www.mkdiamond.com
PX-3 PAVER EXTREME
DRY PAVER SAW
OPERATION & PARTS MANUAL
Revision 101
Manual Part No. 160445
Caution: Read all safety and operating instructions before
using this equipment. This manual MUST accompany the
equipment at all times.
03.29.2009
MK Diamond Products, Inc.
PX-3 PAVER EXTREME NOTES
22
PX-3 PAVER EXTREME TABLE OF CONTENTS
MK DIAMOND PX-3 PAVER EXTREME
PAGE NO.
SAFETY
Safety Message/Alert Symbols 4
Safety Warnings 5
Hazard Symbols 6
General Safety 7-8
Electric Motor Safety 9
Electrical Requirements and Grounding Instructions 10-11
Operation & Safety Decals 12-13
PRODUCT SPECIFICATIONS
Specications 14
INSPECTION & SET-UP
Unpacking & Contents 15
Assembly & Setup 17-18
OPERATION
Chop & Cross Cutting 19
Rip & Angle Cutting 20
MAINTENANCE
Clean Up 21
Blade Dressing 23
Blade Change 24
Motor Brush Change 25
GENERAL PRODUCT INFORMATION
Parts List: Final Assembly 27-29
Accessories 31
Ordering Information 32
Contact Information and Limited Warranty 33
3
PX-3 PAVER EXTREME SAFETY
Safety precautions should be followed at all times when operating this equipment. Failure to read and
understand the Safety Precaution and Operating Instructions could result in injury to yourself and others.
This Operation and Part Manual has been developed to provide complete instructions for the safe and
efcient operation of the MK 1080 Paver Saw.
Before using this saw, ensure that the person operating the equipment has read and
understands all instructions in this manual.
SAFETY MESSAGE / ALERT SYMBOLS
A safety message alerts you to potential hazards that could hurt you or others. Each safety message is
preceded by a safety alert symbol ( ) and one of three words: DANGER, WARNING, or CAUTION.
DANGER
You WILL be KILLED or SERIOUSLY INJURED if you do not follow directions.
WARNING
You CAN be KILLED or SERIOUSLY INJURED if you do not follow directions.
CAUTION
You CAN be INJURED if you do not follow directions. It may also be used to
alert against unsafe practices.
Each message tells you what the hazard is, what can happen, and what you can do to avoid or reduce injury.
Other important messages are preceded by the word NOTICE.
NOTICE
You can cause PROPERTY DAMAGE to your machine if you don’t follow directions.
The safety labels should be periodically inspected and cleaned by the user to maintain good legibility at a
safe viewing distance. If the label is worn, damaged or illegible, it should be replaced. Contact MK Diamond or
your dealer for replacement.
4
PX-3 PAVER EXTREME SAFETY
SAFETY WARNINGS
SILICA DUST WARNING:
Grinding/cutting/drilling of masonry, concrete, metal and other materials with silica in their composition
may give off dust or mists containing crystalline silica. Silica is a basic component of sand, quartz, brick clay,
granite and numerous other minerals and rocks. Repeated and/or substantial inhalation of airborne crystalline
silica can cause serious or fatal respiratory diseases, including silicosis. In addition, California and some other
authorities have listed respirable crystalline silica as a substance known to cause cancer. When cutting such
materials, always follow respiratory precautions.
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
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 lter out microscopic particles.
5
PX-3 PAVER EXTREME SAFETY
Potential hazards associated with the MK 1080 Paver Saw will be referenced with Hazard Symbols which
appear throughout this manual, and will be referenced in conjunction with Safety Message Alert Symbols.
HAZARD SYMBOLS
ALWAYS read this Owner’s Manual before operating the machine.
ALWAYS avoid inhalation of and skin contact with silica dust and/or mist.
ON / OFF
ALWAYS place the power ON/OFF switch in the OFF position when the MK 1080 Paver Saw
is not in use.
ALWAYS wear approved eye protection.
ALWAYS wear approved respiratory protection.
NEVER operate equipment with covers, or guards removed.
ALWAYS use caution around gears. Keep ngers, hands, hair and clothing away from all moving
parts to prevent injury.
DO NOT touch hot engine components while the machine is running or immediately after
operating.
NEVER touch the power cord with wet hands or while standing in water when it is connected
to a power source.
NEVER operate the machine in an explosive atmosphere or near combustible materials.
6
PX-3 PAVER EXTREME SAFETY
RULES FOR SAFE OPERATION
DANGER
Failure to follow instructions in this manual may lead to serious injury or even death! This equipment is to
be operated by trained and qualied personnel only! This equipment is for industrial use only.
The following safety guidelines should always be used when operating the PX-3 Paver Saw.
GENERAL SAFETY
•DONOT operate or service this equipment before reading this entire manual.
This equipment should not be operated by persons under 18 years of age.
•
NEVER operate this equipment when not feeling well due to fatigue, illness or taking medicine.
•
NEVER operate this equipment under the inuence of drugs or alcohol.
•
Whenever necessary, replace nameplate, operation and safety decals when they become difcult to read.
•
•ALWAYS wear proper respiratory, hearing and shatterproof eye protection.
NEVER operate this equipment without protective clothing and steel toed boots.
ALWAYS store equipment properly when it is not being used. Equipment should be stored in a clean, dry
•
location out of the reach of children.
ON / OFF
•NEVER leave the machine unattended. Turn off electric motor when unattended.
CAUTION must be observed while servicing the machine. Rotating parts can cause injury if contacted.
•
•
Ensure that any electrical extension cord is protected against damage. ALWAYS ensure that the electrical
extension cord is not trapped underneath the machine.
•
DO NOT allow extension cord to come into contact with water or uids. DO NOT spray water onto electric motor.
•NEVER operate the machine in an explosive atmosphere.
•
Before starting the machine, ALWAYS check that all guards are in position and correctly tted. Check the
machine for loose bolts before starting.
•
Keep area around the machine clear of obstructions which could cause persons to fall onto moving parts.
•
ALWAYS ensure that the machine is on level ground before using.
•
Become familiar with the controls of the machine before operating.
7
PX-3 PAVER EXTREME SAFETY
•
ALWAYS disconnect AC power plug from power source before moving or servicing the machine.
•
Make sure the OFF/ON power switch on the electric motor is always in the OFF position before inserting
the machine’s power plug into an AC receptacle.
•
Operate electric motor only at the specied voltage indicated on the nameplate.
•
NEVER disconnect any “emergency or safety devices”. These devices are intended for operator safety.
Disconnection of these devices can cause severe injury, bodily harm or even death! Disconnection
of any of these devices will void all warranties.
•
Unauthorized equipment modications will void all warranties. Manufacturer does not assume responsibility
for any accident due to equipment modications.
•
NEVER use accessories or attachments, which are not recommended by MK Diamond for this equipment.
Damage to the equipment and/or injury to user may result.
•
The PX-3 Paver Saw is designed to be used only with approved diamond cutters.
WARNING
DO NOT use woodcutting, or carbide blades on this machine! Use ON LY Diamond blades on machine. Use
machine only to cut tile and masonry products. DO NOT use machine to cut wood or wood products.
MAINTENANCE SAFETY
•
NEVER lubricate components or attempt service on a running machine.
•
Keep the machinery in proper running condition.
•
Fix damage to the machine immediately and always replace broken parts, or missing decals.
8
PX-3 PAVER EXTREME SAFETY
ELECTRIC MOTOR SAFETY
For maintenance care and operation of the electric motor, refer to your electric motor instruction booklet
furnished with the electric motor.
Protect the electric motor from dust as much as possible and keep ventilating openings clean.
CAUTION
•DONOT spray water on the electric motor. Do not touch the plug with wet hands. To reduce
the risk of electrocution, keep all connections dry and off the ground.
•DONOT operate electric motor in an explosive environment.
WARNING
Use only extensions cords that are intended for outdoor use. These extension cords are identied 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. Always disconnect the extension cord from the receptacle before disconnecting
the product from the extension cord.
Electric Motor Connection
ALWAYS make certain that the power source required for the electric motor is correct and always use the
correct NEMA conguration plug. Motors can burn out when the line voltage falls 10% below the voltage rating of the motor. Failure to use proper voltage will cause the motor to overheat. Make certain that the correct
size grounded (3-wires) extension cord is used. See the table below.
To choose the proper extension cord:
•
Locate the length of extension cord needed in
table to the right.
•
Once the proper length is found, move down the
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.
NOTICE
column to obtain the correct AWG size required
for that length of extension cord.
1-2 H.P.
115v 230v
25’
100’
50’
150’
75’
250’
Fig. 1 Extension Cord Table
Max. Cord Length
Max. Cord Length
Max. Cord Length
No. 12 Wire
No. 10 Wire
No. 8 Wire
WARNING
Use of undersize 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
customers expense. There will be no warranty claim.
9
PX-3 PAVER EXTREME SAFETY
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!
WARNING
In case of a malfunction or breakdown, grounding provides a path of least resistance for electric current to
reduce the risk of electric shock. This tool is equipped with an electric cord having an equipment-grounding
conductor and a grounding plug. The plug must be plugged into a matching outlet that is properly installed and
grounded in accordance with all local codes and ordinances.
•
Do not modify the plug provided – if it will not t the outlet; have the proper outlet installed by a qualied
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 qualied 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 of
Figure 2. The tool has a grounding plug that looks like the plug illustrated in Sketch A of Figure 2. 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 qualied electrician. 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.
Metal Screw
Grounding
Pin
(A)
ADAPTER
Grounding
Means
(C)
Cover of
Grounded
Outlet Box
Grounding
Pin
(B)
(D)
Fig. 2 Circuit and Adapter Information
10
Surface
PX-3 PAVER EXTREME SAFETY
WARNING
To reduce the risk of electrocution, keep all connections dry and off the ground.
A Ground Fault Circuit Interrupter (GFCI) should be provided on the circuit(s) or outlet(s) to be used for this
machine. Receptacles are available having built-in GFCI protections and may be used for this measure of safety.
When using an extension cord, the GFCI should be installed closest to the power source, followed by the
extension cord and lastly, the machine.
WARNING
The pump requires a GFCI. To reduce risk of electric shock when operating the machine with the pump
plugged into the 3-pole receptacle on the motor, connect the saw to a GFCI outlet. See the pump manual and
informational tags enclosed separately for all pump information.
WARNING
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 Figure 3, 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 extension
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.
Power
Cord
Fig. 3 Drip Loop Information
Power
Tool
Drip Loop
Supporting
11
PX-3 PAVER EXTREME SAFETY
OPERATION & SAFETY DECALS
The PX-3 Paver Saw is equipped with a number of safety decals. These decals are provided for operator safety
and maintenance information. The illustration below also shows the location of these decals. Should any of
these operation or safety decals become unreadable, replacements can be obtained by calling (800) 262-
1575.
!
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.
Decal A
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.
115v 230v
25’
100’
50’
150’
75’
250’
Max. Cord Length
Max. Cord Length
Max. Cord Length
No. 12 Wire
No. 10 Wire
No. 8 Wire
Decal B
!
WARNING
DO NOT operate
this equipment
before reading
the owners’
manual!
Decal C
Figure 5. PX-3 Masonry Saw Safety Decal Sheet, Part No. 166011
12
PX-3 PAVER EXTREME SAFETY
SAFETY DECAL LOCATIONS
C
Decal
A
B
A
Fig. 6 PX-3 Paver Saw Safety Decal Locations
B
Location Description
Cutting Head, Side Silica Dust Warning
Motor, Top Extension Cord Notice
C
Assembly Frame Read Owner’s Manual Warning
13
PX-3 PAVER EXTREME PRODUCT SPECIFICATIONS
PX-3PaverSawSpecications
Model
Motor
Amps
Horsepower
Blade RPM
Blade Capacity
Arbor Size
Depth of Cut
Maximum Depth of Cut
Weight
Saw Dimensions (LxWxH)
- inches/mm
• The PX-3 is a versatile lightweight, dry, masonry saw
• Engineered as a 14” dry saw, consisting of a powerful 120V motor in a hard plastic
case and a PX-10 cutting blade with a 5-1/2” cutting depth
10-3/4" for materials up to 3" thick
527 x 406 x 457 mm
160256
120V/60 Hz
13 AMP
1-3/4 HP
3,500 RPM
14" (356 mm)
1"
5-1/2" (14" Blade)
37 lbs.
21" x 16" x 18"
• Specially designed 14” diameter segmented dry MK Diamond blade with a .110 inch
cutting width
• The PX-3 can cut a variety of masonry types including slump stone block, wall brick,
paver brick, roong tile, marble, granite, decorative rock, or almost any other non-
ferrous material
• The PX-3 is designed with a lockable trigger-operated switch in the handle to allow
for ease of operation
• Includes a Dust Collector nozzle that can be used to remove dust from the Lower
Case, using your shop vacuum’s 2-1/2 inch diameter hose
• Designed with an easy clean motor air lter to extend the life of the motor
• Replaceable motor brushes to extend operating life
• Pivoting backstop cuts material at any angle
• Motor has built-in thermal overload protection and dynamic brake
14
PX-3 PAVER EXTREME INSPECTION & SET-UP
UNPACKING
Your PX-3 Paver Saw has been shipped from the factory thoroughly inspected. Only minimal assembly is re-
quired. If not already done, remove the PX-3 from the carton and place it on a at surface. Remove strapping.
Remove the accessories box from the main carton and place along side the PX-3. Note that the Operation
and Parts Manual is in the accessories box.
CONTENTS
In the PX-3 packaging containers you will nd:
1 2 3 4
5 6 7 8
ITEM
NO.
1 PX-3 PAVER SAW 1
2
3
4
5
6
7
8
SEGMENTED DRY DIAMOND BLADE 1
REPLACEMENT MOTOR AIR FILTER 1
OPERATION & PARTS MANUAL 1
DESCRIPTION QUANTITY
DUST NOZZLE 1
BLADE WRENCH 1
SHAFT WRENCH 1
WARRANTY CARD 1
15
PX-3 PAVER EXTREME INSPECTION & SET-UP
TRANSPORT
CAUTION
•
The PX-3 weighs approximately thirty ve (35) pounds, making transport easy.
•
ALWAYS observe safe lifting practices when lifting the PX-3.
NOTICE
Lock the Cutting Head in the DOWN position using the Locking Pin when transporting the PX-3.
Due to its lightweight construction, the PX-3 is designed to be carried by the durable aluminum frame. Simply
lock the spring assisted Cutting Head (A) in the DOWN position, grasp the frame by the lower front and upper
back cross members (B), then lift and transport the PX-3 to the desired work location.
A
B
B
Fig. 7 Transporting the PX-3
16
PX-3 PAVER EXTREME INSPECTION & SET-UP
ASSEMBLY
Follow the assembly instructions to prepare your PX-3 for operation.
DIAMOND BLADE INSTALLATION
NOTICE
When installing the Retaining Screw, do not “cross-thread” and DO NOT overtighten the screw.
1.
Identify Blade Retaining Screw and Outer Flange (Figure 8).
2.
Remove Blade Retaining Screw and Outer Flange (Figure 9).
3.
Install and seat Blade. Verify Rotation (Figure 10).
4.
Install Blade Retaining Screw and Outer Flange then tighten (Figure 11).
Fig. 8 Identify Blade parts
Fig. 9 Remove parts
Fig. 10 Install Blade
Fig. 11 Install parts
DUST NOZZLE
The PX-3 Dust Nozzle (Figure 12) assists on the removal of dust and debris from the cutting area. Its shape is
designed so it directs the ow of these particles to the shop vac hose (not included). The hose required is a 2-
1/2” in diameter. Connect the hose from your shop vac (not included) to the Dust Collector Outlet located at
the rear of the PX-3 Cutting Area (Figure 13).
Attach Dust
Nozzle with
Shoulder
Dust Nozzle
Thumb Screw
and Washer
Nut
Fig. 12 Dust Nozzle location
Fig. 13 Dust Collector Outlet location
17
PX-3 PAVER EXTREME INSPECTION & SET-UP
SETUP
CAUTION
•
Before powering or starting, check for damage that could prevent this equipment from proper operation
or performing its intended function. Check for binding and alignment of moving parts. Check for damaged,
broken or missing parts.
•
Verify the trigger switch-locking button is in the RELEASE position.
•
Before connecting the PX-3 to a power supply, be sure the voltage, cycle and phase of the job site power
source meet the following requirements:
VOLTAGE
CYCLE
PHASE
•
If using an extension power cord, make sure the length and wire gauge corresponds to the requirements
120V
60 Hz
1-PHASE
listed in the table on page 9. 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.
•
DO NOT cover the motor vents. This could lead to motor overheating.
PORTABLE GENERATOR
If using a portable generator to provide power, ensure the generator meets the following minimum requirements:
8kW 120V/240 66.7/33.3 AMPS SINGLE PHASE
PRE-START INSPECTION
The pre-start inspection should be performed before beginning any job.
CAUTION
In order to avoid breaker tripping, a 20-amp circuit breaker should be used.
If the Diamond Blade shows signs of fatigue cracking, replace the Blade before starting work. See the Diamond
Blade Change Out section on Page 24.
1.
Inspect the Blade for damage. Verify the Blade is correct for the material being cut (Figure 14).
2.
Inspect the PX-3 for damage.
3.
Inspect the Motor Air Filter for cleanliness.
4.
Verify the Trigger Switch is unlocked.
3
2
Fig. 14 Pre-start Inspection Locations
18
4
1
PX-3 PAVER EXTREME OPERATION
CHOP CUTTING
A chop cut is performed by cutting completely through an object in one pass. The following section describes the
correct procedure for performing a chop cut.
1.
Position the Back Stop for a cross cut or rip cut.
2.
Position the work against the Back Stop.
3.
Depress the Trigger Switch to start. Lower the Cutting Head to begin cutting.
4.
Continue lowering the Cutting Head until the cut is complete.
5.
When cutting is complete, raise the Cutting Head and release the Trigger Switch. ALWAY S allow the Blade
to stop moving before removing work.
6.
Remove work from the cutting area.
CROSS CUTTING
1.2.Ensure that the Back Stop is in the Forward position for Cross Cutting (Figure 15).
Position the work against the Back Stop and perform the Cut (Figure 16).
Fig. 15 Back Stop in the Forward position
Fig. 16 Position work and perform cut
19
PX-3 PAVER EXTREME OPERATION
RIP CUTTING
1.
Loosen the knob and remove. (Figure 17)
2.
Remove the Back Stop Pivot Bolt with an Allen Wrench (Figure 18).
3.
Loosen the wingnut located underneath the Table (Figure 19).
4.
Position the Back Stop in a backward location and tighten both the knob and wingnut (Figure 20).
5.
Position the work against Back Stop as shown and perform the cut (Figure 21).
Fig. 17 Loosen knob Fig. 18 Remove Pivot Bolt
Fig. 20 Position Back Stop
Fig. 21 Position work and perform cut
Fig. 19 Loosen Wingnut
ANGLE CUTTING
Angle cuts are performed using the chop cut method. For angle cuts, the Adjustable Back Stop is removed and
repositioned. The following section describes the correct procedure for performing an angle cut.
1.
Remove and position the Adjustable Back Stop (Figure 22).
2.
Position the Back Stop for an angle cut (Figure 23).
3.
Position the work below the Cutting Head (Figure 24). Depress the Trigger Switch to start.
4.
Lower the Cutting Head to begin cutting. Continue lowering the Cutting Head until the cut is complete.
5.
Raise the Cutting Head and release the Trigger Switch. A LWAYS allow the Blade to stop moving before
removing work.
Fig. 22 Position Back Stop Fig. 23 Pivot to desired angle
20
Fig. 24 Position work
PX-3 PAVER EXTREME MAINTENANCE
CLEANUP
Clean the Air Filter and PX-3 surfaces after each use. The following section describes the correct procedure for
cleaning your PX-3.
1.
Unplug the PX-3 from its power source.
2.
Remove the Motor Filter Cap (Figure 25). The Filter Cap pops on and off without removing the retaining screws.
3.
Clean the Filter by removing it from the Filter Cap (Figure 26) and tapping it on a hard surface, or use
compressed air (Figure 27).
CAUTION
ALWAYS wear eye protection when using compressed air.
4.
Reinstall Filter into Filter Cap and replace it on the PX-3 Motor (Figure 28).
5.
Clean the remainder of the PX-3 by wiping its surface with a clean cloth.
Fig. 25 Remove Motor Filter Cap
Fig. 27 Clean up Filter by
tapping it on a hard surface or
using compressed air
Fig. 26 Remove Filter
Fig. 28 Reinstall Filter into Filter
Cap and place them back onto the
PX-3
21
PX-3 PAVER EXTREME MAINTENANCE
GENERAL MAINTENANCE
It is important to lubricate the Cutting Head Torsion Spring after each use. Use light oil such as WD-40 or 3-in-1
when lubricating parts.
Fig. 29 Lubricate Torsion Spring
MONTHLY MAINTENANCE
The following maintenance should be performed Monthly. Items should be inspected as described below.
Fig. 30 Clean and inspect the Inner
Flange and Motor Shaft
Fig. 31 Clean the Blade Retaining
Screw
22
PX-3 PAVER EXTREME MAINTENANCE
BLADE DRESSING
Like most cutting instruments, a Diamond Blade performs best when it is dressed. Over time and use, diamonds
on the outer edge will become smooth or “glazed” over. This will reduce grinding efciency and may cause the
blade to “wander” or bend, giving the illusion of an alignment problem. When this occurs, the blade will need to
be dressed. The Diamond Blade can be dressed using the MK Dressing Stick (Part #152792) and by following
the steps below.
1.
Set up the PX-3 for operation.
2.
Position the Back Stop to accommodate the Dressing Stick (Figure 32).
3.
Hold the Dressing Stick in position and depress the Trigger to start. Lock if desired.
4.
Lower the Cutting Head while pushing the Dressing Stick into the Blade. A LWAYS allow the Blade to stop
moving before removing work.
5.
Repeat the cut stroke eight times (Figure 33).
6.
When the Blade is dressed, release the Trigger Switch and raise the Cutting Head. Allow Blade to stop moving
before removing the Dressing Stick.
Fig. 32 Position Back Stop
Fig. 33 Place Dressing Stick
23
PX-3 PAVER EXTREME MAINTENANCE
DIAMOND BLADE CHANGE OUT
Change the Diamond Blade when it becomes worn, cracked or damaged. The following section describes the
correct procedure for changing out the Diamond Blade.
WARNING
Disconnect the tool before servicing and when changing accessories, such as blades, bits, cutters and the like.
1.
Unplug the PX-3 from its power source (Figure 34).
2.
Remove Retaining Nut and Outer Flange (Figure 35).
3.
Install the new Diamond Blade onto Blade Shaft. Ensure that it is seated properly on the Flange (Figure 36).
4.
Install the Retaining Nut and Outer Flange and then tighten using the Blade and Shaft Wrenches (Figure 37).
Fig. 34 Unplug the PX-3
Fig. 36 Install new Diamond Blade Fig. 37 Install Nut and Flange
Fig. 35 Remove Nut and Flange
24
PX-3 PAVER EXTREME MAINTENANCE
MOTOR BRUSH CHANGE OUT
WARNING
Disconnect the tool before servicing and when changing accessories, such as blades, bits, cutters and the like.
1.
Unplug the PX-3 from its power source and set it up for operation (see Inspection and Setup section).
2.
Locate and remove one Motor Brush Cap (Figure 38). There is one Brush on either side of the Motor.
3.
Remove the Motor Brush. Clean and brush Housing (Figure 39).
4.
Align and install the new Motor Brush (Figure 40).
5.
Install the Motor Brush Cap (Figure 41).
6.
Change the second Motor Brush by repeating the same steps listed above (Figure 42).
Fig. 38 Remove Motor Brush Cap
Fig. 41 Install Motor Brush Cap Fig. 42 Repeat for other Motor Brush
Fig. 39 Clean and brush Housing
Fig. 40 Install new Motor Brush
NOTICE
When installing the Motor Brushes, care must be taken to ensure the Spring End is straight before installing the
Motor Brush Cap.
25
PX-3 PAVER EXTREME MAINTENANCE
TROUBLESHOOTING
WARNING
Verify the Lockable Switch is unlocked and the saw is disconnected from the power source before performing
any troubleshooting procedure.
MOTOR STOPS TURNING
If the PX-3 Motor should stop turning, perform the following troubleshooting steps:
1.
Verify all power cords and plugs are fully connected.
2.
Verify the circuit breaker is 20 AMP or greater.
3.
Verify the circuit breaker is not tripped. Reset if necessary.
4.
Verify the source voltage is 115 Volts.
5.
If the Motor is still not turning after performing these troubleshooting steps, return your PX-3 to MK
Diamond for repair.
BLADE WILL NOT CUT PROPERLY
If the PX-3 Motor does not cut properly, perform the following troubleshooting steps:
1.
Check the Blade for smoothness or “glazing” (Figure 43). Dress the blade of necessary.
2.
Check the Blade for proper rotation (Figure 44).
3.
Ensure the Blade Core is not bent and the Arbor is not out of round (Figure 45).
4.
Verify the Blade is correct for the material being used (Figure 46). Use only PX-3 Diamond Blades.
Fig. 43 Check Blade for smoothness
Fig. 44 Check Blade for rotation
Fig. 45 Inspect Blade and Arbor
Fig. 46 Verify that Blade is correct
26
PX-3 PAVER EXTREME PARTS LIST
PAVER SAW, PX-3 ASSY FINAL
27
PX-3 PAVER EXTREME PARTS LIST
PAVER SAW, PX-3 ASSY, FINAL
ITEM
NO.
A
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
B
B1
B2
B2A
B3
B4
B5
B6
B7
B8
B9
B10
B11
PART OR
DESCRIPTION
IDENTIFYING
NO.
ASSEMBLY, FRAME N/A 1
CASTING, FRAME, RIGHT (COMP) 160246 1
CASTING, FRAME, LEFT (COMP) 160248 1
SUPPORT, HORIZONTAL FRAME 160249 2
TUBE CONNECTOR, 1/4-20 157930 4
SCREW, 1/4-20 X 2” HEX HEAD CAP 158282 4
WASHER, 1/4 SAE FLAT 151915 4
WASHER, 1/4 SPLIT LOCK 152591 4
DRIVE STUD, ROUND HEAD GROOVED #16 (1/4) X 1/2 158071 2
BUMPER W/WASHER, 1.0 (FOOT) 160418 4
SCREW, #8-32 X 1 PAN HEAD PHILLIPS 160446 4
WASHER, #8 SPLIT LOCK 160447 4
NUT, HEX #8-32 153549 4
LABEL, ADHESIVE “PX3” 160419 1
LABEL, PROP 65 WARNING 158322 1
LABEL, EXTENSION CORD WARNING 155672 1
ASSEMBLY, CUTTING HEAD N/A 1
ASSEMBLY, ARM W/MOTOR & HANDLE 160251 1
WRENCH, BLADE NUT, 14 MM 158406 1
WRENCH, BLADE SHAFT 158110 1
FLANGE, OUTER BLADE (STAMPED) 158105 1
FLANGE, INNER BLADE (TURNED) 158106 1
SCREW, M10-1.5 X 20 MM HEX FLANGE (BLADE RETAINING) 158107 1
CAP, MOTOR 157877 1
CAP, MOTOR FILTER 157878 1
SPACER PIN, CAP SCREW 157879 2
ELEMENT, FILTER 157729 1
SCREW, #8 X 1-1/2,COMBO HEAD PAN, SELF-TAPPING 158157 2
LABEL, SAFETY CAUTION 155576 1
QTY.
REQ.
C
C1
C2
C3
C4
C5
D
D1
D2
D3
ASSEMBLY, BLADE GUARD N/A 1
CASTING, BLADE GUARD (COMP) 160258 1
SCREW, M6-1 X 20 MM HEX HEAD CAP 158158 4
WASHER, M6 SPLIT LOCK 158159 4
DECAL, ADHESIVE “PAVER EXTREME” 160420 1
TAG, SERIAL 158096 1
ASSEMBLY, PIVOT CLAMP N/A 1
CASTING, PIVOT CLAMP (COMP) 160358 1
SCREW, 1/4-20 X 1-1/2 SOCKET HEAD CAP 154683 2
PIN, PIVOT .625 X 5.6 157645 1
28
PX-3 PAVER EXTREME PARTS LIST
PAVER SAW, PX-3 ASSY, FINAL CONTINUED
ITEM
NO.
D4
D5
D6
D7
D8
D9
E
E1
E2
E3
E4
E5
E6
E7
E8
E9
E10
E11
PART OR
DESCRIPTION
IDENTIFYING
NO.
SCREW, SET 1/4-20 X 1/4 CUP POINT 157528 1
SPRING, TORSION 160252 1
STOP BLOCK 158226 1
SCREW, 1/4-20 X 3/4, SOCKET HEAD CAP 152587 1
PIN, GROOVED DOWEL 5/16 X 1-1/4 160458 1
LOCK, CUTTING HEAD 160460 1
ASSEMBLY, TABLE N/A 1
TABLE (COMP) W/PLASTIC OVER MOLD 160409 1
SCREW, 5/16-18 X 3/4 HEAD CAP
WASHER, 5/16 SAE FLAT 151754 4
WASHER, 5/16 SPLIT LOCK 151747 4
BACKSTOP, TABLE 160349 1
SCREW, 3/8 X 1/2 SOCKET HEAD SHOULDER, 5/16-18 X 1.0 160459 1
NUT, WING NYLOK 5/16-18 151746 1
WASHER, 3/8 SAE FLAT 150923 2
WASHER, 5/16 SAE FLAT 151754 1
KNOB, 3 PRONG 3/8-16 X 1 156175 1
WASHER, 3/8 SPLIT LOCK 150925 1
151369 4
QTY.
REQ.
F
F1
F2
G
G1
G2
G3
G4
G5
J1
J2
J3
ASSEMBLY, PACKAGING CARTON N/A 1
CARTON, MK-PX3 160421 1
INSERT, CARTON
ASSEMBLY, ACCESSORY PACK N/A 1
BLADE, 14” PX10, SEGMENTED W/COOLING HOLES (6 MM RIM HEIGHT) 160448 1
WARRANTY CARD 155037 1
SELL SHEET, TILE ACCESSORY 156915 1
EXTRA FILTER ELEMENT 157729 1
OPERATION AND PARTS MANUAL, MK-PX3 160445 1
J
ASSEMBLY, PX3 DUST COLLECTOR N/A 1
NOZZLE, PX3 2-1/2 DUST 160408 1
SCREW, 1/4-20 X 1 SHOULDER THUMB 160461 1
NUT, 1/4-20 HEX W/WASHER 153941 1
29
PX-3 PAVER EXTREME PARTS LIST
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, non-abrasive 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 exible 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 sufcient airow 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
30
PX-3 PAVER EXTREME ACCESSORIES
ACCESSORY DESCRIPTION PART NO.
MK-PX10
BLADE
MK-PX30
BLADE
MOTOR AIR
FILTER
DUST
NOZZLE
MK-PX10, DRY CUTTING 14” SEGMENTED BLADE
MK-PX30, DRY CUTTING 14” SEGMENTED BLOCK BLADE
MOTOR AIR FILTER
PX3 2-1/2” DUST NOZZLE
157957
157944
157729
160408
31
PX-3 PAVER EXTREME CONTACT AND LIMITED WARRANTY
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, American Express, or MasterCard.
When ordering direct from MK Diamond, please have the following information ready before calling:
• The Model Number of the machine
• The Serial Number of the machine
• Where the machine was purchased and when
• The Part Number for the part(s) being ordered
• The Part Description for the part(s) being ordered
All parts may be ordered by calling toll free to (800) 421-5830 or (310) 539-5221 and asking for
Customer Service. For 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 items, they must have been purchased within the previous twelve (12) months.
• Have the Model Number of the machine
• Have the Serial Number of the machine
• Have the location of where the machine was purchased and when
• Contact Customer Service for approval to return the item(s)
• 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 asking for Customer
Service. For technical questions, call (800) 474-5594 or (310) 257-2845.
Packaging Instructions
• Package the part in its original container or one of comparable size
• 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 to you. For technical questions, call
(800) 474-5594.
32
PX-3 PAVER EXTREME CONTACT AND LIMITED WARRANTY
CONTACT:
Please contact MK Diamond Products, Inc. Customer Service Department with any questions you might have
regarding distributors, parts or service.
Telephone: (800) 845-3729
Fax: (310) 539-5158
E-mail: Customer_Service@MKDiamond.com
Customer Service Hours: Monday through Friday, 6AM-5PM PST
MK Diamond Products, Inc.
1315 Storm Parkway
Torrance, CA 90501
MK DIAMOND PRODUCTS, INC. LIMITED WARRANTY
MK DIAMOND PRODUCTS, INC. will guarantee every machine they build, to be free from defects in material
and workmanship for (1) one year from date of purchase. The obligation of MK DIAMOND PRODUCTS, INC.
under this warranty is limited to the repair or replacement of any parts which, under normal use, prove to be
defective in material or workmanship. The parts involved or the unit in question should be returned to MK
DIAMOND PRODUCTS, INC. or to a point designated by us, transportation prepaid.
This warranty does not obligate us to bear the cost of labor or transportation charges in connection with
replacement or repair of defective parts. Likewise, it shall NOT apply to any unit which has been subjected to
misuse, neglect or accident. This warranty does NOT apply to any machine which has been repaired or altered
outside our factory.
This warranty does NOT obligate MK DIAMOND PRODUCTS, INC., with respect to items not of our
manufacture, such as engines, motors, hydraulics, etc., which are subject to their own guarantees and warranties.
We shall in no event be liable for consequential damages or contingent liabilities arising out of failure of any
equipment or parts to operate properly.
© COPYRIGHT 2008, MK DIAMOND PRODUCTS, INC. ALL RIGHTS RESERVED.
The MK Diamond logo is a registered trademark of MK Diamond Products, Inc. and may not be used,
reproduced, or altered without written permission. All other trademarks are the property of their respective
owners and used with permission.
MK Diamond may have patents, patent applications, trade marks, copyrights of other intellectual property right
covering this product in this document.
This manual MUST accompany the equipment at all times. This manual is considered a permanent part of the
equipment and should remain with the unit if resold.
The information and specications included in this publication were in effect at the time of approval for printing.
33
MK DIAMOND PX-3 PAVER EXTREME
OPERATION & PARTS MANUAL
DOCUMENT NO. 160445
MK Diamond Products, Inc.
1315 Storm Parkway
Torrance, CA 90501
Toll-Free: (800) 845-3729
Phone: (310) 539-2221
Fax: (310) 539-5158
www.mkdiamond.com
34
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