MK Diamond Products MK-Manta III User manual

Manual Part No. 161117
Revision 12/04
MK-MANTA III
Model MK-Manta III
Core Drill
Owner’s Manual
Parts List &
Operating
Instructions
serial number
For your one (1) year warranty to
be effective, complete the warranty
card (include the serial number) and
mail it in as soon as possible.
please record the serial number of
your drill in this block.
CAUTION
READ SAFETY
AND GENERAL
INSTRUCTIONS
CAREFULLY
BEFORE USING
SAW FOR THE
FIRST TIME.

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Table of Contents
General Safety Instructions pg 2-3
Safety Messages and Symbols
Hazard Symbols
Damage Prevention Messages
Safety Label Locations
Drill Features pg 3-4
Motor
Carriage, Column and Base
Vacuum Pump
Frame
Water System
Assembly pg 4
Main Assembly
Feed Handle and Meter Box
Vacuum Base Gasket
Final Assembly
Drilling Operations pg 4-8
Electrical Requirements
Grounding
Extension Cords
Securing the Rig
Drilling Speeds
Drilling Pressure and the Ammeter
Water Supply
Carriage Rigidity
Shear Pin and Clutch Protection
Mounting Bits
Drilling Procedure
Deep Drilling
Maintenance pg 8
Cleaning
Vacuum Base Gasket
Trouble Shooting pg 8-9
Exploded Views pg 10-15
Part Listing pg. 16-19
How to Order Repair Parts back cover
Returned Merchandise Policy back cover
For your safety, read all instructions!
These safety precautions should be followed at all times. Failure to follow these
safety precautions could result in injury to yourself and others. Safety is a
combination of operator common sense and alertness at all times when this
drill rig is being used.
For your own safety and protection, do not attempt to operate the drill until it
is completely assembled and installed according to the instructions, and until
you read and understand all safety and operating instructions.
Take time to read and understand fully the owners manual and all safety labels
attached to the core drill.
Use safety equipment. Everyone in the work area should wear safety goggles
or glasses with side shields complying with current safety standards. Wear
hearing protection during extended use and a dust mask for dusty operations.
Hard hats, face shields, safety shoes, etc. should be used when specified or
necessary.
Use the right tool. Do not use a tool or attachment to do a job for which it is
not recommended. Do not alter the tool.
Keep your work area clean and safe to avoid accidents. Maintain a safe zone
and keep all visitors at a safe distance from the work area.
Always insure that the switch is off before plugging unit into electrical power.
Never leave the drill running unattended. Turn power off.
Do not over reach, maintain control. Keep proper footing and balance at all times. Maintain a firm grip.
Use extra care when using the tool on ladders, roofs, scaffolds, etc.
Maintain all tools with care for the safest and best performance.
Should any part of this drill become missing or damaged, or any component fail to perform properly,
shut off the drill and unplug the power source. Replace the missing, damaged, and/or failed part before
resuming operations.
Always keep alert. Do not allow familiarity (gained from frequent use) to cause a careless mistake. Always
remember that a careless fraction of a second is sufficient to inflict serious injury.
Think Safety The operation of any power tool can result in foreign objects being thrown into the eyes
causing severe damage. Use safety goggles to comply with ANSI Z87.1.
FORESIGHT IS BETTER THAN NO SIGHT!
IMPORTANT SAFETY INSTRUCTIONS FOR THE MK-MANTA III CORE DRILL
Safety Messages & Symbols
You CAN be injured if you don’t follow instructions.
Additional Information as to the nature of the hazard is provided by the following
hazards symbols which appear throughout the manual in conjunction with safety
message alert symbols.
A safety message informs you about potential hazards that could hurt you or others. Each safety message
is preceded by one of the three words: Danger, Warning, or Caution.
You WILL be KILLED or SERIOUSLY injured if you don’t follow instructions.
You CAN be KILLED or SERIOUSLY injured if you don’t follow instructions.
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DANGER
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WARNING
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CAUTION
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Hazard Symbols
Before plugging the equipment into an electrical outlet, ensure that the ON/OFF switch is in the OFF
position to prevent accidental starting. Unplug unit before performing any service operation.
Keep hands, feet, hair, and clothing away from all moving parts to prevent injury. Never operate the motor
with covers, shrouds, or guards removed.
Never touch electrical wires or components while the motor is running. They can be sources of electrical
shock which could cause severe injury or burns.
Other important messages that are designed to help prevent damage to your MK-Manta III Core Drill,
other property, or the environment are preceded by the word, “notice.”
Your MK-Manta III Core Drill or other property could be damaged if you don’t follow instructions.
Safety labels are located according to the table below. The labels contain important safety information.
Please read them carefully. These labels are considered a permanent part of your core drill. If a label comes
off or becomes hard to read, contact MK Diamond or your dealer for replacement.
Damage Prevention Messages
Safety Label Locations
notice
MK-Manta III Core Drilling Machine
The MK-Manta III Core Drill is a
powerful all-purpose drilling rig that is designed to drill holes, up to 12 inches in diameter (14 inches with the 2 inch
spacer), in all types of concrete slabs, floors, walls, and ceilings. The MK-Manta III Core Drill is designed for easy
anchoring using masonry anchors. A vacuum pump is provided to facilitate quick and easy anchoring to smooth floor
surfaces.
Motor
The MK-Manta III Core Drill is designed for use with a variety of motors. All motors are powerful two or three speed
units that provide the correct cutting speed over a range of diamond drill sizes.
Carriage, Column and Base
The carriage, column and base assembly of the MK-Manta III Core Drill is the strong, sturdy drilling platform that
provides the rigidity needed to quickly drill accurately placed, straight, smooth holes in all types of concrete. The
MK-Manta III’s base is slotted to provide easy anchoring of the drill, in a variety of drilling situations, with a single
masonry anchor. The slot also allows more than one hole to be drilled from a single anchor location. The base
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Item Location Description Part #
1 Base, Top Model and Serial Number 157730
2 Base, Top Label, Caution, Safety 155576
3 Base, Top Label, MK, Adhesive 157914
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Electrical Shock!
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Accidental Starts!
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Rotating Parts!

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Assembly
contains four leveling screws to insure accurate hole alignment even on uneven concrete surfaces. The carriage also
has a handle and the base has 6” wheels to provide easy transport.The carriage travel is controlled by a strong rack
and pinion gear-system, that can be locked at any point on the column. The single spoked sliding handle allows the
operator to easily control the drilling pressure and speed. At the top of the column is a strong jack-screw that allows
for additional bracing to overhead or opposite surfaces.
Vacuum Pump
The vacuum pump provides quick and reliable mounting to smooth concrete slab and floor surfaces. The powerful
vacuum pump provides 25 PSI of holding power which equates to over 1800 pounds of force, holding the MK-Manta
III Core Drill securely, for safe, accurate drilling. The pump has a quick disconnect connector on the hose at the base.
Water System
The water system for the MK-Manta III Core Drill is a simple hose hook-up and shut-off valve that provides water
under pressure to the diamond drill bit. The water travels to the center of the bit through the water swivel and spindle
to insure that water is supplied to the cutting end of the bit, even in deep drilling operations.
Unpacking
Open the accessory pack and check each item with the contents list, making certain that all items are accounted for
and in good condition before discarding any packing material. If there are any missing or damaged parts, call our toll
free number 1-(800)-421-5830 for instructions before proceeding with the assembly.
Contents of the carton: It varies depending on model. MK-Manta III Core Drill (including column, carriage, base and
motor), Vacuum Pump and Accessory Pack.
Contents of the Accessory Pack: Control box, meter box knob, leveling screws (4), feed handle (1) and knobs (2),
water valve, vacuum base gasket, wrench, MK-Manta III manual, MK Diamond warranty card, motor manual and
motor warranty card.
For your own safety and protection, do not attempt to operate this drill until it is completely assembled
and installed according to these instructions, and until you understand the machines capabilities and the
potential hazards associated with it.
Step 1 Slide carriage assembly onto column. Assemble handle and hub.
Turn the vacuum base over. Press the gasket into the groove in the underside of the base. The gasket
is cut, at the factory, to the correct length, so that the two ends will butt together once the gasket is
installed.
Step 2 Assemble the two pieces of the water valve, and install the valve, into the water swivel, on the
motor, just above the spindle (see Milwaukee literature).
Plug the cord from the motor into the upper outlet on the meter box (the one opposite the motor on-off
switch. The other outlet on the meter box is for use with the vacuum pump.
The MK-Manta III Core Drill rig has been equipped with a Milwaukee motor. The drill should be used on
an electrical circuit, separate from other loads, and protected by a 30 amp circuit breaker. The MK-
Manta III Core Drill has been provided with a 20 Amp plug (NEMA 15-20) or a 30 Amp (NEMA 15-30)
locking plug depending on the model.
The MK-Manta III Core Drill is marked “Grounding Required” and has a three wire cord and three prong
grounding plug. The plug must be connected to a properly grounded outlet (see figure below). If the
tool should electrically malfunction or break down, grounding provides a low resistance path to carry
Feed Handle and Meter Box
Vacuum Gasket
Final Assembly
Electrical Requirements
Drilling Operations
Grounding
WARNING
!

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electricity away from the user, reducing the risk of electrical shock.
The grounding prong in the plug is connected through the green wire inside the cord to the grounding
system in the tool. The green wire in the cord must be the only wire connected to the tool’s grounding
systems and must never be attached to an electrically live terminal.
Your tool must be plugged into an appropriate outlet, properly installed and grounded in accordance with all
codes and ordinances.
Improperly connecting the grounding wire can result in the risk of electric shock. Check with a qualified
electrician if you are in doubt as to whether the outlet is properly grounded. Do not modify the plug provided
with the tool. Never remove the grounding prong from the plug.
Do not use the tool if the cord or plug is damaged. If damaged, have it repaired by an authorized service
facility before use. If the plug will not fit the outlet, have a proper outlet installed by a qualified electrician.
The use of a circuit protected by a ground fault interrupter (GFI) is highly recommended.
Use extension cords of the proper cable size, referring to the following chart.
Cord length 25 feet 50 feet 75 feet
Wire Size (AWG) #10 #8 #6
Never use a extension cord smaller than shown in the chart. Be sure your extension cord is properly wired
and in good electrical condition. Always replace a damaged extension cord or have it repaired by a qualified
electrician before using it. Protect your extension cords from sharp objects, excessive heat and damp or
wet areas.
Notice: Using an extension cord with inadequately sized wire causes a serious drop in voltage, resulting in
loss of power and possible tool damage.
A. Use a concrete anchor. Use either a 1/2 or 5/8 concrete anchor to secure the base to the work
surface. Always be sure to level the rig and tighten the lock nuts on the leveling screws before tightening
the anchor. Using a concrete anchor, insert a bolt through the slot located on the base and tighten the bolt
firmly in the anchor.
It is essential to always secure the rig to the work surface to help prevent personal injury and also to
protect the rig. An unsecured rig could rotate during drilling and possibly cause injury. It could also cause
the bit to chatter against the work surface or bind in a hole, which can fracture the diamond. Always test
the anchor for firm attachment before drilling.
B. Vacuum base. The MK-Manta III Combo Core Drill Rig is equipped with a vacuum pump. This pump is
designed to provide approximately 1800 pounds of total holding power. In order to provide the most rigidity
to your core rig the unit should be used on a relatively smooth surface such as concrete. (If the surface is
too porous or rough the vacuum mount may not hold securely.)
1. Turn the vacuum pump on and step on the vacuum base until a vacuum is created and the base
adheres to the work surface.
2. Level the rig using the leveling bolts. Use a minimum amount of adjustment to the leveling bolts to
avoid breaking the vacuum seal.
The vacuum gauge should read approximately 25 pounds per square inch (PSI) of pressure. If the gauge
reads 20 PSI or less, check the work surface for conditions which may interfere with adequate suction
such as cracks, dirt or debris on a porous surface.
Do not drill if the gauge reads less than 20 PSI. Do not use vacuum base on cracked,
uneven, porous or vertical surfaces.
C. Additional Support. For added rigidity, you may use a telescoping extension assembly in conjunction with
a concrete anchor or vacuum base. To use a telescoping assembly, first
Extension Cords
Securing the Rig: Recommended Methods
WARNING
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WARNING
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WARNING
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WARNING
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The MK-Manta III Core Drill, Milwaukee and DeWalt will operate in either a high or low gear
speed. This speed combined with applied pressure provides the cutting action for the core bit.
Speed selection and pressure are determined by hardness of material, aggregate size and grade
of diamond core bit. Generally, harder material and larger aggregates require more speed and
pressure. Use low speed for large diameter bits and high speed for small diameter bits. Changing of
the speeds is accomplished by using the speed shift lever built into the gear case.
Notice: Change the gears only when the motor is off.
All building materials and work surfaces are composed of aggregate of various size. Aggregates
are materials such as gravel or crushed stone. The size of the grains and the hardness of the
material affects the speed of drilling. Most building materials contain some type of steel reinforcements. All
MK-Manta III bits are designed to cut through these types of reinforcing steel. However, bits should never
be used for drilling solid steel plates. Proper selection of the diamond core bit should be based on material
to be drilled and performance requirements.
Steady, even pressure assures accurate holes and longer bit life. Always maintain
consistent pressure so that the bit is constantly cutting.
Notice: Too much pressure will damage the bit and motor. Too little pressure will glaze over the diamonds,
reducing cutting efficiency and prematurely wearing the bit. The ammeter is the gauge on the Control Box.It
provides pressure feedback information during drilling, allowing the operator to help prevent motor overload
and premature bit wear. The green area is the operating range, and the red area is the overload range.
Generally, the operator should keep the ammeter needle in the upper area of the operating range for large
diameter bits, and in the lower green area for small diameter bits. If the bit contacts steel reinforcing
rods, the needle on the ammeter may jump slightly showing a heavier load. If this occurs, do not decrease
pressure or you may damage the diamonds. The MK-Manta III Core Drill may be operated with the
ammeter needle into the red area for the short period of time that it takes to cut through a steel rod.
An adequate supply of clean water is necessary for drilling. Connect the water supply hose to the hose
fitting on the output of core drill motor. Take precautions that the water supply will not be interrupted
during the drilling operations.
Notice: If a bit is run dry it can be ruined in a few seconds.
Drilling Speeds
Drilling Pressure and the Ammeter
Water Supply
Carriage Rigidity
level the rig with the leveling screws. Secure the rig with an anchor or the vacuum base. Place the top flange of
the extension against a ceiling or wall and place the other end on the jack screw of the column. The assembly is
adjustable up to 14 feet. Use the jack screw to tighten the assembly and to make small adjustable.
Specifications for the different motors are listed in the table below.
15
18
20
It is essential that the carriage fits snugly on the column to prevent the motor or bit from wobbling during
drilling. Through normal use the carriage may loosen from the column and begin to wobble. Before drilling,
always make sure the carriage is rigid by trying to wiggle it with your hand. If the carriage is secure it
should not move. If it does move, tighten the adjustment screws for the nylon gibs that secure the carriage
to the column.
Tighten only enough to remove the play. Do not over tighten.
Manufacturer Model # Amps Volts Safety Override Speed (RPM) Part Number
Milwaukee 4090 15 120 Shear Pin 375-750 155976
Milwaukee 4094 20 120 Shear Pin 450-900 154633
Milwaukee 4095 15 120 Shear Pin 500-1000 155045
Milwaukee 4095-5 10.45 220 Shear Pin 400-900 154817
Milwaukee 4096 20 120 Shear Clutch 450-900 155540
Milwaukee 4099 20 110 Shear Pin 600-1200 157378
Core Bore CB748 20 120 Slip Clutch 350-900 154628
Eibenstock EBM
300/ 3 P
20 120 Slip Clutch 270/ 700/ 1250 158754

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When drilling through concrete floors, the core will generally drop from the diamond bit. Caution should be
provided for people and property below the drilling area.
1. Ensure that you have read and fully understand the complete operation of the Manta III Core Drill you
have purchased prior to commencing drilling operations.
2. Select and install a diamond core bit appropriate for the job. Note: Grease the bit threads to help
prevent the bit from seizing on the spindle due to surface corrosion.
3. Select either high or low gear speed according to the chart in the Drilling Speeds section of this manual.
(Do not shift speed when motor is on.)
4. Connect water hose to water swivel.
5. Secure the rig as described in the Securing the Rig section of this manual.
If using the vacuum base, do not continue operations unless the vacuum gauge reads more than 20 inches
of mercury. Normally, the gauge will read 23 inches or more.
6. Turn the motor switch on the control box on. Turn the water on so that an adequate flow of water is
supplied through the water swivel, to the bit. Hold the sliding handle and slightly loosen the carriage lock
knob. Slowly rotate the handle to lower the bit into the work piece - apply steady even pressure.
Note: To prevent the bit from wandering, always use a light load to start the hole and wait for the diamond
tip of the bit to penetrate the work surface before increasing the load.
7. Use consistent pressure so that the bit cuts consistently. Insufficient pressure will cause the diamond
core bit to glaze over. Too much pressure will overload the motor and crush the diamonds. Use the
ammeter on the control box as a guide for proper pressure.
If the rig shifts during drilling, stop the motor, reposition the rig, and resume drilling.
8. Monitor the water flow. If the water flow is adequate, the water leaving the cut should be slightly sludgy.
When cutting metal rebar, the water should have a gray metal coloring
Notice: When drilling into prestressed concrete the bit may cut into the hardened steel cable under
tension. As the bit cuts through each strand, the tension in the cable is released. The diamond segments
on the bit crown can be damaged by the loose wires. The best prevention for bit damage is to use a core
bit designed especially for drilling in prestressed concrete.
9. When the cut is complete, keep the drill motor on and rotate the sliding handle to bring the bit up out of
the hole. The bit may become stuck if the motor is turned off before the bit is completely clear of the hole.
Once the bit is clear of the hole, tighten the carriage lock knob, turn off the motor and the water supply.
The MK-Manta III Core Drill uses either a shear pin or a friction clutch to protect the gear and motor
against overload. The shear pin drives the outer portion of the drive spindle. If the motor should overload
the pin will shear. Extra shear pins are supplied or can be ordered from MK Diamond’s Customer Service.
Tighten only enough to remove the play. Do not over tighten. Another model features a friction clutch
rather than a shear pin to protect the motor and gears. If the motor overloads the clutch will begin to slip
and the bit will stop rotating. The clutch is factory-set and does not require adjustments. However, under
normal use, the clutch may start to slip at low torque. If this happens, refer to the motors Owner’s Manual.
Bits with permanently attached adapters simply screw directly onto the threads of the drill spindle. Ensure
that the end of the bit butts up squarely against the shoulder on the spindle.
*Thread anti-clockwise to attach core bit.
*Thread clockwise to loosen.
The MK-Manta III Core Drill, equipped with either the Milwaukee, Core Bore or Eibenstock motor, has a 1
1/4”-7 thread. For bits with other threads, use a shaft coupling. After a bit has been mounted, turn the
power on and check that there is a minimum of run-out or wobble.
To reduce the risk of injury, always unplug tool before attaching or removing accessories. Only use
specifically recommended accessories. Others may be hazardous.
Mounting Bits
Drilling Procedure
Shear Pin and Clutch Protection
WARNING
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Perform this action only with the motor turned off and the unit unplugged to prevent accidental starting and
injury. Exercise extreme caution in hand placement when removing a stuck core, as the core can be heavy
and inflict injury.
When drilling holes that are longer than the core bit, follow the steps below.
1. Begin drilling the hole as usual. When you have drilled to the length of the bit, retract the bit from the
hole and turn off the motor and water as usual.
2. Break off the core by driving a chisel or slender wedge into the circular kerf. Remove the core using
core tongs, bent music wire or anchor bolts.
3. After removing the core, insert the bit carefully into the hole, attach a bit extension to the bit and core
drill rig, then continue drilling as usual.
Periodic maintenance, including cleaning, lubrication and inspection for wear and damage are routine
servicing procedures. Following the procedures as outlined can prevent serious damage or malfunctioning of
the machine, and aid in preserving the useful life of core drill bits.
Before performing any maintenance to the MK-Manta III Core Drill, always unplug the unit from the
electrical power source. Be sure the On-Off switches are in the Off position, after servicing, and before
plugging the unit back in.
Clean the machine after use, being careful to remove dust and slurry from the motor, vents, carriage and
column. Keep tool handles clean, dry and free of oil and grease. Use only mild soap and a damp cloth to
clean this tool since certain agents and solvents are harmful to plastics and other insulated parts.
Never use flammable or combustible solvents around tools.
Through normal use, the rubber gasket on the underside of the vacuum base can become worn, requiring
replacement. Periodically check the gasket for wear. If replacement is required, clean the groove in the
base before installing a new gasket.
Note: Normally the core will drop out of the bit, and remain in the hole. However, in cases where the core
sticks in the bit, it is sometimes necessary to push the core up and down with the water running to allow
the core to drop out. Sometimes very light tapping on the barrel of the bit with a piece of wood will loosen
the core.
Deep Drilling
Maintenance
Cleaning
Vacuum Base Gasket
Troubleshooting
When trouble occurs, be sure to check the simple causes which, at first may seem too obvious to be
considered. Refer to the table on page 8 for problems and their possible causes.
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PROBLEM
Low
Penetration
Rate Under
Prevailing
Drilling
Parameters
Heavy Wear at
Steel Tube
No return of
fluid
Bit Stuck
Shear Pin Fail
WHAT TO DO?
1. Check fluid return.
2. Check motor
speed range.
3. Check wear
picture of bit face.
Check where fluid is
leaking.
1. Try to raise bit, if
impossible:
2. Stop rotation.
1. Stop rotation.
2. Raise bit.
INDICATION
Fluid not muddy.
Evidence of steel
cuttings.
Bit worn out.
Diamond without
exposure.
(flush with bond matrix)
Face of bit plugged with
cuttings.
Face of bit covered with
steel
Steel cuttings stick to
bit face.
Wear picture of polished
diamonds.
Deep grooves.
Heavy Wear.
Loose material (cut
steel or aggregates) is
blocking between core
and bit or between
borehole and bit.
Drill moved during drilling
(poor fastening).
Bit deviates, guide ways
on cradle have too much
clearance.
No clearance between
tube I.D. or O.D. and
crown I.D. or O.D.
Drill impacted to stall at
lower speeds.
SOLUTION/ RECOMMENDATIONS
Adjust drilling parameters to recommendations for
reinforcement.
See recommended
speeds.
Replace with new bit.
Increase bit load.
Reduce RPM, or resharpen bit.
Break core, clean bottom of hole or reduce RPM
and drill with increased bit load.
Clean bit face by sharpening methods such as
drilling dry at low RPM in a concrete block 3/8”
deep max.
Increase water flow rate.
Clean bit face by drilling in abrasive concrete
block.
Reduce RPM.
Increase bit load.
Use lower speed; increase bit load.
Adjust guidance on carriage.
Adjust guidance on carriage.
Nicks or dirt on mounting faces.
Replace bit.
Improve flushing.
Replace bit.
If Leaking can be tolerated; continue drilling with
increased attention.
Step 1: Apply wrench and rotate bit in both
directions while bit is under tension. If not
successful:
Step 2: Try to over drill a hole slightly larger than
the stuck bit.
Disconnect bit and remove, break core. Start over
with improved fastening of machine.
Disconnect machine, adjust guidance.
Replace bit.
Use recommended speed for the bit diameter
used. Raise bit when it begins to load down. Feed
bit slowly when chattering begins.
CAUSE
Drilling in steel
reinforcement.
Speed not correct for the bit
size used.
Insufficient bit load.
Rotated with high RPM on
reinforcement.
Loose material at bottom of
hole.
Not enough fluid pumped.
Cuttings burnt to matrix.
Diamonds prevented from
cutting.
Steel cuttings stick to bit
face. Diamonds prevented
from cutting.
Bit load too low.
Bit speed too high.
Worn or open guide ways on
cradle. Borehole is getting
undulated.
Protruding steel.
Spindle is offset.
Bit out of true.
Bit is deformed.
Poor cleaning of abrasive
cuttings.
Crown clearance worn out.

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MANTA III COMBO EXPLODED VIEW AND PARTS LIST
EXPLODED VIEW

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MANTA III COMBO EXPLODED VIEW (cont...)

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MANTA III COMBO EXPLODED VIEW (cont...)

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MANTA III COMBO EXPLODED VIEW (cont...)

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MANTA III COMBO EXPLODED VIEW (cont...)

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MANTA III COMBO EXPLODED VIEW (cont...)

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MANTA III COMBO PARTS LIST
PARTS LIST:
Item Description Qty MK p/n
AE Assembly, M3 Base, Combination 1 n/a
AE1 Base, M3 Combination 1 157427
AE2 Screw, -13 x 3  Hex Hd. Cap, Full Thread 4 158284
AE3 Level, Circular Bubble 1 157429
AE4 Gasket, Neoprene size 1” x  x 47.8” 3.98’ 154543
AE5 Plate, Air Seal 1 157430
AE6 Gasket, 1/8” Neoprene Rubber 1 157431
AE7 Fitting,  MNPT x 3/8 Barb 1 154659
AE8 Screw, Spade Hd. Thumb -20 x  w/ Shoulder 2 157432
AE9 Label, Manta Serial Tag 1 157730
AE10 Label, Caution, Safety 1 155576
AE11 Label, MK, Adhesive 1 157914
AF Assembly, M3 Base, Combination Tilt 1 n/a
AF1 Base, M3 Combination Tilt 1 158393
AF2 Screw, -13 x 3  Hex Hd. Cap, Full Thread 4 158284
AF3 Level, Circular Bubble 1 157429
AF4 Gasket, Neoprene size 1” x  x 47.8” 3.98’ 154543
AF5 Plate, Air Seal 1 157430
AF6 Gasket, 1/8” Neoprene Rubber 1 157431
AF7 Fitting,  MNPT x 3/8 Barb 1 154659
AF8 Screw, Spade Hd. Thumb -20 x  w/ Shoulder 2 157432
AF9 Label, Manta Serial Tag 1 157730
AF10 Label, Caution, Safety 1 155576
AF11 Label, MK, Adhesive 1 157914
AF12 Screw, -13 x 4- Hex Hd. Cap 1 158397
AF13 Washer,  SAE Flat 2 150924
AF14 Washer,  Split Lock 1 153524
AF15 Nut -13 Hex 1 151282
AG Assembly, M3 Base, Anchor Tilt 1 n/a
AG1 Base, M3 Anchor, Tilt 1 157413
AG2 Screw, -13 x 3  Hex Hd. Cap, Full Thread 4 158284
AG3 Nut, -13 Hex Hd. 2 151282
AG4 Screw, -13 x 4  Hex Hd. Cap 2 158397
AG5 Washer,  SAE Flat 4 150924
AG6 Washer,  Split Lock 2 153524
AG7 Label, Caution, Safety 1 155576
AG8 Level, Circular Bubble 1 157429
AG9 Label, Manta Serial Tag 1 157730
AG10 Label, MK, Adhesive 1 157914
AG11 Label, For Information on Service 1 155038
B Assembly, M3 Wheel Bracket, Combo n/a
B1 Bracket, Wheel, Combo 1 158392
B2 Wheel 6” x 1  x  axle 2 157434
B3 Cap, Push ” Stainless Steel 2 157435
B4 Collar,  I.D. x 1” O.D. x 7/16 2 157518
B5 Screw, -20 x  Flat Head Socket 4 154657
B6 Knob, Knurled Head -20 x 2  1 157436
B7 Pad, Toggle -20 1 157437
B8 Label, Manta 1-1/4 x 5 1/8 1 155388
BA Assembly, M3 Wheel Bracket, Tilt Combo n/a
BA1 Bracket, Wheel, M3 Tilt Combo 1 158321
BA2 Wheel 6” x 1  x  axle 2 157434
BA3 Cap, Push ” Stainless Steel 2 157435
BA4 Collar,  I.D. x 1” O.D. x 7/16 2 157518

16 MANTA III
Revision 12/04, Effective Date December 6, 2004
17
MANTA III Revision 12/04, Effective Date December 6, 2004
MANTA III COMBO PARTS LIST(cont...)
BA5 Screw, -20 x  Flat Head Socket 4 154657
BA6 Knob, Knurled Head -20 x 2  1 157436
BA7 Pad, Toggle -20 1 157437
C Assembly, Telescoping Support n/a
C1 Tube, Telescoping Support 1 158340
C2 Rod, Telescoping Support 1 158341
C3 Clovis Pin ∅1/4 x 1  1 158452
C4 Clovis Pin ∅1/4 x 1 5/8 1 158453
C5 Pin, Cotter 1/16 x 5/8 2 158451
C6 Knob, Tri Plastic, 5/16-18 x  1 158456
C7 Bracket, Telescoping Rod Support 1 158342
C8 Nut, M22 x 1.5 1 158455
C9 Washer, M22 Flat 1 158454
D Assembly, Carriage 2 ” 1 n/a
D1 Body, Carriage 1 155757
D2 Shaft, Gear, Short 1 158348
D3 Bearing 2 137711
D4 Plate, Adjustment 3 157317
D5 Slide, Carriage 8 157318
D6 Screw, 6-32 x 1/2 Flat Head Phillips Machine 8 154448
D7 Screw, 6-32 x 3/8 Flat Head Phillips Machine 8 157521
D8 Nut, 6-32 Nylok Hex 8 157519
D9 Knob, Davies -20 x  1 151681
D10 Washer,  SAE Flat 1 151915
D11 Back, Carriage 1 157438
D12 Screw, 1/4-20 X 1 Socket Head Cap 4 151049
D13 Screw, -20 x 5/16 Socket Head Set 6 154226
D14 Handle, Carriage 1 157440
D15 Screw, 1/4-20 X  Pan Head Phillips 2 157523
D16 Label, MK USA 2 154334
D17 Screw, 1/4-20 X 1  Socket Head Cap 4 159336
E Assembly, Control Box, Fixed, Dual Switch 120V 1 158428
E1 Box, Fixed Dual Switch Control 1 158274
E2 Cover, Fixed Dual Switch Control Box 1 158276
E3 Screw, -20 x  Socket Head Cap 2 152587
E4 Washer,  Split Lock 2 152591
E5 Screw, 10-24 x 5/8 Self Tapping 6 153681
E6 Ammeter 120V 1 154489
E7 Switch, 30A Toggle 2 154491
E8 Receptacle, Flanged 15A / 125V 1 154473
E9 Cord, Power SOWA 12/3 Yellow 3’ 154494
E10 Connector, Cord  1 151307
E11 Receptacle, Flanged Twist-lock 20A / 125V 1 157375
E12 Transformer, Current 120 V AC 1 154490
E13 Screw, 6-32 x  Pan Head 2 153459
E14 Plug, Twist-lock, 125V / 20A 1 154556
E15 Wire Harness (not shown) 1 154715
E17 Cover, Toggle Switch 2 154301
EB Assembly, Control Box, Single Switch 120V 1 158430
EB1 Box, Single Switch Control 1 158385
EB2 Cover, Single Switch Control Box 1 158387
EB3 Screw, -20 x  Socket Head Cap 2 152587
EB4 Washer,  Split Lock 2 152591
EB5 Screw, 10-24 x 5/8 Self Tapping 6 153681
EB6 Ammeter 120V 1 154489

18 MANTA III
Revision 12/04, Effective Date December 6, 2004
19
MANTA III Revision 12/04, Effective Date December 6, 2004
MANTA III COMBO PARTS LIST(cont...)
EB7 Switch, 30A Toggle 1 154491
EB8 Cord, Power SOWA 12/3 Yellow 3’ 154494
EB9 Connector, Cord  1 151307
EB10 Receptacle, Flanged Twist-lock 20A / 125V 1 157375
EB11 Plug, Twist-lock, 125V / 20A 1 154556
EB12 Transformer, Current 120 V AC 1 154490
EB13 Screw, 6-32 x  Pan Head 2 153459
EB14 Wire Harness (not shown) 1 154715
EB16 Cover, Toggle Switch 1 154301
F1 Assembly, Column n/a
F1 Column 1 157444
F2 Rack,  x  x 24” Gear 1 158782
F3 Screw, 10-32 X  Socket Hd. Cap 4 157525
F4 Washer, #10 Split Lock 4 153684
F5 Screw, M22 x 1.25 Jack 1 157445
F6 Screw, 1/2-13 X 3  Hex Head Cap 2 154574
F7 Washer, 1/2 Split Lock 2 153524
F8 Washer, 1/2 SAE Flat 2 150924
G Assembly, M3 Vacuum Pump 120V 1 158530
G1 Pump, Vacuum 120V 1 154475
G2 Screw, 10-32 X  Slotted Truss Head 2 157526
G3 Hose, 3/8 I.D., Air 12” 154656
G4 Fitting,  FNPT 1 154617
G5 Gauge, Vacuum 1 154477
G6 Nipple,  NPT X Close Galvanized 4 152598
G7 Tee, 1/4 NPT Galvanized 2 154497
G8 Valve,  NPT X Petcock 1 154488
G9 Filter, Water 1 154476
G10 Bracket, Pump Hold Down 1 157446
G11 Screw, -20 x  Phil. Flat Head 2 157527
G12 Ferrel, Crimp 2 154660
G13 Fitting, 90°  Street 1 154615
GB Assembly, Vacuum Pump w/ Handle 120V 1 154741
GB1 Pump, Vacuum 120v 1 154475
GB2 Filter, Water 1 154476
GB3 Gauge, Vacuum 1 154477
GB4 Nipple, 1/4 MNPT X Close 3 152598
GB5 Fitting, 1/4 FNPT X 1/4 FNPT X 1/4 FNPT Tee 2 154497
GB6 Valve, 1/4” Pettcock 1 154488
GB7 Hose, 3/8 I.D. Air 6’ 154656
GB8 Coupler Body, 1/4 FNPT 1 154617
GB9 Fitting, 1/4 MNPT X 3/8 BARB 2 154659
GB10 Ferrell, Crimp 2 154660
GB11 Base, Vacuum Pump 1 154495
GB12 Handgrip, 3/4 X 4 9/16 Black 1 139949
GB13 Screw, 10-32 X 1/2 Phillips Pan Head Cap 4 151052
GB14 Foot, Rubber 4 154496
GB15 Screw, 1/4-20 X 3/4 Flat Head Phillips Cap 4 154657
GB16 Nut, 1/4-20 Hex 4 151893
H Assembly, Handle, Slip 1 n/a
H1 Hub, Slip Handle 1 157321
H2 Spoke, Slip Handle 1 157322
H3 Knob, Ball -20 Female 2 154486
H4 Screw, 1/4-20 X  Thumb 1 157432
H5 Screw, -20 X 1/4 Socket Head Set 2 157528

18 MANTA III
Revision 12/04, Effective Date December 6, 2004
19
MANTA III Revision 12/04, Effective Date December 6, 2004
MANTA III COMBO PARTS LIST(cont...)
K Assembly, Accessory Pack (not shown) 1 n/a
K1 Carton, Accessory Pack 1 157323
K2 Owner’s Manual, MK-Manta 3 Series Core Drill 1 161117
K3 Card, Warranty 1 155859
K4 MK Sell Sheet 1 155333
L Assembly, Motor, Core Bore CB748 1 n/a
L1 Motor, Core Bore CB748, Slip Clutch, 20A/120V
Supplied w/ wrench, water adapter and key
1 154628
LA Assembly, Motor, Milwaukee 4094 1 n/a
LA1 Motor, Milwaukee 4094, Shear Pin, 20A/120V 1 154633
LB Assembly, Motor, Milwaukee 4096 1 n/a
LB1 Motor, Milwaukee 4096, Slip Clutch, 20A/120V 1 155540
LD Assembly, Motor, Milwaukee 4004 1 n/a
LD1 Motor, Milwaukee 4004, Slip Clutch, 20A/120V 1 159263
LE Assembly, Motor, Milwaukee 4097-20 1 n/a
LE1 Motor, Milwaukee 4097-20, Slip Clutch, 15A/120V 1 159264
LF Assembly, Motor, Milwaukee 4090 1 n/a
LF1 Motor, Milwaukee 4090, Shear Pin, 15A/120V 1 155976
LJ Assembly, Motor, Eibenstock EBM 300/3 P 1 n/a
LJ1 Motor, Eibenstock EBM 300/3/P, Slip Clutch, 20A/120V 1 158754
M Assembly, ” Motor Mount Plate, Hybrid, Milwaukee 1 n/a
M1 Motor Mount Plate, Hybrid 1 158412
M2 Screw, 3/8-16 x 1 , Socket Hd. Cap 4 157529
M3 Key, 3/8 x 3/8 x 5 1 157520
M4 Screw, -20 x 1.0, Socket Hd. Cap 4 151049
MA Assembly, ” Motor Mount Plate, Hybrid, CB748 1 n/a
MA1 Motor Mount Plate, Hybrid 1 158412
MA2 Screw, 3/8-16 x 1 , Socket Hd. Cap 4 157529
MA3 Key, 3/8 x 3/8 x 5 1 157520
MA4 Screw, -28 x 1  , Socket Hd. Cap 4 154684
MB Assembly, ” Motor Mount Plate, Hybrid, Ebinstock 1 n/a
MB1 Motor Mount Plate, Hybrid 1 158412
MB2 Screw, 3/8-16 x 1 , Socket Hd. Cap 4 157529
MB3 Key, 3/8 x 3/8 x 5 1 157520
MB4 Screw, M8 x 1.25 x 25mm, Socket Hd. Cap 4 157530
N Assembly, 2”, Spacer Block Milwaukee (optional) 1 n/a
N Spacer Block, 2” Milwaukee 1 154721
N2 Screw, 3/8-16 x 3 , Socket Hd. Cap 4 161118
N3 Key, 3/8 x 3/8 x 5 1 157520

1315 Storm Parkway. Torrance, CA 90509-2803
1 [phone] FAX [phone]
MK Diamond Products, Inc.
PARA ORDENAR PARTES DE REPUESTO
Sírvase tener lista la siguiente información antes de llamar:
Número de serie de la sierra
número de modelo de la sierra
Dónde y cuando se compró la sierra
Número de la parte
Descripción de la parte
Todas las partes listadas se pueden pedir a través de su distribuidor autorizado o directamente a MK Diamond.
Si la parte no está en existencia local, llame al número de teléfono indicado abajo y pida el departmento de
atención al cliente. Para soporte técnio, llame al 1-800-474-5594 sin cargo. El pedido mínimo es de $25.00.
POLÍTICA DE DEVOLUCIÓN DE MERCANCÍA
En caso de que sea necesrio devolver algún producto que usted haya comprado a MK Diamond, sívase observar
lo siguiente:
Usted debe dirigirse a nuestro departamento de atención al cliente para recibir una aprobación de devolución
de mercanía. No se aceptará mercancía devuelta sin el correspondiente número de pagado hasta su destino.
Toda la mercancía devuelta deberá embarcarse con flete meses anteriores y estar en condiciones de poderse
vender como nueva. Se aplicará un cargo de 15% por reintegro al almacén.
HOW TO ORDER REPAIR PARTS
please have the following information ready before calling:
SERIAL NUMBER OF YOUR SAW
MODEL NUMBER OF SAW
WHERE PURCHASED AND WHEN
PART NUMBER
PART DESCRIPTION
all parts listed may be ordered from your local distributor or from mk diamond. If the part is not stocked
locally, call our toll free number listed below and ask for our customer service department. For technical
support call: 1 [phone]. There is a $25.00 minimum order.
RETURNED MERCHANDISE POLICY
Should you need to return any product you have purchased from MK Diamond, please observe the
following:
Our customer service department should be contacted for approval to return merchandise. Merchandise
will not be accepted without a RETURNED GOODS authorization number. All returned merchandise must be
shipped prepaid to destination. All returned merchandise must have been purchased within the previous 12
months and be in resalable condition. A restocking charge of 15% will be billed.
POUR COMMANDER LES PIÈCES DE RECHANGE
VEUILLEZ AVOIR LES INFORMATIONS SUIVANTES AVANT D’APPELER :
NUMÉRO DE SÉRIE DE LA SCIE
NUMÉRO DE MODÈLE DE LA SCIE
DATE ET LIEU D’ACHAT
RÉFÉRENCE
DESIGNATION DE LA PIÈCE
Toutes les pièces indiquées peuvent être commandées auprès de votre distributeur local ou auprès de MK
Diamond. Si la pièce n’est pas stockée localement, veuillez appeler notre numéro d’appel gratuit indiqué ci-
dessous et demander le service de la clientèle. Pour support technique, veuillez contacter le 1 (800) 474-
5594. Un minimum de commande 25,00 dollars US est de rigueur.
POLITIQUE DE RETOUR DE MARCHANDISES
Si vous vous trouvez dans l’obligation de retourner un produit dont vous avez fait l’achat à MK Diamond,
veuillez suivre les consignes suivantes:
Notre service de clientèle devrait être consulté pour approbation avant de retourner toute marchandise. La
marchandise ne sera en aucun cas acceptée sans numéro d’autorisation de Marchandises retournées. Toutes
les marchandises retournées doivent avoir fait l’objet de l’achat dans les 12 mois précédents et être en état
de revente. Une charge de restockage de 15% sera facturée.