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G D C 4   C O R E   D R I L L    

 

 

11 

General Maintenance 

Ø

 

Inspect machine and machine body connections. 

Ø

 

Keep machine clean and free of debris.  Do not forget to grease the drill spindle.   

Ø

 

Check for misalignment, binding and breakage of all moving parts.  If damaged, repair tool 
before use.   

Ø

 

Keep cutting tools sharp and clean.  Sharp bits are less likely to bind and are easier to 
control.  

Occasional Maintenance 

Ø

 

Have the tool serviced by a qualified service technician using identical replacement parts.   

o

 

Inspect/Change Spark Plug: 

o

 

After 100hrs of use, inspect and remove the carbon build up 
on the spark plugs. 

o

 

Check and adjust the spark plug gap to 0.6mm.   

o

 

Replace spark plug if necessary.  Ensure the 0.6mm gap is 
correct for a new plug.   

o

 

Change Gear Oil: 

1)  Change engine oil after 10 hours for a new machine (for engine break 

in).  After initial break in period, change oil at the 50 hour service 
mark.     

Chapter 

Summary of Contents for GCD4

Page 1: ...OPERATIONAL MANUAL MODEL GCD4 CORE DRILL MACHINE PORTABLE GAS DRILL USED BY HAND by BLUEROCK Tools Volume 1 0 ...

Page 2: ... all plastic bags away from children due to risk of suffocation WEEE Waste Electrical Electronic Equipment Note that parts of this machine should be disposed of as electrical electronic waste SLURRY DISPOSAL NOTE It is recommended to dispose of the drilling slurry the muddy dusty water material in an environmentally responsible manner The disposal of slurry directly into sewage systems sewers lake...

Page 3: ...SORIES FOR THIS MACHINE CAN BE FOUND IN BLUEROCK TOOLS ONLINE SHOP AT WWW BLUEROCKTOOLS COM OR FROM YOUR LOCAL RETAILER 5 OPERATIONS 6 PURPOSE 6 OPERATIONAL PRINCIPLES 6 MACHINE COMPONENTS 6 TRANSPORTING AND STORAGE OF THE MACHINE 7 RUNNING THE MACHINE USING THE HANDHELD DRILLING METHOD 7 INSTALLING CORING BITS 9 TROUBLESHOOTING 10 GENERAL MAINTENANCE 11 OCCASIONAL MAINTENANCE 11 PARTS LIST 12 BRE...

Page 4: ... be worn while using machine Dust mask must be worn while using this machine Read operational manual prior to use PRE OPERATIONAL SAFETY CHECKS Ø Examine the body of the machine and inspect for damage or defects Ø Inspect your core bit for damage correct tight connection to machine and no debris inside Ø Inspect the machine s watering system to ensure it will deliver a smooth flow of water Ø Check...

Page 5: ...hanging or adjusting cutting bits so as not to accidentally turn machine on Ø DO remove adjusting wrenches prior to turning the machine on Ø DO be mindful that power tools can expose an operator to vibrations transmitted trough contact with the machine Prolonged exposure can lead to medical issues which should be discussed with a medical professional Ø DO use a dust extraction system for cutting m...

Page 6: ...ure can damage machine and cutting bits Ø DO NOT depress throttle engaging clutch when starting the motor as you do not want the core bit to spin quickly while not held securely Ø DO NOT use this gas machine indoors Ø DO NOT smoke or allow flames around this gas machine HEALTH WARNINGS Ø Certain dust created by drilling contains chemicals known to cause cancer birth defects or other reproductive h...

Page 7: ...5H NGK MECHANICAL DATA Cutter Range 1 to 4 Max Diameter by Hand Cutting Speed of Core Bits 700 RPM Tool Holder Direct Arbor 1 1 4 7 UNC Spindle Clutch Yes Clutch Drum Type Assembly Water hose and Valve Yes Hand held capable Yes Item Weight 22 Lbs Included Accessories DESCRIPTION QTY Instruction Manual 1 Water Hose and Valve 1 Note UPON RECEIPT CHECK CAREFULLY TO ENSURE THAT THE MACHINE IS IN GOOD ...

Page 8: ... 1 25 Wet Coring Bit 1 5 Wet Coring Bit 1 75 Wet Coring Bit 2 Wet Coring Bit 2 5 Wet Coring Bit 3 Wet Coring Bit 3 5 Wet Coring Bit 4 Wet Coring Bit 1 Dry Coring Bit 1 25 Dry Coring Bit 1 5 Dry Coring Bit 1 75 Dry Coring Bit 2 Dry Coring Bit 2 5 Dry Coring Bit 2 75 Dry Coring Bit 3 Dry Coring Bit 3 5 Dry Coring Bit 4 Dry Coring Bit 1 1 4 7 UNC to 5 8 11 UNC Core Bit Adapter 10 Extension Rod 12 Ext...

Page 9: ... extremely dangerous situation OPERATIONAL PRINCIPLES Ø The main drilling shaft rotates in a forward clockwise direction The main drilling motor connects to the tool spindle to make contact with a surface and slowly bore a hole Ø These drills are ONLY to be used with diamond impregnated coring bits o When drilling with wet type bits the bit ends pulverizes the material and the water brings the mat...

Page 10: ...s the orientation of the machine in the work area o DO NOT use this item in an unstable position such as on a ladder leaning outside of center of gravity etc When using by hand these drills could bind up and personal injury could occur if not taking into account a very stable body position o Consider the work surface material condition strength density and rigidity These factors directly affect th...

Page 11: ...OFESSIONAL FOR ADVICE Ø Very slowly engage the cutting bit with the material surface by lightly engaging the bit with the material o NOTE During the initial stages of contact the bit may wander o NOTE If drilling and not using a guide a common way to start the hole uses a 30 degree angle to slightly cut into the material Once the bit has bored slightly into the material the user will slowly level ...

Page 12: ... throttle valve to enable the engine back to the idle state Ø Switch engine to off position Ø Turn water valve off Turn off main water supply as well INSTALLING CORING BITS Ø WARNING Core bits can be sharp and should only be handled with gloves so as not to cut the user during installation or removal Ø Check that the bits are not damaged o NOTE Coring bits that are damaged should not be used Ø Mak...

Page 13: ...feed pressure to prevent motor overload while cutting through rebar 2 Diamonds on bit have glazed over Deglaze bit or dress diamond rim on bit and check water flow rate 3 Diamonds on bit have worn away Replace core bit 4 New core bit Core at slow rate with new bits for 2 3 coring cycles 5 The safety clutch is slipping Inspect and assess clutch condition 6 DRY type drilling progress is prevented by...

Page 14: ...d and are easier to control Occasional Maintenance Ø Have the tool serviced by a qualified service technician using identical replacement parts o Inspect Change Spark Plug o After 100hrs of use inspect and remove the carbon build up on the spark plugs o Check and adjust the spark plug gap to 0 6mm o Replace spark plug if necessary Ensure the 0 6mm gap is correct for a new plug o Change Gear Oil 1 ...

Page 15: ...YJ2018090104 1 9 Inner hexagon screw M6x20 4 10 Inner hexagon screw M6x20 2 11 Gearbox BKQYJ2018090105 1 12 Baffle hexagon screw BKQYJ2018090106 1 13 Inner hexagon screw M6x15 2 14 O ring 16x3 1 1 15 1 4 Quick coupling BKQYJ2018090108 1 16 1 4 valve 1 17 1 4 water tube connector 1 18 Water collecting ring BKQYJ2018090109 1 19 TC Framework oil seal 35x50x8 2 20 Connection axle BKQYJ2018090110 1 21 ...

Page 16: ...G D C 4 C O R E D R I L L 13 Breakdown View Overview ...

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