MK Diamond MK-MANTA IV User Manual

Model MANTA IV

R

CORE DRILL

Owner’s Manual

Parts List &

Operating

Instructions

CAUTION

READ SAFETY

AND GENERAL

INSTRUCTIONS

CAREFULLY

BEFORE USING

please record the serial number of

your saw in this block.

SAW FOR THE

FIRST TIME.

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.

Manual Part No. 164588
Revision 08/06

MK-MANTA IV

Table of Contents

Safety Symbols and Denitions 2

Safety Messages 3

Damage Prevention Messages 3

Hazard Symbols 3

General Safety Instructions for the MANTA IV 4

For your Safety 4
Contents 4

Application for Intended Purpose 4
MANTA IV Core Drill Technical Data 5
Set Up and Operating Instructions 5

Electrical Connections 5

Water Connections 5

Overload Protection 5

Safety Clutch 6

Fastening the Drill Rig 6

Drilling 6

Deep Drilling 6

Drill Bits 6

Drill Bit Changing 6
Maintenance 7

Machine 7

Drill Stand 7

Noise Emission 7

In Case of Malfunction 8
California Proposition 65 Message 8
Troubleshooting 9
Warranty Information 10
Exploded Views and Parts List 11-13

Exploded Views 11

Parts List 13
Ordering Information 15
Return Materials Policy 15
Packaging Instructions 15
Authorized Service Centers 15

IMPORTANT NOTICE

Before placing equipment into operation, record the following information. As you will need it

when ordering parts or for customer service.

Serial Number: Model:

Manufacturer: Motor Model:

Address:

City: State: Zip:

Telephone Number:

2

Revision 08/06, Effective Date August 22, 2006

MANTA IV Core Drill

Safety Messages

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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.

Danger

WARNING

SAFETY SYMBOLS AND DEFINITIONS

You CAN be KILLED or SERIOUSLY injured if you don’t follow instructions.

Caution

CAUTION

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.

You CAN be injured if you don’t follow instructions.

Damage Prevention Messages

Other important messages that are designed to help prevent damage to your MANTA IV Core Drill, other
property, or the environment are preceded by the word notice.

No tice

Your MANTA IV Core Drill or other property could be damaged if you don’t follow instructions.

Hazard Symbols

Please read the instructions for use prior to operating the machine for the first time.

Warning Triangle

Wear Eye Protection

MANTA IV Core Drill

Wear Head Protection

Wear Breathing Protection

The Use of Ear Protection is Mandatory

Wear Safety Shoes

Wear Appropriate Clothing

Wear Protective Gloves

Revision 08/06, Effective Date August 22, 2006

3

General Safety Instructions for the MANTA IV Core Drill

For your safety!

These safety precautions should be followed at all times. Failure to follow these safety precautions could
result in injury to yourself and others.

This manual has been prepared to provide complete instructions for operation and maintenance of the MANTA IV
CORE DRILL. For additional instruction concerning motor operations and care refer to the motor manufacturers
instructions. Before using this equipment, ensure that the person operating this machine has read
and understands all instructions in this manual. Precaution is the best insurance against accidents. Read
and observe all safety precautions.

If the power cord gets damaged or cut during use, do not touch the live wires. When this happens pull the plug out
of the socket immediately. Never use the tool with a damaged cable.

When drilling in ceilings or walls make sure you will not cut through electrical mains, gas or water pipes. Use metal
detection devices if needed. Prior to start of your work, make sure to determine the exact drilling position so you do
not drill on walls that have electrical connections.
If drilling through ceilings, secure the piece of material that will be cut out because it might fall downward.

The tool must not be used in rainy or wet conditions.

DO NOT operate this machine unless you have read and understood this operator’s manual.
DO NOT leave this machine unattended while the motor is running.
DO NOT work on this machine while the motor is running.
DO NOT operate this machine when you are tired or fatigued.
DO NOT operate the machine if you are uncertain of how to run the machine.
DO NOT use damaged equipment.
DO NOT operate this machine in the vicinity of anything that is flammable. Sparks could cause a fire or an explosion.
DO NOT operate this machine unless you are specifically trained to do so.
DO NOT lay power cords in or near the water.
DO NOT operate this machine while using drugs or alcohol.
DO NOT use this machine standing on a ladder.
DO NOT drill into materials that contain asbestos.
DO NOT touch rotating parts.
DO NOT allow anybody under 16 years of age run the machine.

Modifications to this tool are prohibited.
If the machine stops for any reason, switch it off to avoid any sudden starts.
This machine has to go through visual inspection by a specialist on regular intervals.
When using water as coolant, DO NOT allow water to get into the motor.
Overhead drilling is allow only when suitable safety measures are taken (water collection)
Stop working if water starts dripping from overrunning bore hole. Take machine to be serviced.
If machine breaks down do not turn it on if the drill bit can be turned.
Wear eye, breathing, ear and head protection.

Contents

The carton box contains the following items:

• Diamond Core Drill • Rig

• Ball Valve • Water Connector

• GFCI protective switch • User Manual

• Warranty Card

Application for Intended Purpose

• The diamond core drill is intended for professional use and may be used only by instructed personnel.

• The tool may be used only for wet cutting of concrete stone and masonry with an appropriate drill bit.

• The tool needs to be mounted before use.

4

Revision 08/06, Effective Date August 22, 2006

MANTA IV Core Drill

MANTA IV Core Drill Technical Data

Technical data for the MANTA IV is listed in TABLE 1.

Set Up and Operating Instructions

Electrical Connections

For protection purposes the machine can only be operated when used with a GFCI. The machine is
standard equipped with a GFCI switch in the cord which allows connecting the unit direct to a grounded
socket.

Diamond Drilling Unit MANTA IV
Nominal Voltage 110/120 V ~
Rated Current 18 Amp.
Frequency 40-60 Hz
No-Load Speed 700 rpm
Max. Drilling Diameter 6 inch.
Collet 1 1/4” UNC
Net Weight About 15.5 kg

TABLE 1

Attention! The GFCI protective switch must not come in contact with water.

GFCI protective switches must not be used to switch the tool ON and OFF.
Check for proper function by pressing the TEST button before starting your work.

Use only three-wire extension cord with ground wire of sufficient gage. The usage of a smaller wire could
lead to excessive overheating of the motor and the cable.

Extension Cord Minimum Gage for Length

Volts Total Length of Cord in Feet

120 V 25 50 100 150

AWG AWG AWG AWG

14

12 Not Recommended

TABLE 2

Water Connections

Connect the tool to the water supply system or a water pressure vessel.

Attention! The maximum water pressure should not be more than 43 psi. Always make sure that the
machine runs with enough water, as the seals can be damaged when running dry. This could lead to
leakage of water into the gearbox housing.

Overload Protection

The MANTA IV is equipped with a mechanical and electronic overload protection. This is designed to
protect the operator, the motor and the drill bit.

Mechanical: If the drill bit is suddenly blocked, a clutch will slip to disengage the bit from the motor.
Electronic: In case of overload due to a large feed force, the motor will be automatically switched off.
After discharge, switch OFF and ON again and drilling can be continued.

MANTA IV Core Drill

Revision 08/06, Effective Date August 22, 2006

5

Set Up Instructions (cont...)

Safety Clutch

The slip clutch should absorb shock and excessive stress. It is the drill’s aid and not an absolute protection;
therefore, you have to drill carefully. In order to keep in good condition, the clutch should slip for a very
short time (max. 2 seconds) in each case. After excessive wearing, the clutch can be readjusted by an
authorized service shop.

Fastening the Drill Rig

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. 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 segments.

Drilling

Adjust the flow of water with the ball valve to fully flush any excess material out of the bore hole.
If mud is depositing around the bore hole, increase the water flow.
In case the drill bit does not cut properly, use a grinding stone to sharpen it.
Make sure the drill bit does not vibrate.
Advance the tool according to bit diameter and machine power.

In case the drill bit gets jammed do not try to release it by switching the tool ON and OFF. Switch the tool
OFF immediately and remove the drill bit using an appropriate open-end wrench. Pull the tool out from the
hole with caution.

Deep Drilling

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.

Drill Bits

The diamond drill bits with a 1-1/4” UNC female thread can be screwed directly on the working spindle.
Always use drill bits that are appropriate for the material you will be drilling. You can extend the life of your
machine by using drill bits that are not damaged or deformed. Ensure that enough diamond is exposed in
every segment of the drill bit in order to make the drilling more effective.

Drill Bit Changing

The drill bit has a right-hand thread. Use an open-end wrench SW 32 to hold the spindle in place.
Never hit the drill bit in order to remove it as the machine will be damaged.
If you want to remove the drill bit in an easier way, use grease in the drill bit thread.
Also, for easy removal of drill bit, a copper ring can be placed between the spindle and the drill bit.

6

Revision 08/06, Effective Date August 22, 2006

MANTA IV Core Drill

MAINTENANCE

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WARNING

Machine:

All repairs are to be performed by qualified and experienced personnel.
Due to its design, the machine requires a minimum of care and maintenance.
Follow the steps below to maintain your machine in good working conditions.

• Clean the machine after every use.

• Grease the drill bit thread on a regular basis.

• Make sure that the ventilation slits are clean and open.

• Make sure that water does not get into the motor during the cleaning process.

• Replace the gear oil after the first 150 hours of operation to increase the life of the tool.

• After 200 hours of operation, make sure to replace the carbon brushes. This needs to be done by a
trained professional.

• The following components need to be checked in a quarterly basis: power cord, switch and plug.

Drill Stand:

• Always keep the drill stand and drill support clean. Pay special attention to the gear and the 4 sliding
pieces in the holder of the machine.

• In order to allow free movement of the pinion shaft, keep well lubricated.

If the position of the holder has changed, it can be readjusted as follows:

Unplug the machine from its power source before performing any maintenance or repairs.

(1)

(1)

Noise Emission

The A-rated acoustic pressure level of this machine is typically less than 70dB (A).
The level of acoustic pressure on a work site could exceed 85 dB (A). In cases when noise exceeds 85 dB
(A) it is necessary to wear ear protection!

• Loosen both Allen screws (1) using a 5 mm. Hexagon wrench

• Adjust the two positioning screws (2) with a screwdriver.

• Tighten the Allen screws (1) and check whether the holder moves
smoothly.

(2)

(2)

Hand and arm vibration is typically less than 8.2 ft/s2.
The level of noise emission is measured after EN 50 144.

MANTA IV Core Drill

Revision 08/06, Effective Date August 22, 2006

7

MAINTENANCE (cont...)

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In Case of Malfunction

In case of malfunctions switch the machine OFF and pull the plug from the power source. Any repairs on
the electric parts of the machine are to be performed by a trained professional.

California Proposition 65 Message:

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

WARNING

Some examples of these chemicals are:

• Lead, from lead-based paints

• Crystalline silica, from bricks and cement and other masonry products and

• Arsenic and chromium, from chemically treated lumber

For further information, consult the following sources:

http://www.osha-slc.gov/SLTC/silicacrystalline/index.html
http://www.oehha.org/prop65/out_of_date/6022kLstA.html

contain chemicals known [to the State of California] to cause cancer, birth defects or other
reproductive harm.

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.

8

Revision 08/06, Effective Date August 22, 2006

MANTA IV Core Drill

TROUBLESHOOTING

PROBLEM WHAT TO DO? INDICATION CAUSE SOLUTION/RECOMMENDATIONS

Low
penetration
rate under
prevailing
drilling
parameters

1. Check uid

return.

2. Check motor
speed range

3. Check bit wear

Fluid not muddy.
Evidence of steel
cuttings

Bit worn out. Replace with new bit

Diamond without

exposure. (ush with

matrix)

Face of bit plugged with
cuttings.

Face of bit covered with
steel. Steel cuttings
stick to bit face.

Wearing of
diamonds.

Drilling rebar Adjust drilling parameters to

recommendations for rebar.

Speed not correct for the
bit size used

Insufcient bit load Increase bit load

Rotate with high RPM on
rebar

Loose material at bottom
of hole.

Not enough uid

pumped. Cuttings burnt
to matrix. Diamonds
prevented from cutting.

Steel cuttings stick to bit
face. Diamonds
prevented from cutting.

Bit load too low Increase bit load

Bit speed too high Use lower speed: Increase bit load

See recommended speeds

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 at low RPM in a
concrete block 3/8” deep max.

Increase water ow rate.

Clean bit face by drilling in
concrete block.
Reduce RPM.

Heavy wear
at Steel Tube

No return of

uid

Bit Stuck 1. Try to raise bit,

Shear Pin Fail 1. Stop rotation

Check where uid

is leaking.

if impossible then,

2. Stop rotation

2. Raise bit.

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 ID or OD and
crown ID or OD

Drill impacted to stall at
lower speeds

Worn or open guide
ways on cradle. Bore­hole is getting undulated

Protruding steel. pindle
is offset. Bit out of true.

Bit is deformed Replace bit

Poor cleaning of
abrasive cuttings.

Crown clearance worn
out.

Adjust guidance on carriage.

Adjust guidance on carriage
Nicks or dirt on ounting faces

Improve ushing.

Replace bit

If leaking can be tolerated, continue
drilling with increaded 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

TABLE 3.

MANTA IV Core Drill

Revision 08/06, Effective Date August 22, 2006

9

Warranty Information

If within one (1) year from the date of purchase, this MK Diamond drill
fails due to a defect in material or workmanship, MK will repair it, free
of charge, by returning the unit to the dealer where it was purchased.
This warranty DOES NOT cover normal wear or damage resulting from
operator abuse. In no event shall MK Diamond Products, Inc. be liable
for consequential damages arising out of the failure of any product if
operating improperly. Selected components such as motors/engines
are excluded from this warranty and are subject to the manufacturer’s
warranty. Each manufacturer carries its own warranty conditions which
are listed on the literature accompanying the motor/engine at the time
of purchase. MK Diamond Products may act as a warranty station
for the motor/engine repairs based on individual agreement with the
manufacturer. This warranty is in lieu of all other warranties expressed or
implied.

10

Revision 08/06, Effective Date August 22, 2006

MANTA IV Core Drill

EXPLODED VIEW MANTA IV CORE DRILL

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MANTA IV Core Drill

Revision 08/06, Effective Date August 22, 2006

11

MANTA IV CORE DRILL EXPLODED VIEW

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12

Revision 08/06, Effective Date August 22, 2006

MANTA IV Core Drill

MANTA IV CORE DRILL PARTS LIST

PARTS LIST:

INDEX DESCRIPTION ITEM NO. MK NO.

1 Rotor Complete 73631100 164447
2 Bearing Seal 73320315 164448
3 Ball Bearing See 100 579 80410021 164449
4 Bearing Ring 80420160 164450
5 C-Clip 80200748 164451
6 Field, 110 Volt 73511150 164452
7 Screw 4.2x16 80201292 164453
8 Motor Housing 73511200 164454

9 Cap 80900189 164455
10 Screw Replaces 050.0112 80201267 164295
11 Carbon Brush Holder 80201199 164283
12 Spring Disk 34 80201385 164456
13 Screw CM4x12
14 Carbon Brush Replaces 8070019 80700040 160724
15
16 Switch, ETA 80600157 164459
17 Cable Fitting 80600174 164460
18 Condenser-SEE #80500014 80500010 164479
19 Connecting Lead, 110 Volt for EBM 250/2P 73533262 164461
20 Transmission Bearing Plate 7B334610 164462
21 Bearing Replaces 80410101 107 832 164463
22 Locking Ring 80201351 164464
23
24
25
26 Screw 80201200 164468
27 O-Ring 83000092 164469
28 Needle Sleeve Replaces 050.0161 80420110 164302
29
30
31
32
33 Intermediate Shaft 1 7B334490 164474
34 Thrust Washer 7B334499 164475
35 Clutch Washer 73331499 164476
36
37
38
39 Spring Washer 80200716 160338
40
41
42
43 Spindle 73430420 164482
44 Parallel Key, Hardened 73430496 164483
45 Bearing 80410151 164484
46
47
48
49 Bearing Replaces 050.0221 80410130 164488
50

Switch Box 73511630 164458

Shaft Seal 83000042 164465
Protective Grounding Connection 80601189 164466
Washer 80200752 164467

Fitting Key 80200600 164470
Intermediate Shaft 2 73311500 164471
Idler Gear 73311470 164472
Clutch Complete 7B334493 164473

Clutch Wheel 7B334550 164477
Disk 7332L499 164478
Driving Washer 73331496 164166

Nut, Hexagon 8m10 x 1 80201007 164069
Transmission Case 7B334400 164480
Bearing 80410020 164481

Rotary Shaft Seal 83000072 164485
Shaft Seal 83000076 164486
Rotary Shaft Seal 83000162 164487

Fitting Washer 80200507 164489

80201180 164457

MANTA IV Core Drill

Revision 08/06, Effective Date August 22, 2006

13

MANTA IV CORE DRILL PARTS LIST (cont...)

51 Spindle Wheel 73311430 164490
52
53 Tapping Screw 80201432 164492
54 Notched Pin 5x16 80200580 164493
55 Ball Valve, Mini 83000143 164494
56 Valve Ring-#52662&65205 #9 2126 0140 & 9 2126 0120 251 648 162852
57 Water Valve Replaces 83000124 256 573 164495
58
59 Air Guiding Ring 73511141 164497

202 Handle Base 796UN740 164498
203
204
205
206 Pin 80200627 164502
209
210 Bushing 796UN763 164504
211 Bushing Cap 796UN765 164505
212 Knob 85000158 164506
213
214
215
216 Set Screw 80200758 164510
217 Pinion 796UN730 164511
218 SCREW 80201147 164512
219
221 Base 796UN886 164514
222 Hexagon Screw 80201118 164515
223
224
227 Column 79620753 164518
228 Handle for Drill Stand 796UN816 164519
229
230
231

Snap Ring 80201323 164491

O-Ring 83000037 164496

Arm 796UN746 164499
Knob 85000193 164500
Spring 85000157 164501

Carriage 796UN792 164503

Clamping Piece 796UN779 164507
Screw 80201121 164508
Bushing 796UN770 164509

Lock Washer 80201309 164513

Nut 80201014 164516
Washer 80201381 164517

Screw 80201148 164520
SCREW, CYLINDER 80201156 164521
Screw 80201114 164522

14

Revision 08/06, Effective Date August 22, 2006

MANTA IV Core Drill

ORDERING & RETURN INSTRUCTIONS

ORDERING INFORMATION

You may order MK Diamond products through your local MK Diamond distributor or, you may order direct from
MK Diamond.

NOTE: There is a $25.00 minimum order when ordering direct from MK Diamond. All purchases must be made
using VISA or Master Card.

When ordering direct from MK Diamond, please have the following information ready before calling:

• The Model Number of the saw

• The Serial Number of the saw

• Where the saw was purchased and when

• The Part Number for the part(s) being ordered

• The Part Description for the part(s) being ordered

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.

RETURN MATERIALS POLICY

To expedite the service relative to the return of a product purchased through MK Diamond, please observe the
following:

NOTE: When returning all items, they must have been purchased within the previous twelve (12) months.

• Have the Model Number of the saw

• Have the Serial Number of the saw

• Have the location of where the saw was purchased

• Have the date when the saw was purchased

• Contact Customer Service for approval to return the item(s)

• Obtain a Returned Goods Number (RGA) authorizing the return

• Follow the packaging instructions in the following section

• Ensure your item(s) are prepaid to the destination

For returned items, call toll free to – 800 421-5830 or 310 539-5221 and ask for Customer Service. For technical
questions, call – 800 474-5594 or 310 257-2845.

PACKAGING INSTRUCTIONS

• Remove the Blade guard and Support Angle Assembly

• Dry the saw before shipping

• When packing, include the following: Core Drill and accessories.

• Package the unit in its original container or one of comparable size (do not ship the unit partially exposed)

• Ensure all parts are secured in the packaging to prevent moving

AUTHORIZED SERVICE CENTERS

For quicker repair time, you may contact MK Diamond Customer Service, toll free, at 800 421-5830 or 310 539­5221 for the Authorized Service Center closest too you or visit our web site at www.mkdiamond.com.
For technical questions, call – 800 474-5594.

MANTA IV Core Drill

Revision 08/06, Effective Date August 22, 2006

15

Model MANTA IV Core Drill

R

Owner’s Manual
Parts List &
Operating
Instructions

MK Diamond Products, Inc.

1315 Storm Parkway. Torrance, CA 90509-2803
1 [phone] FAX [phone]

Part No. 164588
Revision 08/06