Sealey DCD110V User manual

110V DIAMOND CORE DRILL
MODEL NO: DCD110V
Thank you for purchasing a Sealey product. Manufactured to a high standard, this product will, if used according to these
instructions, and properly maintained, give you years of trouble free performance.
IMPORTANT: PLEASE READ THESE INSTRUCTIONS CAREFULLY. NOTE THE SAFE OPERATIONAL REQUIREMENTS, WARNINGS & CAUTIONS. USE
THE PRODUCT CORRECTLY AND WITH CARE FOR THE PURPOSE FOR WHICH IT IS INTENDED. FAILURE TO DO SO MAY CAUSE DAMAGE AND/OR
PERSONAL INJURY AND WILL INVALIDATE THE WARRANTY. KEEP THESE INSTRUCTIONS SAFE FOR FUTURE USE.
1. SAFETY
1.1. ELECTRICAL SAFETY
WARNING! It is the responsibility of the owner and the operator to read, understand and comply with the following:
You must check all electrical products, before use, to ensure that they are safe. You must inspect power cables, plugs, sockets and
any other connectors for wear or damage. You must ensure that the risk of electric shock is minimised by the installation of appropriate
safety devices. A Residual Current Circuit Breaker (RCCB) should be incorporated in the main distribution board. We also recommend
that a Residual Current Device (RCD) is used. It is particularly important to use an RCD with portable products that are plugged into a
supply which is not protected by an RCCB. If in any doubt consult a qualified electrician. You may obtain a Residual Current Device by
contacting your Sealey stockist.
9You must also read and understand the following instructions concerning electrical
safety.
1.1.1. The Electricity at Work Act 1989 requires that all portable electrical appliances, if
used on business premises, are tested by a qualified electrician, using a Portable
Appliance Tester (PAT), at least once a year.
1.1.2. The Health & Safety at Work Act 1974 makes owners of electrical appliances
responsible for the safe condition of those appliances and the safety of the appliance
operators. If in any doubt about electrical safety, contact a qualified electrician.
9Ensure that the insulation on all cables and on the appliance is safe before connecting
it to the power supply.
9Ensure that cables are always protected against short circuit and overload.
9Regularly inspect power supply cables and plugs for wear or damage and check all
connections to ensure that none are loose.
9Ensure that the voltage marked on the appliance matches the power supply to be
used.
8DO NOT pull or carry the appliance by its power supply lead.
8DO NOT pull the plug from the socket by the power cable.
8DO NOT use worn or damaged cables, plugs or connectors. Immediately have any
faulty item repaired or replaced by a qualified electrician.
9Ensure the unit is correctly earthed via a three-pin 110V plug.
a) Connect the GREEN/YELLOW earth wire to the earth terminal ‘PE’.
b) Connect the BROWN live wire to the live terminal ‘L/+’.
c) Connect the BLUE neutral wire to the neutral terminal.
d) After wiring, check that there are no bare wires, that all wires have been correctly connected, that the cable outer insulation extends
past the cable restraint and that the restraint is tight.
1.2. GENERAL SAFETY
9Disconnect the drill from the mains power before changing accessories, servicing or performing any maintenance.
9Maintain drill in good condition. Check moving parts and alignment and keep drill bits sharp. If necessary use an authorised service
agent.
9Replace or repair damaged parts. Use recommended parts only. Unauthorised parts may be dangerous and will invalidate the
warranty.
9Wear approved safety eye protection with side shields and a dust mask if drilling generates dust. Rubber gloves are recommended
when using outdoors and safety gloves when drilling items such as steel, brick work etc.
9 Removeillttingclothing.Removeties,watches,rings,otherloosejewelleryandcontainlonghair.
9Use drill in an adequate working area for its function, keep area clean, tidy and free from unrelated materials and ensure adequate
lighting.
9Prevent body contact with grounded surfaces to avoid electric shock i.e. pipes, radiators, ranges, refrigerators etc.
9 Evaluateyourworkingareabeforeusingthedrilli.e.ceiling,oorsandenclosuresmaycontainhiddenelectricalwiresorwater 
piping.
9Maintain correct balance and footing.
9The supplementary handle grip should always be attached for use.
9Keep children and unauthorised persons away from the working area.
9Secure non stable work piece with a clamp, vice or other adequate holding device.
Original Language Version
© Jack Sealey Limited
Refer to
instructions
Wear eye
protection
Wear protective
gloves
Wear ear
protection
Wear safety
footwear
Wear protective
clothing
Wear a mask
DCD110V Issue 3 (3) 27/07/2020

9Avoid unintentional starting and ensure the lock-on button is disengaged before use.
9Use suitable detectors to determine if utility lines are hidden in the work area or contact local utility companies for assistance.
 Contactwithelectriclinescanleadtoreandelectricshock.Damagingagaslinecanleadtoexplosion.Penetratingawaterline
causes property damage and may cause electric shock.
9Hold the tool only by the insulated gripping surfaces when performing an operation where the cutting tool may contact hidden wiring
or its own cord. Contact with a “live” wire will also make the exposed metal parts of the power tool “live” and shock the operator.
9 Whenworkingwithmachine,alwaysholditrmlywithbothhandsandprovideforasecurestance.Thepowertoolisguidedmore
securely with both hands.
9 Alwayswaituntilthemachinehascometoacompletestopbeforeplacingitdown.Thetoolinsertcanjamandleadtolossof 
control of the power tool.
9Take protective measures when dust can develop during working that is harmful to one’s health, combustible or explosive.
9 Alwaysusetheauxiliaryhandlesuppliedwiththemachine.Lossofcontrolcancausepersonalinjury.
8DO NOT work materials containing asbestos. Asbestos is considered carcinogenic.
8DO NOT force the drill to achieve a task it was not designed to perform.
8DO NOToperatedrillwherethereareammableliquidsorgasses.
8DO NOT get the drill wet or use in damp or wet locations.
8DO NOToperatethedrillifanypartsaremissingorthedrillisdamagedasthismaycausefailureand/orpossiblepersonalinjury.
8DO NOToperatethedrillwhenyouaretired,undertheinuenceofalcohol,drugsorintoxicatingmedication.
8DO NOTcarrythedrillwithyourngeronthepowerswitch,orcarrybythepowercord,orleavethedrillrunningwhilstunattended.
8DO NOTover-reachandensuretheoorisnotslipperyandwearnonskidshoes.
8DO NOT hold unsecured work in your hand.
8DO NOT use the machine with a damaged cable. DO NOTtouchthedamagedcable,butturno󰀨thepowersupplyatsocket.
8DO NOTusethedrillwithouttheauxiliaryhandletted
9 Whennotinuse,switchdrillo󰀨,removeplugfrompowersupply,cleanthedrillandstoreinsafe,dry,childproofarea
1.3. DIAMOND CORE DRILL BIT SAFETY
WARNING! Once a core cutter is within the hole and cutting, it can snag or grab at any moment without warning. This can easily
harm your wrist or arm.
9 Whendrillingthroughoorsmakesuretheareabeneaththeooryouareworkingoniscordonedo󰀨andthatco-workersareaware
 ofwhatyouaredoing.Thecoreislikelytofallfromtheceilingwhenyouhavenisheddrilling.
9Check both the inside and outside of the core drill for damage, wear or debris before using it.
9Silica dust will be created when drilling concrete wear a mask.
9Diamond core drilling is the slowest method of cutting a hole. Have realistic expectations as to the time required for cutting.
2. INTRODUCTION
Manufactured using high quality components for performance and reliability. Lightweight and compact unit. Fitted with soft start, variable
speed and overload protection. Designed for use in construction and other applications when working with masonry and concrete. Supplied
with adaptor, water cooling kit and side handles. Can be used independently or with optional Model No. DCDST Diamond Core Drill Stand.
3. SPECIFICATION
Model No:.............................................................. DCD110V
Masonry Drilling Range:..................................... Ø18-160mm
Concrete Drilling Range:.................................... Ø18-130mm
Power Supply:.....................................................110V - 50Hz
Motor Power:...............................................................2300W
No Load Speed: ..................................................0 - 1900rpm
Borehole Depth: ......................................................... 380mm
Maximum Cutter Size:....................................Ø160 x 380mm
Adaptor: ....................................................1-1/4”UNC Thread
Optional Drill Stand: ..................................Model No. DCDST
Cable Length:................................................................. 3.5m
4. OPERATION
WARNING! Make sure there are no cables or pipes hidden in the wall. Never assume that work hasn’t been done by someone else
in the intended drilling area beforehand.
g.1
Original Language Version
© Jack Sealey Limited
Noise power............................................................<85dB(A)
Noise pressure.......................................................... 69dB(A)
Vibration................................................................... <2.5m/s²
Uncertainty................................................................. 1.5m/s²
DCD110V Issue 3 (3) 27/07/2020

4.1.  Choosethecorrectsizedrillfortheholethatyouwishtomake,rectifyingmistakesmaybedi󰀩cult.
Note: If the depth of the hole is longer than the drill bit you will need to withdraw the drill bit and chop out the core with a hammer and
bolster.
8DO NOTforcethedrillwhilstdrillinghoweveruselesspressurewhenyouarenearlynishedcuttingyourhole.
4.2. Make sure you have selected the correct type of cutting bit for the material you will be drilling into.
4.3. CONNECTING TO A WATER SUPPLY
9Make sure the water source that you are connecting to is clean and free from grit and other particulate.
9Make sure the supply you are connecting to is no more that 3 bar of pressure.
8DO NOT get the power supply or drill wet.
4.3.1. Attach the short reinforced suction hose to the collar above the chuck.
4.3.2. Connect water hose to the reinforced tube.
9Make sure that all water connections are secure before turning the water supply on.
5. MAINTENANCE
WARNING! Disconnect from mains supply before performing any maintenance.
5.1. Brushes should be replaced by a competent person. Contact your Sealey stockist for more information.
5.2. Remove the cutting bit, before storing.
5.3. Keep the tool clean.
5.4. Store in a dry, childproof location in its case.
6. TROUBLESHOOTING
FAULT SOLUTION
Overheating Material While Drilling There is not enough water reaching the drilling area.
Run water through the core at a high pressure.
Run water through the sides of the drill pointed at the drilling area.
Material/Drill Vibration, Resulting in Uneven Drill Holes Check your machine and rig for run out (if using a rig).
Make sure the machine is mounted correctly, if using a rig.
Make sure the core bit is tightly connected to the machine.
Make sure the material is held securely using clamps.
Dress the drill to expose a fresh layer of diamond to cut the material. Make 3-5
drill holes in an abrasive stone such as sandstone using plenty of water. Doing
this several times should be enough to wear away the metal carrier to expose a
fresh layer of diamond to cut the material.
Excessive Chipping With Diamond Core Drills Possible incorrect choice of diamond core drill due to a mismatch between the
bond of the segment and the material.
Check the rotation speed for the diameter of the core drill and the material.
Make sure the material is held securely using clamps.
Check the condition of the machine being used.
Make sure there is enough water in the drilling area.
Diamond Drill is Drilling Material Very Slowly This is often due to the “glazing” of the diamond segment, where the drill may
have been used at an incorrect speed and the tool has become overheated,
resulting in the metal bond that holds the diamond failing to wear away at the
correct rate to exposure new diamond crystals.
Use a Sharpening Block to dress the drill to expose a fresh layer of diamond to
cut the material. Make 3-5 drill holes in an abrasive stone such as sandstone
using plenty of water. Doing this several times should be enough to wear away the
metal carrier to expose a fresh layer of diamond to cut the material.
Check that the core plug or debris is not lodged inside the core drill.
AdjusttheRPMspeedandfeedrate.
Segment Loss When Core Drilling This is the most common issue we see with core drills. It usually caused by
overheating which results in a fracture at the point of the segment weld or a
collision caused by an unsecured workpiece.
Consider using a Water Feed to run water through the internal hole of the drill.
Checkthatasu󰀩cientrateofwaterisreachingthedrillingarea.
Make sure the material is held securely using clamps.
Check that the core plug or debris is not lodged inside the core drill.
Original Language Version
© Jack Sealey Limited DCD110V Issue 3 (3) 27/07/2020

Sealey Group, Kempson Way, Suffolk Business Park, Bury St Edmunds, Suffolk. IP32 7AR
01284 757500 01284 703534 [e-mail] www.sealey.co.uk
ENVIRONMENT PROTECTION
Recycle unwanted materials instead of disposing of them as waste. All tools, accessories and packaging should be sorted, taken to
a recycling centre and disposed of in a manner which is compatible with the environment. When the product becomes completely
unserviceable and requires disposal, drain any fluids (if applicable) into approved containers and dispose of the product and fluids
according to local regulations.
WEEE REGULATIONS
Dispose of this product at the end of its working life in compliance with the EU Directive on Waste Electrical and Electronic Equipment
(WEEE). When the product is no longer required, it must be disposed of in an environmentally protective way. Contact your local solid
waste authority for recycling information.
Note: It is our policy to continually improve products and as such we reserve the right to alter data, specifications and component parts without prior
notice.
Important: No Liability is accepted for incorrect use of this product.
Warranty: Guarantee is 12 months from purchase date, proof of which is required for any claim.
Diamond Drill Is Not Drilling or Cutting This is also usually associated with the “glazing” of the diamond tip.
Check the rotation speed for the diameter of the core drill and the material.
Use a Sharpening Block to dress the drill to expose a fresh layer of diamond to
cut the material. Make 3-5 drill holes in an abrasive stone such as sandstone
using plenty of water. Doing this several times should be enough to wear away
the metal carrier to expose a fresh layer of diamond to cut the material.
Increase the RPM speed.
Check that the core plug or debris is not lodged inside the core drill.
Possible incorrect choice of diamond core drill due to a mismatch between the
bond of the segment and the material.
Diamond Core Drill Not Lasting - Short Life Span Possible incorrect choice of diamond core drill due to a mismatch between the
bond of the segment and the material.
Checkthatasu󰀩cientrateofwaterisreachingthedrillingarea.
Check that the plug or debris is not lodged inside the core drill.
Consider using a Water Feed to run water through the internal hole of the drill.
Check the rotation speed for the diameter of the core drill and the material.
Make sure the material is held securely using clamps.
DCD110V Issue 3 (3) 27/07/2020
Original Language Version
© Jack Sealey Limited
WARNING! – Risk of Hand Arm Vibration Injury.
This tool may cause Hand Arm Vibration Syndrome if its use is not managed adequately.
ThistoolissubjecttothevibrationtestingsectionoftheMachineryDirective2006/42/EC.
This tool is to be operated in accordance with these instructions.
Measured vibration emission value (a): ......... <2.5 m/s²
Uncertainty value (k):...........................1.5 m/s²
Please note that the application of the tool to a sole specialist task may produce a different average vibration emission. We recommend that a
specific evaluation of the vibration emission is conducted prior to commencing with a specialist task.
A health and safety assessment by the user (or employer) will need to be carried out to determine the suitable duration of use for each tool.
NB: Stated Vibration Emission values are type-test values and are intended to be typical.
Whilst in use, the actual value will vary considerably from and depend on many factors.
Such factors include; the operator, the task and the inserted tool or consumable.
NB: ensure that the length of leader hoses is sufficient to allow unrestricted use, as this also helps to reduce vibration.
The state of maintenance of the tool itself is also an important factor, a poorly maintained tool will also increase the risk of Hand Arm Vibration
Syndrome.
Health surveillance.
Werecommendaprogrammeofhealthsurveillancetodetectearlysymptomsofvibrationinjurysothatmanagementprocedurescanbe
modified accordingly.
Personal protective equipment.
Wearenotawareofanypersonalprotectiveequipment(PPE)thatprovidesprotectionagainstvibrationinjurythatmayresultfromthe
uncontrolled use of this tool. We recommend a sufficient supply of clothing (including gloves) to enable the operator to remain warm and dry
and maintain good blood circulation in fingers etc. Please note that the most effective protection is prevention, please refer to the Correct Use
and Maintenance section in these instructions. Guidance relating to the management of hand arm vibration can be found on the HSC website
www.hse.gov.uk - Hand-Arm Vibration at Work.