MK Diamond Products BX-3 System manual

CAUTION:
Read all safety and
operating instructions
before using this
equipment
DRY BRICK SAW
OWNER’S MANUAL &
OPERATING INSTRUCTIONS
Enter the Serial Number of your new saw in the
space below. The Serial Number is located on the
left side of the blade guard.
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.
SERIAL NUMBER:
BX-3 BRICK XTREME

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 2
INTRODUCTION and TABLE OF CONTENTS
INTRODUCTION:
We at MK Diamond want to congratulate you on selecting the BX-3 Dry Brick 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 BX-3 should provide you with years of quality service. In order to help you, we have
included this manual. This owners manual contains information necessary to operate and maintain your BX-3
safely and correctly. Please take a few minutes to familiarize yourself with the BX-3 by reading and reviewing
this manual.
If you should have questions concerning your BX-3, please feel free to call our friendly customer service
department at: 800 421-5830
TABLE OF CONTENTS
Page
SAFETY:
Safety Messages 3
Damage Prevention Message 3
General Safety Precautions and Hazard Symbols 3
California Proposition 65 Message 5
Electrical Requirements and Grounding Instructions 6
Safety Label Locations 8
Brick Saw Specific Warnings 8
Product Specifications 9
UNPACKING AND ASSEMBLY
Unpacking 10
Contents 10
Transport 10
Assembly 11
SETUP, ADJUSTMENT AND OPERATION
Setup 12
Adjustment and Operation 14
Cleanup 17
MAINTENANCE AND TROUBLESHOOTING
Maintenance 18
Troubleshooting 24
EXPLODED VIEW AND PARTS LIST
Exploded View 26
Parts List 27
THEORY
Theory of Diamond Blades 29
ACCESSORIES, ORDERING and RETURN INSTRUCTIONS
Accessories 30
Ordering Information 31
Return Material Policy 31
Packaging Instructions 31
Authorized Service Centers 31
Manual Part No. 158168 Revision No. 2

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 3
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. Each message will be preceded by the word NOTE, as in the example
below.
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.
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 use power tools in damp or wet locations nor expose them to rain. Always keep the work area well
lighted.
KEEP CHILDREN AWAY.
All visitors and children should be kept a safe distance from work area.
MAKE THE 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.
In order to prevent injury, keep guards in place and in working order at all times.

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 4
SAFETY
USE THE PROPER EXTENSION CORD.
If using an extension cord make sure it is in good condition first. When using an extension cord, be sure to
use one heavy enough to carry the current your product will draw. An undersized cord will cause a drop in
line voltage that will result in a loss of power and overheating. TABLE 1, Page 7 shows the correct AWG
size to use depending on cord length and nameplate ampere rating. If in doubt, use the next heavier gage.
The smaller the gage number, the heavier the cord.
WEAR PROPER APPAREL.
Do not wear loose clothing, gloves, neckties, rings, bracelets, or other jewelry that may be caught in moving
parts. Non-slip footwear is recommended. Wear protective hair covering to contain long hair.
ALWAYS USE SAFETY GLASSES.
Safety glasses should always be worn when working around power tools. In addition, a face,
dust mask or respirator should be worn if a cutting operation is dusty. Everyday eyeglasses only
have impact resistant lenses and may not prevent eye injury-they are NOT safety glasses.
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.
DO NOT OVERREACH.
Keep proper footing and balance at all times by not overreaching.
MAINTAIN TOOLS WITH CARE.
Keep tools clean for the best and safest performance. Always follow maintenance instructions for
lubricating, and when changing accessories.
DISCONNECT TOOLS.
Power tools should always be disconnected before servicing or when changing accessories, such as blades,
bits, cutters, and the like.
REDUCE THE RISK OF UNINTENTIONAL STARTING.
Make sure the trigger switch; locking button is in the RELEASE position before plugging in a power
tool.
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.
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 and mountings and all other conditions
that may affect the operation of the power tool. A guard, or any damaged part, should be properly repaired
or replaced.
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.
NEVER LEAVE A 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.

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 5
SAFETY
Hazard Symbols:
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.
ACCIDENTAL STARTS!
Before plugging the equipment into an electrical outlet, be sure the trigger switch, locking button is in
the "RELEASE" position to prevent accidental starting. Unplug the power tool 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 covers, shrouds, or guards removed.
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 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.

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 6
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!
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 fit the outlet; have the proper outlet installed by a
qualified 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 qualified electrician or service personnel if the grounding instructions are not
completely understood, or if in doubt as to whether the tool is properly grounded
•Use only 3-wire extension cords that have 3-prong grounding plugs and 3-pole receptacles that
accept the tool's plug
•Repair or replace a damaged or worn cord immediately
This tool is intended for use on a circuit that has an outlet that looks like the one shown in Sketch A
of Figure 1. The tool has a grounding plug that looks like the plug illustrated in Sketch A of FIGURE
1. 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 qualified 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.
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 the Brick Saw. 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 saw.
Metal Screw
CCover of Grounded
Outlet Box
(A)
(B)
(C)
(D)
ADAPTER
Grounding
Means
Grounding
Pin
Grounding
Pin
FIGURE 1

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 7
SAFETY
To avoid the possibly of the appliance plug or receptacle getting wet, position the Brick Saw 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 2, 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.
Use only extensions cords that are intended for outdoor use. These extension cords are identified
by a marking "Acceptable for use with outdoor appliances; store indoors while not in use." Use only
extension cords having an electrical rating not less than the rating of the product. Do not use
damaged extension cords. Examine extension cords before using and replace if damaged. Do not
abuse extension cords and do not yank on any cord to disconnect. Keep cords away from heat and
sharp edges. Always disconnect the extension cord from the receptacle before disconnection the
product form the extension cord.
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.
To choose the proper extension cord,
•Locate the length of extension cord needed in TABLE 1 below.
•Once the proper length is found, move down the column to obtain the correct AWG size required
for that length of extension cord.
As an example, a fifty (50) foot extension cord would require an AWG size of 16.
Extension Cord Minimum Gage for Length
Volts Total Length of Cord in Feet
120V 25 ft. 50 ft. 100 ft 150 ft.
AWG AWG AWG AWG
14 12 Not Recommended
TABLE 1
Supporting
Surface
Power
Tool
Drip Loop
Power
Cord
FIGURE 2

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 8
SAFETY
SAFETY LABEL LOCATIONS:
Safety labels are located according to Figures 1 to 4 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. If a label comes off or becomes hard to read, contact MK Diamond or your dealer for a
replacement
Item Location Description Part No.
1. Left Side, Upper Cross Member Caution Safety Label 155576
2. Right Side, Upper Cross Member Dust Inhalation Warning Label 154337
3. Back, Upper Cross Member Extension Cord Warning Label 155672
4. Blade Guard Serial Number and Motor Specifications 158096
BRICK SAW SPECIFIC WARNINGS:
ØRead Owners Manual
ØWear Protective Gear for – •Head
•Lungs
•Ear
•Eye
21
3
4

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 9
SAFETY
PRODUCT SPECIFICATIONS:
The BX-3 is a versatile lightweight, dry, masonry saw. Operated and used according to this manual, the BX-3
will provide years of dependable service.
General Description:
The BX-3, Brick Xtreme, is engineered as a 14" dry saw, consisting of a powerful 115v motor in a hard plastic
case. The saw is capable of cutting brick and masonry up to 8" x 8" x 16" in size; the blade has a five (5) inch
cutting depth.
Motor and Weight Specifications:
Motor and Weight specifications for the BX-3 are listed in Table 2 below.
Voltage 115 v
Amperage 13 A
Frequency 60 Hz
RPM 3,500 rpm
Weight 45 lbs.*
Table 2
Blade Capacity:
The BX-3 uses a 14-inch diameter segmented dry MK Diamond blade with a .110-inch cutting width.
Masonry Types:
The BX-3 can cut a variety of masonry types including, cinder block, slump stone block, wall brick, paver
brick, concrete block and cylinders, roofing tile, marble, granite, decorative rock or almost any other non-
ferrous material.
NOTE:
The BX-3 is not designed to cut plastic or ferrous (metals) material.
Spring Assisted Cutting Head:
The BX-3 is designed with a spring assisted Cutting Head to allow for easier step cutting. The Cutting Head
can be locked in the down position when cutting smaller pieces.
Lockable Trigger Switch:
The BX-3 is designed with a lockable trigger-operating switch in the handle to allow for ease of operation.
Removable Motor Air Filter:
The BX-3 is designed with an easy clean motor air filter to extend the life of the motor.
Replaceable Motor Brushes:
The BX-3 is designed with replaceable motor brushes to extend operating life.
*Without Movable Cutting Table

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 10
UNPACKING, TRANSPORT and ASSEMBLY
UNPACKING:
Your BX-3 has been shipped from the factory thoroughly inspected. Only minimal assembly is required.
If not already done, remove the BX-3 from the carton and place it on a flat surface. Remove Strapping.
Remove the Accessories box from the main carton and place along side the BX-3 (Owners Manual is in
Accessories Box).
CONTENTS:
In the containers, you will find one (1) BX-3, one (1) 14 inch segmented dry diamond blade (or segmented
block blade), one (1) movable cutting table, one (1) adjustable cutting guide, one replacement motor air filter,
one (1) blade wrench, one (1) shaft wrench, one (1) owner's manual and one (1) warranty card.
BX-3 Segmented Dry
Diamond Blade Adjustable Cutting Guide Movable Cutting Table Extra Motor Air Filter
Blade
Wrench Shaft Wrench Owner's Manual Warranty Card
TRANSPORT:
The BX-3 weighs approximately forty (45) pounds (Without the Movable Cutting Table), making transport easy.
Always observe safe lifting practices when lifting the BX-3.
NOTE: Lock the Cutting Head in the DOWN position, and remove the Movable Cutting Table when
transporting the BX-3.
Due to its lightweight construction, the BX-3 is designed to be carried by the durable aluminum frame. Simply
lock the spring assisted cutting head in the DOWN position, grasp the frame by the lower front and upper
back cross members, lift and transport the BX-3 to the desired work location
Lift Point
Cutting Head
Locked Down
- OR -
Locking Pin
Inserted

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 11
UNPACKING, TRANSPORT and ASSEMBLY
ASSEMBLY:
Follow the assembly instructions to prepare your BX-3 for operation.
1. Movable Cutting Table Installation:
2. Adjustable Cutting Guide Installation:
3. Diamond Blade Installation:
NOTE: When installing the Retaining Screw, do not “cross-thread" and DO NOT over tighten the screw.
(C)
Seat and Tighten
Adjustable Cutting Guide
(B)
Position Adjustable Cutting Guide
Rotate Blade
Wrench Clockwise
(C)
Verify Correct Seating
(A)
Loosen Thumbscrew
(B)
Remove Retaining Screw
and Outer Flange
(A)
Identify Retaining Screw
and Outer Flange
(D)
Install Retaining Screw and
Outer Flange - Tighten
(C)
Install and Seat Blade –
Verify Rotation
(B)
Seat Roller Wheels on
Guide Rails
(A)
Position Movable Cutting Table
Ease of Movement
(See Maintenance Section
If Problems Arise)
Seated
Cutting Table
Front
Roller Wheels
Guide Rail
Guide Rails
Roller Wheels
Ruler/Stop
Align
Parallel Slots
Turn to Tighten
Retaining Screw
Motor Shaft
Hold Shaft
Wrench
Stationary
Rotate Blade
Wrench
Counter-clockwise
Outer Flange
Seat Blade on
Inner Flange
Rotation Direction
Hold Shaft
Wrench
Stationary
Turn to Loosen

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 12
SETUP, ADJUSTMENT and OPERATION
SETUP:
•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 BX-3 to a power supply, be sure the voltage, cycle and phase of the job site power
source meet the requirements of TABLE 3
VOLTAGE: 115v
CYCLE: 60hz
PHASE: single phase
TABLE 3
•If using an extension power cord, make sure the length and wire gauge corresponds to the requirements
listed in TABLE 1 on page 7. 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.
•Use an approved Ground Fault Circuit Interrupter (GFCI)
•Do not cover the motor vents as this could lead to motor overheating.
Portable Generator:
If using a portable generator to provide power, ensure the generator meets the following minimum
requirements:
8 kW 120/240 volts 66.7/33.3 amps Single Phase
Pre-start Inspection:
The pre-start inspection should be performed before beginning any job.
NOTE: 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.
(B)
Inspect Wooden Strip for
Excessive Grooves
(C)
Movable Cutting Table
Moves Freely
(A)
Inspect Blade for Damage – Verify
Blade Correct for Material Being Cut
(E)
Inspect Motor Air Filter for
Cleanliness
(D)
Inspect for Damage (F) Verify Trigger Switch Unlocked
Ease of Movement
(See Maintenance Section
if Problems Arise)
Cracks
Replace if Excessively Grooved
(See Maintenance Section
if Problems Arise)
Inspection
Points
Check for Cleanliness
(See Maintenance Section)
Underside of Handle
Trigger Switch
(Push to Unlock)
Trigger Lock
(Push to Lock)

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 13
SETUP, ADJUSTMENT and OPERATION
If an extension cord is used, first verify it meets the requirements of TABLE 1 (page 9). Plug the
BX-3 into the extension cord; plug the extension cord into a GFCI. Finally, plug the GFCI into the
power source in that order.
(G)
Plug GFCI into BX-3 (H)
Plug GFCI into Power Source
GFCI
Power
Source

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 14
SETUP, ADJUSTMENT and OPERATION
ADJUSTMENT AND OPERATION:
1. Cutting Setup:
DO NOT FORCE the blade to cut, it will do the job better and safer at rate for which it was
designed.
2. Step Cuts:
A Step Cut is performed when a series of small cuts of increasing depth are used to complete a single cut.
Step Cuts are used for large objects or for hard objects such as Firebrick and Pavers.
NOTE: 1. Step Cutting is the preferred cutting method for all cuts.
2. When cutting hard material Step Cutting should always be used.
3. Step Cutting will extend the life of the Diamond Blade.
(A)
Set Adjustable Cutting Guide (B)
Position Masonry Piece
(B)
Step Cut “Push” Stroke
(A)
Step Cut Setup
(E)
Cutting Complete
(D)
Repeat Steps B and C
Until Cut Complete
(C)
Step Cut “Pull” Stroke
Ruler/Stop Set Edge of Cutting
Guide to Desired Cut
Length on Ruler/Stop
Ruler Markings Ruler/Stop
Set against Adjustable
Cutting Guide and
Ruler/Stop
Depress Trigger to
Start (Lock if Desired)
Hold Work
in Position
Push Direction
Lower Cutting
Head 1/4 -1/2
Inch During
Push Stroke
Lower Cutting
Head Additional
1/4 -1/2 Inch During
Pull Stroke
Pull Direction
Repeat “Push”
and “Pull” Strokes
Until Cut Complete
Release Trigger Switch
Raise Cutting
Head
Allow Blade to
Stop Before
Removing Work
Adjustable
Cutting Guide

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 15
SETUP, ADJUSTMENT and OPERATION
3. Chop Cutting:
A Chop Cut is performed by cutting completely through an object in one pass.
4. Cutting with the Cutting Head Locked Down:
This method is preferred when cutting small objects.
(A)
Chop Cut Setup (B)
Lower Cutting Head
to Begin Cutting
(C)
Continue Lowering Head
until Cut Complete
(D)
Cutting Complete
(B)
Locked Cutting Head Setup
(A)
Lock Cutting Head in
the Down Position
(E)
Cutting Complete
(D)
Continue Pushing Piece into
Blade until Cut Complete
(C)
Slowly Push Piece toward Blade
to Begin the Cut
Release Trigger Switch
Raise Cutting
Head
Allow Blade to
Stop Before
Removing Work
Depress Trigger to
Start (Lock if Desired)
Position
Work Below
Cutting Head
Lower Cutting
Head Smoothly
to Cut
Hold Roller
Trolley Stationery Continue to Lower
Cutting Head until
Cut Complete
Align Holes and
Lock Cutting
Head in Position
Lock Trigger Switch
Hold Work
in Position
Push Slowly to Cut
Continue to Push
until Cut Complete
Unlock Trigger Switch
When Cut Complete
Remove Locking
Pin to Release
Cutting Head
Hold in Position
Push Slowly to Cut
Allow Blade to
Stop Before
Removing Work

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 16
SETUP, ADJUSTMENT and OPERATION
5. Angle Cuts:
Angle Cuts may be performed using the Step Cut, Chop Cut or the Locked Cutting Head cutting methods.
The following is utilizing the Locked Cutting Head method.
DO NOT FORCE TOOL, it will do the job better and safer at the rate for which it was designed.
(A)
Remove Adjustable
Cutting Guide
(B)
Reposition Adjustable
Cutting Guide
(C)
Position Adjustable
Cutting Guide
(E)
Locked Cutting Head Setup
(D)
Lock Cutting Head in
the Down Position
(I)
Release Cutting Head
(G)
Continue Pushing Piece into
Blade until Cut Complete
(F)
Slowly Push Piece toward Blade
to Begin the Cut
(H)
Cutting Complete
Remove Adjustable
Cutting Guide
Turn to Loosen
Ruler/Stop
Align 45°Slots
to Ruler/Stop
Ruler/Stop
Set against Adjustable
Cutting Guide and
Ruler/Stop
Align Holes and
Lock Cutting
Head in Position
Lock Trigger Switch
Hold Work
in Position
Push Slowly to Cut
Continue to Push
until Cut Complete
Unlock Trigger
Switch when
Cut Complete
Remove Locking
Pin to Release
Cutting Head
Hold in Position
Unlock Trigger
Switch when
Cut Complete
Allow Blade to
Stop Before
Removing Work
Adjustable
Cutting Guide

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 17
SETUP, ADJUSTMENT and OPERATION
6. Cleanup:
Always wear eye protection when using compressed air.
(B)
Unplug GFCI from BX-3 (C) Remove Motor Filter Cap
(A)
Unplug GFCI from Power Source
(E)
Clean Filter by Tapping on Hard
Surface or using Compressed Air
(D)
Remove Filter from Filter Cap
(H)
Clean the Movable Cutting Table
Roller Wheels and Guide Rails
(G)
Install Motor Filter
Cap onto Motor
(F)
Reinstall Filter into Filter Cap
(I)
Clean Remainder of BX-3
Tap on Hard
Surface to
Dislodge Dirt
Power
Source
GFCI
Pull Foam Filter
Out of Filter Cap
Align Filter Cap
Retaining Clips
to Spacer Pins
Push Filter Cap
onto Spacer
Pins to seat
Clean Guide Rails
Clean BX-3
Using Clean Cloth
Pull Straight Back
To Remove Cap
Install Foam Filter
into Filter Cap
Clean Roller
Wheels

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 18
MAINTENANCE AND TROUBLESHOOTING
MAINTENANCE:
1. General Maintenance:
The following maintenance should be performed following each use. Use Light oil, such as WD-40 or 3 in 1
when lubricating parts.
2. Monthly Maintenance:
The following should be performed monthly. Items should be lubricated as directed.
(B)
Clean and Lubricate
Blade Retaining Screw
(A)
Clean and Lubricate Inner Flange
and Motor Shaft
(B)
Lubricate Movable Cutting Table
Roller Wheels and Guide Rails
(C)
Check Roller Wheels and
Guide Rails for Wear
(A)
Lubricate Cutting Head
Torsion Spring
Clean and Lubricate
Lubricate Guide Rails
Clean and
Lubricate
Lubricate
Torsion Spring Lubricate
Roller Wheels
Inspect for
Wear

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 19
MAINTENANCE AND TROUBLESHOOTING
3. 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 efficiency 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 number
152792) and by following the steps below.
DON'T FORCE TOOL, it will do the job better and safer at the rate for which it was designed.
(A)
Set BX-3 for Operation (B) Set Adjustable Cutting Guide
to Cut 1/16-inch Strips
(C)
Position Dressing Stick
(E)
Begin Blade Dressing
(D)
Set up for Blade Dressing (F) Repeat Cut Stroke
to Dress Blade
Set up for Operation
(See Setup, Adjustment
and Operation)
Ruler/Stop Set Edge of Cutting
Guide to Desired Cut
Length on Ruler/Stop
Ruler Markings Ruler/Stop
Depress Trigger to
Start (Lock if Desired)
Hold Dressing
Stick in Position
Push Direction
Lower Cutting
Head while
Pushing Dressing
Stick into Blade
Repeat Cut
Stroke 8-times
(G)
Dressing Complete
Raise Cutting
Head
Allow Blade to Stop
Before Removing
Dressing Stick
Release Trigger Switch
Set against Adjustable
Cutting Guide and
Ruler/Stop
Adjustable
Cutting Guide

BX-3 Revision 11/00, Effective Date November 1, 2000 Page 20
MAINTENANCE AND TROUBLESHOOTING
4. Diamond Blade Change-out:
Disconnect the tool before servicing and when changing accessories, such as blades, bits,
cutters, and the like.
NOTE: When installing the Retaining Screw, do not “cross-thread" and DO NOT over tighten the screw.
(A)
Setup BX-3 for Operation (B)
Remove Retaining Screw
and Outer Flange
(C)
Remove Blade from
Motor Shaft
(E)
Install Outer Flange and
Retaining Screw – Tighten
(D)
Install Blade Under Blade Guard
and Onto Motor Shaft
Rotate Blade
Wrench Clockwise
Retaining Screw
Hold Shaft
Wrench
Stationary
Seat Blade on
Inner Flange
Rotation Direction
Hold Shaft
Wrench
Stationary
Rotate Blade
Wrench
Counter-clockwise
Set up for Operation
(See Setup, Adjustment
and Operation)
Remove Blade