MK Diamond Products MK-660 SERIES User manual

12.2010
MK-660 TILE SAW
OWNER'S 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 102
Manual Part# 153461

2
INTRODUCTION
Congratulations on your purchase of a MK-660 Saw. 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-660 Saw 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-660 Saw safely and correctly. Please take the time to familiarize
yourself with the MK-660 Saw by reading and reviewing this manual.
Read and follow all safety, operating and maintenance instructions.
If you should have questions concerning your MK-660 Saw, 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:
NOTE: For your (1) one year warranty to be effective, complete the warranty card
(including the Serial Number) and mail it in as soon as possible.

3
TABLE OF CONTENTS
SAFETY
Rules for Safe Operation 4-6
California Proposition 65 Message 6
Hazard Symbols 7
Electrical Requirements 8-10
Safety Label Locations 11
Product Specications 12
UNPACKING, TRANSPORT and ASSEMBLY
Unpacking 13
Contents 13
Transport 14
Stand 14
STARTUP, ADJUSTMENT, OPERATION and SHUTDOWN
Cutting Head Installation 15
Diamond Blade Installation 15-16
Adjustable Cutting Guide Installation 16
Splash Guard Installation 17
Water Pump Installation 17
Pre-Start Inspection 17-18
Connecting the Water Pump 18
Water Pump Setup for Operation 19
Recirculation 19
Setup for Operation 20
Portable Generator 20
Operation (Cutting Straight edges, Diagonal Cutting, 45° Miter Cutting, Off-Angle Cutting) 21-24
Cleanup 25-26
MAINTENANCE AND TROUBLESHOOTING
Maintenance 26-29
Flow adjustment 29
Blade Dressing 30
Diamond Blade Change-Out 31
Troubleshooting 32-34
EXPLODED VIEW AND PARTS LIST
Exploded View & Parts List 36-38
ACCESSORIES ORDERING and RETURN INSTRUCTIONS
Accessories 41
Ordering Information 42
Return Material Policy 42
Packaging Instructions 42
Authorized Service Centers 42

4
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 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.
In order to prevent injury, the following safety precautions and symbols should be followed at all times!
GENERAL SAFETY PRECAUTIONS AND HAZARD SYMBOLS
SAFETY PRECAUTIONS
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.
DO NOT use power tools in damp or wet locations nor expose them to rain. Always
keep the work area well lit.
All visitors and children should be kept a safe distance from work area.
A safety message alerts you to potential hazards that could hurt you or others. Each safety message is preced-
ed 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.
ALWAYS keep the Blade Guards in place.
REMOVE ADJUSTING KEYS AND WRENCHES
KEEP WORK AREA CLEAN
KEEP CHILDREN AWAY
DO NOT USE IN DANGEROUS PLACES
MK-660 TILE SAW SAFETY

5
If using an extension cord make sure it is in good condition first. When using an extension
cord, be sure to use one heavy enough to carry the current your product will draw. An
undersized cord will cause a drop in line voltage that will result in a loss of power and
overheating. Page 10 shows the correct AWG size to use depending on cord length and
nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage
number, the heavier the cord.
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
covering to contain long hair.
Keep proper footing and balance at all times by not overreaching.
Clamps or a vise should be used to hold work whenever practical. Keeping your
hands free to operate a power tool is safer.
Keep tools clean for the best and safest performance. Always follow maintenance
instructions for lubricating and when changing accessories.
Power tools should always be disconnected before servicing or when changing
accessories, such as blades, bits, cutters, and the like.
Make the workshop kid proof by using padlocks, master switches or by removing starter
keys.
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.
MAKE THE WORKSHOP KID PROOF
DO NOT FORCE THE TOOL
USE THE RIGHT TOOL
USE THE PROPER EXTENSION CORD
USE PROPER APPAREL
ALWAYS wear approved eye protection.
ALWAYS wear approved respiratory protection.
ALWAYS place the power ON/OFF switch in the OFF position when the saw is not in use.
ON / OFF
SECURE WORK
DO NOT OVERREACH
MAINTAIN TOOLS WITH CARE
DISCONNECT TOOLS
MK-660 TILE SAW SAFETY

6
Consult the Owner’s Manual for recommended accessories. Using improper accessories
may increase the risk of personal or by-stander injury.
Serious injury could occur if a power tool is tipped, or if a cutting tool is unintentionally
contacted.
Before using a power tool, check for damaged part. A guard or any other part that is
damaged should be carefully checked to determine if 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 feed work into a blade or cutter against the direction of rotation. A blade
or cutter should always be installed such that rotation is in the direction of the arrow
imprinted on the side of the blade or cutter.
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.
CALIFORNIA PROPOSITION 65 MESSAGE
USE RECOMMENDED ACCESSORIES
NEVER LEAVE A TOOL UNATTENDED
NEVER STAND ON THE TOOL
CHECK FOR DAMAGED PARTS
DIRECTION OF FEED
WARNING
MK-660 TILE SAW SAFETY
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/SLTC/silicacrystalline/index.html
http://www.cdc.gov/niosh/consilic.html
http://oehha.ca.gov/prop65/law/P65law72003.html
http://www.dir.ca.gov/Title8/sub4.html
Your risk from these exposures varies depending on how often you do this type of work. To reduce
your exposure to these chemicals, work in a well-ventilated area, and work with approved safety
equipment, such as those dust masks that are specially designed to lter out microscopic particles.

7
Sawing and drilling generates dust. Excessive airborne particles may cause irritation to eyes, skin
and respiratory tract. To avoid breathing impairment, always employ dust controls and protection
suitable to the material being sawed or drilled; See OSHA (29 CFR Part 1910.1200).
HAZARD SYMBOLS
NEVER touch electrical wires or components while the engine is running. They can be
sources of electrical shock which could cause severe injury or burns.
Keep hands, feet, hair, and clothing away from all moving parts to prevent injury.
Never operate the motor with covers, shrouds, or guards removed.
NEVER tamper with the governor components or settings to increase the maximum
speed. Severe personal injury and damage to the motor or equipment can result if
operated at speeds above maximum.
((
)
)
on
DO NOT expose to rain or use in damp locations.
WARNING
ROTATING PARTS
ELECTRICAL SHOCK
OVER SPEED
DO NOT EXPOSE TO RAIN
MK-660 TILE SAW SAFETY
WARNING
Diamond Blades improperly used are dangerous. Comply with American National Standards Institute
Safety Code, B7.1 and, Occupational Safety and Health Act covering Speed, Safety Guards, Flanges,
Mounting Procedures, General Operating Rules, Handling, Storage and General Machine Conditions.

8
ELECTRICAL REQUIREMENTS AND GROUNDING INSTRUCTIONS
In order to prevent potential electrical shock and injury, the following electrical safety precautions and
symbols should be followed at all times!
In case of a malfunction or breakdown, grounding provides a path of least resistance for electric cur-
rent to reduce the risk of electric shock. This tool is equipped with an electric cord having an equip-
ment-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.
WARNING
• 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
WARNING
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, lug, and the like, extending from the adapter, must be connected
to a permanent ground such as a properly grounded outlet box.
NOTE: Use of a temporary adapter is not permitted in Canada.
Grounding
Means
(A)
Metal Screw
Cover of
Grounded
Outlet Box
(D)
ADAPTER
(C) Grounding
Pin
Grounding
Pin (B)
Circuit and Adapter Information
MK-660 TILE SAW SAFETY

9
Supporting
Surface
Power
Tool
Drip Loop
Power
Cord
Drip Loop Information
To avoid the possibility of the appliance plug or receptacle getting wet, position the machine to one
side of a wall mounted receptacle. This will prevent water from dripping onto the receptacle or plug. A
“drip loop,” shown in the picture below, should be arranged by the user to properly position the power cord
relative to the power source.
The “drip loop” is that part of the cord below the level of the receptacle, or the connector, if an exten-
sion cord is used. This method of positioning the cord prevents the travel of water along the power
cord and coming in contact with the receptacle.
If the plug or receptacle gets wet, DO NOT unplug the cord. Disconnect the fuse or circuit breaker
that supplies power to the tool. Then unplug and examine for presence of water in the receptacle.
WARNING
Use only extension cords that are intended for outdoor use. These extension cords are
identified 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 disconnect. Keep cords away from heat and sharp edges. Always disconnect the
extension cord from the receptacle before disconnecting the product from the extension
cord.
WARNING
MK-660 TILE SAW SAFETY

10
Use of under sized 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.
To reduce the risk of electrocution, keep all connections dry and off the ground. Do
not touch the plug with wet hands.
WARNING
WARNING
EXTENSION CORD MINIMUM GAGE FOR LENGTH
VOLTS TOTAL LENGTH OF CORD IN FEET
25 ft. AWG 50 ft. AWG 100 ft. AWG 150 ft. AWG
120v 18 16 14 12
MK-660 TILE SAW SAFETY
TILE SAW SPECIFIC WARNINGS
Wear eye protection.
Use splash guard for every operation for which it can be used.
Disconnect saw before servicing, when changing cutting blades, and cleaning.
Replace damaged cutting blade before operating.
WARNING

11
The warning labels contain important safety information. Please read the information contained on
each safety label. These labels are considered a permanent part of your saw. If a label comes off or
becomes hard to read, contact MK Diamond or your dealer for a replacement.
SAFETY LABEL LOCATIONS
MK-660 TILE SAW SAFETY
Decal/Label Location Description
ACutting Head Front Warning - Read Owner's Manual
BCutting Head Front Warning - Silica Warning
CCutting Head Back Notice - Voltage / extension cords
DCutting Head Back Service / Warranty
ECutting Head Back Caution - Use with GFCI only
FCutting Head Back Caution - Receptacle for water pump
Label C
Label B
Label D Label E Label F
Label A
SERVICE OR
WARRANTY
FORINFORMATIONON
PLEASE CALL
1-800-474-5594
NOTICE
Most Motor Problems are caused by improper
voltage and extension cords. Cord should be
one-piece and short as possible. Cord
selection should match the following table.
1-2 H.P.
25’
50’
75’
100’
150’
250’
Max. Cord Length
Max. Cord Length
Max. Cord Length
No. 12 Wire
No. 10 Wire
No. 8 Wire
115v 230v
!
Receptacle is for
water pump only.
125V, .6 ampsmax.
!CAUTION
This saw is to be used
with a Ground Fault
Circuit Interrupter.
!CAUTION
Tile Master Label Sheet Part#166012
Label E Label F
Label B
Label A
Label DLabel C
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 addition,California and some other
authorities have listed respirable crystalline silica as a substance known to cause cancer.
!
For Your Own Safety Read Instruction Manual
Before Operating Saw.
Wear Eye Protection.
Disconnect Saw Before Servicing, when Changing
Cutting Wheels and Cleaning.
Use Tool Only with Smooth Edge Cutting Wheels
Free of Openings and Grooves.
Replace Damaged Cutting Wheel Before Operating.
Do Not Fill Water Bath Above Water Fill Line.
See Manual for Pump Replacement.
!
WARNING

12
PRODUCT SPECIFICATIONS
The MK-660 Saw is a versatile Tile Saw. Operated and used according to this manual, the
MK-660 will provide years of dependable service.
GENERAL DESCRIPTION
MOTOR SPECIFICATIONS
BLADE CAPACITY
TILE TYPES
The MK-660 Saw is engineered as a tabletop or stand mounted wet tile saw. The saw includes a
powerful 120v electric motor. The saw is capable of cutting tile up to fourteen (14) inches in length.
The saw can cut an object two (2) inches thick in one pass.
Motor specifications for the MK-660 Saw are listed in the table below:
Voltage 120v
Motor Only Amperage 8.8 a
Frequency 60Hz
RPM 3500 rpm
Horse Power 3/4 hp
Weight 53 lbs.
The MK-660 Saw uses a seven (7) inch (178mm) diameter, wet cutting continuous rim, MK Diamond
blade with a five-eighths (5/8) inch (15.875 mm) arbor.
The MK-660 Saw can cut a variety of tile types including stone, masonry, and lapidary products.
NOTE: The MK-660 Saw is not designed to cut plastic or metals.
MK-660 TILE SAW SAFETY

13
04.2010
MK-660 SERIES
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 100
Manual Part# 153461
04.2010
MK-660 SERIES
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 100
Manual Part# 153461
UNPACKING
Use proper lifting techniques when lifting the MK-660 Saw.
If not done, remove the MK-660 Saw, Cutting Head and accessory box from the carton.
CONTENTS
In your container, you will find one (1) MK-660 Frame and Water Pan, one (1) MK-660 Cutting Head,
(1) Cutting Head Height Adjusting Knob, (1) Height Adjusting Knob Flat Washer, one (1) 7-inch Wet
Cutting Continuous Rim Diamond Blade, one (1) Adjustable Cutting Guide, one (1) Electric Water
Pump, one (1) Pump Discharge Fitting, one (1) Cooling Transfer Tube, one (1) Flow Adjusting
Clamp, one (1) Drain Plug, one (1) Blade Wrench, one (1) Table Clip, one (1) Inner Flange Wrench,
(1) Splash Guard, one (1) Owner's Manual, one (1) Pump Manual and one (1) Warranty Card.
CAUTION
Your MK-660 Saw has been shipped from the factory thoroughly inspected. Only minimal assembly
is required.
MK-660 TILE SAW UNPACKING
Name
address
City
state zip Code
phoNe Fax
e-mail
produCt model
part NumBer
maChiNe serial#
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 por taBility 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
MK-660 Frame
and Water Pan
MK-660 Cutting
Head
Height Adjusting
Knob
Height Adjusting
Knob Flat Washer
Diamond Blade
Adjustable
Cutting Guide
Electric Water
Pump
Pump Discharge
Fitting
Cooling Transfer
Tube
Flow Adjusting
Clamp
Drain Plug Blade Wrench
and Table Clip
Inner Flange
Wrench
Splash Guard Owner's Manual
Pump Manual Warranty Card

14
TRANSPORT
The MK-660 Saw is designed with a rigid frame and removable Cutting Head. Always use proper
lifting techniques when lifting the MK-660 Saw.
To lift the saw, grasp the front and back of the frame at the lift points shown below.
1. The MK-660 Saw weighs approximately fifty-three (53) pounds; use care when transporting.
2. Never transport the MK-660 Saw with water in the Water Pan.
CAUTION
MK-660 TILE SAW TRANSPORT
Lift Point
Lift Point
Cutting Head
The MK-660 Saw weighs fifty-three (53) pounds; follow the guidelines in the TRANSPORT
section when placing it on the stand (MK Diamond Part# 151889).
If using the Optional MK Diamond Stand, follow these steps:
STAND (Optional)
CAUTION
(A)
Open the stand and place on
at surface
(B)
Remove Water Basin,
place saw on stand
(C)
Ensure saw frame is
positioned properly
(D)
Reinstall the Water Basin
NOTE:

15
(A)
Place the Flat Washer onto
the Height Adjusting Knob
MK-660 TILE SAW ASSEMBLY
CUTTING HEAD INSTALLATION
Follow the assembly instructions to prepare your MK-660 Saw for operation.
NOTE: If the Cutting Head is installed, go to step next step.
(B)
Align Cutting Head Pivot
Hole to the Post, Pivot Shaft
(C)
Verify the Cutting Head is
completely installed and seated
on the Pivot Shaft
(D)
Install the Adjusting Knob
DIAMOND BLADE INSTALLATION
NOTE: When installing the Retaining Screw, do not “cross-thread" and DO NOT over tighten the
screw.
(A)
Loosen the Blade Guard
Retaining Screw
(B)
Open the Outer Blade Guard to
expose the Retaining Nut and
Flanges
(C)
Using the Blade Nut Wrench,
loosen and then remove the
Retaining Nut and Outer Flange

16
MK-660 TILE SAW ASSEMBLY
(D)
Locate the Inner Flange
Wrench Retaining Holes
(E)
Install Diamond Blade
onto Blade Shaft
(F)
Verify the Blade is seated on the
Blade Shaft and direction
of rotation is correct
(G)
Install the Retaining Nut and Outer
Flange. Hold the Shaft using the
Inner Flange Retaining Wrench
and tighten using the Blade
Wrench
(H)
Close the Outer Blade Guard
and tighten the Blade Guard
Retaining Screw
(I)
Tighten the Outer Blade Guard
Pivot Screw
ADJUSTABLE CUTTING GUIDE INSTALLATION
(A)
Loosen adjustable Cutting
Guide retaining thumbscrew and
place it over the movable
Cutting Table Ruler/Stop
(B)
Place the adjustable Cutting
Guide onto the movable Cutting
Table Ruler/Stop and tighten the
retaining thumbscrew

17
MK-660 TILE SAW ASSEMBLY
SPLASH GUARD INSTALLATION
Follow the assembly instructions to prepare your MK-660 Saw for operation.
(A)
Install the retaining thumbscrew
through the washer and Splash
Guard, then align to the hole
(B)
Install the Splash Guard
onto the Blade Guard
WATER PUMP INSTALLATION
(A)
Install Water Pump Discharge
Fitting
(B)
Press one end of the Cooling
Transfer Tube onto the Water
Pump Discharge Fitting
(C)
Slide Cooling Flow Adjusting Clamp
onto the Cooling Transfer Tube
PRE-START INSPECTION
Prior to beginning work, a pre-start inspection of the saw should be preformed.
(A)
Ensure the ON/OFF Switch is in
the OFF position
(B)
Verify the movable Cutting
Table moves freely
(C)
Inspect the Diamond Blade for
damage - verify the blade is correct
for the material being cut

18
1. To prevent the possibility of electrical shock, the MK-660 Saw MUST be de-energized
when connecting the Water Pump.
2. To prevent the possibility of electrical shock, use only MK Diamond qualied
replacement parts.
MK-660 TILE SAW ASSEMBLY
(D)
Inspect the Pump Assembly for
damage - ensure the cord is free
of cracks or cuts
(E)
Inspect the MK-660 for dam-
age - ensure the cord is free
of cracks or cuts
CONNECTING THE WATER PUMP
Prior to beginning work, a pre-start inspection of the saw should be preformed.
WARNING
NOTE: To prevent pump damage, the Water Pump must be disconnected if cutting with a Dry Blade.
(A)
Connect the Coolant Transfer
Tube to the inlet connection of
the Blade Guard
(B)
Connect the Water Pump power
cord to the connection found on
the back of the motor

19
MK-660 TILE SAW ASSEMBLY
WATER PUMP SETUP FOR OPERATION
The Water Pump can be setup for operation in two ways, External Water Source or Re-circulation.
NOTE: To prevent pump damage, the Water Pump must be disconnected if cutting with a Dry Blade.
(A)
Remove the Drain Plug
(B)
Place the Water Pump
in an external container
(C)
Fill the external container until
water completely covers the
Water Pump suction
(A)
Place an external catch Basin
below the Water Pan drain
hole
RECIRCULATION
NOTE: When using the re-circulation method, the water should be changed often for longer pump life.
(A)
Ensure the Drain Plug is in-
stalled in the Water Pan
(B)
Place the Water Pump in the
back of the Water Pan
(C)
Fill the Water Pan until water
completely covers the Water
Pump suction

20
1. Check for damaged, broken, or missing parts.
2. Verify the On/Off switch is in the OFF position.
3. Before connecting the MK-660 Saw to a power supply, be sure the voltage, cycle
and phase of the job site power source meet the requirements of the table below:
(A) Ensure the ON/OFF Switch is in the OFF position
(B) Plug MK-660 Saw into the GFCI
(C) Plug the GFCI into the power source
VOLTAGE: 120v
CYCLE: 60hz
PHASE: 1-phase
MK-660 TILE SAW OPERATION
MK-660 SAW SETUP FOR OPERATION
CAUTION
If using a portable generator to provide power, ensure the generator meets the following minimum
requirements: 8 KW 120/240 volts 66.7/33.3 amps Single Phase
4. If using an extension power cord, make sure the length and wire gauge
correspond to the requirements listed in the table on page 10. An extension
power cord that is too small in wire gauge (diameter), or too long in length, will
cause the motor to overheat and could cause premature failure.
5. Use an approved Ground Fault Circuit Interrupter (GFCI).
6. Do not cover the motor vents as this could lead to motor overheating.
NOTE:
NOTE:
PORTABLE GENERATOR
In order to avoid breaker tripping, a 20-amp circuit breaker should be used.
MK Diamond has available, as an accessory item, (Part # 152610) a plug-in GFCI that
may be plugged into a properly installed and grounded 3-pole outlet.