MK Diamond Products MK-SDG-3 User manual

04.2019
MK-SINGLE DISC GRINDER
OWNERS MANUAL
& PARTS LIST
www.mkdiamond.com
Revision 205
Manual 158273
SDG-11
Caution: Read all safety and operating instructions
before using this equipment. This owner’s manual
MUST accompany the equipment at all times.
MODELS PART #
MK-SDG-3 161180
MK-SDG-11 157377
SDG-3

2
INTRODUCTION
Congratulations on your purchase of a MK-SDG Grinder. We are certain that you will be
pleased with your purchase. MK Diamond takes pride in producing the nest construction
power tools and diamond blades in the industry.
Operated correctly, your MK-SDG Grinder should provide you with years of service. In order to
help you, we have included this manual. This owners manual contains information necessary to
operate and maintain your MK-SDG Grinder safely and correctly. Please take the time to famil-
iarize yourself with the MK-SDG Grinder by reading and reviewing this manual.
Read and follow all safety, operating and maintenance instructions.
If you should have questions concerning your MK-SDG Grinder, please feel free to call our
friendly customer service department at: 800 421-5830
Regards,
MK Diamond
NOTE THIS INFORMATION FOR FUTURE USE:
MODEL NUMBER:
SERIAL NUMBER:
PURCHASE PLACE:
PURCHASE DATE:
WARRANTY: For your (1) one year warranty to be effective, complete the online Product
Registration as soon as possible. Visit www.mkdiamond.com/registration/

3
TABLE OF CONTENTS
SAFETY
Safety Messages 4
Damage Prevention Message 4
General Safety Precautions and Hazard Symbols 4-7
California Proposition 65 Message 8
Gas Safety 9
Electrical Requirements 10-11
Safety Label Locations 12-13
Product Specications 14
UNPACKING and TRANSPORT
Unpacking 15
Contents 15
Transport 15
ASSEMBLY and OPERATION
Handlebar Adjustment 16
Grinding Discs Installation 16
Gasoline Engine Unit 17
Electric Motor Unit 17
MAINTENANCE AND TROUBLESHOOTING
Cleanup 18
Filling Fuel Tank 18
EXPLODED VIEW AND PARTS LIST
Exploded View & Parts List 20-26
ACCESSORIES ORDERING and RETURN INSTRUCTIONS
Accessories 27
Ordering Information 30
Return Material Policy 30
Packaging Instructions 30
Authorized Service Centers 30
Contract 31
Warranty 31

4
MK-SDG SAFETY
Read and follow all safety, operating and maintenance instructions. Failure to read and follow
these instructions could result in injury or death to you or others. Failure to read and follow these
instructions could also result in damage and/or reduced equipment life. Safety warnings and
guidelines do not by themselves eliminate danger. They are not substitutes for proper accident
prevention procedures and good judgement.
SAFETY MESSAGES
A Damage Prevention Message is to inform the user of important information and/or instructions that
could lead to equipment or other property damage if not followed. Information Messages convey
information that pertains to the equipment being used. Each message will be preceded by the word
NOTE, as in the example below.
DAMAGE PREVENTION AND INFORMATION MESSAGES
NOTE: Equipment and/or property damage may result if these instructions are not followed.
GENERAL SAFETY PRECAUTIONS AND HAZARD SYMBOLS
A safety message alerts you to potential hazards that could hurt you or others. Each safety message is
preceded by a safety alert symbol ( ) and one of three words: DANGER, WARNING, or CAUTION.
DANGER You WILL be KILLED or SERIOUSLY INJURED if you DO NOT follow directions.
WARNING You CAN be KILLED or SERIOUSLY INJURED if you DO NOT follow directions.
CAUTION You CAN be INJURED if you DO NOT follow directions. It may also be used to
alert against unsafe practices.
ALWAYS read this Owner’s Manual before operating the machine. DO NOT operate or
service this equipment before reading this entire manual. Read and understand all warn-
ings, instructions and controls on the machine. Know how to stop the equipment quickly in
case of emergency. It is the operators responsibility to use this machine under safe work-
ing conditions and conform with federal, state and local codes or regulations pertaining to
safety, air, pollution, noise etc...
ALWAYS keep the Blade and Belt Guards in place. DO NOT operate this machine with any
guard or safety device removed. A Guard, or any damaged part should be repaired or
replaced immediately.
NEVER operate this equipment without proper protective clothing, shatterproof
glasses, steel-toed boots and other protective devices required by the job. Non-slip
foot wear is recommended.
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In order to prevent injury, the following safety precautions and symbols should be followed at all times!

5
MK-SDG SAFETY
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All visitors and children should be kept a safe distance from work area. Maintain a safe
operating distance to other personnel.
KEEP CHILDREN AWAY
MAKE THE WORKSHOP KID PROOF
Make the workshops kid proof by using padlocks, master switches or by removing starter keys.
ROTATING PARTS
Keep hands, feet, hair, and clothing away from all moving parts to prevent injury. Never oper-
ate the motor with covers, shrouds, or guards, removed.
OVER SPEED
NEVER tamper with the governor components or settings to increase the maximum speed.
Severe personal injury and damage to the engine or equipment can result if operated at
speeds above maximum.
ELECTRICAL SHOCK
NEVER touch electrical wires or components while the engine is running. Exposed, frayed or
worn electrical wiring and plugs can be sources of electrical shock which could cause severe
injury or burns. Do not touch the plug with wet hands.
ALWAYS avoid inhalation of and skin contact with silica dust and/or mist. Provide proper
dust removal. Use dust-collection system when applicable.
NEVER operate the machine in an explosive atmosphere or near combustible materials.
Sparks from the cutting-action of this machine can ignite flammable materials, liquids, gases
or dust.
This equipment should not be operated by persons under 18 years of age.
ALWAYS wear approved respiratory, head, ear and eye protection
when operating this machine.
Before starting the engine/motor, be sure the ON/OFF switch is in the OFF position to pre-
vent accidental starting. Place the ON/OFF switch in the OFF position before performing any
service operation. ALWAYS place the power ON/OFF switch in the OFF position when the
machine is not in use.
ACCIDENTAL STARTS!
PERSONAL PROTECTIVE EQUIPMENT
Engine components can become extremely hot from operation. To prevent severe burns,
do not touch these areas while the engine is running, or immediately after it is turned off.
Never operate the engine with heat shields removed.
HOT PARTS!
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DO NOT FORCE THE TOOL
A power tool will do a job better and safer operating at the rate for which it was designed.
DO NOT force a tool or an attachment to do a job that it was not designed to do.
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6
MK-SDG SAFETY
Consult the owner’s manual for recommended accessories. Using improper accessories
may increase the risk of personal or by-stander injury. Unauthorized equipment
modifications will void all warranties. Manufacturer does not assume responsibility for any
accident due to equipment modifications.
ALWAYS ensure that the machine is on level ground before using.
Serious injury could occur if a power tool is tipped, or if a cutting tool is unintentionally
contacted.
When loading or unloading the machine, use caution. Remove the blade prior to hoisting,
loading and transporting the machine.
USE RECOMMENDED ACCESSORIES
NEVER STAND ON THE TOOL
TRANSPORT
Form a habit of checking to see that keys and adjusting wrenches are removed from
the power tool before it is turned on.
Cluttered work areas and benches invite accidents. Keep area around machine clear of
obstructions which could cause persons to fall.
DO NOT operate equipment in dangerous or hazardous environments. DO NOT use power
tools in damp or wet locations nor expose them to rain. Always keep the work area well
lighted.
REMOVE ADJUSTING KEYS AND WRENCHES
KEEP WORK AREA CLEAN
DO NOT USE IN DANGEROUS PLACES
MAINTAIN TOOLS WITH CARE
Keep tools clean and maintained for the best and safest performance. Always follow
maintenance instructions and examine the machine before use. If any abnormal vibrations
or noises occurs, turn off machine immediately and have the problem corrected before
further use.
DISCONNECT TOOLS
Power tools should always be disconnected before servicing, adjusting or when changing
accessories, such as blades, bits, cutters, and the like.
DO NOT OVERREACH
Keep proper footing and balance at all times by not overreaching.
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SECURE WORK
Clamps or a vise should be used to hold work whenever practical. Keeping your hands free
to operate a power tool is safer.
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USE PROPER APPAREL
DO NOT wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry that may
be caught in moving parts. Non-slip footwear is recommended. Wear protective hair cover-
ing to contain long hair.
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7
MK-SDG SAFETY
Before using a power tool, check for damaged parts. A guard or any other part that is
damaged should be carefully checked to determine if it would operate properly and
perform its intended function. Always check moving parts for proper alignment or binding.
Check for broken parts and mountings and all other conditions that may affect the
operation of the power tool. A guard, or any damaged part, should be properly repaired or
replaced. Always check the machine for loose bolts before starting.
A blade or cutter should always be installed so that rotation is in the direction of the
arrow imprinted on the side of the blade or cutter. It should correspond with the rotational
direction of the motor. Always feed work into a blade against the direction of rotation.
TURN POWER OFF - Do not leave a tool until it comes to a complete stop. ALWAYS
turn a power tool OFF when leaving the work area, or, when a cut is finished.
NEVER LEAVE A TOOL UNATTENDED
CHECK FOR DAMAGED PARTS
DIRECTION OF ROTATION
NEVER disconnect any "emergency or safety devices". These devices are intended for
operator safety. Disconnection of these devices can cause severe injury, bodily harm, or
even death! Disconnection of any of these devices will void all warranties. Unauthorized
equipment modifications will void all warranties. Manufacturer does not assume
responsibility for any accident due to equipment modifications.
NEVER operate this equipment under the influence of drugs or alcohol.
NEVER operate this equipment when not feeling well due to fatigue, illness or taking medicine.
NEVER use this machine with any cutter designed for woodworking.
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On belt driven equipment, overtensioning of belts will result in premature crank and/or bearing
failure.
Whenever necessary, replace nameplate, operation and safety decals when they become
difcult to read.
ALWAYS store equipment properly when it is not being used. Equipment should be stored in
a clean, dry location out of the reach of children
DO NOT lend or rent this equipment without including the Owner's Manual and the Engine/
Motor Manufacturer's Manual.
Check the chemical properties of the material to be cut/grinded and follow all EPA/OSHA
Regulations. (cut/ground)

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CALIFORNIA PROPOSITION 65 MESSAGE
SILICA DUST WARNING
Grinding/cutting/drilling of masonry, concrete, metal and other materials with silica in their composition
may give off dust or mists containing crystalline silica. Silica is a basic component of sand, quartz,
brick clay, granite and numerous other minerals and rocks. Repeated and/or substantial inhalation of
airborne crystalline silica can cause serious or fatal respiratory diseases, including silicosis. In ad-
dition, California and some other authorities have listed respirable crystalline silica as a substance
known to cause cancer. When cutting such materials, always follow respiratory precautions.
Use appropriate NIOSH-approved respiratory protection where dust hazard may occur. Paper masks
or surgical masks without a NIOSH approval number are not recommended because they do little to
protect the worker. For more information about respirator programs, including what respirators have
received NIOSH approval as safe and effective, please visit the NIOSH website at:
http://www.cdc.gov/niosh/topics/respirators
Observe OSHA regulations for respirator use (29 C.F.R.§1910.134).
Visit http://www.osha.gov for more information.
Some dust created by power sanding, sawing, grinding, drilling, and other construction activities con-
tain 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 and cement and other masonry products
•Arsenic and chromium, from chemically treated lumber
For further information, consult the following sources:
http://www.osha.gov/dsg/topics/silicacrystalline/index.html
http://www.cdc.gov/niosh/docs/96-112/
http://oehha.ca.gov/prop65/law/P65law72003.html
http://www.dir.ca.gov/Title8/sub4.html
http://www.P65warnings.ca.gov
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 dust masks that are specially designed to lter out microscopic particles. Where
use of a dust extraction device is possible, it should be used. To achieve a high level of dust collec-
tion, use an industrial HEPA vacuum cleaner. Observe OSHA 29 CFR part 1926.57 and 1926.103.
MK-SDG SAFETY

9
Gasoline is extremely ammable, its vapors can explode if ignited; store only in approved
containers, in well-ventilated, unoccupied buildings and away from sparks or ames. DO
NOT ll the fuel tank while the engine is running or hot. Spilled fuel could ignite if it con-
tacts hot parts or sparks from ignition. DO NOT overll tank. DO NOT start the engine near
spilled fuel. Never use gasoline as a cleaning agent.
Gasoline models are shipped from the factory dry, meaning without fuel or oil. Both must be added
before equipment can be used. Check the engine Manufacturer Owner's Manual for instructions on
fueling, break-in, servicing and proper engine care and use.
Refer to engine manufacturer manual for specic operating procedures and safety warnings.
ALWAYS check the fuel lines and fuel tanks for leaks and cracks before starting the engine.
DO NOT run the machine if fuel leaks are present or the fuel lines are loose.
Accidental start hazard. Disconnect spark plug prior to servicing.
EXPLOSIVE FUEL!
GAS SAFETY PRECAUTIONS
GAS ENGINE SAFETY
Engine exhaust gasses contain poisonous carbon monoxide (an odorless, colorless gas).
Avoid inhaling exhaust fumes Breathing it can cause unconsciousness and even kill you.
Always operate gasoline engine machines in a well-ventilated area. DO NOT operate in ar-
eas where exhaust fumes could accumulate without wearing appropriate respiratory protec-
tion. Never run the engine in a closed building or conned area.
LETHAL EXHAUST GASES!
ALWAYS rell fuel tank in a well-ventilated area.
ALWAYS replace the fuel tank cap after refueling.
ALWAYS close fuel value on engines when machine is not being operated.
FUELING SAFETY
ALWAYS use caution when handling fuel. Shut off the engine and allow to cool before refueling.
Move the machine at least 10 feet (3 meters) from the fueling point before starting the engine, and
make sure the gas cap is on the machine and the fuel can is properly tightened.
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NOTE: Prior to operation of this machine the operator must determine the existence and location of any sub-
surface features that may be hazardous or could damage the equipment, (i.e. electric cable, natural
gas line etc.).
MK-SDG SAFETY

10
MK-SDG SAFETY
WARNING
In order to prevent electrical shock and injury, the following electrical safety precautions and symbols
should be followed at all times!
If permanently connected this tool should be connected to a grounded metal permanent
wiring system; or to a system having an equipment - grounding conductor.
In case of a malfunction or breakdown, grounding provides a path of least resistance for electrical
current to reduce the risk of electric shock. This tool is equipped with an electric cord which has an
equipment-grounding conductor and a grounding plug. The plug must be plugged into a matching
outlet that is properly installed and grounded in accordance with all local codes and ordinances.
• DO NOT modify the plug provided - if it will not t the outlet, have the proper outlet
installed by a qualied electrician.
• Improper connections of the equipment-grounding conductor can result in a risk of electric
shock. The equipment-grounding conductor is the insulated conductor that has an outer
surface that is green, with or without yellow stripes. If repair or replacement of the electric
cord or plug is necessary, DO NOT connect the equipment-grounding conductor to a live
terminal.
• Check with a qualied electrician or service personnel if the grounding instructions are not
completely understood, or if in doubt as to whether the tool is properly grounded.
• Use only 3-wire extension cords that have 3-prong grounding plugs and 3-pole receptacles
that accept the tool’s plug.
• Repair or replace a damaged or worn cord immediately.
This tool is intended for use on a circuit that has an outlet that looks like the one shown in Sketch A.
The tool has a grounding plug that looks like the plug illustrated in Sketch A. A temporary adapter,
which looks like the adapter illustrated in sketches B and C, may be used to connect this plug to a
2-pole receptacle as shown in Sketch B, if a properly grounded outlet is not available. The temporary
adapter should be used only until a properly grounded outlet can be installed by a qualied electri-
cian. The green-colored rigid ear, plug, and the like, extending from the adapter, must be connected
to a permanent ground, such as a properly grounded outlet box.
ELECTRICAL REQUIREMENTS AND GROUNDING INSTRUCTIONS
NOTE:
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Grounding
Means
(A)
Metal Screw
Cover of
Grounded
Outlet Box
(D)
ADAPTER
(C) Grounding
Pin
Grounding
Pin (B)
Circuit and Adapter Information
Use of a temporary adapter is not permitted in Canada.NOTE:

11
MK-SDG SAFETY
WARNING
Use only extension cords that are intended for outdoor use. These extension cords are
identied by a marking "Acceptable for use with outdoor appliances; store indoors while not
in use." Use only extension cords having an electrical rating not less than the rating of the
product. DO NOT use damaged extension cords. Examine extension cords before using and
replace if damaged. DO NOT abuse extension cords and DO NOT yank on any cord to dis-
connect. Keep cords away from heat and sharp edges. Always disconnect the extension cord
from the receptacle before disconnecting the product from the extension cord.
ALWAYS make certain that the power source required for the electric motor is correct and always
use the correct NEMA conguration plug. Motors can burn out when the line voltage falls 10% below
the voltage rating of the motor. Failure to use proper voltage will cause the motor to overheat. Make
certain that the correct size grounded (3-wires) extension cord is used.
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WARNING
Use of undersized extension cords result in low voltage to the motor that can result in motor burnout
and premature failure. MK Diamond warns that equipment returned to us showing signs of being run
in a low voltage condition, through the use of undersized extension cords,will be repaired or replaced
totally at the customer’s expense. There will be no warranty claim.
To choose the proper extension cord,
• Locate the length of extension cord needed in the table below.
• Once the proper length is found, move down the column to obtain the correct
AWG size required for that length of extension cord.
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MOTOR SPECS EXTENSION CORD LENGTH
Motor Voltage Amps 25' 50' 100' 200’
161179 208/230V 1 Ph 17.8-17.4 16 ga 12 ga 10 ga 6 ga

12
OPERATION & SAFETY DECALS
The MK-SDG is equipped with a number of safety decals. These decals are provided for operator
safety and maintenance information. Should any of these operation or safety decals become unread-
able, replacements can be obtained by calling [phone].
Part # 164202
A
C
F
G
D
H
IJ
E
Part # 155587
CAUTION
DO NOT
operate without
guards in place.
!
Part # 155038
SERVICE OR
WARRANTY
FOR INFORMATION ON
PLEASE CALL
1-800-474-5594
Part # 170480
Part # 155585
CAUTION
Keep
hands and
feet clear.
!
Part # 154399
Gas
NOTICE
Overtensioning of belts will
result in premature crank
and/or bearing failure.
!Part # 155579
CAUTION
DO NOT
touch hot
surface.
!
Part # 155578
CAUTION
Accidental start hazard.
Disconnect spark plug prior
to servicing.
!
Part # 155580
WARNING
When refueling
stop engine and
allow to cool.
DO NOT
overll tank.
!
WARNING
• Use of this equipment can expose you to chemicals
including nickel and crystalline silica which are known to
the State of California to cause cancer.
• For more information go to www.P65Warnings.ca.gov.
• Repeated and/or substantial inhalation can cause
serious or fatal respiratory diseases including silicosis.
• Employ dust controls and protection per
OSHA/NIOSH/MSHA.
!
Label Part #164202
B
K
M
Console Label Part # 157888
L
WARNING
Always wear safety approved
hearing, eye, head and
respiratory protection
DO NOT operate this
equipment before reading
the owner’s manual.
WARNING: This equipment contains chemicals known to
the State of California to cause cancer and birth defects or other
reproductive harm. These chemicals are contained in various
components, fluids and paint, including but not limited to, fuel, oil,
electric motors and batteries. In addition, gasoline/diesel powered
equipment emits engine exhaust and fumes, and when serviced,
cleaned or maintained generate used oil, waste fluids, fumes,
grease, grime and particulates from component wear and silica dust
which contain chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.
!
DANGER
Lethal exhaust
gases. Use only
in well ventilated
areas. DO NOT
use indoors.
F
J
E, I
H
B
K, L
C & D
A
G
MK-SDG SAFETY
Decal Location Description
A Engine Warning - Silica
B Console Read Manual
C Front - Apron Hands & Feet Clear
D Front - Apron Overtensioning Belts
E Engine QR Code for Manuals
F Belt Guard Guards in Place
G Arm Service
H Engine - Top Hot Surface
I Engine - Top Accidental Start
J Engine - Frame Refueling
K Console Prop 65
L Console Lethal Exhaust
M Console Machinery Hazard
Gas

13
OPERATION & SAFETY DECALS
The MK-SDG is equipped with a number of safety decals. These decals are provided for operator
safety and maintenance information. Should any of these operation or safety decals become unread-
able, replacements can be obtained by calling [phone].
Part # 164202
A
C
F
DGH
E
Part # 155038
SERVICE OR
WARRANTY
FOR INFORMATION ON
PLEASE CALL
1-800-474-5594
Part # 170480
Part # 155585
CAUTION
Keep
hands and
feet clear.
!
Part # 154399
Electric
NOTICE
Overtensioning of belts will
result in premature crank
and/or bearing failure.
!
CAUTION
DO NOT
touch hot
surface.
!
Part # 155578
WARNING
• Use of this equipment can expose you to chemicals
including nickel and crystalline silica which are known to
the State of California to cause cancer.
• For more information go to www.P65Warnings.ca.gov.
• Repeated and/or substantial inhalation can cause
serious or fatal respiratory diseases including silicosis.
• Employ dust controls and protection per
OSHA/NIOSH/MSHA.
!
Label Part #164202
B
I
J
Console Label Part # 160046
WARNING
Always wear safety approved
hearing, eye, head and
respiratory protection
DO NOT operate this
equipment before reading
the owner’s manual.
WARNING: This equipment contains chemicals known to
the State of California to cause cancer and birth defects or other
reproductive harm. These chemicals are contained in various
components, fluids and paint, including but not limited to, fuel, oil,
electric motors and batteries. In addition, gasoline/diesel powered
equipment emits engine exhaust and fumes, and when serviced,
cleaned or maintained generate used oil, waste fluids, fumes,
grease, grime and particulates from component wear and silica dust
which contain chemicals known to the State of California to cause
cancer and birth defects or other reproductive harm.
For more information go to www.P65Warnings.ca.gov.
!
Part # 155672
NOTICE
Most motor problems are caused by
low voltage from improper extension
cords. See owner’s manual for
extension cord selection.
!
C
H
IE
A
G
B
D
F
MK-SDG SAFETY
Decal Location Description
A Motor Warning - Silica
B Console Read Manual
C Side - Apron Hands & Feet Clear
D Front - Apron Overtensioning Belts
E Console QR Code for Manuals
F Frame Service
G Frame Hot Surface
H Frame Accidental Start
I Console Prop 65
J Console Machinery Hazard
Electric

14
PRODUCT SPECIFICATIONS
The MK-SDG is a versatile unit. Operated and used according to this manual, the MK-SDG
will provide years of dependable service.
FEATURES
SPECIFICATIONS
• Uses either a 10 or 20 segment 10" diameter diamond grinding discs to level, smooth or
clean the top surface of concrete slabs. (A)
• Provides a smoother finish compared to other methods such as scarifiers or scabblers.
• Two-position wheel carriage for grinding and easy transport. (B)
• Front taper for enhanced visibility.
• Removable nose weight and handle for easy transportation. (C)
• Dust shroud helps contain grinding debris.
• Works on concrete slabs, terrazzo, brick, stone and ceramic tile floors.
Specifications for the MK-SDG are listed in the table below.
Model MK-SDG-3 MK-SDG-11
Engine ABB Baldor (Electric) Honda (Gas)
Power 3 HP GX340
Disc RPM 980 980
Disc Capacity 10" (254mm) 10" (254mm)
Ballast 70 lbs. (32kg) 70 lbs. (32kg)
Weight 212 lbs. (96kg) 212 lbs. (96kg)
LxWxH (inches) 40” x 16” x 42” 40” x 16” x 42”
LxWxH (mm) 1016 x 406 x 1066 1016 x 406 x 1066
Part # 161180 157377
A B C
MK-SDG PRODUCT SPECIFICATIONS

15
06.2010
MK-SINGLE DISK GRINDER
OWNERS MANUAL
PARTS LIST &
OPERATING INSTRUCTIONS
www.mkdiamond.com
Caution: Read all safety and operating instructions
before using this equipment. This parts list MUST
accompany the equipment at all times.
Revision 201
Manual 158273
SDG-11
SDG-1.5
CONTENTS
MK-SDG UNPACKING & TRANSPORTATION
06.2010
MK-SINGLE DISK GRINDER
OWNERS MANUAL
PARTS LIST &
OPERATING INSTRUCTIONS
www.mkdiamond.com
Caution: Read all safety and operating instructions
before using this equipment. This parts list MUST
accompany the equipment at all times.
Revision 201
Manual 158273
SDG-11
SDG-1.5
Use proper lifting techniques when lifting the MK-SDG.
If not already done, remove the MK-SDG, accessory box from the carton.
In your container, you will find
One (1) MK-SDG
One (1) MK-SDG Owners Manual
Owners
Manual
Owners
Manual
MK-SDG Warranty
Card
CAUTION
One (1) Owners Manual
One (1) warranty card
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MK DiaMonD Warranty CarD
q tile distriButor q home CeNter q equipmeNt supply house
q tool supply q Bldg material supply q reNtal equipmeNt house
are you a do-it-yourselFer qor CoNtraCtor qIF so, what type? tile qmasoNry qother
what Criteria was importaNt iN ChoosiNg this saw? (rate From 1 to 5, 5 BeiNg the most importaNt)
power preCisioN portaBility availaBility other
If within one (1) Year from the date of purchase, this MK Diamond saw fails due to defect in material or workmanship, MK will repair it, free of charge when the unit is re-
turned to the dealer where it was purchased. This warranty DOES NOT cover normal wear or damage resulting from operator abuse. In no event shall MK Diamond Products,
Inc. be liable for consequential damages arising out of the failure of any product if operated improperly. MK Diamond Products may act as a warranty station for motor/en-
gine repairs based on an individual agreement with the manufacturer. This warranty is in lieu of all other warranties express or implied.
©2010 All Rights reserved. MK Diamond Products, Inc. • P/N 155037 MK Warranty Card (02/10)
mK diamoNd warraNty 1315 Storm Parkway, Torrance, CA 90509 USA | www.mkdiamond.com | 1.800.421.5830 | 1.310. 539.5158
where did you purChase this saw Fro m ? N a me
CommeNts or suggestioNs:
priCe
date purChased
TRANSPORT
1. The MK-SDG weighs approximately two hundred and twelve (212) pounds;
use care when transporting. The unit needs to be rolled from one location to
another.
2. Never try to lift the unit by yourself.
CAUTION
Handle
Wheels
GAS GRINDER ELECTRIC GRINDER
Handle
Wheels

16
MK-SDG ASSEMBLY
Follow the diagram below to prepare your MK-SDG for operation.
ASSEMBLY
HANDLEBAR ADJUSTMENT
Adjust the Handlebar, as shown in the figure to the right, for
ease of operation and comfort of the user.
GRINDING DISCS INSTALLATION
You need to install the grinding discs before operation of the MK-SDG
The figure to the left
shows the components
needed to install the discs.

17
MK-SDG OPERATION
BEFORE STARTING
FOR GASOLINE ENGINE
1. Use correct diamond wheel for grinding conditions.
2. Ensure wheel mountings are clean and bolts are tightened securely.
3. Check water jet for adequate flow.
4. Place grinding wheels on surface.
5. Start and warm up engine. Refer to engine owners manual for details.
6. If application requires water, adjust water flow.
7. Adjust speed as required by application.
DAILY MAINTENANCE
1. Check engine oil level. Refer to engine owners manual for details.
2. Check and clean air filter.
3. Lubricate grease points.
4. Check belt tension
5. Check for fluid leaks and loose or damaged parts.
BEFORE STARTING
FOR ELECTRIC MOTOR
1. Choose correct diamond wheels for the job condition.
2. Ensure grinding wheel mountings are clean and the
retaining bolts are securely tightened.
3. Check for adequate water flow. (If water is required.)
4. Be sure the grinding wheels are positioned over the work area.
5. Adjust water flow. (If application requires water)
6. While holding securely to the handlebar, turn power switch to "ON"
position. Refer to motor owners manual for details.
DAILY MAINTENANCE
1. Lubricate grease points.
2. Check belt tension.
Definitive information on engine procedures and
maintenance is contained in the engine manual
provided separately. Perform all procedures as
recommended by the engine manual.
NOTE:

18
CLEAN UP
Engine parts are extremely hot following use. Allow engine to cool 1/2 hour
before cleaning. Use care during cleanup to avoid injury.
NOTE: 1. To extend operating life, the MK-SDG should be cleaned following every use.
2. Using a garden hose or pressure washer can force water into the air cleaner or
muffler opening.
3. Use care when cleaning around electrical components.
FILLING FUEL TANK
1. Gasoline is highly flammable and explosive. You can be burned or seriously injured when
handling fuel.
2. To fuel, stop engine if running, and allow it to cool.
3. Refuel in a well-ventilated area.
4. Keep gasoline away from appliance pilot lights, barbecues, electric appliances, power
tools, etc.
5. Wipe up spills immediately
NOTE: 1. Fuel can damage paint and plastic. Be careful not to spill fuel when filling
the fuel tank.
2. Damage caused by spilled fuel IS NOT covered under the warranty.
3. DO NOT use stale or contaminated gasoline, or an oil/gasoline mixture.
4. Use unleaded gasoline with a pump octane rating of 86 or higher.
WARNING
CAUTION
MK-SDG CLEANUP
Refer to engine owners manual.

19
NOTES

20
MK-SDG EXPLODED VIEW
MK-SDG, GRINDER LESS ENGINE P/N 157893
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ITEM DESCRIPTION PART # QTY.
1 NUT, HEX, 3/8-16 101188 1
2NUT, HEX, 5/16-18 101196 2
3HOSE, VINYL 1/4X3/8 (1.0') 132951 1
4COLLAR, 1.13 ODX.625ID .5 WIDE 140012 2
5VALVE, BALL 1/2" 150843 1
6WASHER, FLAT, SAE, 3/8 150923 13
7WASHER, 1/2 SAE FLAT 150924 5
8WASHER, LOCK, SPLIT, 3/8 150925 5
9CLAMP, HPSE, 5/8 151198 2
10 FITTING, 1/2 MNPT X 3/4 FNH 151322 1
11 SCREW, HEX HD, CAP, 5/16-18 X 3/4 151369 17
12 WASHER, LOCK, SPLIT, 3/8 151747 19
13 WASHER, FLAT, SAE, 5/16 151754 17
14 NUT, HEX, NYLK, 3/8-16 152505 6
15 NUT, LOCK STEEL 1/2" NPT 152729 1