MODEL G9298/G9299/G9300
HORIZONTAL/VERTICAL
ROTARY TABLE
OWNER'S MANuAL
Copyright © MArCh, 2009 By grizzly industriAl, inC.
WARNING: NO pORTION Of THIS MANuAL MAY BE REpRODuCED IN ANY SHApE
OR fORM WITHOuT THE WRITTEN AppROVAL Of GRIZZLY INDuSTRIAL, INC.
#ddts11512 printed in ChinA
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Table of Contents
INTRODuCTION............................................................................................................................... 2
Manual Accuracy........................................................................................................................ 2
Contact info................................................................................................................................ 2
Functional overview................................................................................................................... 2
identification ............................................................................................................................... 3
specifications ............................................................................................................................. 3
SECTION 1: SAfETY....................................................................................................................... 4
safety instructions for Machinery............................................................................................... 4
SECTION 2: SETup......................................................................................................................... 6
needed for setup....................................................................................................................... 6
unpacking .................................................................................................................................. 6
inventory..................................................................................................................................... 7
Clean up .................................................................................................................................... 7
installation .................................................................................................................................. 8
spindle Alignment ...................................................................................................................... 9
SECTION 3: OpERATIONS ........................................................................................................... 11
Basic Controls .......................................................................................................................... 11
Adjusting handwheel scales.................................................................................................... 12
Vernier scale............................................................................................................................ 12
Basic operation........................................................................................................................ 13
SECTION 4: ACCESSORIES......................................................................................................... 15
SECTION 5: MAINTENANCE......................................................................................................... 17
schedule .................................................................................................................................. 17
Cleaning ................................................................................................................................... 17
lubrication................................................................................................................................ 17
surface Care ............................................................................................................................ 18
preload..................................................................................................................................... 18
WARRANTY AND RETuRNS........................................................................................................ 21
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INTRODuCTION
Manual Accuracy
Contact Info
We stand behind our machines. if you have any
service questions, parts requests or general ques-
tions about the machine, please call or write us at
the location listed below.
We are proud to offer this manual with your new
machine! We've made every effort to be exact
with the instructions, specifications, drawings, and
photographs of the machine we used when writ-
ing this manual. however, sometimes errors do
happen and we apologize for them.
grizzly industrial, inc.
1203 lycoming Mall Circle
Muncy, pA 17756
phone: (570) 546-9663
Fax: (800) 438-5901
Also, owing to our policy of continuous improve-
ment, your machine may not exactly match the
manual. if you find this to be the case, and the dif-
ference between the manual and machine leaves
you in doubt, check our website for the latest
manual update or call technical support for help.
e-Mail: techsupport@grizzly.com
if you have any comments regarding this manual,
please write to us at the address below:
Before calling, find the manufacture date of your
machine by looking at the date stamped into the
machine id label (see below). this will help us
determine if the manual version you received
matches the manufacture date of your machine.
grizzly industrial, inc.
technical documentation Manager
p.o. Box 2069
Bellingham, WA 98227-2069
email: manuals@grizzly.com
C
/o
Machine Description
Manufacture date
of your Machine
rotary tables offer the ability to rotate the
workpiece for milling operations. these capabili-
ties would be difficult, if not impossible to do, any
other way. Circular slots and rounded features
composed of any portion of a whole circle can be
produced with a rotary table.
For your convenience, we post all available man-
uals and manual updates for free on our website
of machine will be reflected in these documents
as soon as they are complete.
Along with this, the rotary table can be used to
create circular hole patterns, exactly spaced radi-
al features, and machine facets, and other similar
machining operations.
NOTICE
If you have never used this type of machine or equipment before, WE STRONGLY RECOMMEND
that you read books, review industry trade 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.
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Identification
rotary
table
lock
horizontal Mounting slot
table scale
oil
port
Backlash
Adjustment
ring
rotary
table
lock
handwheel
scale
spindle
Vertical
Mounting
holes
Backlash
Adjustment
lock
Vernier
scale
figure 1. Model g9289/g9299/g9300 identification.
Specifications
Description
G9298
0.0006"
0.0008"
0.0008"
0.0008"
0.0004"
0.0008"
3.944"
5.985"
Mt#3
G9299
G9300
Clamping surface Flatness (Concave)
Cylindrical Center Bore Concentricity
taper Center Bore Concentricity
surface to Base parallelism
surface to Angle Face squareness
surface to Center slot squareness
overall height (horizontal)
height to Center hole (Vertical)
Morse taper
0.0006"
0.0008"
0.0008"
0.0008"
0.0004"
0.0008"
4.330"
6.750"
Mt#3
0.0006"
0.0008"
0.0008"
0.0008"
0.0004"
0.0008"
4.750"
8.250"
Mt#4
t-slot number
4
6
6
t-slot Width
0.465"
8"
0.465"
10"
0.545"
12"
diameter
shipping Weight
75 lbs.
117 lbs.
168 lbs.
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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.
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
proper operation of the machine.
NOTICE
Safety Instructions for Machinery
Safety Instructions for Machinery
1. READ THE ENTIRE MANUAL BEFORE
STARTING MACHINERY. Machinery pres-
ents serious injury hazards to untrained
users.
4. ALWAYS USE HEARING PROTECTION
WHEN OPERATING MACHINERY.
Machinery noise can cause permanent
hearing loss.
5. WEAR PROPER APPAREL. DO NOT
wear loose clothing, gloves, neckties, rings,
or jewelry that can catch in moving parts.
Wear protective hair covering to contain
long hair and wear non-slip footwear.
2. ALWAYS USE ANSI APPROVED
SAFETY GLASSES WHEN OPERATING
MACHINERY. Everyday eyeglasses only
have impact resistant lenses—they are
NOT safety glasses.
6. NEVER OPERATE MACHINERY WHEN
TIRED OR UNDER THE INFLUENCE OF
DRUGS OR ALCOHOL. Be mentally alert
at all times when running machinery.
3. ALWAYS WEAR A NIOSH APPROVED
RESPIRATOR WHEN OPERATING
MACHINERY THAT PRODUCES DUST.
Most types of dust (wood, metal, etc.) can
cause severe respiratory illnesses.
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Safety Instructions for Machinery
7. ONLY ALLOW TRAINED AND PROP-
17. REMOVE ADJUSTING KEYS AND
ERLY SUPERVISED PERSONNEL TO
OPERATE MACHINERY. Make sure
operation instructions are safe and clearly
understood.
WRENCHES. Make a habit of checking for
keys and adjusting wrenches before turn-
ing machinery ON.
18. CHECK FOR DAMAGED PARTS
BEFORE USING MACHINERY. Check for
binding or misaligned parts, broken parts,
loose bolts, and any other conditions that
may impair machine operation. Repair or
replace damaged parts before operation.
8. KEEP CHILDREN AND VISITORS AWAY.
Keep all children and visitors a safe dis-
tance from the work area.
9. MAKE WORKSHOP CHILDPROOF. Use
padlocks, master switches, and remove
start switch keys.
19. USE RECOMMENDED ACCESSORIES.
Refer to the instruction manual for recom-
mended accessories. Improper accesso-
ries increase risk of injury.
10. NEVER LEAVE WHEN MACHINE IS
RUNNING. Turn power OFF and allow all
moving parts to come to a complete stop
before leaving machine unattended.
20. DO NOT FORCE MACHINERY. Work at
the speed for which the machine or acces-
sory was designed.
11. DO NOT USE IN DANGEROUS
ENVIRONMENTS. DO NOT use machin-
ery in damp, wet locations, or where any
flammable or noxious fumes may exist.
21. SECURE WORKPIECE. Use clamps or
a vise to hold the workpiece when practi-
cal. A secured workpiece protects your
hands and frees both hands to operate the
machine.
12. KEEP WORK AREA CLEAN AND WELL
LIGHTED. Clutter and dark shadows may
cause accidents.
22. DO NOT OVERREACH. Maintain stability
and balance at all times.
13. USE A GROUNDED EXTENSION CORD
RATEDFORTHEMACHINEAMPERAGE.
Grounded cords minimize shock hazards.
Undersized cords create excessive heat.
Always replace damaged extension cords.
23. MANY
MACHINES
CAN
EJECT
WORKPIECES TOWARD OPERATOR.
Know and avoid conditions that cause the
workpiece to "kickback."
14. ALWAYS DISCONNECT FROM POWER
24. ALWAYS LOCK MOBILE BASES
(IF USED) BEFORE OPERATING
MACHINERY.
SOURCE
BEFORE
SERVICING
MACHINERY. Make sure switch is in OFF
position before reconnecting.
25. CERTAIN DUST MAY BE HAZARDOUS
to the respiratory systems of people and
animals, especially fine dust. Be aware of
the type of dust you are exposed to and
always wear a respirator designed to filter
that type of dust.
15. MAINTAIN MACHINERY WITH CARE.
Keep blades sharp and clean for best and
safest performance. Follow instructions for
lubricating and changing accessories.
16. MAKE SURE GUARDS ARE IN PLACE
AND WORK CORRECTLY BEFORE
USING MACHINERY.
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SECTION 2: SETup
Needed for Setup
Read through this entire
manual to become famil-
iar with the controls and
operations before using
this rotary table. follow
all of the safety instruc-
tions in the owner's man-
ual for your mill.
Description
Qty
•
•
•
•
•
•
•
•
safety glasses ........................................... 1
Cleaner/degreaser (page 7)...... As needed
disposable shop rags............... As needed
Additional people ....................... As needed
Wrench or socket 18mm............................ 1
precision square*....................................... 1
test indicator*............................................. 1
edge Finder* .............................................. 1
Wear safety glasses dur-
ing the entire setup pro-
cess!
* refer to Accessories on page 15 for options
from grizzly.
unpacking
This rotary table is very
heavy. Get lifting help and
use proper lifting meth-
ods to avoid possible
serious personal injury.
your machine was carefully packaged for safe
transportation. remove the packaging materials
from around your machine and inspect it. if you
discover the machine is damaged, please imme-
diately call Customer Service at (570) 546-9663
for advice.
save the containers and all packing materials for
possible inspection by the carrier or its agent.
Otherwise, filing a freight claim can be difficult.
When you are completely satisfied with the condi-
tion of your shipment, inventory the contents.
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Inventory
Clean up
the following is a description of the main compo-
nents shipped with your machine. lay the compo-
nents out to inventory them.
the unpainted surfaces are coated with a waxy
oil to prevent corrosion during shipment. remove
this protective coating with a solvent cleaner or
degreaser, such as shown in figure 3. For thor-
ough cleaning, some parts must be removed.
for optimum performance, clean all moving
parts or sliding contact surfaces. Avoid chlo-
rine-based solvents, such as acetone or brake
parts cleaner that may damage painted surfac-
es. Always follow the manufacturer’s instructions
when using any type of cleaning product.
Note: If you can't find an item on this list, check
the mounting location on the machine or examine
the packaging materials carefully. Occasionally
we pre-install certain components for shipping
purposes.
Inventory: (figure 2)
Qty
A. rotary table............................................... 1
B. Clamping hardware:
—horizontal Clamp .................................... 1
—t-Bolt M12-1.75 x 80 ............................... 1
—t-Bolts M12-1.75 x 60 ............................. 2
—Flat Washers 12mm................................ 3
—hex nuts M12-1.75.................................. 3
Gasoline and petroleum
products have low flash
points and can explode
or cause fire if used to
clean machinery. DO
NOT use these products
to clean the machinery.
A
Many cleaning solvents
are toxic if inhaled.
Minimize your risk by only
using these products in a
well ventilated area.
B
G2544—Solvent Cleaner & Degreaser
H9692—Orange power Degreaser
great products for removing shipping grease.
figure 2. shipping inventory.
if any nonproprietary 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.
SuffOCATION HAZARD!
Immediately discard all plas-
tic bags and packing materi-
als to eliminate choking/suf-
focation hazards for children
and animals.
figure 3. Cleaner/degreasers available from
grizzly.
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Vertical position
Installation
it will be necessary to compare the center-to-cen-
ter distance between the t-slots of your mill table
to the vertical mounting holes of the rotary table.
if the mounting holes do not intersect the mill
table t-slots with sufficient space for the t-bolts,
use step blocks and clamps in place of one of the
t-bolts.
Before installing your rotary table, make sure that
your mill table and spindle are properly aligned
as instructed in your mill's owner manual. Also,
remove any burrs or scratches from the mating
surfaces of the mill and rotary tables by “stoning”
them, then thoroughly wipe them clean and dry
(refer to the Surface Care subsection on page 18
for detailed instructions).
the alignment keys on the foot of the rotary table
measure approximately 0.630" (16mm) and are
used to align the rotary table. if they are wider
than the mill table t-slots, machine a step into
them so that they will fit properly. otherwise, they
can be removed to allow manual alignment.
Horizontal position
1. disConneCt Mill FroM poWer!
2. position the rotary table horizontally on the
mill table so that the center mounting slot is
aligned with the center t-slot of the table.
To install the rotary table in the vertical posi-
tion:
1. disConneCt Mill FroM poWer!
3. insert the M12-1.75 x 80 t-bolt into the mill
table t-slot and slide it into the rotary table
mounting slot, then install the flat washer and
hex nut, but do not tighten them for now.
2. insert the two M12-1.75 x 60 t-bolts in the
outer slots of the mill table.
3. Align the vertical mounting holes of the rotary
table with the t-bolts, then place the rotary
table onto the mill table with the alignment
keys, if used, into the table's center slot.
4. use the horizontal clamp, M12-1.75 x 60
t-bolt, flat washer, and hex nut to hold the
opposite end of the rotary table, but do not
tighten it for now.
—if the alignment keys are not used, place a
precision square along the mill table front
edge and the machined side of the rotary
table foot, then square the rotary table to
the mill table.
5. place a precision square along the front edge
of the mill table and the foot of the rotary
table, square the rotary table to the mill table,
then fully tighten the hex nuts.
6. perform the Alignment procedure as instruct-
ed on page 9.
4. install the flat washers and hex nuts onto the
t-bolts to secure the rotary table in place.
5. perform the Alignment procedure as instruct-
ed on page 9.
You MuST properly secure the rotary table
to the mill table to prevent unexpected
movement during operation, which could
result in personal injury or damage to the
workpiece.
NOTICE
Make sure the rotary table handwheel is free
of obstructions. Depending on your setup,
the rotary table may need to be blocked up
or mounted so the handle is hanging over
the edge of the mill table. After installation,
carefully check for any possible obstruc-
tions that may interfere with the rotary table
or its handwheel.
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3. turn the mill spindle so that the test indicator
is aligned to the X-axis of the mill table.
Spindle Alignment
Note: For best results, turn the mill spindle in
only one direction.
Whether the rotary table is mounted horizontally
or vertically, you must align the centers of the
rotary table and mill spindle to achieve quality
results.
4. slowly move the mill table until the test indi-
cator reads zero deviation.
there are many ways to align the rotary table,
and it is up to the machinist and his capabilities to
decide which approach is best.
5. rotate the mill spindle and test indicator 90°,
then repeat Step 4.
6. repeat Step 5 until the test indicator reads
zero deviation in all four directions.
Horizontal position Alignment
two methods are described below for aligning
the spindles when the rotary table is mounted
horizontally.
Tip: Use a mirror to read the indicator when
it is facing away from you.
To use an edge finder to align the rotary
table:
To use a test indicator to align the rotary
table:
1. Mount an edge finder into the mill spindle,
then position it roughly in the center of the
rotary table spindle bore and below the rotary
table surface.
1. disConneCt Mill FroM poWer!
2. Mount a test indicator on the mill spindle and
position the indicator tip on the inside vertical
surface of the rotary table spindle bore, as
shown in figure 4.
2. turn the spindle ON and set the speed to
800–1000 rpM, then slowly move the mill
table along the X-axis in one direction.
Note: Refer to Accessories on Page 15 for
test indicator options from Grizzly.
3. When you find the edge of the rotary table
spindle bore, note the position of the table on
the handwheel dial.
spindle
Bore
step
Note: When recording the mill table position,
take into account the backlash that is usually
present in the leadscrew.
4. slowly move the mill table in the opposite
direction until you again find the edge of the
spindle bore, then note the table's position on
the handwheel dial.
test
indicator
5. Calculate the difference of the mill table posi-
tions noted in Steps 3–4, then subtract 1⁄2 the
diameter of the edge finder.
figure 4. test indicator properly positioned.
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6. Move the mill table along the X-axis to the
position calculated in Step 5.
To center the rotary table with the mill spin-
dle:
7. repeat these steps with the mill table
y-axis.
1. Fully seat a lathe center into the rotary table
spindle.
Note: Use the pattern illustrated in Figure 5
to aid in positioning the edge finder for the
above procedure.
Note: Any runout of the center will have to be
determined and accounted for in the following
steps.
2. use an edge finder mounted in the mill spin-
dle to find the center's edge (see the illustra-
tion in figure 6).
Top View
2
Edge
Finder
4
5
6
3
1
Rotary
Table
Lathe
Center
figure 5. the six positions of the edge finder.
Vertical position Alignment
if the alignment keys are not used, it is a good
idea to verify the rotary table alignment front-to-
back with the mill spindle.
figure 6. top view of the rotary table with an
edge finder and center.
3. Measure the diameter of the center where the
edge finder made proper contact, divide this
number in half, then add half of the diameter
of the edge finder. the result is the amount
you need to move the mill table along the
y-axis to center the rotary table with the mill
spindle.
To verify the front-to-back alignment of the
rotary table:
1. disConneCt Mill FroM poWer!
2. Mount a test indicator on the mill spindle and
position the indicator tip on one end of the
rotary table face.
Note: Be sure to take into account any back-
lash when moving the mill table.
3. Move the mill table along the y-axis and note
any deviations in the test indicator.
—if a deviation is found, loosen the rotary
table mounting hex nuts, tap the rotary
table into the proper position, then re-tight-
en the mounting hex nuts.
4. repeat Step 3 until the entire rotary table
face is properly aligned with the mill spindle.
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SECTION 3: OpERATIONS
Basic Controls
To reduce the risk of
serious injury when using
this machine, read and
understand this entire
manual before beginning
any operations.
use figure 7 and the following descriptions to
become familiar with the basic controls of your
rotary table.
e
d
C
Damage to your eyes and lungs could result
from using this machine without proper pro-
tective gear. Always wear safety glasses and
a respirator when operating this machine.
B
A
d
F
h
g
figure 7. Basic controls of the rotary table.
A. Handwheel: rotates the table when the
gears are engaged.
Loose hair, clothing, or
jewelry could get caught
in machinery and cause
serious personal injury.
Keep these items away
from moving parts at all
times to reduce this risk.
B. Handwheel Scale: displays the amount of
table rotation with a resolution of 1' (1 arc
minute), and also has 1° marks. one full turn
of the handwheel rotates the table 4°.
C. Backlash Adjustment Ring: Allows adjust-
ment of the backlash between the gears.
Also, disengages the gears so that the table
can be rotated by hand. loosen the back-
lash adjustment lock, then rotate the ring
clockwise until the worm gears disengage.
reverse the process to re-engage them.
NOTICE
If you have never used this type of machine
or equipment before, WE STRONGLY REC-
OMMEND that you read books, review
industry trade 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.
D. Table Lock: When fully tightened, keeps the
table from rotating to reduce the strain on the
gears during operation. When cutting circular
slots, a slight drag can be applied with the
table locks to help reduce chatter caused by
gear backlash.
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E. Table Scale: displays the amount of table
rotation in whole degrees.
2. loosen the screw on the back of the vernier
scale and rotate so that the zero mark is in
a good viewing position, then re-tighten the
screw.
f. Spindle: holds a center to support a
workpiece for dividing work. Also, used in
rotary table alignment with the mill spindle.
3. rotate the handwheel scale so that its zero
mark aligns with the one on the vernier
scale.
G. Backlash Adjustment Lock: secures the
backlash adjustment ring in place.
H. Vernier Scale: displays the amount of table
rotation with a resolution of 10" (10 arc sec-
onds.
Vernier Scale
use the vernier scale to rotate the table by 10" (10
arc seconds) at a time.
Adjusting Handwheel
in the example below, you will be setting the rota-
ry table to 16° 42' 20". this exercise assumes the
table position is at zero, and both the handwheel
and vernier scales are aligned at zero.
Scales
the handwheel scales can be easily adjusted to
a good viewing position when the rotary table is
installed horizontally or vertically.
To set the table at 16° 42' 20":
1. With the table at 0°, rotate the handwheel
clockwise four full turns, which will rotate the
table 16°.
Tools Needed
standard screwdriver........................................ 1
Qty
To adjust the handwheel scales:
—if you go past zero on the fourth turn, return
the table to 0°, then start again.
1. rotate the rotary table until the zero on the
table scale is aligned with the index mark on
the side of the table (see figure 8).
Note: When changing directions with the
handwheel, take into account any backlash.
table
scale
At zero
handwheel
scale
Vernier
scale
figure 8. table scale at zero degrees.
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2. slowly continue to turn the handwheel clock-
wise to 42' as displayed on the handwheel
scale (see the illustration in figure 9).
Basic Operation
in the following two exercises, it is assumed that
the following statements are true before beginning
the operation:
20 Arc Seconds
•
•
•
the rotary table is properly secured to the mill
table in the horizontal position.
60
0
Vernier Scale
the rotary table is properly centered with the
mill spindle.
40
30 20
10
50
40
30
20
10
5
0
0
1
Handwheel Scale
the workpiece is centered on the rotary table
and elevated for proper machining clear-
ance.
42 Arc
Minutes
Degree
figure 9. table set at 16° 42' 20".
•
the workpiece is securely clamped to the
rotary table.
3. identify the mark on the vernier scale that is
two marks or 20" to the left of the zero mark.
five Evenly Spaced Holes
Note: When the handwheel is turned clock-
wise, the marks to the left of the zero mark
on the vernier scale are used, and when the
handwheel is turned counterclockwise, the
marks on the right are used.
in this exercise, you will make five holes spaced
72° apart in a circular workpiece, as illustrated in
figure 10.
72º
4. identify the mark on the handwheel scale that
is immediately to the left of the vernier scale
mark identified in Step 3, then slowly rotate
the handwheel clockwise to align these two
marks. the table is now set 16° 42' 20".
figure 10. Five holes spaced 72° apart.
Tip: When using the rotary table to machine
several locations or with a complicated pattern,
make a drawing with measurement details to help
visualize the operation. This will reduce the risk of
making errors during the operation.
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To make five evenly spaced holes:
To make two circular slots:
1. use the handwheel to rotate the rotary table
to the zero mark on the table scale, then
tighten both table locks.
1. use the handwheel to rotate the rotary table
to the zero mark on the table scale, then
tighten both table locks.
Note: Make sure the handwheel and vernier
scales also read zero.
Note: Make sure the handwheel and vernier
scales also read zero.
2. drill the first hole.
2. Move the mill table to the left 1.125" along its
X-axis so that the spindle is above the lower
end of the upper slot.
3. unlock the table, then turn the handwheel 18
full turns which will rotate the rotary table to
72° as displayed on the table scale.
3. With a 1⁄4" end mill installed in the mill spindle,
make a 0.083" deep hole (approximately 1⁄3 of
the cutter's diameter).
Note: Be careful not to pass the zero mark
on the last turn. If you go past the zero mark,
reverse the handwheel one full turn, then try
again. This will eliminate any backlash error
that occurs when reversing handwheel direc-
tion.
4. With the end mill continuing to cut, turn the
rotary table handwheel clockwise 15 full
turns, using care not to pass the zero mark
on the last turn.
4. lock the table in place and drill the hole.
5. raise the end mill from the workpiece, then
turn the rotary table handwheel counterclock-
wise 16 full turns—one full turn past the start-
ing point to eliminate the backlash error.
5. repeat Steps 3–4, which will produce the
third hole at 144°, the fourth hole at 216°, and
the fifth hole at 288°.
6. rotate the rotary table clockwise back to the
0° mark, then take an additional 0.083" deep
cut.
Two Circular Slots
in this exercise, you will cut two 90° circular slots
in a round workpiece, as illustrated in figure 11.
7. repeat Steps 4–6 until the final depth of cut
is reached.
8. raise the end mill from the workpiece, then
return the rotary table back to the 0° mark.
90º
1.125"
9. Move the mill table 2.25" to the right along its
X-axis to align the cutter with the end of the
second circular slot.
Radius
10. repeat Steps 3–7 to complete the second
circular slot.
Start
Here
0.25"
figure 11. two 90° circular slots.
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ACCessories
SECTION 4: ACCESSORIES
G9640— 90° Wide Base Square 3" x 5"
G9641— 90° Wide Base Square 4" x 6"
G9642— 90° Wide Base Square 5" x 8"
grade 0, heavy-duty stainless steel 90° precision
squares feature wide bases for stability. perfect
for all setup and inspection work.
G1075—52-pC. Clamping Kit 1⁄2" T-Nut
G1076—52-pC. Clamping Kit 5⁄8" T-Nut
this clamping kit includes 24 studs, 6 step block
pairs, 6 t-nuts, 6 flange nuts, 4 coupling nuts, and
6 end hold-downs. the rack is slotted so it can be
mounted close to the machine for easy access.
figure 14. 52-pC. Clamping Kit.
G9629—universal Indicator Holder
figure 12. 90° precision Wide-Base squares.
Mount your test indicator right on your mill for
guaranteed accurate readings. C-frame holder
mounts with a single screw directly on the quill
and does not interfere with the cutting tool.
Clamping diameter is 17⁄8". the length from the
clamping bracket to the indicator is 41⁄2". suitable
for all popular indicators with a 5⁄32" shank.
G9610—Test Indicator
0.03" range/0.001" resolution
G9611—Test Indicator
0.008" range/0.0001" resolution
G9612—Test Indicator
0.030" range/0.0005" resolution
these test indicators have an easy to read dial
and a pivoting stylus that moves at right angles to
the dial face.
figure 15. g9629 universal indicator holder.
figure 13. test indicator.
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H2939—4 piece Edge finder Set
G9295—Dividing plates
Four different styles to cover any setup problem!
When used with your rotary table, these dividing
plates provide a higher degree of precision in hole
placement, spot facing, and even gear making.
3
set includes one each: a ⁄8" diameter with a
point, a combination 3⁄8" diameter with a point and
1
a 0.200" shoulder, a ⁄2" diameter with a 0.200"
1
shoulder, and a combination ⁄2" diameter with a
0.200" shoulder and a 0.500" shoulder.
figure 18. g9295 dividing plates.
H8370—power feed for Mills
if you want to get the most out of your mill, you
really need a power feed. this power feed comes
with everything required to start milling with exact
control. Comes supplied with a mounting bracket,
gear, auto-stop limit switch with moveable stop
pins, gear guard, and motor. specs: 0–140 rpM,
200 rpM rapid switch, 440 in/lb. maximum torque,
110V 60hz motor, 4:1 bevel drive gear.
figure 16. h2939 4-pc. edge Finder set.
G9296—Adjustable Tailstock
For 8" and 10" rotary tables
G9297—Adjustable Tailstock
For 12" rotary tables
When used with your rotary table and mill, these
adjustable tailstocks provide the support you
need for those longer workpieces. Clamps to your
mill table with standard clamping hardware and
allows precise and accurate adjustments.
figure 19. h8370 power Feed.
figure 17. Adjustable tailstock.
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SECTION 5: MAINTENANCE
Schedule
Lubrication
For optimum performance from your machine,
follow this maintenance schedule and refer to any
specific instructions given in this section.
place the rotary table in a horizontal position and
check the oil site glass located on the back side
of the base (see figure 20). if necessary, add a
high-quality 80W–90W gear oil until the oil level
reaches half-way in the site glass.
Daily:
•
•
•
•
Clean and lubricate the machine
dress the machined surfaces.
Check/fill the oil reservoir.
oil
Check/resolve any unsafe condition.
Ball Bearing
port
Ball oiler
Monthly:
disassembly and clean the machine.
•
Cleaning
sight
glass
it is essential that the rotary table be cleaned after
every use and oiled with a light machine oil to
prevent corrosion.
figure 20. lubrication components.
do not use compressed air to clean your
rotary table. Chips or debris may become lodged
between the moving parts, reducing the life and
accuracy of the machine. instead, use a stiff-
bristled brush to remove the chips and swarf, then
wipe down the surfaces with a clean shop rag.
the ball bearing ball oiler is located on the edge
of the rotary table (see figure 20). With the rotary
table positioned vertically, use a squirt-gun style
oiler to add one or two pumps of 20W non-deter-
gent oil to the ball oiler per day.
every 80 hours of use, completely disassembly
the rotary table, then thoroughly clean each part
and re-lubricate.
-17-
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2. remove the three cap screws shown in
figure 21 that secure the keeper.
Surface Care
nicks, dings, and scratches on the surface of the
rotary table and base can have an adverse effect
on accuracy and may damage the workpiece or
mill table.
prior to use, dress or "stoning" these surfaces
with a fine sharpening stone. A few strokes of the
stone on the table surface, the machined base
and back, and the mill table will help to ensure
longevity and accuracy. Make sure to thoroughly
wipe these surfaces clean to remove any dust
generated from the process.
Keeper
figure 21. Keeper and cap screws.
preload
3. remove the keeper and the spacer (see
figure 22).
A precision spacer is installed under the keeper
on the back of the rotary table to maintain the
proper amount of preload. With use, the spacer
surface that the keeper rubs against may become
worn.
Keeper
(shown upside
down)
you can test the preload by mounting the rotary
table horizontally on the mill table, positioning the
tip of a test indicator on the surface of the rotary
table, then attempting to lift the table up from the
base. the table is properly preloaded when no
motion is measured. if motion is detected by the
test indicator, perform the procedure below to cor-
rect the amount of preload.
spacer
Tools Needed
hex Wrench 5mm.............................................. 1
Qty
figure 22. Keeper and spacer removed from the
rotary table.
Fine sharpening stone...................................... 1
4. stone the spacer as instructed in the previ-
ous Surface Care subsection on this page.
To correct the amount of preload:
1. turn the rotary table horizontally upside down
on a protected surface.
5. thoroughly clean all of the mating surfaces,
then apply a thin coat of light machine oil to
all parts.
6. re-assembly the parts and test the preload
again. if necessary, repeat this procedure
until you have attained the proper amount of
preload.
-18-
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WARRANTY CARD
Name_____________________________________________________________________________
Street_____________________________________________________________________________
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Model # ____________________ Order #_______________________ Serial #__________________
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Note: We never use names more than 3 times. _____Yes _____No
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Here
GRIZZLY INDUSTRIAL, INC.
P.O. BOX 2069
BELLINGHAM, WA 98227-2069
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WARRANTY AND RETuRNS
WARRANTY AND RETURNS
Grizzly Industrial, Inc. warrants every product it sells for a period of 1 year to the original purchaser from
the date of purchase. This warranty does not apply to defects due directly or indirectly to misuse, abuse,
negligence, accidents, repairs or alterations or lack of maintenance. This is Grizzly’s sole written warranty
and any and all warranties that may be implied by law, including any merchantability or fitness, for any par-
ticular purpose, are hereby limited to the duration of this written warranty. We do not warrant or represent
that the merchandise complies with the provisions of any law or acts unless the manufacturer so warrants.
In no event shall Grizzly’s liability under this warranty exceed the purchase price paid for the product and
any legal actions brought against Grizzly shall be tried in the State of Washington, County of Whatcom.
We shall in no event be liable for death, injuries to persons or property or for incidental, contingent, special,
or consequential damages arising from the use of our products.
To take advantage of this warranty, contact us by mail or phone and give us all the details. We will then
issue you a “Return Number,’’ which must be clearly posted on the outside as well as the inside of the
carton. We will not accept any item back without this number. Proof of purchase must accompany the
merchandise.
The manufacturers reserve the right to change specifications at any time because they constantly strive to
achieve better quality equipment. We make every effort to ensure that our products meet high quality and
durability standards and we hope you never need to use this warranty.
Please feel free to write or call us if you have any questions about the machine or the manual.
Thank you again for your business and continued support. We hope to serve you again soon.
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