Hi-Tech Diamond 31-000 User manual

10" Slab Saw
EST. 1984
HI TECH
INSTRUCTION MANUAL
EST. 19 84
HI TECH

2
SAFETY INSTRUCTIONS
IMPORTANT! READ FIRST
For your own safety be sure to read, understand and follow all warnings, safety rules and
instructions in this instruction manual before using this machine. Failure to do so can
result in serious personal injury. This instruction manual is intended for the following
machine models: 31-000, 31-001, 31-004 and 31-006.
Save these instructions
SETUP
• Intended for indoor use only.
• Avoid dangerous environments. Do not use
this machine near gasoline or other flammable
liquids.
• Make sure machine is securely placed on a
sturdy, level surface with ample working area
and away from open electrical outlets.
• Check for damaged parts. Before use of this
machine, always check for any damaged parts
to determine that it will operate properly and
perform its intended function. Check for proper
alignment of moving parts, binding of moving
parts, breakage of parts, mounting, and any
other conditions that may aect its operation. A
part that is damaged must be properly replaced
through the manufacturer of this machine to
avoid risk of injury.
• Use only identical 10" Slab saw parts for
replacement parts. Use of any other parts not
originally intended for the 10" Slab saw machine
may create a hazard or cause product damage.
• Know your power tool. Read this instruction
manual carefully. Learn the correct applications
and limitations as well as specific warnings and
hazards related to this machine.
USAGE
• Always wear proper apparel. Do not wear any
loose clothing, gloves, neckties or jewelry that
can get caught in the machine’s moving parts.
Secure long hair with a rubber band or hair tie.
• Always wear proper eye protection to protect
you from any debris that may fly out while
sawing. We recommend wearing safety goggles or
safety glasses with side shields. Everyday glasses

3
SAFETY INSTRUCTIONS
are not safety glasses. If anyone is around the
machine while it’s in use, they must also wear
safety glasses.
• Keep work area well lit and clean. Make sure
your work area is not cluttered.
• Do not operate unattended. Adult supervision
is required at all times. Never leave the machine
running unattended.
• Do not operate this machine while under the
influence of drugs, alcohol or any medication.
• Never run saw blades dry. Saw blades are
designed to be used with a lubricant, such as oil
or water, and will be ruined immediately if used
dry. Always make sure you are using adequate
oil or water while sawing so that rock dust
doesn’t form. This dust contains chemicals that
can be hazardous to your lungs if inhaled and
is known to cause cancer, birth defects or other
reproductive harm. To reduce your exposure
to these chemicals, work in a well ventilated
area and wear a face or dust mask if the sawing
operation is dusty.
• Never attempt to cut curves with the saw
blade. Saw blades are designed to cut straight
lines only. Ignoring this warning may result in a
damaged saw blade and possible injury.
• Never cut more than one workpiece at a time.
• Some rocks contain poisonous elements.
Avoid sawing rocks that contain uranium,
mercury, lead, arsenic, etc. Make sure you know
the material you are sawing.
• Allow your trim saw to cool. By ignoring this
warning, the 10" Slab saw can overheat and deform
the saw housing. We recommend cutting on the 10"
Slab saw for 30 minutes on, then allow 30 minutes
o so the machine can cool down.
• Do not force the tool or attachment to do a job
it is not designed to do.
• Saw blades continue to spin aer turn o,
eventually slowing to a stop.
• Avoid awkward operations and hand
positions. Make sure you have good balance
while working on this machine. A sudden slip
could cause your hand to move into the disc.
• Always stay alert. You must be focused while
working on this machine. Stones can catch on the
saw blade and eject out of the sawing area.
MAINTENANCE
• Always disconnect from power before
servicing. Disconnect machine from power
source before making any adjustments and when
not in use.
• Do not abuse the power cord. Never carry
the machine by the cord or yank it to disconnect
from receptacle. Keep cord away from heat, oil
and sharp edges.
• Do not open the saw housing. There are no
user serviceable parts inside.
• Clean and dry machine aer use.

4
TABLE OF CONTENTS
SAFETY INSTRUCTIONS 2
WARRANTY INFORMATION 5
MACHINE DETAILS 6
OPERATING INSTRUCTIONS 7
CUTTING TIPS 9
MAINTENANCE 10
SAW BLADE ADJUSTMENTS 11
ACCESSORIES 12
FAQS 14
TROUBLESHOOTING 15
REGISTER YOUR PRODUCT
Register your Hi-Tech Diamond 10" Slab saw at
hitechdiamond.com/register to help facilitate
any warranty related requests. You can also
register your 10" Slab saw by completing and
mailing us the enclosed registration form.
Complimentary mailing envelope is included for
your convenience.

5
ONE-YEAR LIMITED WARRANTY
What does this warranty cover?
This warranty covers all structural and electrical
parts of the Hi-Tech Diamond 10" Slab saw such
as the motor, rectifier, etc.
What does this warranty not cover?
This warranty does not cover any consumable
goods such as saw blades, diamond abrasives
and/or polishing products. This warranty also
does not cover any abuse, misuse, intentional
damage, incorrect usage, failure to adequately
take care of the machine, improperly following
the instructions, servicing by someone other than
Hi-Tech Diamond personnel, the or loss and/or
any act of nature.
Who is covered under this warranty?
This warranty only covers the original purchaser
of the equipment. It is non-transferable.
What is the warranty period?
This warranty service is in force for one full year
from the date of your purchase. Please retain
the original invoice of your machine for proof
of warranty or register your 10" Slab saw.
Need our warranty service?
Contact us directly by phone at [phone]
or by email at [e-mail] and
we will assist you. You must prove that you
are under warranty by providing us with
the original invoice of your machine or by
registering your 10" Slab saw to receive our
warranty service.
This 10" Slab saw is warranted by the manufacturer to be free from
defect for the period of one full year from the date of purchase.
Extended warranty program
You’ve made a smart investment by purchasing
this Hi-Tech Diamond 10" Slab saw so protect
it by extending this manufacturer’s warranty
another 1-2 years! For purchase and more details,
visit hitechdiamond.com or call [phone].
Important note: You have up to 45 days from the
purchase date of this Hi-Tech Diamond machine to
add this extended warranty.

6
MACHINE DETAILS
This image shows parts and accessories included with your 10" Slab saw machine.
1
2
3
4
5
1. 10" Slab saw base
unit (1/3 hp, 1,740 rpm
motor)
2. On/o power switch
3. Slab saw blade guard
4. Slab saw table
5. Drain plug
6. 10" thick notched
diamond saw blade
7. 10" thick sintered
diamond saw blade
8. 3/32" Allen wrench
(included with
instruction manual)
9. Slab saw spray
shield (included with
instruction manual)
6
8
9
7
7

7
OPERATING INSTRUCTIONS
1Carefully unpack the slab saw from the box and remove all loose foam and accessories.
Set the packaging aside should you need it in the
future. Check to make sure all parts are present
on both the machine and in the instruction
manual. If you find any missing or damaged
parts, call us immediately at 1 [phone]
or email us at [email protected]om.
Place the slab saw on a table or flat surface in a
well lit location. The machine must sit level.
2
Remove the black saw table from the machine.
The saw table sits above the water reservoir.
Inside the water reservoir, there is a stainless
steel arbor (Fig. A). On the stainless steel arbor,
there are four washers, one nut and a brass bar
(Fig. A). To attach the saw blade, unscrew the
brass bar with a Phillips #2 screwdriver (not
included). Once loosened, slide the brass bar to
the right and completely remove from the arbor.
Next, manually remove the nut from the arbor,
turning counter-clockwise. Also remove two
washers, leaving the remaining two on the arbor.
At this point, the brass bar, nut and two washers
should be completely removed from the arbor.
Slide one of the two included saw blades onto the
arbor. Replace the two washers, knob (turning
clockwise to tighten) and brass bar. Screw the
brass bar back into the housing. Notes: Only use
10" saw blades with 5/8" arbor holes on this trim
saw machine. Do not over tighten the nut, it should
only be slightly tighter than finger tight.
Fig. A
Fig. B
Stainless steel arbor
Washer (4) Nut
Brass bar
3
The slab saw is designed to operate with oil or
water. What you use is your preference. Never
run the saw blade dry. Fill the reservoir with oil
or water until the bottom of the saw blade is 1/8"
deep (Fig. B). Do not overfill the reservoir or there
will be excessive oil or water spraying from the saw
blade while you cut.

8
OPERATING INSTRUCTIONS
7There should be a fine mist coming from your saw blade while it spins. If there isn’t, pour
additional water over the blade until there is a
mist. Note: In use, always make sure the saw blade
is properly lubricated. Never run dry.
8Aer each use, turn o the machine, then unplug your slab saw from its power source.
Drain the water reservoir be removing the drain
plug. Dry the machine and saw blade with paper
towels or a cloth. You may also spin dry the saw
blade by running it on the slab saw until it is
completely dry. Notes: Always dry your saw blade
aer each use to prevent rusting. Keep out of reach
of children.
4
Replace the saw table. Insert the black spray
shield (part #8) into the two slots located at
the front of the saw table (Fig. C). The spray shield
can be inserted in either direction.
5Before turning your slab saw on, manually spin the saw blade towards you to make sure
the blade is not in contact with the saw table.
If there is contact, see page 11 for instructions
on how to position the saw blade for clearance.
Note: Some saw blades tend to wave side to side as
you spin them. They typically straighten out aer
turning the machine on.
6
Put on safety goggles (not included), then
turn on the machine by turning the power
switch to the on position. Note: Cutting speed
depends on the type of saw blade you are using.
Never exceed the saw blade’s maximum rpm.
Fig. C

9
CUTTING TIPS
1Before you make the first cut, line up your rock or glass properly with the saw blade.
Lightly slide the material into the saw blade until
a groove forms, then push the material firmly
through the saw blade. Do not attempt to cut
curves with the trim saw, it is designed to cut
straight lines only. As you near the end of the
cut, reduce pressure to avoid a sudden “break-
through”. Reducing pressure also gives you a
cleaner cut. Note: Never force a saw blade, let the
blade do the work.
2
This slab saw is to be used for slabbing larger
material. The rocks and glass you are sawing
should never exceed more than 2/3 the size of
the visible cutting area of the saw blade. The
blade height of the 10" slab saw is 3-3/4". This
measurement is taken from the saw table to the
top of the saw blade (Fig. D).
3
The red saw blade included with your saw
has a sintered diamond rim that may require
“sharpening” or “dressing” over long, continuous
use. Simply put, the diamonds embedded into
the sintered matrix of the blade are wearing
down, and the metal sintered matrix surrounding
the diamonds are deforming over them. This
metal matrix needs to be abraded away to
expose the diamond surface. Dress and sharpen
sintered saw blades with aluminum oxide, silicon
carbide stone, dressing stick or brick. Run 3-4
times through the saw blade for a quick fix. Note:
Always abide by your saw blade instructions. Not
all saw blades should be sharpened or dressed, as
it can ruin the saw blade.
Fig. D

10
ARBOR & BRASS BAR
Greasing the inside of the brass bar where the
arbor fits into is required because the arbor and
brass bar are made of dierent materials. Over
time, they can seize together, making it impos-
sible to separate from each other. Insert lithium
grease or marine grease inside the brass bar
(Fig. E) every time you change the saw blade. We
suggest greasing this part more frequently than
when you oil (or grease) the arbor and motor sha
because these parts create more friction. Note:
Only use lithium grease or marine grease. Using
dierent oils may cause the arbor to lock-up into
the brass bar, making it impossible to remove.
CLEANING
Aer each use, drain the water reservoir by re-
moving the drain plug. Any used water must not
be disposed down a sink, as rock sediment can
harden like cement, closing o the drain. Dry the
machine and saw blade with paper towels or a
cloth. You may also spin dry the saw blade by run-
ning it on the trim saw until it is completely dry.
Notes: Always dry your saw blade aer each use to
prevent rusting. Keep out of reach of children.
MOTOR DETAILS
For questions regarding the motor, please refer to
the instructions provided by the motor manufac-
turer (included with this instruction manual).
MAINTENANCE
ARBOR & MOTOR SHAFT
Oiling (or greasing) the inside of the stainless
steel arbor and the motor sha is required
because the arbor and motor sha are made of
dierent materials. Over time, they can seize to-
gether, making it impossible to remove the arbor
from the sha. Every two months or so, remove
the arbor from the motor sha by loosening the
two set screws using the included Allen wrench,
turning counter-clockwise. Once loosened, slide
the arbor o the motor sha. Apply a few drops of
motor oil, way oil, lithium or water pump grease
inside the arbor where it fits onto the sha. Also
apply a few drops of oil or grease onto the motor
sha, rubbing to coat the sha lightly. Make sure
there is no excess oil so that oil doesn’t drip down
the motor sha and get into the motor. This will
cause an instant motor burn-out. Replace the
arbor onto the sha, using the Allen wrench to
tighten the two set screws.
Fig. E
Insert grease
here
Arbor
Motor sha with grease

11
SAW BLADE ADJUSTMENTS
BLADE POSITIONING &
CLEARANCE ADJUSTMENTS
Follow these four steps to adjust the position of
the saw arbor and saw blade so that the blade
does not make contact with the saw table. This
process may require trial and error.
1Remove the saw table, then remove the brass bar. Loosen the two set screws located in
the saw arbor using the Allen wrench, turning
counter-clockwise (Fig. F). Once loosened, the
saw arbor can slide side to side.
2
Replace the saw table and position the saw
blade so that it is not in contact with the saw
table. Your blade should spin freely.
3
Remove the saw table to tighten the two
set screws using the Allen wrench, turning
clockwise, and replace the brass bar.
4Replace the saw table and manually rotate the saw blade, making sure the blade is not
making contact with the saw table one last time
before turning the slab saw on.
Fig. F
NEED A REPLACEMENT SET SCREW?
The two set screws located in the saw arbor are available at your local hardware store. The size of the
set screws are 18-8 stainless steel, cup point, 10-32 thread, 3/16" long.

12
ACCESSORIES
Saw fence
The saw fence accessory aligns your material
for precise, accurate cuts. It securely fits onto
the 10" slab saw table and is adjustable to
accommodate the size of the material you are
cutting. If you have trouble cutting your stones
or glass in perfect, straight lines, then this
helpful accessory is for you.
Saw vise
The saw vise accessory secures your material
while you cut so you can be hands-free. It
secures onto the 10" slab saw housing and
is an adjustable guide that allows for precise
cuts. The carriage advances slowly to feed your
material evenly into the saw blade. Installation
is fast and easy. If you don’t want your hands
near the saw blade while you cut, then this
helpful accessory is for you.
The accessories featured on this page are compatible with the Hi-Tech Diamond 10" slab
saw machine. For a listing of all Hi-Tech Diamond products, visit hitechdiamond.com.

13
ACCESSORIES
The saw blades featured on this page are compatible with the Hi-Tech Diamond 10" slab
saw machine. For a listing of all Hi-Tech Diamond products, visit hitechdiamond.com.
Thick notched diamond saw blades
Our green, thick notched diamond saw blades are
designed for cutting and slabbing material such
as agates, jades and geodes.
Available sizes for this trim saw
10" diameter X .031" core X .044" kerf
Note: This saw blade is included with this slab saw
machine.
Thin sintered diamond saw blades
Our red, thin sintered diamond saw blades are
designed for cutting and slabbing material such
as quartz, topaz, glass and fine agates.
Available sizes for this trim saw
10" diameter X .031" core X .038" kerf
Note: This saw blade is included with this slab saw
machine.
Thick sintered diamond saw blades
Our black, thick sintered diamond saw blades are
designed for cutting and slabbing material such
as agates, geodes, tile and ceramic.
Available sizes for this trim saw
10" diameter X .062" core X .078" kerf

14
Kerf
FAQS
What lubricants can I use with this
slab saw?
This slab saw machine is designed to be
operated with oil or water. We recommend
water because it is less messy to work with than
oil. If you are using water as a lubricant, we
suggest adding a coolant to reduce heat buildup
between the saw blade and stone. Some stones,
such as tourmaline for example, fracture with
too much heat. No one likes a fractured stone!
How large should the material be
that I’m cutting?
This slab saw is to be used for slabbing larger
material. The rocks and glass you are cutting
should never exceed more than 2/3 the size of
the visible cutting area of the saw blade. The
blade height of the 10" slab saw is 3-3/4". This
measurement is taken from the saw table to the
top of the saw blade (see below).
What size saw blades can I use on
this slab saw?
Only use 10" diameter saw blades on this slab saw
machine. Please note that only saw blades with
5/8" arbor holes fit onto the saw arbor.
In regards to saw blades, what do
“core” and “kerf” mean?
Core is the thickness of the inside of the saw
blade (the core), while kerf is the thickness of the
saw blade’s rim. When purchasing a saw blade,
the dimension of the kerf is what matters most
because the kerf determines how thick of a cut you
will get. FYI - the kerf gets thinner over time as the
saw blade wears away with continuous cutting.
What is the recommended RPM for
this slab saw?
The RPM speed depends on the type of saw blade
you are using and the saw blade’s maximum
RPM. Remember to never exceed the maximum
RPM of your saw blade.
Core

15
Why is there excessive oil or water
spraying from the saw blade?
If there is excessive oil or water spraying from
the saw blade while you’re cutting, this means
you have over-filled the water reservoir. Fill
the reservoir with water (or oil) so that just the
bottom of the saw blade is sitting in it, about 1/8"
deep (see below).
My saw blades keep rusting. How
can I prevent this?
Rusting occurs when the saw blade is not
properly dried o aer each use or if the saw
blade is le sitting in the saw machine’s water
reservoir when not in use. The best solution to
prevent rusting is to remove the saw blade from
your trim saw aer each use and dry with a paper
towel or cloth. Remember to always keep saw
blades away from children.
TROUBLESHOOTING
What happens if my saw machine
overheats?
The housing that the slab saw is made out of is
polyethylene, which can deform if the machine
is run too long, causing the machine to overheat.
To prevent this from happening, you must take time
to cool your machine. We suggest running your
slab saw for 30 minutes on, 30 minutes o to cool.
Alternatively, you can use an external fan to blow air
through the vent located on the side of the motor
housing. This will help prolong usage time.
I can’t remove the arbor from the
motor shaft.
If you can’t remove the arbor from the motor
sha using the Allen wrench, it is most likely
because the arbor and motor sha seized
together. This is a result from not oiling the inside
of the arbor according to the oiling instructions
on page 10. If it impossible to remove, please
contact Hi-Tech Diamond at 1 [phone] and
one of our specialized technicians will help you
over the phone for correct removal.
Do you sell electrical spare
parts for my slab saw? Whom
do I contact if I need a repair or
replacement for my slab saw?
Due to the technical nature of our machines,
we do not oer electrical spare parts for you to
install yourself such as motors, speed controllers,
rectifiers, etc. Instead, we oer a repair
service that is done in-house by our qualified
technicians. For more information about our
repair service, visit hitechdiamond.com/repairs.

MANUFACTURED BY
Reentel International Inc.
808 Burr Oak Drive
Westmont, IL 60559
U.S.A.
PHONE
1 [phone]
EMAIL
[email protected]om
WEBSITE
hitechdiamond.com
FACEBOOK
facebook.com/hitechdiamond
TWITTER
twitter.com/hitechdiamond
EST. 1984
HI TECH
Rev 12/28/17
EST. 19 84
HI TECH