MK Diamond Products MK-370 User manual

05.2010

MK-370 TILE SAW

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 200

Manual Part# 156760

INTRODUCTION

Congratulations on your purchase of a MK-370 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-370 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-370 Saw safely and correctly. Please take the time to familiarize

yourself with the MK-370 Saw by reading and reviewing this manual.

Read and follow all safety, operating and maintenance instructions.

If you should have questions concerning your MK-370 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.

TABLE OF CONTENTS

SAFETY

Safety Messages 4

Damage Prevention Message 4

General Safety Precautions 4

Rules for Safe Operation 4

California Proposition 65 Message 6

Hazard Symbols 7

Maintenance Safety 8

Electrical Requirements 8-10

Safety Label Locations 11

Product Specications 12

UNPACKING, TRANSPORT and ASSEMBLY

Unpacking 13

Contents 13

Transport 13

STARTUP, ADJUSTMENT, OPERATION and SHUTDOWN

Cutting Head Installation 14

Diamond Blade Installation 14-15

Adjustable Cutting Guide Installation 16

Splash Guard Installation 16

Pre-Start Inspection 16

Water Pump Preparation 17

Setup for Operation 18

Adjustment & Operation 19

Cleanup 20

Lockout 21

MAINTENANCE AND TROUBLESHOOTING

Maintenance 21

Blade Dressing 22

Motor Brush Change-Out 23

Troubleshooting 24-26

EXPLODED VIEW AND PARTS LIST

Exploded View & Parts List 28-32

THEORY

Theory Of Diamond Blades 33

ACCESSORIES ORDERING and RETURN INSTRUCTIONS

Accessories 34

Ordering Information 35

Return Material Policy 35

Packaging Instructions 35

Authorized Service Centers 35

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 lighted.

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-370 SAW SAFETY

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. TABLE 1, 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 workshops 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-370 SAW SAFETY

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

Some dust created by power sanding, sawing, grinding, drilling, and other construction activities

contain 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 and

• Arsenic and chromium, from chemically treated lumber

For further information, consult the following sources:

http://www.osha.gov/SLTC/silicacrystalline/index.html

http://www.oehha.org/prop65/out_of_date/6022kLstA.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 filter out microscopic particles.

MK-370 SAW SAFETY

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). 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

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 engine or equipment can result if

operated at speeds above maximum.

((

)

DO NOT expose to rain or use in damp locations.

WARNING

ROTATING PARTS

ELECTRICAL SHOCK

OVER SPEED

DO NOT EXPOSE TO RAIN

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.

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Circuit and Adapter Information

MK-370 SAW SAFETY

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-370 SAW SAFETY

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

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

115v 14 12 Not Recommended Not Recommended

230v N/A 14 12 N/A

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