4777
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.
H6087—2-Axis Digital Readout (8" x 20")
H7848—3-Axis Digit al Readout (8" x 20" x
You will be amazed at the list of features these
DROs include: selectable resolution down to
µm, absolute/incremental coordinate display, arc
5
function, line of holes function, angled cuts function, 199 user-defined datum points, centering/
cutter offset, double sealed scales, inches/millimeters, calculator with trig functions, and linear
error compensation.
Moly-D oils are some of the best we've found for
maintaining the critical components of machinery
because they tend to resist run-off and maintain
their lubricity under a variety of conditions—as
well as reduce chatter or slip. Buy in bulk and
save with 1- or 5-gallon quantities.
T23962T23963T26685
Figure 28. ISO 68 and ISO 32 machine oil.
T10063—Milling Vise 125⁄16" x 69⁄16"
T10064—Milling Vise 17
• Ultra precise in flatness, parallelism, and
verticality.
• Anti-lift mechanism ensures the workpiece
does not lift when jaws are tightened.
• Ductile iron body.
• Flame hardened vise bed and jaws.
• Sealed bearing system.
• 8200 lbs. of clamping pressure.
1
⁄8" x 83⁄4"
Figure 27. Digital readouts.
Figure 29. T10064 Milling Vise.
-24-
Model G0678 (Mfd. Since 06/15)
Page 27
G9299—10" Yuasa-Type Rotary Table
order online atwww.grizzly.comor call1-800-523-4777
This high precision rotary table features extradeep coolant channels, dual positive action locks,
very low profiles, 10 second vernier scales, gear
drives with oil immersion and satin chrome dials.
See the current Grizzly catalog for full specifications. Features: 4.330" overall height (horizontal),
6.750" height to center hole (vertical), #3 Morse
Taper, 0.465" T-slot width, and 117 lb. approximate
shipping weight.
This power feed has all the torque needed for
those milling machines with the big tables. The
infinitely adjustable speed control provides finishes not possible with manual control. Includes
bi-directional limit switch with stops, mounting
bracket, bevel gear and motor. Specs: 4–160
RPM, 160 RPM rapid switch, 650 in/lb. maximum
torque, 110V 60Hz motor, 4:8:1 bevel drive gear.
Figure 33. H8371 Power Feed.
Model G0678 (Mfd. Since 06/15)
-25-
Page 28
SECTION 6: MAINTENANCE
To reduce risk of shock or
accidental startup, always
disconnect machine from
power before adjustments,
maintenance, or service.
Schedule
For optimum performance from this machine, this
maintenance schedule must be strictly followed.
Ongoing
To minimize your risk of injury and maintain proper
machine operation, shut down the machine immediately if you ever observe any of the items below,
and fix the problem before continuing operations:
Cleaning &
Protecting
Use a brush and shop vacuum to remove chips
and debris from the mill. Never blow off the mill
with compressed air, as this will force metal chips
deep into the mechanisms and may injure yourself or bystanders.
Wipe built-up grime from the mill with a rag and a
mild solvent. Remove any rust from the unpainted
cast iron surfaces of your mill, then treat them with
regular applications of products such as G96
Gun Treatment, SLIPIT
Section 5: Accessories on Page 24 for more
details).
®
, or Boeshield® T-9 (see
®
• Loose mounting bolts.
• Worn or damaged tooling.
Worn or damaged wires.
•
Any other unsafe condition.
•
Every 8 Hours of Operation:
• Use the one-shot oiler (Page 27).
• Lubricate quill gearing (Page 27).
• Clean the mill.
Every 40 Hours of Operation:
• Lubricate the vertical bevel gears (Page 27).
• Lubricate the longitudinal, cross, and vertical
leadscrews (Page 28).
Lubrication
Your mill has numerous moving metal-to-metal
contacts that require proper lubrication to help
ensure efficient and long-lasting mill operation.
Other than lubrication points covered in this section, all other bearings are internally lubricated
and sealed at the factory. Simply leave them
alone unless they need to be replaced.
Before adding lubricant, clean debris and grime
from the devices to avoid contaminating the new
lubrication.
DISCONNECT THE MILL FROM POWER
BEFORE PERFORMING LUBRICATION!
-26-
Model G0678 (Mfd. Since 06/15)
Page 29
NOTICE
Follow the lubrication practices outlined in
this manual. Failure to do so could lead to
premature failure of your mill and will void
the warranty.
One-Shot Oiler
LubricantFrequencyQty
ISO 68 Lubricant or
Equivalent
The oil lines running from the one-shot oiler feed
lubrication to the ways of the column (knee),
saddle, and table.
Use the sight glass on the front of the oiler to
make sure it is full, then pull the handle (see
Figure 34) and release it to send the lubricant
through the lines.
Every
8 Hours
of Operation
1
Pump
Quill Gearing
LubricantFrequencyQty
ISO 68 Lubricant or
Equivalent
Lift the cap of the oil cup shown in Figure 35 to
add the lubricant.
Quill Gearing
Oil Cup
Every
8 Hours
of Operation
5
Drops
Fill Cap
Figure 34. One-shot oiler.
Oil Line
One-Shot
Pump
Handle
Figure 35. Quill gearing oil cup.
Vertical Bevel Gears
LubricantFrequencyQty
NLGI #2 GreaseEvery
40 Hours
of Operation
Raise the knee up to access the vertical bevel
gears underneath the saddle, then clean and
lubricate the bevel gears shown in Figure 36.
Bevel Gears
Thin
Coat
Model G0678 (Mfd. Since 06/15)
Figure 36. Vertical bevel gears.
-27-
Page 30
Leadscrews
LubricantFrequencyQty
NLGI #2 GreaseEvery
40 Hours
of Operation
Use a shop rag and mineral spirits to clean away
debris and grime from the longitudinal, cross, and
elevation leadscrews and leadscrew nuts. Apply
a thin coat of lubricant to the leadscrews, then
move the table through the full range of movement for each leadscrew to distribute the grease
(see Figures 37–38).
Thin
Coat
V-Belt Tensioning
Power is transferred from the motor to the spindle
with a V-belt. With normal use, this belt will gradually stretch over time. When it does, perform the
following procedures to re-tension it.
approximately 1" of deflection when moderate pressure is applied midway between the
pulleys (see Figure 40), then re-tighten the
jam nut and close the V-belt cover.
Adjustment
Bolt & Jam
Nut
Figure 38. Cross and vertical leadscrews.
-28-
Approximately 1"
Deflection
Figure 40. Checking for belt deflection.
Model G0678 (Mfd. Since 06/15)
Page 31
Review the troubleshooting procedures in this section if a problem develops with your machine. If you need
the
serial number and manufacture date of your machine before calling.
SECTION 7: SERVICE
replacement parts or additional help with a procedure, call our Technical Support. Note: Please gather
Troubleshooting
Motor & Electrical
SymptomPossible CausePossible Solution
Machine does not
start or a breaker
trips.
Machine stalls or is
overloaded.
Machine has
vibration or noisy
operation.
1. Stop button is pushed in or is at fault.
2. ON button is at fault.
3. Plug/receptacle is at fault or wired
incorrectly.
4. Power supply is switched OFF or is at
fault.
5. Motor connection wired incorrectly.
6. Motor windings or motor is at fault.
1. Machine is undersized for the task.
2. Workpiece alignment is poor.
3. Dull or incorrect cutting tool.
4. Motor connection is wired incorrectly.
5. Plug/receptacle is at fault.
6. Pulley/sprocket slipping on shaft.
7. Motor bearings are at fault.
8. Motor has overheated.
9. Motor is at fault.
1. Tool holder or cutter is at fault.
2. Workpiece alignment is poor.
3. Motor or component is loose.
4. Pulley is loose.
5. Machine is incorrectly mounted or sits
unevenly.
6. Motor fan is rubbing on fan cover.
7. Motor bearings are at fault.
1. Turn the stop button clockwise until it pops out;
replace if faulty.
2. Replace faulty ON button.
3. Test for good contacts; correct the wiring.
4. Ensure hot lines have correct voltage on all legs and
main power supply is switched ON.
5. Correct motor wiring connections (Page 34).
6. Replace motor.
1. Use smaller sharp tooling; reduce the feed rate;
reduce the spindle RPM; use coolant.
2. Eliminate workpiece binding; use vise or clamps as
required for workpiece alignment control.
3. Use sharp and correct cutting tool for the operation.
4. Correct motor wiring connections (Page 34).
5. Test for good contacts; correct the wiring.
6. Replace loose pulley/shaft.
7. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
8. Clean off motor, let cool, and reduce workload.
9. Test and repair or replace.
1. Replace out-of-round tool holder; replace/resharpen
cutter; use appropriate feed rate and cutting RPM.
2. Eliminate workpiece binding; use vise or clamps as
required for workpiece alignment control.
3. Inspect/replace stripped or damaged bolts/nuts, and
re-tighten with thread locking fluid.
4. Realign/replace shaft, pulley, setscrew, and key as
required.
5. Tighten/replace mounting bolts in floor; relocate/
shim machine.
6. Replace dented fan cover or fan.
7. Test by rotating shaft; rotational grinding/loose shaft
requires bearing replacement.
Model G0678 (Mfd. Since 06/15)
-29-
Page 32
Operation
SymptomPossible CausePossible Solution
Tool slips in collet.1. Collet is not fully drawn into spindle taper.
2. Wrong size collet.
3. Debris on collet or spindle mating surface.
4. Excessive depth of cut.
Breaking tooling.1. Spindle speed/feed rate too fast.
2. Tooling getting too hot.
3. Excessive depth of cut.
Machine is loud
when cutting;
overheats or bogs
down in the cut.
Workpiece vibrates
or chatters during
operation.
Table hard to move.
Bad surface finish.
1. Excessive depth of cut.
2. Dull tooling.
3. Feed rate too fast.
1. Locks not tight.
2. Workpiece not securely clamped to table or
mill vise.
3. Tooling not secure or is damaged.
4. Spindle speed/feed rate too fast.
5. Gibs are too loose.
1. Locks are tightened down.
2. Chips have loaded up on the ways.
3. Ways are dry and in need of lubrication.
4. Gibs are too tight.
1. Wrong spindle speed/feed rate.
2. Dull/damaged tooling; wrong tooling for
operation.
3. Wrong spindle rotation for tooling.
4. Workpiece not securely clamped to table or
mill vise.
5. Gibs are too loose.
1. Snug up drawbar.
2. Use correct collet for shank diameter.
3. Remove oil and debris from collet and spindle
mating surfaces, then re-install.
4. Decrease depth of cut and allow chips to clear.
1. Use correct spindle RPM and feed rate (Page 21).
2. Use coolant; reduce spindle RPM/feed rate.
3. Decrease depth of cut and allow chips to clear.
1. Decrease depth of cut and allow chips to clear.
2. Use sharp tooling.
3. Decrease feed rate.
1. Tighten all locks on mill that are not associated with
movement for the operation.
2. Check that clamping is tight and sufficient for the
operation; make sure mill vise is tight to table.
3. Secure tooling; replace if damaged.
4. Use correct spindle RPM and feed rate (Page 21).
5. Adjust gibs properly (Page 31).
1. Fully loosen locks needed for movement.
2. Frequently clean away chips that load up during
operations.
3. Use one-shot oiler to lubricate ways (Page 27).
4. Adjust gibs properly (Page 31).
1. Use correct spindle RPM and feed rate (Page 21).
2. Sharpen/replace tooling; use correct tooling for
operation.
3. Check for proper spindle rotation for tooling.
4. Check that clamping is tight and sufficient for the
operation; make sure mill vise is tight to table.
5. Adjust gibs properly (Page 31).
-30-
Model G0678 (Mfd. Since 06/15)
Page 33
Adjusting Gibs
Gibs control the accuracy of the table movements
along the ways. Tight gibs make the movements
more accurate, but harder to move. Loose gibs
make the movements sloppy, but easier to move.
The goal of gib adjustment is to remove unnecessary sloppiness without causing the ways to
bind.
NOTICE
Excessively loose gibs may cause poor
workpiece finishes, and may cause undue
wear of sliding surfaces and ways. Overtightening the gibs may cause premature
wear of these sliding devices.
Each sliding surface for the table, saddle, and
knee has a tapered gib that is sandwiched
between the stationary and moving surfaces. The
saddle and knee have a gib on both sides. There
are two adjustment screws, one on each end of
each gib, that move the tapered gib back and
forth increasing or decreasing friction of the sliding surfaces.
Table Gib Adjustment
Screw (1 of 2)
Figure 41. Table gib adjustment screw (1 of 2).
Saddle Gib Adjustment
Screw (1 of 2)
DISCONNECT THE MILL FROM POWER
BEFORE ADJUSTING THE GIBS!
Loosen one adjustment screw and tighten the
other the same amount to move the gib until you
feel a slight drag in that path of movement.
Refer to Figures 41–43 for the locations of the
table, saddle, and knee gib adjustment screws.
Figure 42. Saddle gib adjustment screw (1 of 2).
Knee Gib Adjustment Screw
(1 of 2)
Figure 43. Knee gib adjustment screw (1 of 2).
Model G0678 (Mfd. Since 06/15)
-31-
Page 34
Adjusting Backlash
Gap
Cap
Screws
Gap
Gap
Cap
Screws
Cap
Screw
Leadscrew backlash is the amount of motion the
leadscrew rotates before the device begins to
move. Leadscrews always have a certain amount
of backlash that will increase with wear. Generally,
0.005"–0.010" of backlash is acceptable.
The backlash of the longitudinal and cross
leadscrew can be adjusted by changing the gap
in the leadscrew nuts (see Figures 44–45).
Longitudinal
Leadscrew Nut
Cross
Leadscrew Nut
Figure 45. Cross leadscrew nut.
Use a 5mm hex wrench to tighten or loosen
the cap screws on the leadscrew nuts shown in
Figures 44–45, then test the amount of backlash
by slowly rocking the handwheels back-and-forth.
Figure 44. Longitudinal leadscrew nut.
-32-
Model G0678 (Mfd. Since 06/15)
Page 35
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 G0678 (Mfd. Since 06/15)
-33-
Page 36
Digital RPM
Readout
KP-603A
RHYMEBUS
Wiring Diagram
V2
1
6
4
3NO
12
2
2
1NC
Direction Switch
13
2
Power
Lamp 30V
6
12
0
2
V1
V3
2
13
0
3
L1
L2
1
2
Speed
3
Dial
Inverter
Rhymebus
RM6S2-2001B1
R/L1
S/L2 UVP PR
Ground
W
V1
1NC
2
1
V2
V3
Control Panel
(viewed from behind)
KP-603A
Stop Button
AI
X6
X4
X2
3NO
4
ON Button
3
220V Motor Wiring
Junction Box
Tc
Tb
Ta
GNDV+X5X3
11
V1
V2
V3
13
12
1
2
3
X1
0
6
3
2
1
Ground
-34-
GND
0
A1A2
1
0
1L13L25L3 13NO
Contactor NHD C-12D
2T14T26T3 14NO
A2
L1
L2
READ ELECTRICAL SAFETY
ON PAGE 33!
11
Arita MR20
6
0
Relay
220V
3
2
3
3
NEMA 6-15 Plug
(As Recommended)
GND
G
HotHot
Model G0678 (Mfd. Since 06/15)
Page 37
Electrical Component Wiring
Figure 46. Control panel wiring.
Figure 47. Motor junction box.
Figure 48. Inverter, contactor, and relay wiring.
Model G0678 (Mfd. Since 06/15)
READ ELECTRICAL SAFETY
ON PAGE 33!
-35-
Page 38
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.
Head
1
2
60
67
42
22
43
41
44
59
55
45
56
46
47
32
46
52
40
54
33
48
21
53
36
34
38
37
57
51
49
35
58
50
39
24
7
23
26
4
5
6
25
27
28
29
12
13
10
11
21
14
61
15
63
16
17V2
64
18
65
10
62
66
8
9
22
27
30
30-1
31
-36-
BUY PARTS ONLINE AT GRIZZLY.CO M !
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Model G0678 (Mfd. Since 06/15)
Page 39
Head Parts List
REF P ART #DES CRIPTIO NREF P ART #DES CRIPTIO N
1P0678001SPANNE R NUT36P0678036DOWNFEE D SCREW
2P0678002SPANNER LOCK WASHER37P0678037DOWNFEE D LOCK RI NG
4P0678004SPLINE SLEEVE38P0678038DOWNFEE D STOP RI NG
5P0678005BEARING COVER39P0678039QUI LL DOG
6P0678006BALL BEARING 6209ZZ40P0678040PHLP HD SCR M5-.8 X 15
7P0678007EXT RETA I NI NG RI NG 45 MM41P0678041FINE DOWNFEE D HANDWHEEL
8P0678008INT RETA I NING RI NG 85 MM42P0678042HANDLE
9P0678009HEAD CAS TI NG43P0678043GRADUA TED DI AL
10P0678010HEX NUT 1/ 2-1344P0678044LOCK I NG THUMB SCREW
11P0678011LOCK WASHER 1/ 245P0678045HEX NUT 9/ 16-12
12P0678012HEX BOLT 1/2-13 X 1-1/ 246P0678046THRUST BEARING 51102
13P0678013GEAR SHAFT47P0678047SLEEVE
14P0678014TORSI ON S PRI NG48P0678048KEY 5 X 5 X 20
15P0678015END CAP49P0678049WORM SHAFT
16P0678016EXT RE TAI NI NG RI NG 1 9MM50P0678050WORM
17V2 P0678017V2 DOWNFEED HANDLE COARSE M10-1.551P0678051COMPRESSION SPRING
18P0678018KNOB52P0678052KEY 6 X 6 X 15
21P0678021CAP SCREW M5-.8 X 1653P0678053BUSHI NG
22P0678022SET SCREW M6-1 X 854P0678054END CAP
23P0678023OI L CUP55P0678055PHLP HD SCR M5-.8 X 10
24P0678024BALL BEARI NG 6206ZZ56P0678056KNURLED KNOB
25P0678025QUI LL57P0678057PHLP HD SCR M5-.8 X 8
26P0678026SPA NNER NUT58P0678058SPECIAL KEY
27P0678027ANGULAR CONTACT BEARING 720759P0678059LOCK HANDLE
28P0678028BEARI NG SPACER LARGE60P0678060SPINDLE PULLEY
29P0678029BEARI NG SPACER SMALL61P0678061SPACER
30P0678030SPINDLE62P0678062HANDLE HUB
30-1P0678030-1SET SCREW M4-.7 X 10 63P0678063STOP PI N
31P0678031SPINDLE COLLAR64P0678064COMPRESSION SPRING
32P0678032LOCK SHAFT65P0678065FLAT WASHER 5MM
33P0678033LOCK PLUNGER LARGE66P0678066CAP SCREW M5-.8 X 25
34P0678034COMPRESSION SPRING67P0678067DRAWBAR 7/16-20 X 12-3/8
35P0678035LOCK PLUNGER SMALL
Model G0678 (Mfd. Since 06/15)
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-37-
Page 40
Drive System
REFP ART #DESCRI PTIONREFPART #DES CRIPTI ON
140
131
146
130
133
148
145
132
118
134
144
130
149
125
143V2
147
119
142
150
126
128
151
138V2
127
129
139
141
117
152
101
116
110
111V2
153
103
115
112V2
113V2
112V2
114V2
109
108
107-2
105
106
107
107-1
107-3
101P0678101KEY 5 X 5 X 40128P0678128LATCH
103P0678103SET SCREW M6-1 X 8129P0678129PHLP HD SCR M3-.5 X 8
105P0678105CAP SCREW M8-1.25 X 20130P0678130PHLP HD SCR M5-.8 X 8
106P0678106FLAT WA SHER 8 MM131P0678131HEX NUT M5 -. 8
107P0678107MOTOR 1-1/2HP 220V 3-PH132P0678132BRACE
107-1 P0678107-1MOTO R FAN COV ER133P0678133PHLP HD SCR M5-.8 X 10
107-2 P0678107-2MOTO R FAN134P0678134HI NGE
107-3 P0678107-3MOTO R WI RI NG J UNCTI ON BO X138V2 P0678138V2 V-BELT B-60 V2.06.15
108P0678108HEX BOLT M16-2 X 75139P0678139MOTOR PULLEY
109P0678109HEX NUT M1 6-2140P0678140FLAT WA SHER 5 MM
110P0678110MOTOR BRACKET141P0678141CONTROL BOX
111V2 P0678111V2 SQUARE BOLT M12-1.75 X 40 V2.01. 17142P0678142PHLP HD SCR M6-1 X 16
112V2 P0678112V2 LOCK WASHER 12MM V2.01. 17143V2 P0678143V2 SPINDLE SPEED READOUT V2.01. 21
113V2 P0678113V2 HEX NUT M12-1. 75 V2.01.17144P0678144CONTROL PANEL
114V2 P0678114V2 SQUARE BOLT M12-1.75 X 45 V2.01. 17145P0678145POWER LI GHT
115P0678115MOTOR MO UNT146P0678146ON BUTTO N
116P0678116PIVOT BOLT147P0678147SPEED DIAL
117P0678117TURRET148P0678148STOP BUTTON
118P0678118UPPER BELT COVER149P0678149DI RECTI ON SWI TCH
119P0678119STAR KNOB150P0678150PHLP HD SCR M3-. 5 X 25
125P0678125LOWER BELT COVER151P0678151HEX NUT M3 -. 5
126P0678126HEX BOLT M6-1 X 35152P0678152HEX WRE NCH 5MM
127P0678127FLAT WA SHER 6 MM153P0678153HEX WRE NCH 4MM
-38-
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Model G0678 (Mfd. Since 06/15)
Page 41
201
203
REF PART #DES CRIPTIONREF PART #DESCRI P TION
Table & Saddle
206
201
204
232
205
224
226
228
229
230
227
220
227
233
223
225
210
222
234
231
236
219
211
221
207
235
212
213
243
242
227
227
237
235
238
218
239
240
241
217
214
215
213
210
212
209
216
208
211
207
206
203
202
205
204
201P0678201HANDLE223P0678223HEX NUT M1 0-1 . 5
202P0678202HEX NUT 5/8-11224P0678224TABLE GIB
203P0678203SET SCREW M6-1 X 8225P0678225LIMIT BLOCK
204P0678204HANDWHEE L226P0678226PHLP HD SCR M5-.8 X 30
205P0678205GRADUA TED DI AL227P0678227GI B ADJ USTMENT S CREW
206P0678206LOCK I NG THUMB SCREW228P0678228SADDLE LOCKI NG SCREW
207P0678207CAP SCREW M6-1 X 25229P0678229TABLE LOCKING SCREW
208P0678208COLLAR230P0678230CAP SCREW M6-1 X 16
209P0678209EXT RE TAI NI NG RI NG 20MM231P0678231HE X NUT M5- . 8
210P0678210BALL BEARING 6004ZZ232P0678232PHLP HD SCR M5-.8 X 10
211P0678211CAP SCREW M6-1 X 45233P0678233WAY WIPER
212P0678212LEADSCREW BRACKET234P0678234SADDLE GIB
213P0678213KEY 5 X 5 X 20235P0678235CAP SCREW M5-.8 X 25
214P0678214LONGITUDINAL LEADSCREW236P0678236LIMIT BLOCK
215P0678215PHLP HD SCR M6-1 X 8237P0678237CROSS L EADS CREW NUT
216P0678216REAR WAY COVER238P0678238CAP SCREW M8-1.25 X 25
217P0678217WAY COVER HOLDER239P0678239SADDLE
218P0678218TABLE240P0678240STOP BLOCK
219P0678219SPA NNER NUT WAS HER241P0678241PHLP HD SCR M5-.8 X 20
220P0678220SPA NNER NUT242P0678242LONG I TUDINAL L EADS CREW NUT
221P0678221HEX BOLT M10-1.5 X 30243P0678243FLAT WA SHER 6 MM
222P0678222LI MI T S TOP
Model G0678 (Mfd. Since 06/15)
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-39-
Page 42
366
329
326
328
327
325
324
330
323
321
318
325
Knee & Base
313
314
319
316
332
315
320
334
333
320
318
318
320
317
321
321
337
321
322
326
331
304
308
316
315
338
312
315
335
317
336
310
316
311
343
307
314
309
344
345
306
307
308
348
346
347
305
341
303
350
349
365V2
363
351
364
354
361
355
357
356
353
358
360
362
359
339
-40-
BUY PARTS ONLINE AT GRIZZLY.CO M !
Scan QR code to visit our Parts Store.
301
340
Model G0678 (Mfd. Since 06/15)
Page 43
Knee & Base Parts List
REF PART #DESCRIP TIONREFP ART #DESCRI PTION
301 P0678301PHLP HD SCR M6-1 X 10334P0678334BEARING HOUSING
407P0678407MACHI NE ID LABEL414P0678414CONTROL PANEL 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.
-42-
BUY PARTS ONLINE AT GRIZZLY.CO M !
Scan QR code to visit our Parts Store.
Model G0678 (Mfd. Since 06/15)
Page 45
Page 46
Page 47
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.
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.
In the event you need to use 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.
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.
To
you can
applicable information for
take advantage of this warranty, you must register it at https://www.grizzly.com/forms/warranty, or
scan the QR code below to be automatically directed to our warranty registration page. Enter all
the product.
WARRANTY
Page 48
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