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MK CX-3
GAS POWERED CONCRETE SAW
OWNER’S MANUAL &
OPERATING INSTRUCTIONS
CAUTION:
Read all safety and operating instructions before using this equipment
Enter the Serial Number of your new saw in the space below. The Serial Number is located on the
Rear Crossbar
SERIAL NUMBER:
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.
INTRODUCTION and TABLE OF CONTENTS
INTRODUCTION:
We at MK Diamond want to congratulate you on selecting the MK CX-3 Concrete Saw. We are certain that you will be pleased with your purchase. MK Diamond takes pride in producing the finest products in the industry.
Operated correctly, your MK CX-3 should provide you with years of quality service. In order to help you, we have included this manual. This owner’s manual contains information necessary to operate and maintain your MK CX-3 safely and correctly. Please take a few minutes to familiarize yourself with the MK CX-3 by reading and reviewing this manual.
If you should have questions concerning your MK CX-3, please feel free to call our friendly customer service department at: 800 421-5830
TABLE OF CONTENTS
SAFETY:
Safety Messages
Damage Prevention Message
General Safety Precautions and Hazard Symbols
California Proposition 65 Message
Safety Label Locations
Brick Saw Specific Warnings
Product Specifications
UNPACKING AND ASSEMBLY
Unpacking
Contents
Transport
Assembly
SETUP, STARTUP, ADJUSTMENT AND OPERATION
Setup
Start Up
Adjustment and Operation
Cleanup
MAINTENANCE AND TROUBLESHOOTING
Maintenance
EXPLODED VIEW AND PARTS LIST
Exploded View
Parts List
THEORY
Theory of Diamond Blades
ACCESSORIES, ORDERING and RETURN INSTRUCTIONS
Accessories
Ordering Information
Return Material Policy
Packaging Instructions
Authorized Service Centers
Manual Part No. 159348
Page
43
44
44
44
44
Revision 07/15
6
7
7
3
5
3
3
8
8
9
10
15
16
17
20
21
37
38
42
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 2
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 MESSAGES:
Safety messages inform the user about potential hazards that could lead to injury, death and/or equipment damage. Each safety message will be preceded by one of the following (3) three words that identify the severity of the message.
Not following instructions WILL lead to DEATH or SERIOUS INJURY
Not following instructions COULD lead to DEATH or SERIOUS INJURY
Not following instructions CAN lead to injury
DAMAGE PREVENTION AND INFORMATION 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. The word note, as in the example below will precede each message.
NOTE: Equipment and/or property damage may result if these instructions are not followed.
GENERAL SAFETY PRECAUTIONS AND HAZARD SYMBOLS:
In order to prevent injury, the following safety precautions and symbols should be followed at all times!
Safety Precautions:
KEEP GUARDS IN PLACE.
In order to prevent injury, keep guards in place and in working order at all times.
EXPLOSIVE FUEL!
Gasoline is extremely flammable, its vapors can explode if ignited; store only in approved containers, in well-ventilated, unoccupied buildings and away from sparks or flames. Do not fill the fuel tank while the engine is running or hot. Spilled fuel could ignite if it contacts hot parts or sparks from ignition. Do not start the engine near spilled fuel. Never use gasoline as a cleaning agent.
LETHAL EXHAUST GASES!
Engine exhaust gasses contain poisonous carbon monoxide, an odorless colorless gas that can cause death if inhaled. Avoid inhaling exhaust fumes, and never run the engine in a closed building or confined area.
ELECTRICAL SHOCK!
Never touch electrical wires or components while the motor is running. Exposed, frayed or worn electrical motor wiring can be sources of electrical shock that could cause severe injury or burns.
ENGINE OVER-SPEED.
)
) Never tamper with the governor components or settings to increase the maximum speed of the
( ( machine. Severe personal injury and/or equipment damage could result if the equipment is operated speeds above design maximum.
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 3
SAFETY
ACCIDENTAL STARTS! on
Before starting the engine, be sure the ON/OFF switch is in the "OFF" position to prevent accidental starting. Place the ON/OFF switch in the OFF position before performing any service operation.
ROTATING OR MOVING PARTS!
Keep hands, feet, hair, and clothing away from all moving parts to prevent injury. Never operate a power tool with shrouds or guards removed.
HOT PARTS!
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.
ALWAYS USE SAFETY GLASSES!
Safety glasses should always be worn when working around power tools. Everyday eyeglasses only have impact resistant lenses and may not prevent eye injury; they are NOT safety glasses.
ALWAYS USE RESPIRATORY PROTECTON!
Exhaust gases may be harmful if inhaled. Do not operate gas-powered equipment in enclosed spaces. Respiratory protection should be worn when operating gas-powered equipment.
ALWAYS USE HEARING PROTECTION!
To reduce the possibility of hearing loss, always use hearing protection when operating equipment.
REMOVE ADJUSTING KEYS AND WRENCHES.
Form a habit of checking to see that keys and adjusting wrenches are removed from the power tool before it is turned on.
KEEP WORK AREA CLEAN.
Cluttered work areas and benches invite accidents.
DO NOT USE IN DANGEROUS ENVIRONMENTS.
Do not operate equipment in dangerous environments. Always keep the work area well lighted.
KEEP CHILDREN AWAY.
All visitors and children should be kept a safe distance from work area.
MAKE WORKSHOP KID PROOF.
Make the workshops kid proof by using padlocks, master switches or by removing starter keys.
DO NOT FORCE THE TOOL.
A power tool will do a job better and safer operating at the rate for which it was designed.
USE THE RIGHT TOOL.
Do not force a tool or an attachment, to do a job that it was not designed to do.
WEAR PROPER APPAREL.
Do not wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry that may be caught in moving parts. Nonslip footwear is recommended. Wear protective hair covering to contain long hair.
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.
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 4
SAFETY
DO NOT OVERREACH.
Keep proper footing and balance at all times by not overreaching.
MAINTAIN TOOLS WITH CARE.
Keep tools sharp and clean for the best and safest performance. Always follow maintenance instructions for lubricating and when changing accessories.
SHUTDOWN TOOL.
The saw should always be shutdown before servicing or when changing accessories such as blades, bits, cutters, and the like.
USE RECOMMENDED ACCESSORIES.
Consult the owner's manual for recommended accessories. Using improper accessories may increase the risk of personal or by-stander injury.
NEVER STAND ON THE TOOL.
Serious injury could occur if a power tool is tipped, or if a cutting tool is unintentionally contacted.
NEVER LEAVE TOOL RUNNING UNATTENDED – 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.
CHECK FOR DAMAGED PARTS.
Before using a power tool, check for damaged parts. A guard or any other part that is damaged should be carefully checked to determine it would operate properly and perform its intended function. Always check moving parts for proper alignment or binding. Check for broken parts, 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.
DIRECTION OF FEED.
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.
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.
CALIFORNIA PROPOSITION 65 MESSAGE:
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
•
Arsenic and chromium, from chemically treated lumber
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.
For further information, consult the following sources: http://www.osha-slc.gov/sltc/silicarystalline/index.html http://www.oehha.org/prop65/out_of_date/6022kLstA.html
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 5
SAFETY
SAFETY LABEL LOCATIONS:
Safety labels are located according to Figures 1 to 7 below. The labels contain important safety information.
Please read the information contained on each safety label. These labels are considered a permanent part of your saw. Please, contact MK Diamond or your dealer for a replacement, if a label comes off or becomes hard to read.
Item Location
1 Console Assembly
2 Horizontal Frame Support
Description
Operating and Safety Instructions
Serial Tag
159208
159251
3 Outer Blade Guard
4A Inner Blade Guard
4B Shaft Cover
5 Fuel Tank – Right Side
6A Fuel Tank – Top
6B Fuel Tank – Top
6C Fuel Tank – Top
6D Fuel Tank – Front
7A Belt Guard
7B Belt Guard
7C Belt Guard
7D Belt Guard
Warning – Blade Failure
Caution – Do Not Lift Blade Guard
Caution – Do not Operate with Guards Removed
Warning – When Refueling Stop Engine
Danger – California Warning
Warning – Engine Mfg. Label
Caution – Hot Surface
Danger – Lethal Exhaust
Caution – Do Not Operate with Guards Removed
Caution – Accidental Start Hazard
Caution – Over tensioning Belt Hazard
Caution – Keep Hands and Feet Clear
155588
155586
155587
155580
155581
N/A
155578
155582
155587
155579
155583
155585
A
A
1
4
B
B
7
C
D
5
2
A
B
6
C
3
D
6
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 6
SAFETY
CX-3 SPECIFIC WARNINGS:
Read Owners Manual
Wear Protective Gear for –
Lungs Ear Eye
PRODUCT SPECIFICATIONS:
The MK CX-3 is a versatile Concrete Saw. Operated and used according to this manual, the MK CX-3 will provide years of dependable service.
General Description:
The MK CX – 3 is engineered as a portable concrete saw powered by a 6 horsepower, Robin gas engine or a
6.5 horsepower Honda gas engine. The saw is capable of cutting up to five (5) inches in depth.
Motor and Weight Specifications:
Motor and Weight specifications for the MK CX-3 are listed in Table 2 below.
Motor Type
Max Power Output
Max RPM
Blade Speed
4-stroke, Overhead valve, single cylinder
6 / 6.5 Hp
3600 RPM
3400 to 3600 RPM (Depending on Blade Diameter)
Fuel Tank Capacity
Engine Oil Capacity
2.7 Liters
0.6 Liters
Weight Approximately 185 lbs.
Table 2
Blade:
The MK CX-3 uses a 12 to 14 inch diameter diamond blade.
Concrete Saw Usage:
The MK CX-3 is designed to cut various grades of concrete surfaces.
Features:
•
Conveniently placed engine controls for ease of usage
•
Height adjusting screw designed to accurately adjust the depth of the cut
•
Ergonomically designed handlebar to reduce operator fatigue
•
Poly micro V-belt to ensure maximum power transfer from the engine to the blade.
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 7
UNPACKING, TRANSPORT and ASSEMBLY
UNPACKING:
Tri-Knob
Washer
Ball Knob &
Shoulder Bolt
Your MK CX-3 has been shipped from the factory thoroughly inspected. Only minimal assembly is required.
If not already done, remove the MK CX-3 from the pallet and place it on a flat surface (lift the Concrete Saw using the lifting points shown below.
CONTENTS:
In the containers, you will find one (1) MK CX-3, one (1) Diamond Blade, two (2) Blade Shaft Wrenches, one
(1) Handlebar, two (2) Handlebar Tri-knobs, two (2) Tri-Knob Washers, one (1) Ball Knob, one (1) Shoulder
Bolt, one (1) Pointer Arm, one (1) Pointer Wheel, one (1) Pointer, one (1) CX-3 Owners Manual, one (1)
Robin’s or Honda’s Engine Owners Manual and one (1) warranty card.
MK CX-3 Diamond
Blade
2 Blade Shaft
Wrench
Handlebar Handlebar
Tri-Knob
Pointer Arm Pointer Wheel Pointer
CX-3
Owners Manual
Robin or Honda
Owner’s Manual
Warranty
Card
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 8
UNPACKING, TRANSPORT and ASSEMBLY
TRANSPORT:
1. The MK CX-3 weighs approximately one hundred and eighty-five (185) pounds), use care when transporting.
2. Two people are required to lift and transport the MK CX-3.
To lift the CX-3, one person will lift by grasping the Handlebar (either extended or folded) and one person will lift by grasping the Lifting Rung on the front of the CX-3 as identified below.
Lifting Rung
Lift Point
Lift Points
Handlebar
Lift Point
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 9
UNPACKING, TRANSPORT and ASSEMBLY
ASSEMBLY:
Follow the assembly instructions to prepare your MK CX-3 for operation.
1. Handlebar Assembly:
Console
Frame
Threaded
Hole
Handlebar
Console
Frame
Threaded
Hole
(A)
Locate the threaded holes on both sides of the CX-3 console frame
Threaded
Hole
Tri-Knob
(D)
Install one Tri-Knob through the
Handlebar and into the threaded hole on the CX-3 console frame
(B)
Align the Handlebar with the threaded holes on the sides of the
CX-3 console frame
Second
Tri-Knob
Opposite
Side
(E)
Repeat Step “C” on the opposite side of the CX-3
Washer
Tri-Knob
(C)
Install one Tri-Knob Washer onto each Tri-Knob
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 10
UNPACKING, TRANSPORT and ASSEMBLY
2. Cutting Pointer Arm Installation:
Stop Clip, Screw,
Flat Washer and
Nut
Thumbscrew
Pointer Arm
(A)
Install the Pointer Arm using the
Stop Clip, a 3/4-inch screw, flat washer and a Nylock Nut
(D)
Tighten the Retaining Clip
Thumbscrew
Retaining
Clip
Tighten
(B)
Tighten the Nylock Nut and 3/4-
Rotate inch screw
(E)
Rotate the Pointer Arm into the upright position
Pointer
(C)
Install the Pointer Wheel, the
Pointer and the Pointer Retaining
Clip
Rotate
Retaining
Clip
Pointer
Wheel
Pointer
(F)
Rotate the Pointer down
3. Diamond Blade Installation:
NOTE: When installing the diamond blade retaining-bolt, ensure the threads of the bolt are aligned with the threads of the drive shaft so as not to “cross-thread" the bolt.
Direction to Open
(A)
Cover
Open the Blade Guard Cover
Inner and Outer
Flanges
(B)
Retaining
Screw
Locate the Blade Retaining Screw, the Outer and the Inner Flange
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 11
UNPACKING, TRANSPORT and ASSEMBLY
Shaft
(D)
Shaft
Wrench
Place the Blade Shaft Wrench onto the flat section of the Blade
Shaft
Outer
Flange
(G)
Remove the Outer Flange
(J)
Outer
Flange
Install the Outer Flange
Retaining Nut
Wrench
Loosen the Blade Retaining Screw while holding the Shaft Wrench steady
Diamond
Blade
(E)
Shaft
Wrench
(H)
Install the Diamond Blade onto the
Outer
Flange
Blade Shaft
Flush Against
Blade
(K)
Blade
Verify the Outer Flange is seated against the Blade
MK CX-3 Revision 09/04, Effective Date September 17, 2004
Retaining Nut
Removed
(F)
Remove the Blade
Retaining Screw
Rotational
Arrow
(I)
Verify the direction of rotation arrow of the Blade matches the direction of rotation on the CX-3
Retaining
Screw
(L)
Install the Blade Retaining Screw
Page 12
UNPACKING, TRANSPORT and ASSEMBLY
4. Filling Oil Reservoir:
NOTE: SAE 10W-30 is recommended for general use in temperatures of – 4ºF (20ºC) and above. If you are operating outside of this range, consult the chart in this manual.
Engine Oil Capacity is 0.63 US qt (0.6l).
Read
(A)
Read and remove caution tag attached to the Gas Cap
Fill through Reservoir oil level hole
(D)
Fill the Oil Reservoir
(CAUTION: Do not overfill)
Oil Drain
Line
Oil Drain
Cap
(B)
Verify the Oil Drain Cap is installed onto the Oil Drain Line and is tight
Turn clockwise to tighten
Dipstick
(E)
Install the Oil Reservoir
“Dipstick”
Turn counterclockwise to tighten
(C)
Remove the Oil Reservoir
“Dipstick”
Wipe up excess oil
Dipstick
(F)
Cleanup any excess oil
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 13
UNPACKING, TRANSPORT and ASSEMBLY
5. 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.
NOTES: 1. Fuel can damage paint and plastic. Be careful not to spill fuel when filling the fuel tank.
Damage caused by spilled fuel IS NOT covered under the warranty.
2. DO NOT use stale or contaminated gasoline, or an oil/gasoline mixture.
3. Use unleaded gasoline with a pump octane rating of 86 or higher.
Fuel Cap
Remove the Fuel Cap
Turn clockwise to tighten
(A)
(D)
Turn counter- clockwise to loosen
Fuel Cap
Install the Fuel Cap
Fill Throat
(B)
Fill Fuel Tank
Upper Limit
(C)
Fill Throat
Verify fuel level is below the throat of the Fuel Tank
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 14
SETUP, STARTUP, ADJUSTMENT, OPERATION and SHUTDOWN
SETUP:
1. Pre-start Inspection:
The pre-start inspection should be performed before beginning any job.
If Diamond Blade is worn, replace the blade before starting work.
(A)
Inspect Blade for damage – Verify
Blade correct for material being
Verify the Height Adjusting
Wheel moves freely and the CX-3 moves up and down smoothly
Upper Limit cut
(D)
(G)
Verify ease of movement
Fill Throat
Check for proper fuel level
(See Maintenance section if low)
Look for leaks
(B)
Inspect Engine for leaks
Verify the CX-3 rolls freely
Air Filter
(E)
(H)
Verify ease of movement
Check Air Filter for cleanliness
(See Maintenance section if dirty)
(C)
Inspect the MK CX-3 for general damage and/or loose hardware
Proper Oil Level
Low Level
(F)
Check for proper oil level
(See Maintenance section if low)
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 15
SETUP, STARTUP, ADJUSTMENT, OPERATION and SHUTDOWN
STARTUP:
2. Engine Start:
1. Carbon monoxide gas is toxic breathing it can cause unconsciousness and/or death.
2. Avoid any areas or actions that expose you to carbon monoxide.
NOTE: If restarting a warm engine the Choke Lever may be left in the Half Open or in the OPEN position.
Raise
Blade
(A)
Use the Depth Control Wheel to
Direction of
Movement
Direction of
Movement
1/3
(D) rd
Throttle Lever
open
(G)
Rotate clockwise to raise raise the Blade clear of the floor
Move the Throttle Lever to
Starter Cord
Pull Starter Cord straight back in a smooth fast motion
Direction of
Movement
Place Fuel Valve in the ON
Engine Switch
Direction of
Movement
(B) position
(E)
ON position
Fuel Valve
Direction of
Movement
Place Engine Switch in the
(H)
Choke
Place Choke Lever in the OPEN position when engine is warm
Choke Lever
Direction of
Movement
(C)
Direction of
Movement
Place Choke Lever in the CLOSED position
(F)
Starter Cord
Pull Starter Cord slowly, until slack is removed and resistance is felt
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 16
SETUP, STARTUP, ADJUSTMENT, OPERATION and SHUTDOWN
OPERATION:
3. Standard Operation:
The following is a brief overview of operating the CX-3.
Blade
Raised
Blade
A
Cut Line
(A)
(D)
(F) equal
Rotate clockwise to raise
Verify the Blade is clear of the operating surface
Align with
Straightedge
Pointer
Using a Straightedge, align the
Pointer to the Blade
Direction of Push
B
Push the saw diagonally across the marked cut line and stop when the distance from the rear of the saw to the line (distance A) and the distance from the pointer to the line
(distance B) are approximately
Cooling
Inlet
Cooling
Supply
(B)
(D)
Tighten the Retaining Clip
Thumbscrew
(G) the Blade from contacting the concrete
Connect
Attach the cooling supply hose to the Cooling Inlet of the CX-3
Thumbscrew
Lift and
Move
Pointer
Movement
Retaining
Clip
Lift the rear wheels slightly off the ground and swing the rear of the saw around until the pointer and
Blade are over the line; do not tilt the saw too far forward to keep
Lower
Pointer
(C)
Lower the Pointer Assembly
Mark
Line
(E)
Layout and mark the area to be cut using a Chock-line or etc.
Start
CX-3
(H)
Start the CX-3 using the Engine
Start procedure on Page 16
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 17
SETUP, STARTUP, ADJUSTMENT, OPERATION and SHUTDOWN
Direction of
Movement
Direction of
Movement
Rotate clockwise to raise
Blade
Raised
Throttle Lever
(I)
With the engine running adjust the throttle approximately half way
Throttle Lever
(L)
Adjust the throttle as needed to make the cut
(O)
When the Cut is Complete, Raise the Blade
Direction to Open
Blade
Lowered
Cooling
Supply Valve
(J)
Open Cooling Supply Valve
(M)
Slowly lower the Blade until the desired level is reached and begin the cut
Direction to Open
Rotate Counterclockwise to Lower
Cooling
Supply Valve
(P)
Close Cooling Supply Valve
Verify
Flow
(K)
Verify proper cooling flow and adjust the water flow on the blade to a desired amount
Direction of Cut
Perform
Cut
(N)
Perform the cut using only enough pressure to follow the original marked line. Do not attempt to steer the saw
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 18
SETUP, STARTUP, ADJUSTMENT, OPERATION and SHUTDOWN
SHUTDOWN:
4. Normal Engine Shutdown:
Rotate clockwise to raise
Blade
Raised
(A)
Raise or Verify the Blade is
Direction of
Movement raised
(D)
Fuel Valve
Place Fuel Valve in the OFF position
Throttle Lever
(B)
Move the Throttle Lever to the minimum “Slow” position to lower the Blade speed
Raise
Pointer
Direction of
Movement
(E)
Raise the Pointer Assembly
5. Emergency Engine Shutdown:
Engine Switch
Direction of
Movement
(A)
Place Engine Master Switch in the
OFF position
Throttle Lever
Direction of
Movement
(B)
Move the Throttle Lever to lower blade speed
Engine Switch
Lower
Pointer
Direction of
Movement
(C)
Place Engine Master Switch in the
OFF position
(F)
Rotate the Pointer downward
Direction of
Movement
Fuel Valve
(C)
Place Fuel Valve in the OFF position
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 19
SETUP, STARTUP, ADJUSTMENT, OPERATION and SHUTDOWN
Rotate clockwise to raise
Blade
Raised
(D)
Raise the Blade
Raise
Pointer
(E)
Raise the Pointer Assembly
Lower
Pointer
(F)
Rotate the Pointer downward
6. Cleanup:
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 Concrete Saw 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.
Soap and
Water
(A)
Clean the CX-3 with soap and
Depth Control
Screw water
(D)
Clean the Depth Control Screw
Engine Off
(B)
Verify the engine is off and cool before beginning to clean
(E) surface of the CX-3 (except the engine)
Clean Exterior
Surfaces
Clean the remainder of the exterior
(C)
Clean around the Depth Control
(F)
Depth Control
Wheel Bearing
Wheel bearing
Throttle Linkage
Clean engine throttle linkage with a dry cloth
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 20
MAINTENANCE AND TROUBLESHOOTING
MAINTENANCE:
1. New Maintenance:
Perform the following after initial purchase and operation of the saw.
1 st
(A)
Change engine oil after 1
20 operating hours (See Engine
Oil Change)
Change Oil st
month or
Inspect
V-belt
(B)
Check and adjust tension on all Vbelts following 1 st
48 hours of operation (See V-belt Inspection)
2. Maintenance Following Use:
The following maintenance should be performed following each use. Use Light oil, such as WD-40 or 3 in 1 when lubricating parts.
NOTE: Due to the material used in the Blade and Shaft, it is critical that Steps C and D be performed.
Engine Off
Pivot
Point
(A)
Shutdown the Engine
(See Normal Engine Shutdown)
(D)
Pointer
Assembly
Lubricate the pivot point of the
Pointer Assembly
Air Filter
(B)
Check Air Filter for cleanliness
(See Maintenance section if dirty)
(E)
Pointer
Wheel
Lubricate the Pointer Wheel
Assembly
(C)
Lubricate the Grease fitting
(F)
Grease
Fitting
Cooling
Supply Valve
Lubricate the Cooling Supply Valve
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 21
MAINTENANCE AND TROUBLESHOOTING
Throttle
Linkage
(G)
Lubricate the engine Throttle
Linkage
Wheel
Assemblies
(H)
Lubricate the Wheel Assemblies
Tighten all bolts and screws
(I)
Verify the tightness of all bolts and screws found on the CX-3
3. Weekly (50 Hours) and Monthly (200 Hours) Maintenance:
The following should be performed monthly. Items should be lubricated using waterproof grease.
(A)
Change engine oil
(Every 100 Hours; See Engine Oil
Change)
(D)
Lubricate the Blade Shaft Bearings
(Monthly)
Change Oil
Shaft
Bearings
Height Adjusting
Wheel Bearing
Air Filter
(B)
Lubricate the Height Adjusting
Wheel Bearing (Monthly)
(E)
Clean engine Air Filter Weekly and
Replace Monthly
(See Engine Air Filter Inspection
Cleaning and Replacement)
Depth Control
Screw
(C)
Lubricate the Depth Control
Screw (Monthly)
Fuel Sediment Cup
(F)
Clean Fuel Sediment Cup Monthly
(See Fuel Sediment Cup Cleaning)
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 22
MAINTENANCE AND TROUBLESHOOTING
Replace
Replacement)
(M)
Replace the Diamond Blade (See
Blade Removal /Installation section)
Spark Plug
(G)
Clean Spark Plug Weekly and
Readjust Spark Plug Monthly (See
Spark Plug Adjustment and
Lubricate
Shaft
(J)
Lubricate the Blade Shaft
Remove
(H)
Remove the Diamond Blade
(See Blade Removal /Installation
Clean
Screw section)
(K)
Clean the Blade Retaining Screw
(I)
Clean the Blade Shaft
Lubricate
Screw
Clean
Shaft
(L)
Lubricate the Blade Retaining
Screw
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 23
MAINTENANCE AND TROUBLESHOOTING
4. 500 Hour and 1000 Hour Maintenance:
Perform the following maintenance every 500 hours.
(A)
Spark Plug
Replace Spark Plug (See Spark
Plug Adjustment and
Replacement)
(B)
Have Authorized Repair Shop perform remainder of 500-hour maintenance (See Robin Owners
Manual)
5. Yearly and Two-Year Maintenance:
Perform the following maintenance every year.
(C)
Inspect belts
(B)
Have Authorized Repair Shop perform remainder of 1000-hour maintenance (See Robin Owners
Manual)
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 24
MAINTENANCE AND TROUBLESHOOTING
6. Check Fuel Level:
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.
NOTES: 1. Fuel can damage paint and plastic. Be careful not to spill fuel when filling the fuel tank.
Damage caused by spilled fuel IS NOT covered under the warranty.
2. DO NOT use stale or contaminated gasoline or an oil/gasoline mixture.
3. Use unleaded gasoline with a pump octane rating of 86 or higher.
Fuel Cap
(A)
Turn counter- clockwise to loosen
Remove Fuel Cap
Turn clockwise to tighten
(D)
Install Fuel Cap
Fuel Cap
Fill Throat
(B)
Fill Fuel Tank
Upper Limit
(C)
Fill Throat
Verify fuel level is below the throat of the Fuel Tank
7. Checking Oil Level:
NOTES: 1. Engine Oil Capacity is 1.16 US qt (1.1 l).
2. When installing the Oil Dipstick, ensure the threads are aligned with the threads of the Oil
Reservoir so as not to “cross-thread."
Level Engine
(A)
Verify the Engine is upright and level
Turn counter- clockwise to loosen
(B)
Remove Dipstick
Dipstick 1/2-way up Dipstick
Bottom of Dipstick
(C)
Check Oil Level if the level is normal, go to step F, if low, go to Step D
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 25
MAINTENANCE AND TROUBLESHOOTING
Fill through Reservoir oil level hole
(D)
Fill Oil Reservoir
Wipe up excess oil
(G)
Clean up excess oil
Bottom Edge
(E)
Add Oil until level reaches The bottom edge of fill hole
MK CX-3 Revision 09/04, Effective Date September 17, 2004
Turn clockwise to tighten
(F)
Install Dipstick
Dipstick
Page 26
MAINTENANCE AND TROUBLESHOOTING
8. Changing Oil:
Oil is a major factor affecting performance and service life. Use 4-stroke automotive detergent oil.
SAE 10W-30 is recommended for general use. Other viscosity oil shown in the chart below may be used when the average temperature in your area is within the recommended range.
-20ºF 0ºF
-30ºC
5W-30
20ºF
-20ºC -10ºC
10W-30
0ºC
40ºF
10ºC
60ºF 80ºF
20ºC
30
100ºF
30ºC 40ºC
NOTES: 1. Drain used oil while the engine is warm.
2. Conform to Federal, State and Local laws, codes and ordinances relative to environmental protection for oil disposal.
Remove
(A)
Remove the Diamond Blade
(See Blade Removal /Installation section)
(D)
Oil Drain Line
Catch
Basin
Place a catch basin below the
Lower
CX-3
Lower the CX-3 to its lowest
Wrench
(B) position
(E)
Wrench
Remove the Drain Cap using two 1/2 –inch or adjustable wrenches
Oil Drain Line
Free the Oil Drain Line
Drain Completely
(C)
(F)
Drain Oil the engine oil (conform to
Federal, State and Local laws for disposal)
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 27
MAINTENANCE AND TROUBLESHOOTING
Wrench
(G)
Using two 1/2 – inch or adjustable wrenches, install the Drain Cap onto the Oil Drain Line (Ensure the Cap is tight)
Wrench
Fill through Reservoir oil level hole
(H)
Fill the Oil Reservoir (See
Checking Oil Level for filling instructions)
9. Engine Air Filter Inspection Cleaning and Replacement:
Air Filter Cover
Carburetor
Intake
Filter Base
Turn counter- clockwise to loosen
(A)
Remove the Air Filter Cover
(D)
Clean the Air Filter Base DO NOT allow dirt to enter the carburetor intake
Wing Nut
(B)
Remove the Dual Air Filter
Retaining Wing nut
Paper Filter
Turn counter- clockwise to loosen
Foam Filter
(E)
Separate the outer Foam Filter from the inner Paper Filter
MK CX-3 Revision 09/04, Effective Date September 17, 2004
Dual Air Filter
(C)
Remove the Dual Air Filter
Clean Foam Filter
(F)
Clean the Foam Filter with warm soapy water – allow to air dry
Page 28
MAINTENANCE AND TROUBLESHOOTING
Dual Air Filter
Retaining Screw
(G)
Submerge with Oil
Dip the Foam Filter in clean engine oil – Squeeze out excess oil
Cyclone Filter
Assembly
(J)
Remove the Cyclone Filter Assembly from the Air Filter Cover
(L)
Install the Dual Air Filter
(O)
Turn clockwise to tighten
Turn clockwise to tighten
Cyclone Filter
Assembly
Install the 3 Cyclone Filter
Assembly retaining screws
(H)
Inspect Paper Filter, tap on hard surface to clean or use 30psi air
(direct air inside filter to clean)
(K)
Separate the Air Guide from the
Cyclone Housing and clean using
Install the Air Guide into the
Cyclone Housing
Air Filter Cover
Paper Filter
Tap to Clean or use compressed air
Cyclone Housing soap and water
(M)
(P)
Air Guide
Air Guide
Cyclone Housing
Turn clockwise to tighten
Install the Air Filter Cover
MK CX-3 Revision 09/04, Effective Date September 17, 2004
Turn counter- clockwise to loosen
Retaining Screw
Cyclone Filter
Assembly
(I)
Remove the 3 Cyclone Filter
Assembly retaining screws
Paper Filter
Foam Filter
(K)
Install the Foam Filter over the
Paper Filter
Cyclone Filter
Assembly
(N)
Install the Cyclone Filter Assembly into the Air Filter Cover
Page 29
MAINTENANCE AND TROUBLESHOOTING
10. Diamond Blade Change-out:
Engine Off
(A)
Verify the Engine Switch is in the
OFF position
(D)
Outer
Flange
Remove the Outer Flange
Raise
Blade
(B)
Use the Depth Control Wheel to raise the Blade clear of the floor
Diamond
Blade
Rotate clockwise to raise
(E)
Remove the old Diamond Blade
Rotational
Arrow
(G)
Verify the direction of rotation arrow of the Blade matches the direction of rotation on the CX-3
MK CX-3 Revision 09/04, Effective Date September 17, 2004
Retaining
Screw
(C)
Remove the Blade Retaining Screw
Diamond
Blade
(F)
Install new Diamond Blade onto
Blade Shaft
Page 30
MAINTENANCE AND TROUBLESHOOTING
Outer
Flange
Flush Against
Blade Blade
(H)
Install the Outer Flange and verify it is seated against the Blade
(I)
Retaining
Screw
Install the Blade Retaining Screw
Retaining Nut
Wrench
Shaft
Wrench
(J)
Install the Blade Retaining Screw
Wrench and the Blade Shaft Wrench and tighten the Retaining Screw
11. Fuel Sediment Cup Cleaning:
1. Gasoline is highly flammable and explosive. You can be burned or seriously injured when handling fuel.
2. Keep gasoline away from appliance pilot lights, barbecues, electric appliances, power tools, etc.
3. Wipe up spills immediately.
NOTES: 1. Conform to Federal, State and Local laws for the proper disposal of fuel
2. Fuel can damage paint and plastic. When filling, be careful not to spill fuel. Damage caused by spilled fuel IS NOT covered under the warranty.
3. DO NOT use stale or contaminated gasoline or an oil/gasoline mixture.
5. When installing the Sediment Cup ensure the threads of the cup are aligned with the threads on the engine so as not to “cross-thread the cup.
Direction of
Movement
(A)
Fuel Valve
Place Fuel Valve in the OFF position
Clean Fuel
Sediment Cup
(D)
Clean Fuel Sediment Cup using a nonflammable solvent – allow
Sediment Cup to dry
Turn counter- clockwise to loosen
7/16” Wrench
Loosen the Fuel Sediment Cup
Turn clockwise to tighten
7/16” Wrench
(B)
(E)
Reinstall and tighten the Fuel
Sediment Cup
(C)
Fuel Sediment
Cup
Remove the Fuel Sediment Cup
(The Cup will contain fuel)
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 31
MAINTENANCE AND TROUBLESHOOTING
12. Spark Plug Adjustments and Replacement:
DO NOT work around the engine while hot.
NOTE: 1. Recommended spark plugs are: NGK – BPR6ES or DENSO – W20EPR-U
2. When installing the Spark Plug, ensure the threads of the are aligned with the threads in the engine so as not to “cross-thread" the plug.
Spark Plug
Cap
Spark Plug
Cap
(A) plug
(D)
Gap Setting 0.028
– 0.031 in (0.70 –
0.80 mm the Spark Plug
(G)
Clean
Pull back to remove
Remove Spark Plug Cap and clean around the cap and spark
Set Gap
Clean with a wire brush and re-gap
Push in to install
Install the Spark Plug Cap verify the Spark Plug Cap is seated
Wrench
Remove the Spark Plug using a
13/16-inch Spark Plug Socket
Seat by Hand
(B)
(E)
Spark Plug
Install the Spark Plug by Hand DO
NOT cross-thread the Spark Plug
No chips or cracks
(C)
Inspect Spark Plug if worn replace
Spark Plug and go to step E
(F)
Electrode not worn
Turn clockwise to tighten
Tighten the Spark Plug If new, tighten 1/2-turn, if old, tighten 1/8-
1/4 turn using a 13/16-inch Spark
Plug Socket
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 32
MAINTENANCE AND TROUBLESHOOTING
13. Handlebar Repositioning for Storage:
Turn counter- clockwise to loosen
Tri-Knob
(A)
Loosen the Tri-Knobs on both sides of the Handlebar
Pivot
Handlebar
(B)
Pivot the Handlebar in the forward direction towards the motor
14. Blade Repositioning:
Diamond
Blade
Install new Diamond Blade onto
Blade Shaft
Retaining
Screws
(A)
(D)
Locate the 3 Blade Guard Retaining
Screws
Cooling
Hose
(B)
Remove the Cooling Transfer Hose from the Blade Guard
7/16”
Wrench
Direction of
Removal
Turn counter- clockwise to loosen
(E)
Remove the Blade Guard Retaining
Screws and Remove the Blade
Guard
MK CX-3 Revision 09/04, Effective Date September 17, 2004
Turn clockwise to tighten
(C)
Tighten the Tri-Knobs on both sides of the Handlebar
Inner
Flange
Direction of
Removal
(C)
Remove the Inner Blade Flange
Retaining
Screws
Tri-Knob
(F)
Locate the Blade Shaft Cover
Retaining Screws
Page 33
MAINTENANCE AND TROUBLESHOOTING
Remove the Blade Shaft Cover
Retaining Screws and the Blade
Shaft Cover
Inner
Flange
(G)
(J)
7/16”
Wrench
Turn counter- clockwise to loosen
Direction of
Installation
Install the Inner Blade Flange
Protection
Screw
(M)
Install the Shaft Thread Protection
Screw
Shaft
Wrench
(H)
Remove the Shaft Thread
Protection Screw using the Shaft
(K)
Install the Cooling Transfer Hose
Shaft
Cover
Protection
Screw
5/8”
Wrench
Wrench and a 5/8” Wrench
Cooling
Hose
Direction of
Installation from the Blade Guard
(N)
Install the Blade Shaft Cover
MK CX-3 Revision 09/04, Effective Date September 17, 2004
Blade
Guard
(I)
Install the Blade Guard on the opposite side of the CX-3
Diamond
Blade
(L)
Install the Blade
(See Blade Removal /Installation section)
Page 34
MAINTENANCE AND TROUBLESHOOTING
14. Micro-V Belt, Adjustment and Replacement:
In order to ensure the CX-3 operates at peak efficiency, the power transmission Micro-V belt should be inspected monthly and changed if any signs of damage and/or excessive wear is observed.
NOTE: 1. When a new belt is installed, it should be inspected and re-tensioned after the first forty-eight
(48) hours of operation.
Diamond
Blade
(A)
Remove the Blade
(See Blade Removal /Installation section)
Check Tension 1/2-way between pulleys
(D)
Check V-belt for proper tension if tension is correct, go to Step R
(Proper tension is approximately
1/8-inch deflection of the belt)
Rotate counterclockwise to loosen
(G)
Loosen the Engine Mounting
Bolts using two 1/2-inch wrenches
7-16”
Wrench
Locate the 4 upper Engine
Mounting Nuts on both ends of
Tension
Arm
(B)
(H)
Turn counter- clockwise to loosen
Locate and remove the Belt Guard
Retaining Screws using a 7/16wrench and then remove the Belt
Guard
(E) the CX-3 motor
Mounting
Nuts
Loosen the Motor Tension Arm using a 1/2-inch Wrench
Inspect
V-belt
Mounting
Bolts
(C)
Inspect the V-belt for excessive wear, cracks and cuts – if worn, proceed to Step E
(F)
Locate the 4 Lower Engine
Mounting Bolts on both ends of the CX-3 motor
(I)
Direction of Push
Push the Motor forward to loosen the Micro-V belt
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 35
MAINTENANCE AND TROUBLESHOOTING
Old Micro-V belt
(J)
Remove the old Micro-V belt from the Engine and Blade Shaft Pulleys
Verify V-belt seated
(M)
Verify the Micro-V belt is seated in all grooves of the Engine and
Cutting Drum Pulleys
Repeat until
Correct
(P)
Repeat Steps N and O until Proper
Tension is achieved
Diamond
Blade
Blade Shaft
Pulley
Clean and verify the alignment of the Engine and Blade Shaft
Pulleys
Tension
Arm
(K)
Engine
Pulley
(N)
Tighten the Motor Tension Arm using a 1/2-inch Wrench
Rotate clockwise to tighten
(Q)
Tighten the Engine Mounting
Bolts using two 1/2-inch wrenches
(S)
Install the Blade
(See Blade Removal /Installation section)
MK CX-3 Revision 09/04, Effective Date September 17, 2004
New Micro-V belt
(L)
Obtain and install a new
Micro-V belt onto the Engine
Blade Shaft Pulleys
Check Tension 1/2-way between pulleys
(O)
Check Micro-V belt for proper tension, if tension is correct (Proper tension is approximately 1/8-inch deflection of the belt)
Turn clockwise to tighten
(R)
Install the Belt Guard and Belt
Guard Retaining Screws
Page 36
EXPLODED VIEW AND PARTS LIST
EXPLODED VIEW:
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 37
EXPLODED VIEW AND PARTS LIST
PARTS LIST:
Item Description
A1 Casting, Frame, Right
A2 Casting, Frame, Left
A3 Support, Horizontal Frame
A4 Connector, Tube
∅
1 3/8 x 5/16-18
A5 Screw, 5/16-18 x 1 ½ Hex Hd. Cap
A6 Washer, 5/16 SAE Flat
A7 Washer, 5/16 Split Lock
A8 Wheel, Front, 4 X 1 ½
A9 Shim, ¾ x 1 ¼ x .045
A10 Axle, Front
A11 Bushing, Flange
A12 Wheel, Rear, 8 X 2 ¼
A13 Pin, Cotter 1/8 x 1.0
A14 Collar, Set ¾
B1 Console, Frame
B2 Screw, 5/16-18 x 1 ½, Hex Head Cap
B3 Washer, 5/16 SAE Flat
B4 Washer, 5/16 Split Lock
B5 Nut, 5/16 Hex
B6 Label, Console
C1 Truck, Weldment
C2 Plate, Serial Number
C3 Label, CX3
C4 Tag, Serial Number, Blank
D Assembly, Blade Shaft
D1 Shaft, Blade,
D2 Screw, Blade Shaft, ½-13 x 1 Hex Head, Left Hand Thread, Grade 5
D3 Screw, Blade Shaft, ½-13 x 1 Hex Head, Right Hand Thread, Grade 5
D4 Flange, Inner
D5 Flange, Outer
D6 Pulley, Polly-V 2 ½ x 1 x J16
D7 Bearing, 1” Pillow Block
D8 Screw, 3/8-16 X 1 1/2 Hex Head Cap
D9 Washer, 3/8 Split Lock
D10 Washer, 3/8 SAE Flat
D11 Nut, 3/8-16 Hex
E Assembly, Shaft Cover
E1 Casting, Cover, Shaft
E2 Screw, 5/16-18 X 1 Hex Head Cap
E3 Washer, 5/16 Split Lock
E4 Washer, 5/16 SAE Flat
Qty MK
1
1 n/a
159257
1
3
159259
158857
6 159206
1
1
1
1
1
1
1
1
4
1
4
4
4
1
1
6
6
6
2
6
4
4
1
2
2
1
1
1
1
3
3
3
4
4
8
1
1
2
4
152467
151754
151747
101196
159208 n/a
159260
157918
159482
157500 n/a
158879
159203
159204
158880
152467
151754
151747
150830
153699
158862
159207
155986
156613
153814 n/a
158828
158881
158470
155072
153528
150925
101360
101188 n/a
158843
151743
151747
151754
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 38
EXPLODED VIEW AND PARTS LIST
F Assembly, Blade Guard
F1 Guard, DC Rear Blade
F2 Fitting, Brass, 1/8 MNPT X 3/8 BARB
F3 Screw, 3/8 X 2 ½ Socket Head Shoulder, w/ 5/16-18 Thread
F4 Washer, 3/8 SAE Flat
F5 Guard, DC Front Blade
F6 Screw, 5/16-18 x ¾ Hex Head Cap
F7 Washer, 5/16 Split Lock
F8 Label, Caution, Lift Guard, 1.5 X 3.0
F9 Label, Warning, Blade Failure, 1.5 X 3.0
F10 Nut, 5/16-18 Nylock Hex
G Assembly, Belt Guard
G1 Casting, Guard, Belt
G2 Guard, Inner Belt
G3 Screw, 5/16-24 UNF X ½ Hex Head Cap
G4 Washer, 5/16 Split Lock
G5 Belt, Polly-V, 240J16
G6 Nut, ¼-20 Acorn, High Crown
G7 Washer, ¼ Split Lock
G8 Screw, ¼-20 x ½ Hex Head Cap
G9 Washer, ¼ SAE Flat
G10 Washer, ¼ Split Lock
G11 Label, Caution, Guards in Place, 1.5 x 3.0
H Assembly, Honda 6.5 H.P. Engine
H1 Honda GX200QXC9 6.5 hp w/ Cyclone Filter
H2 Plate, Engine Bolt
H3 Deflector, 8 hp
H4 Screw, 6-32 x ½ Pan Head Phillips Self-Tapping Cap
H5 Pin, Throttle Control
H6 Screw, 8-32 x 3/8 Pan Head Cap
H7 Pin, Cotter, 1/16 x ¾
H8 Oil Drain, Sub-assembly
H9 Pulley, Polly-V, J16 x 2 ½ x 1.0 I.D.
H10 Screw, 5/16-18 x 2 Hex Head Cap
H11 Washer, 3/8 SAE Flat
H12 Washer, 3/8 Split Lock
H13 Nut, 3/8-16 Hex
H14 Arm, Tension
H15 Nut, 5/16-18
H16 Label, Caution, Hot Surface 1.5 x 3.0
H17 Label, Warning, Refueling, 1.5 x 3.0
H18 Label, Danger, California, 1.5 x 3.0
H19 Label, Danger, Lethal Exhaust, 1.5 x 3.0
H20 Plug, Plastic, ¾ Round
H21 Plate, Engine Bolt, Front
H22 Label, Home Depot Tool Rental
H23 Label, Caution Belt Tension, 1.5 x 3.0
H24 Label, Caution, Sparkplug, 1.5 x 3.0
H25 Label, Caution, Hands and Feet, 2 X 4
MK CX-3 Revision 09/04, Effective Date September 17, 2004
3
1
1
2
1
3
1
1
1
1
1 n/a
159262DC
152501
160492
150923
158951DC
151369
151747
155586
155588
151746
2
2
1
3
3
3
3
1
1 n/a
1 159021
1 159250
159205
151747
158824
159464
152591
152608
151915
152591
1
1
1
1
1
1
2
1
7
4
4
1
1
1
1
1
1
1
1
3
1
1
4
1 155587
n/a
1
1
159347
157847
155375
153466
151284
156614
152518
157577-01
158959
155494
150923
150925
101188
157848
101196
155578
155580
155581
155582
156615
159868
160602
155583
155579
155585
Page 39
EXPLODED VIEW AND PARTS LIST
J1 Wheel, Depth Control
J2 Screw, 3/8-16 X 1/2 Socket Head Set
J3 Knob, Ball, 2”, 3/8-16 Insert
J5 Screw, 1/2 X 3/4 Socket Head Shoulder, w/ 3/8-16 X 5/8 Thread
J6 Tube, Depth Control ¾-10
J7 Nut, 3/8-16 Nylock Hex
J8 Screw, 3/8-16 X 2 Hex Head Cap
J9 Bearing, Flange, FHSLF 204-12G
J10 Screw, 3/8-16 X 1 ½ Hex Head Cap
J11 Washer, 3/8 SAE Flat
J12 Nut, 3/8-16 Nylock Hex
J13 Screw, Depth Control
J14 Nut, 3/4-10 Hex
J15 Spring, Detent
K1 Handlebar
K2 Grip, Handle
K3 Tri-Knob, 3/8-16 X 2
K4 Washer, 3/8 SAE Flat
L1 Arm, Pointer
L2 Pointer
L3 Wheel, Pointer, w/ 3/8 X 1/2 X 1 5/8 nylon bushing
L4 Screw, 1/4-20 X 3/4 Thumb
L5 Nut, 3/8-16 Nylock Hex
L6 Washer, 3/8 SAE Flat
L7 Clip, Stop
M1 Bracket, Water Valve
M1A Bracket, Water Valve
M2 Screw, ¼-20 x ½ Hex Head Cap
M3 Washer, ¼ Split Lock
M4 Fitting, Brass, 1/2 MNPT X Garden Hose Swivel
M5 Valve, Ball, Shut-Off, 1/2 FNPT X 1/2 FNPT
M6 Nut, 1/2 NPT
M7 Fitting, Brass, 1/2 MNPT X 3/8 BARB
M8 Clamp, 5/8 Hose
M9 Hose, 3/8 ID Vinyl
N Assembly, Throttle, Honda
N1 Screw, 10-24 X 1/2 Pan Head Phillips Cap
N2 Washer, #10 SAE Flat
N3 Nut, 10-24 Clip
N4 Assembly, Throttle Control
N5 Cable, Throttle, CX3 Honda
NA Assembly, Throttle, Robin
NA1 Screw, 10-24 X 1/2 Pan Head Phillips Cap
NA2 Washer, #10 SAE Flat
MK CX-3 Revision 09/04, Effective Date September 17, 2004
1
1
2
1
1
1
2
2
1 N/a
1 155156
1
1
153710
158519
156177
159098
152505
153485
155151
153528
151915
152505
1
2
1
155062
155063
156609
1 n/a
1 158849
2
2
4
229413
156770-04
150923
1 155568
1
1
1
2
3
155056
155057
155066
150991
152505
1
1
150923
157837
1 155458
1 158833
1 158833-OR
2
2
152608
152591
1
1
1
1
2
30”
151322
150843
152729
153653
151198
150845
1 n/a
2 151744
2
2
154369
155407
1
1
155406
159479
1 n/a
2 151744
2 154369
Page 40
EXPLODED VIEW AND PARTS LIST
NA3 Nut, 10-24 Clip
NA4 Assembly, Throttle Control
NA5 Cable, Throttle, CX3 Robin
P Assembly, Wire Harness, CX3 Premium
P1 Harness, Wire, CX3 Premium
P2 Tachometer (redington)
P3 Screw, 6-32 x 3/8, Pan Head Self Tapping
P4 Switch, Engine On/Off
PA Assembly, Wire Harness, Standard
PA1 Harness, Wire, Standard
PA2 Switch, Engine On/Off
Q Assembly, Accessory Pack,
Q1 Manual, Owner’s
Q2 Card, Warranty
Q3 Tube, Owner’s Manual
Q4 Wrench, ¾, Open End
R1 Carton, Outer
R2 Carton, Top Pad
R3 Carton, Tray
R4 Carton, Chock
R5 Carton, Accessory Box
R6 Carton, Bumper
S Blades
S1 MK-CX10, 12 x .100 x 1.0
S2 MK-CX10, 14 x .100 x 1.0
S3 MK-AX10, 12 x .100 x 1.0
S4 MK-AX10, 14 x .100 x 1.0
S5 MK-GX10, 12 x .100 x 1.0
S6 MK-GX10, 14 x .100 x 1.0
MK CX-3 Revision 09/04, Effective Date September 17, 2004
1
1
1
1
1
1
2
1
155407
155406
1 159495
1 n/a
1
1
2
159480
159477
153466
1 157851
1 n/a
1
1
158232
157851
1
1
1
1
1
1
-
1
1
2
1 n/a
1 159348
155859
155419
159476
159349
159349-01
159349-02
159349-03
159349-04
159349-05
159349-06
-
159615-CX
159616
159617
159618
159619
159620
Page 41
THEORY
THEORY OF DIAMOND BLADES:
Diamond blades do not really cut; they grind the material through friction. Diamond crystals, often visible at the leading edge and sides of the rim/segment, remove material by scratching out particles of hard, dense materials, or by knocking out larger particles of loosely bonded abrasive material. This process eventually cracks or fractures the diamond particle, breaking it down into smaller pieces. As a result, a diamond blade for cutting soft, abrasive material must have a hard metal matrix composition to resist this erosion long enough for the exposed diamonds to be properly utilized. Conversely, a blade for cutting a hard, nonabrasive material must have a soft bond to ensure that it will erode and expose the diamonds embedded in the matrix. These simple principles are the foundation of “controlled bond erosion”
Types of Cutting:
There are two basic types of cutting-Dry or Wet. The choice of which type of blade to use depends on:
•
The requirements of the job
•
The machine/tool utilizing the diamond blade
•
The preference of the operator
In the case of DRY cutting, the overwhelming popularity and quantity of hand-held saws and the flexible nature of MK Diamond blades to professionally handle most ceramic, masonry, stone and concrete materials, make the DRY cutting blade a very attractive tool. When using a DRY blade, the user must be aware of distinct operating practices to ensure optimum performance. DRY cutting blades require sufficient airflow about the blade to prevent overheating of the steel core. This is best accomplished by shallow, intermittent cuts of the material with periods of “free-spinning” (for several seconds) between each cut, to maximize the cooling process.
For WET cutting applications, MK has the exact blade to compliment both the material to be cut and the wet cutting machine to be used. During cutting operations, liberal amounts of water act as a coolant to support the cutting effectiveness and longevity of the WET blade. Additionally, using water adds to the overall safety of cutting operations by keeping the dust signature down.
Know All You Can About the Material You Wish to Cut
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 42
ACCESSORIES, ORDERING and RETURN INFORMATION
ACCESSORIES:
ITEM NUMBER
1.
159615 MK – CX10
12 x .100 x 1.0
DESCRIPTION
2.
159616
3.
159617
4.
159618
5.
159619
6.
159620
MK – CX10
14 x .100 x 1.0
MK – AX10
12 x .100 x 1.0
MK – AX10
14 x .100 x 1.0
MK – GX10
12 x .100 x 1.0
MK – GX10
14 x .100 x 1.0
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 43
ACCESSORIES, ORDERING and RETURN INFORMATION
ORDERING INFORMATION:
You may order MK Diamond products through your local MK Diamond distributor or, you may order direct from MK Diamond.
NOTE: There is a $25.00 minimum order when ordering direct from MK Diamond. All purchases must be made using VISA or MasterCard.
When ordering direct from MK Diamond, please have the following information ready before calling:
•
The Model Number of the saw
•
The Serial Number of the saw
•
Where the saw was purchased and when
•
The Part Number for the part(s) being ordered
•
The Part Description for the part(s) being ordered
Parts may be ordered by calling toll free to – 800 421-5830, or 310 539-5221 and ask for Customer Service.
If you have any technical questions, call – 800 474-5594 or 310 257-2845.
RETURN MATERIALS POLICY:
To expedite the service relative to the return of a product purchased through MK Diamond, please observe the following:
NOTE: When returning all items, they must have been purchased within the previous twelve (12) months.
•
Have the Model Number of the saw
•
Have the Serial Number of the saw
•
Have the location of where the saw was purchased
•
Have the date when the saw was purchased
•
Contact Customer Service for approval to return the item(s)
•
Obtain a Returned Goods Number (RGA) authorizing the return
•
Follow the packaging instructions in the following section
•
Ensure your item(s) are prepaid to the destination
For returned items, call toll free to – 800 421-5830 or 310 539-5221 and ask for Customer Service. If you have any technical questions, call – 800 474-5594 or 310 257-2845.
PACKAGING INSTRUCTIONS:
•
Dry the saw before shipping
•
When packing, include the following: MK CX-3, Diamond Blade
•
Package the unit in its original container or one of comparable size (do not ship the unit partially exposed)
•
Ensure all parts are secured in the packaging to prevent moving
AUTHORIZED SERVICE CENTERS:
For quicker repair time, you may contact MK Diamond Customer Service, toll free, at – 800 421-5830 or 310
539-5221 for the Authorized Service Center closest too you. If you have any technical questions, please call – 800 474-5594
MK CX-3 Revision 09/04, Effective Date September 17, 2004 Page 44
MK CX-3
CONCRETE SAW
OWNER’S MANUAL &
OPERATING INSTRUCTIONS
CALIFORNIA PROPOSITION 65 MESSAGE:
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
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 DIAMOND PRODUCTS, INC
1315 STORM PARKWAY, TORRANCE, CA 90509-2803
310 539 5158
Public link updated
The public link to your chat has been updated.
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