Grizzly G0796, G0797 Owner's Manual
MODEL G0796/G0797
VERTICAL MILL w/POWER
FEED & DRO
OWNER'S MANUAL
(For models manufactured since 1/18)
G0796
COPYRIGHT © AUGUST, 2015 BY GRIZZLY INDUSTRIAL, INC. REVISED MAY, 2018 (MN)
WARNING: NO PORTION OF THIS MANUAL MAY BE REPRODUCED IN ANY SHAPE
OR FORM WITHOUT THE WRITTEN APPROVAL OF GRIZZLY INDUSTRIAL, INC.
#WK17430 PRINTED IN CHINA
G0797
V2 . 0 5.18
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
Front View Identification ................................ 3
Model G0796 Headstock Identification .......... 4
Model G0797 Headstock Identification .......... 5
Controls & Components ................................. 6
G0796 Machine Data Sheet .......................... 9
G0797 Machine Data Sheet ........................ 11
SECTION 1: SAFETY ..................................... 13
Safety Instructions for Machinery ................ 13
Additional Safety for Milling Machines ......... 15
SECTION 2: POWER SUPPLY ...................... 16
SECTION 3: SETUP ....................................... 18
Needed for Setup ......................................... 18
Unpacking .................................................... 18
Inventory ...................................................... 19
Cleanup ........................................................ 20
Site Considerations ...................................... 21
Lifting & Placing ........................................... 22
Leveling ........................................................ 23
Anchoring to Floor ....................................... 23
Assembly ..................................................... 24
Power Connection........................................ 25
Test Run ...................................................... 26
Spindle Break-In .......................................... 28
Inspections & Adjustments .......................... 28
SECTION 4: OPERATIONS ........................... 29
Operation Overview ..................................... 29
Positioning Table ......................................... 30
Positioning Headstock ................................. 32
Positioning Ram ........................................... 33
Spindle Speed.............................................. 34
Spindle Downfeed ........................................ 37
Spindle Brake............................................... 41
Loading/Unloading Tooling .......................... 41
SECTION 5: ACCESSORIES ......................... 43
SECTION 6: MAINTENANCE ......................... 46
Schedule ...................................................... 46
Cleaning & Protecting .................................. 46
Lubrication ................................................... 47
Machine Storage .......................................... 50
SECTION 7: SERVICE ................................... 51
Troubleshooting ........................................... 51
Adjusting Gibs .............................................. 54
Adjusting Leadscrew Backlash .................... 55
Tramming Spindle ........................................ 57
Replacing Belts & Brake Shoes ................... 59
SECTION 8: WIRING ...................................... 64
Wiring Safety Instructions ............................ 64
G0796 Motor & Switch Wiring ..................... 65
G0797 Motor & Switch Wiring ..................... 66
SECTION 9: PARTS ....................................... 67
G0796 Main Body ........................................ 67
G0796 Table Leadscrews ............................ 69
G0796 Headstock ....................................... 70
G0796 Downfeed ......................................... 72
G0796 One Shot Oiler ................................. 75
G0796 Accessories ...................................... 76
G0796 Labels............................................... 77
G0797 Main Body ........................................ 78
G0797 Table Leadscrews ............................ 80
G0797 Headstock ........................................ 81
G0797 Headstock Gearing .......................... 83
G0797 Downfeed ......................................... 85
G0797 One Shot Oiler ................................. 88
G0797 Accessories ...................................... 89
G0797 Labels............................................... 90
WARRANTY & RETURNS ............................. 93
Model G0796/G0797 (Mfd. Since 1/18)
-1-
INTRODUCTION
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
from the
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.
Contact Info
and manufacture date
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
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.
Manufacture Date
Serial Number
-2-
Model G0796/G0797 (Mfd. Since 1/18)
Front View 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.
Headstock
(see Pages 4–5)
Work Light
X-Axis
Ball Handle
Power Feed
Limit Switch
Motor
Ram
DRO
Slotted
Work Table
X-Axis
Ball Handle
X-Axis
Power Feed
Knee
Crank
Y-Axis
Ball Handle
Model G0796/G0797 (Mfd. Since 1/18)
Mounting Point
(1 of 4)
Knee
G0797 Shown
using machine.
-3-
To reduce your risk of
serious injury, read this
entire manual BEFORE
Model G0796 Headstock Identification
Spindle
Brake
Spindle
Switch
Auto-Downfeed
Rate Selector
Fine Downfeed
Handwheel
Auto-Downfeed
Direction Pin
Fine Downfeed
Clutch Lever
Adjustable
Downfeed Stop
High/Low
Range Lever
Quill & Spindle
Belt Tension
Adjustment Lever
Motor Lock
Lever
Belt Housing
Safety Cover
Spindle Speed
Range Selector
Manual/Power
Downfeed
Selector
Coarse
Downfeed Lever
Quill Lock
Lever
Dial Indicator
Rod
-4-
using machine.
Model G0796/G0797 (Mfd. Since 1/18)
To reduce your risk of
serious injury, read this
entire manual BEFORE
Model G0797 Headstock Identification
Spindle
Brake
Spindle
Switch
Auto-Downfeed
Rate Selector
Auto-Downfeed
Direction Pin
Fine Downfeed
Handwheel
Fine Downfeed
Clutch Lever
Low-Range
Variable-Speed
Indicator
High-Range
Variable-Speed
Indicator
Variable-Speed
Handwheel
Spindle Speed
Range Selector
Manual/Power
Downfeed
Selector
Coarse
Downfeed Lever
Quill Lock
Lever
Adjustable
Downfeed Stop
Quill & Spindle
Dial Indicator
Rod
using machine.
Model G0796/G0797 (Mfd. Since 1/18)
-5-
Controls &
To reduce your risk of
serious injury, read this
entire manual BEFORE
Components
F. Spindle Speed Range Selector: Used
in conjunction with high/low range lever.
Engages back gear for low (80–325 RPM),
and disengages back gear for high (660–
2720 RPM) spindle speed ranges.
Note: When engaged, back gear reverses
spindle rotation, causing spindle switch settings to be reversed in low range (see Spindle
Switch on Page 7 for more information).
using machine.
Refer to Figures 1–5 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.
Upper Headstock (G0796)
B
A
Figure 1. Model G0796 upper headstock
controls and components.
C
D
E
F
Upper Headstock (G0797)
H
I
G
J
Figure 2. Model G0797 upper headstock
controls and components.
G. Spindle Brake Lever: Quickly stops spindle
AFTER power to spindle is turned OFF.
H. Variable-Speed Indicators: Indicate spindle
speed in high and low range.
I. Variable-Speed Handwheel: Selects desired
spindle speed within high or low range.
A. Spindle Brake Lever: Quickly stops spindle
AFTER power to spindle is turned OFF.
B. High/Low Range Lever: Selects between
low (80 RPM–325 RPM) and high (660 RPM–
2720 RPM) spindle speed ranges.
C. Belt Tension Adjustment Lever: Adjusts
V-belt tension by moving position of motor.
D. Motor Lock Lever: Locks motor position to
secure belt tension.
E. Belt Safety Cover: Protects user from entan-
glement during operation. Remove to access
V-belt when changing spindle speed.
-6-
J. Spindle Speed Range Selector: Engages
back gear for low (60 RPM–500 RPM), and
disengages back gear for high (500 RPM–
4200 RPM) spindle speed ranges.
Note: When engaged, back gear reverses
spindle rotation, causing spindle switch settings to be reversed in low range (see Spindle
Switch on Page 7 for more information).
Model G0796/G0797 (Mfd. Since 1/18)
Lower Headstock
K
T. Auto-Downfeed Rate Selector: Selects one
L
M
of the three auto-downfeed rates:
0.0015 in/rev
0.003 in/rev
0.006 in/rev
S
T
N
O
R
Figure 3. Lower headstock controls and
components (Model G0797 shown).
K. Spindle Switch: Controls forward/reverse
direction of spindle rotation.
Note: Spindle switch direction settings will
be reversed in low range due to back gear.
Therefore, in low range, FORWARD will cause
reverse spindle rotation, and REVERSE will
cause forward rotation.
L. Manual/Power Downfeed Selector: Selects
between manual and power downfeed.
M. Coarse Downfeed Lever: Quickly moves
quill downward manually and automatically
retracts spindle to top position when released.
Typically used for drilling operations.
PQ
Table
V
U
Y
AA
Z
Figure 4. Table controls and components.
U. X-Axis Ball Handle: Manually moves table
along X-axis (left and right).
V. X-Axis Locks: Tightens to prevent X-axis
table movement for increased rigidity during operations where the X-axis should not
move.
W. Y-Axis Ball Handle: Manually moves table
along Y-axis (front and back).
X
W
N. Quill Lock Lever: Locks quill in vertical posi-
tion.
O. Dial Indicator Rod: Used to hold dial test
indicator when tramming spindle.
P. Adjustable Downfeed Stop: Limits depth of
quill travel. Dial is graduated in increments of
0.001". Typically used for repeat operations.
Q. Fine/Auto Downfeed Clutch Lever:
Engages fine/auto-downfeed gears.
R. Fine Downfeed Handwheel: Manually con-
trols slow spindle downfeed for fine Z-axis
control.
S. Auto-Downfeed Direction Pin: Starts, stops,
and reverses auto-downfeed direction.
Model G0796/G0797 (Mfd. Since 1/18)
X. Knee Crank: Manually moves table along
Z-axis (up and down).
Y. Y-Axis Lock: Tightens to prevent Y-axis
table movement for increased rigidity during operations where the Y-axis should not
move.
Z. One Shot Oiler: Lubricates X-, Y-, and
Z-axis table ways.
AA. Z-Axis Lock (1 of 2): Tightens to prevent
Z-axis table movement for increased rigidity
during operations where the Z-axis should
not move.
-7-
X-Axis Power Feed Identification
The mill is equipped with a power feed unit for
X-axis table movement. Refer to Figure 5 and the
descriptions below to understand the functions of
the various components of the power feed system.
AB. Power Feed Limit Switch: Stops table
movement when either of the switch side
plungers are pressed by limit stops.
AC. Limit Stop: Restricts table movement by its
positioning along front of table.
AB
AF
AG
AH
AI
AC
AG
AH
AF
AI
AE
AE
AJ
AJ
AD
AD. Graduated Index Ring: Displays distance of
table travel in 0.001" increments, with one full
revolution equal to 0.200" of table travel.
AE. Feed/Jog Switch: In left (feed) position, it
enables power feed to operate normally.
While pressing switch to right (jog position),
table moves in selected direction until switch
is released.
In middle position ("0"), table movement is
disabled.
AF. Speed Dial: Controls speed of power feed.
Rotating dial clockwise causes table to move
faster.
AG. Direction Knob: Selects direction of table
movement. Middle position is neutral.
AH. Rapid Traverse Button: When pressed,
moves table at full speed when already in
motion.
Figure 5. X-axis power feed controls.
AI. ON/OFF Button: Turns power feed ON and
OFF.
AJ. Circuit Breaker Reset Button: Resets inter-
nal circuit breaker if unit is overloaded and
shuts down.
-8-
Model G0796/G0797 (Mfd. Since 1/18)
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL G0796 9" X 49" VERTICAL MILL WITH POWER FEED
AND DRO
Product Dimensions:
Weight............................................................................................................................................................ 2249 lbs.
Width (side-to-side) x Depth (front-to-back) x Height........................................................................... 83 x 62 x 84 in.
Footprint (Length x Width)............................................................................................................................ 41 x 27 in.
Shipping Dimensions:
Type.......................................................................................................................................................... Wood Crate
Content........................................................................................................................................................... Machine
Weight............................................................................................................................................................ 2580 lbs.
Length x Width x Height....................................................................................................................... 60 x 55 x 80 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement........................................................................................................... 220V, Single-Phase, 60 Hz
Full-Load Current Rating..................................................................................................................................... 13.8A
Minimum Circuit Size.............................................................................................................................................. 20A
Connection Type....................................................................................................................................... Cord & Plug
Power Cord Included.............................................................................................................................................. Yes
Recommended Power Cord................................................................................ "S" Type, 3-Wire, 12 AWG, 300VAC
Plug Included........................................................................................................................................................... No
Recommended Plug Type..................................................................................................................................... 6-20
Switch Type........................................................................................................................... Forward/Reverse Switch
Motors:
Main
Horsepower................................................................................................................................................ 3 HP
Phase............................................................................................................................................ Single-Phase
Amps......................................................................................................................................................... 13.8A
Speed................................................................................................................................................ 1720 RPM
Type........................................................................................................................................... TEFC Induction
Power Transfer ............................................................................................................................... V-Belt Drive
Bearings..................................................................................................... Shielded & Permanently Lubricated
Model G0796/G0797 (Mfd. Since 1/18)
-9-
Main Specifications:
Operation Info
Spindle Travel.............................................................................................................................................. 5 in.
Max Distance Spindle to Column............................................................................................................... 21 in.
Max Distance Spindle to Table............................................................................................................ 15-7/8 in.
Longitudinal Table Travel (X-Axis)............................................................................................................. 28 in.
Longitudinal Leadscrew (X-Axis)............................................................................................................... 52 in.
Cross Table Travel (Y-Axis)....................................................................................................................... 12 in.
Vertical Table Travel (Z-Axis).................................................................................................................... 16 in.
Ram Travel................................................................................................................................................ 12 in.
Turret or Column Swivel (Left /Right)................................................................................................... 360 deg.
Head Tilt (Left/Right).............................................................................................................................. 90 deg.
Head Tilt (Front/Back)............................................................................................................................ 45 deg.
Drilling Capacity for Cast Iron................................................................................................................ 1-1/2 in.
Drilling Capacity for Steel...................................................................................................................... 1-1/4 in.
End Milling Capacity.................................................................................................................................... 1 in.
Face Milling Capacity................................................................................................................................... 3 in.
Table Info
Table Length.............................................................................................................................................. 49 in.
Table Width.................................................................................................................................................. 9 in.
Table Thickness.................................................................................................................................... 3-3/4 in.
Number of T-Slots............................................................................................................................................ 3
T-Slot Size................................................................................................................................................ 5/8 in.
T-Slots Centers...................................................................................................................................... 2-1/2 in.
Number of Longitudinal Feeds.............................................................................................................. Variable
X-Axis Table Power Feed Rate..................................................................................................... 0 – 3.41 FPM
X/Y-Axis Travel per Handwheel Revolution.......................................................................................... 0.200 in.
Z-Axis Travel per Handwheel Revolution............................................................................................. 0.100 in.
Spindle Info
Spindle Taper............................................................................................................................................... R-8
Number of Vertical Spindle Speeds.................................................................................................................. 8
Range of Vertical Spindle Speeds............................................................................................. 80 – 2720 RPM
Quill Diameter........................................................................................................................................ 3-3/8 in.
Quill Feed Rates.................................................................................................... 0.0015, 0.003, 0.006 in./rev.
Drawbar Thread Size............................................................................................................................. 7/16-20
Drawbar Length................................................................................................................................... 18-1/2 in.
Spindle Bearings................................................................................................ Angular Contact Ball Bearings
Construction
Spindle Housing/Quill........................................................................................................................... Cast Iron
Table.................................................................................................................................................... Cast Iron
Head.................................................................................................................................................... Cast Iron
Column/Base....................................................................................................................................... Cast Iron
Base..................................................................................................................................................... Cast Iron
Stand.................................................................................................................................................... Cast Iron
Paint Type/Finish.................................................................................................................................... Enamel
Other Specifications:
Country of Origin ................................................................................................................................................ China
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time ........................................................................................................ 90 Minutes
Serial Number Location .................................................................................................................................. ID Label
ISO 9001 Factory .................................................................................................................................................. Yes
-10 -
Model G0796/G0797 (Mfd. Since 1/18)
MACHINE DATA
SHEET
Customer Service #: (570) 546-9663 · To Order Call: (800) 523-4777 · Fax #: (800) 438-5901
MODEL G0797 10" X 50" VARIABLE‐SPEED VERTICAL MILL
WITH POWER FEED AND DRO
Product Dimensions:
Weight............................................................................................................................................................ 2470 lbs.
Width (side-to-side) x Depth (front-to-back) x Height......................................................................... 100 x 85 x 88 in.
Footprint (Length x Width)............................................................................................................................ 48 x 33 in.
Shipping Dimensions:
Type.......................................................................................................................................................... Wood Crate
Content........................................................................................................................................................... Machine
Weight............................................................................................................................................................ 3021 lbs.
Length x Width x Height....................................................................................................................... 62 x 61 x 82 in.
Must Ship Upright................................................................................................................................................... Yes
Electrical:
Power Requirement.................................................................................................................... 220V, 3-Phase, 60Hz
Full-Load Current Rating....................................................................................................................................... 8.6A
Minimum Circuit Size.............................................................................................................................................. 15A
Connection Type....................................................................................................................................... Cord & Plug
Power Cord Included.............................................................................................................................................. Yes
Recommended Power Cord................................................................................. "S" Type, 4-Wire, 14AWG, 300VAC
Plug Included........................................................................................................................................................... No
Recommended Plug Type................................................................................................................................... 15-15
Switch Type........................................................................................................................... Forward/Reverse Switch
Motors:
Main
Horsepower................................................................................................................................................ 3 HP
Phase.................................................................................................................................................... 3-Phase
Amps........................................................................................................................................................... 8.6A
Speed................................................................................................................................................ 1720 RPM
Type........................................................................................................................................... TEFC Induction
Power Transfer ............................................................................................................................... V-Belt Drive
Bearings..................................................................................................... Shielded & Permanently Lubricated
Model G0796/G0797 (Mfd. Since 1/18)
-11-
Main Specifications:
Operation Info
Spindle Travel.............................................................................................................................................. 5 in.
Max Distance Spindle to Column........................................................................................................ 27-1/2 in.
Max Distance Spindle to Table............................................................................................................ 19-1/4 in.
Longitudinal Table Travel (X-Axis)............................................................................................................. 30 in.
Longitudinal Leadscrew (X-Axis)............................................................................................................... 52 in.
Cross Table Travel (Y-Axis)....................................................................................................................... 14 in.
Vertical Table Travel (Z-Axis).................................................................................................................... 15 in.
Ram Travel.......................................................................................................................................... 18-1/2 in.
Turret or Column Swivel (Left /Right)................................................................................................... 360 deg.
Head Tilt (Left/Right).............................................................................................................................. 90 deg.
Head Tilt (Front/Back)............................................................................................................................ 45 deg.
Drilling Capacity for Cast Iron................................................................................................................ 1-1/2 in.
Drilling Capacity for Steel...................................................................................................................... 1-1/4 in.
End Milling Capacity.................................................................................................................................... 1 in.
Face Milling Capacity................................................................................................................................... 3 in.
Table Info
Table Length.............................................................................................................................................. 50 in.
Table Width................................................................................................................................................ 10 in.
Table Thickness.................................................................................................................................... 4-1/8 in.
Number of T-Slots............................................................................................................................................ 3
T-Slot Size................................................................................................................................................ 5/8 in.
T-Slots Centers...................................................................................................................................... 2-1/2 in.
Number of Longitudinal Feeds.............................................................................................................. Variable
X-Axis Table Power Feed Rate..................................................................................................... 0 – 3.41 FPM
X/Y-Axis Travel per Handwheel Revolution.......................................................................................... 0.200 in.
Z-Axis Travel per Handwheel Revolution............................................................................................. 0.100 in.
Spindle Info
Spindle Taper............................................................................................................................................... R-8
Number of Vertical Spindle Speeds...................................................................................................... Variable
Range of Vertical Spindle Speeds............................................................................................. 60 – 4200 RPM
Quill Diameter...................................................................................................................................... 3-5/16 in.
Quill Feed Rates................................................................................................... 0.0015, 0.003, 0.006, in./rev.
Drawbar Thread Size............................................................................................................................. 7/16-20
Drawbar Length................................................................................................................................... 18-1/2 in.
Spindle Bearings....................................................................................................... Angular Contact Bearings
Construction
Spindle Housing/Quill........................................................................................................................... Cast Iron
Table.................................................................................................................................................... Cast Iron
Head.................................................................................................................................................... Cast Iron
Column/Base....................................................................................................................................... Cast Iron
Base..................................................................................................................................................... Cast Iron
Paint Type/Finish.................................................................................................................................... Enamel
Other Specifications:
Country of Origin ................................................................................................................................................ China
Warranty ........................................................................................................................................................... 1 Year
Approximate Assembly & Setup Time ........................................................................................................ 90 Minutes
Serial Number Location .................................................................................................................................. ID Label
ISO 9001 Factory .................................................................................................................................................. Yes
-12-
Model G0796/G0797 (Mfd. Since 1/18)
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 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-
Model G0796/G0797 (Mfd. Since 1/18)
-13-
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.
-14-
Model G0796/G0797 (Mfd. Since 1/18)
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.
Model G0796/G0797 (Mfd. Since 1/18)
-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.
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.
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 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.
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.
Availability
Electrocution, fire, shock,
supply.
Full-Load Current Rating
Circuit Information
property, consult an electrician if you are
unsure about wiring practices or electrical
codes in your area.
G0796 Full-Load Current Rating .... 13.8 Amps
G0797 Full-Load Current Rating ...... 8.6 Amps
-16 -
Grounding Requirements
Model G0796/G0797 (Mfd. Since 1/18)
This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following requirements:
No adapter should be used with plug. If
plug does not fit available receptacle, or if
machine must be reconnected for use on a
This machine is prewired to operate on a power
supply circuit that has a verified ground and meets
the following requirements:
The power cord and plug used on this machine
must have an equipment-grounding wire and
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).
The power cord and plug used on this machine
must have an equipment-grounding wire and
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).
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:
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.
G0796 Circuit Requirements
G0797 Circuit Requirements
Nominal Voltage .........208V, 220V, 230V, 240V
Cycle ..........................................................60 Hz
Phase .................................................... 3-Phase
Power Supply Circuit ......................... 15 Amps
Plug/Receptacle ............................NEMA 15-15
Cord ........“ S ”-Ty p e , 4-Wire, 14 AWG, 300 VAC
GROUNDED
15-15 RECEPTACLE
Nominal Voltage .........208V, 220V, 230V, 240V
Cycle ..........................................................60 Hz
Phase .................................................... 1-Phase
Power Supply Circuit ......................... 20 Amps
Plug/Receptacle ............................. NEMA 6-20
Cord ........“ S”-Typ e , 3-Wire, 12 AWG, 300 VAC
GROUNDED
6-20 RECEPTACLE
Current Carrying Prongs
6-20 PLUG
15-15 PLUG
Current
Carrying
Grounding Prong
Prongs
Figure 7. Typical 15-15 plug and receptacle.
Extension Cords
If you must use an extension
Figure 6. Typical 6-20 plug and receptacle.
Model G0796/G0797 (Mfd. Since 1/18)
Grounding Prong
Minimum Gauge Size (G0796) ............12 AWG
Minimum Gauge Size (G0797) .............14 AWG
Maximum Length (Shorter is Better).......50 ft.
-17-
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
get help from other people
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!
Description Qty
• Wrench or Socket 14mm ............................ 1
• Precision Level ........................................... 1
• Safety Glasses (for each person) ............... 1
• Solvent/Cleaner .......................................... 1
• Shop Rags .................................................. 1
• Brass Hammer ........................................... 1
• Lifting Straps (Rated min. 3000 lbs.) .......... 2
• Lifting Equipment (Rated min. 3000 lbs.) ... 1
• Additional People ....................................... 2
HEAVY LIF T!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
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.
Unpacking
If items are damaged
call us immediately at (570) 546-9663.
Save all packaging materials until
SUFFOCATION HAZARD!
machine. Discard immediately.
-18-
Model G0796/G0797 (Mfd. Since 1/18)
Inventory
The following is a list of items shipped with your
machine. Before beginning setup, lay these items
out and inventory them.
If any non-proprietary parts are missing (e.g. a
nut or a washer), we will gladly replace them; or
for the sake of expediency, replacements can be
obtained at your local hardware store.
A
B
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.
Small Item Inventory (Figure 8) Qty
A. Front Way Cover ......................................... 1
B. Fine Downfeed Handwheel ........................ 1
C. Rear Way Cover ......................................... 1
D. Drawbar ...................................................... 1
E. Knee Crank ................................................ 1
F. Belt Housing Safety Covers (G0796) ......... 2
G. Revolving Handles ..................................... 3
H. Coarse Downfeed Lever ............................. 1
I. Ball Handles ............................................... 3
J. Closed-End Wrench 17/19mm .................... 1
K. Hex Wrench Set 4, 5, 6, 8MM ...............1 Ea
L. Phillips Screwdriver #2 ............................... 1
M. Slotted Screwdriver #2 ............................... 1
N. Bottle for Oil ............................................... 1
O. Toolbox ....................................................... 1
G
D
I
L
M
Figure 8. Small item inventory.
E
H
J
N
F
K
O
Model G0796/G0797 (Mfd. Since 1/18)
-19 -
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. Avo 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 9. T23692 Orange Power Degreaser.
-20-
Model G0796/G0797 (Mfd. Since 1/18)
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
Machine Data Sheet for the weight
Children or untrained people
may be seriously injured by
this machine. Only install in an
access restricted location.
30"
Minimum
Clearance
for Maintenance
30"
Minimum
Clearance for
Wall
Maintenance
E
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.
or impede the operator must be eliminated.
G0796
A
99" 100"
A
B
B
C
D
E
67" 67"
61" 74"
35" 39"
24" 25"
G0797
Figure 10. Minimum working clearances.
Model G0796/G0797 (Mfd. Since 1/18)
D
C
-21-
Lifting & Placing
get help from other people
HEAVY LIF T!
Straining or crushing injury
may occur from improperly
lifting machine or some of
its parts. To reduce this risk,
and use a forklift (or other
lifting equipment) rated for
weight of this machine.
Use a forklift and at least two other people (see
Page 18) to lift the machine off the pallet and onto
a suitable location.
To lift and move mill:
Note: After re-positioning ram and head-
stock, make sure they are locked in place to
prevent unexpected movement during lifting.
Make sure the four turret lock bolts (two on
each side of the ram, see Figure 12) are
torqued to 47 ft./lbs. to keep the ram from
unexpectedly moving from the force of the
lifting straps.
Turret Locking Bolts
(2 of 4)
1. Remove crate from shipping pallet, then
with mill still on pallet, move to installation
location.
2. Rotate ram 180° so headstock is facing
backwards (see Figure 11), then rotate head
upright.
Refer to Positioning Head on Page 32 and
Positioning Ram on Page 33 for detailed
instructions to help with this step.
Safety Hook
Lifting Straps
Headstock
Facing Backward
Figure 12. Locations of turret locking bolts.
3. Place lifting straps under ram and con-
nect them to safety hook, as illustrated in
Figure 11.
Note: Place protective material between
straps and mill to protect ram and ways, and
to keep from cutting lifting straps.
4. Unbolt mill from shipping pallet.
5. With other people steadying load to keep it
from swaying, lift mill a couple of inches.
— If mill tips to one side, lower it to the
ground and adjust ram or table to balance
the load. Make sure to re-tighten lock
levers and bolts before lifting mill again.
— If mill lifts evenly, remove shipping pallet
and lower mill onto its prepared location.
Figure 11. Illustrated example of using lifting
straps to move the mill.
-22-
Model G0796/G0797 (Mfd. Since 1/18)
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.
Leveling
Anchoring to Floor
Leveling machinery helps precision components,
such as dovetail ways, remain straight and flat
during the lifespan of the machine. Components
on an unleveled machine may slowly twist due to
the dynamic loads placed on the machine during
operation.
Use metal shims between the base and the floor
when leveling the machine.
For best results, use a precision level that is at
least 12" long and sensitive enough to show a
distance movement when a 0.003" shim (approximately the thickness of one sheet of standard
newspaper) is placed under one end of the level.
See Figure 13 for an example of a high precision
level provided by Grizzly.
Number of Mounting Holes ............................ 4
Diameter of Mounting Holes .......................
5
⁄8"
Anchoring to Concrete Floors
Figure 13. Model H2683 12" Master Machinist's
Model G0796/G0797 (Mfd. Since 1/18)
Level.
Lag Screw
Flat Washer
Machine Base
Concrete
Figure 14. Popular method for anchoring
machinery to a concrete floor.
Lag Shield Anchor
Drilled Hole
-23-
Assembly
The machine must be fully assembled before it
can be operated. Before beginning the assembly
process, refer to
and gather
all
To ensure the assembly process
goes smoothly, first clean any
covered or coated in heavy-duty rust preventative (if
applicable).
Needed for Setup
listed items.
parts that are
Assembly of the mill consists of installing the
loose components listed in the inventory section.
This will take approximately 15 minutes.
3. Slide Z-axis crank onto end of Z-axis
leadscrew, as shown in Figure 16.
Z-Axis
Crank
To assemble mill:
1. Remove ball handle nuts from X- and Y-axis
leadscrews, slide ball handles onto leadscrews, and secure with ball handle nuts (see
Figure 15).
Note: Tighten the ball handle nuts just until
they are snug. Overtightening could increase
the wear of the moving parts.
2. Thread revolving handles into small end of
ball handles (see Figure 15) and tighten
them with 14mm wrench.
Ball
Handle
Ball
Handle
Nut
Figure 16. Z-axis crank installed.
4. Move table all the way forward, using Y-axis
handwheel, then attach rear way cover with
four pre-installed cap screws, as shown in
Figure 17.
Cap
Screws
Figure 17. Rear way cover installed.
Revolving
Handle
Figure 15. Ball handle installed on X-axis
leadscrew.
-24-
Model G0796/G0797 (Mfd. Since 1/18)
5. Move table all the way back toward the
Before the machine can be connected to the
power source, an electrical circuit and connection device must be prepared per the POWER
SUPPLY section in this manual, and all previous setup instructions in this manual must be
complete to ensure that the machine has been
assembled and installed properly.
column, then attach front way cover with
five pre-installed cap screws, as shown in
Figure 18.
Cap
Screws
Figure 18. Front way cover installed.
6. Install coarse downfeed lever (see Figure 19),
making sure pin on back of lever seats in
hub, then use a 4mm hex wrench to tighten
set screw.
Power Connection
Electrocution or fire
may occur if machine is
ungrounded, incorrectly
connected to power, or
connected to an undersized
circuit. Use an electrician
or a qualified service
personnel to ensure a safe
power connection.
7. Use a Phillips head screwdriver to remove
auto-downfeed direction pin from hub, then
mount fine downfeed handwheel on hub,
making sure pin on back of handwheel seats
in hub, and secure with auto-downfeed direction pin (see Figure 19).
Fine Downfeed
Handwheel
Auto-Downfeed
Direction Pin
Figure 19. Downfeed controls installed.
Coarse
Downfeed Lever
Set
Screw
Always make sure the power switch on the
machine is turned OFF (or the OFF button is
pushed in) before connecting power.
Power Connection
Insert power cord plug into a matching power supply receptacle. The machine is now connected to
the power source.
If you need to disconnect the machine from power
later, pull the plug completely out of the receptacle.
Note About Extension Cords: Using an incor-
rectly sized extension cord may decrease the
life of electrical components on your machine.
Refer to Extension Cords on Page 17 for more
information.
Model G0796/G0797 (Mfd. Since 1/18)
-25-
Test Run
setup instructions have been performed.
Operating an improperly set up machine
6. Rotate spindle switch to STOP (G0796) or
OFF (G0797) to avoid accidental startup in
Step 7.
Once assembly is complete, test run your machine
to make sure it runs properly and is ready for
regular operation.
The test run consists of verifying the following:
1) The motor powers up and runs correctly,
2) the spindle switch works correctly, and 3)
(G0797 only) the motor turns the correct direction
(machine is not wired out of phase).
If, during the test run, you cannot easily locate
the source of an unusual noise or vibration, stop
using the machine immediately, then review
Troubleshooting on Page 51.
If you still cannot remedy a problem, contact our
Tech Support at (570) 546-9663 for assistance.
DO NOT start machine until all preceding
7. Connect mill to power source specified in
POWER SUPPLY section on Page 17.
8. Rotate spindle switch to FOR (forward) posi-
tion (see Figure 20 or 21).
FOR
Position
Spindle Switch
Figure 20. Model G0796 spindle switch.
may result in malfunction or unexpected results that can lead to serious injury,
death, or machine/property damage.
Mill Test Run
1. Make sure you understand all safety instruc-
tions at beginning of manual and that machine
is set up properly.
2. Make sure all tools and objects used during
setup are cleared away from machine.
3. Make sure that mill is properly lubricated
(refer to Lubrication section on Page 47 for
specific details).
4. Set spindle speed to low range (refer to
Spindle Speed, beginning on Page 34 for
detailed instructions).
5. Move downfeed selector to manual (forward) position so that spindle does not automatically downfeed during this test (refer to
Downfeed Controls section on Page 37 for
detailed instructions).
FWD
Position
Spindle Switch
Figure 21. Model G0797 spindle switch.
9. Listen for abnormal noises and watch for
unexpected actions from mill. Machine should
run smoothly and without excessive vibration
or rubbing noises.
— Strange or unusual noises or actions must
be investigated immediately. Turn the
machine OFF and disconnect it from the
power source before investigating or correcting potential problems.
10. Rotate spindle switch to STOP (G0796) or
OFF (G0797) to stop spindle rotation.
-26-
Model G0796/G0797 (Mfd. Since 1/18)
Power Feed Test Run
This mill comes with a power feed unit for X-axis
table travel. Proper operation of the limit switch
attached to the front middle of the table is
important to the operation of this power feed unit.
If the power feed does not operate as expected
during the following steps, disconnect it from
power and contact our Tech Support at (570) 5469663 for assistance.
5. Make sure power feed direction knob is in
neutral (middle) position, turn speed dial
counterclockwise to lowest setting, then
press ON button.
6. Turn direction knob to left, slowly turn speed
dial clockwise to increase speed, then confirm that table is moving to left.
7. Watch for table limit stop to hit limit switch
and turn power feed OFF, stopping table
movement.
During power feed operation, ball handles
spin rapidly when engaged. Always stay
clear of ball handles when using power
feed. Failure to do so could lead to entanglement or impact injuries.
To test run power feed:
1. Make sure all tools, cables, and other items
are well clear of table movement and potential
direction of travel.
2. Refer to Operating X-Axis Power Feed
section, beginning on Page 31, to understand
how power feed, table locks, and limit switch
function.
3. Loosen table locks on front of table.
4. Plug power feed power cord into a grounded
110V power outlet.
8. Turn direction knob through neutral (middle)
position and all the way to the right. Table
should begin moving to the right.
9. Confirm that table stops moving when limit
stop presses against limit switch plunger.
10. Move direction knob to neutral (middle) position, turn speed dial to lowest setting, and
press OFF button.
Congratulations! The Test Run of the mill is
complete. Continue to the next page to perform the Spindle Break-In and Inspections &
Adjustments procedures.
Model G0796/G0797 (Mfd. Since 1/18)
-27-
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