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Related Manuals for Diamond Products CB744
Summary of Contents for Diamond Products CB744
- Page 1 CONCRETE DRILL PARTS LIST OPPERATORS MANUAL MODEL CB744 AUGUST 2019...
- Page 3 Original instructions (115V & 230V models) DIAMOND CORE DRILLING MACHINE CAUTION: Machine equipped with overheat thermal protection. When the thermal protection kicks in, always remove from the worpiece and run at no load for at least 3 minutes to allow motor to cool before returning to operation.
- Page 4 SPECIFICATIONS Model CB744 (115V) CB744 (230V) Power Input 3000W / 26.5A 3200W / 15A Voltage (See Nameplate) 115V~60Hz 230V~60Hz No Load Speeds min 385 / 530 / 975 / 1340 Rated Load Speeds min 225/ 300 / 565 / 780 Drilling Capacity 18"...
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Page 5: General Safety Instructions
GENERAL SAFETY INSTRUCTIONS WARNING Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference. The term "power tool" in the warnings refers to your mains-operated (corded) power tool. 1) Work area safety Keep work area clean and well lit. -
Page 6: Symbols Used In This Manual
If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards. 4) Power tool use and care Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed. -
Page 7: Drill Safety Warnings
Drill safety warnings • Use auxiliary handle(s), if supplied with the tool. Loss of control can cause personal injury. • Hold power tool by insulated gripping surfaces, when performing an operation where the cutting accessory may contact hidden wiring or its own cord. Cutting accessory contacting a "live" wire may make exposed metal parts of the power tool "live"... -
Page 8: Grounding Instructions
INTRODUCTION This machine is for the intended purpose of diamond core drilling of concrete, masonry, stone and similar materials. It must always be mounted on a drilling stand. This machine is for professional use only and only trained personnel may operate this machine. All other uses which are not for the intended purpose are prohibited. -
Page 9: Electrical Connection
Note: In Canada, the use of a temporary adapter is not permitted by the Canadian Electrical Code. METAL SCREW COVER OF GROUNDED OUTLET BOX GROUNDING PIN ADAPTER GROUNDING MEANS AA210 Note: In Canada, the use of a temporary adapter is not permitted by the Canadian Electrical Code. Electrical connection The network voltage must conform to the voltage indicated on the tool name plate. -
Page 10: Water Supply
OPERATING INSTRUCTIONS 1) MOUNTING THE CORE BIT CAUTION: Ensure that the threads of the spindle and the core bit match. Attempting to mount mismatched threads will result in damage to both threads. The spindle has two types of threads. The outside male thread is 1-1/4inch UNC, the inside female thread is 1/2 inch BSP. - Page 11 WARNING: Never allow water to enter the motor. It could lead to an electric shock. WARNING: Check all connections of the water feed system to ensure there are no leaks. Inspect hoses and other critical parts which could deteriorate. WARNING: The maximum water pressure should not exceed 70 psi (4 bar).
- Page 12 4)MOUNTING TO A DRILLING STAND (NOT INCLUDED). Warning: Do not attempt to mount to a rig that does not have a perfectly fitting mounting system. The motor has a standard four bolt pattern for attaching a mounting spacer. Use a mounting spacer suitable for the stand you are using to mount your drill motor to your stand.
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Page 13: Safety Clutch
CAUTION: The motor will be damaged if it is repeatedly overloaded or overheated. Always cool the motor by running at no load for a few minutes whenever it stops from either overheat or overload. 7) SAFETY CLUTCH This machine is equipped with a mechanical clutch to protect the operator and machine from excessive torque forces. - Page 14 control and spins, it will immediately unplug its own cable. ABOUT DIAMOND BITS The diamond impregnated segments in a wet type (sintered) diamond core bit operate on a principle of controlled erosion. The bond matrix holding the diamonds is continually worn away by abrasion with the work piece, exposing the harder diamonds to stand proud from the bond matrix.
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Page 15: Maintenance
minutes, then turn up the water to rinse the sand free. Repeat as needed. Another method is to drill into a cinder block. Repeat as needed. If that still does not work the only choice is to use a dressing stone. VIBRATION TROUBLESHOOTING If vibration occurs and it is not caused by embedded steel, stop drilling to find the cause and remedy. - Page 16 • Replace water seals as needed. • Replace the carbon brushes as needed • Change the gear oil about every 100 hours of operation • Replace the clutch discs and spring as needed. Each year perform a full mechanical inspection, cleaning and re-lubrication. CARBON BRUSH WEAR INDICATOR LAMP This machine is equipped with an LED lamp which will flash for 5 seconds when the machine is first switched on after the brushes are 80% exhausted, to remind the operator that the brushes need to be replaced.
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Page 17: Clutch Replacement
CLUTCH REPLACEMENT Support the unit in the nose-down position and remove the motor from the gearbox as follows. Remove the 4 socket headed screws. Separate the motor, together with the gear plate from the gearbox and lift away. Use an appropriate tool in the provided slots if separation is difficult. - Page 18 WIRING 115V MOTOR CARBON CARBON BLACK BLACK BRUSH BRUSH BLACK BLACK LED INDICATOR LIGHT SWITCH ELECTRONICS YELLOW 2A 1A UNIT YELLOW BLACK BLACK WHITE WHITE 230V MOTOR CARBON CARBON BLACK BLACK BRUSH BRUSH BLACK BLACK LED INDICATOR LIGHT ELECTRONICS UNIT BLACK BLACK SWITCH...
- Page 20 DP PART # DESCRIPTION 2709077 POWER SUPPLY CABLE UL-12AWG x 3C x 3.5M-SJTW (115V) 2709104 POWER SUPPLY CABLE UL-14A x 3C x 3.5M-SJTW (230V) 2700000 CORD ARMOR 6078432 EXTERNAL STAR WASHER M4 2709001 PANHEAD MACHINE SCREW M4 x 10 2709106 SWITCH 220V 2709725 SWITVH 110V...
- Page 21 DP PART # DESCRIPTION 2709029 BUSHING Ø15.9 x Ø22 x 4.7 2709030 INPUT SHAFT M1.75 x 13T x M1.5 x 12T 2709031 BALL BEARING 6200 2709032 NEEDLE BEARING HK 1010 2709033 INTERNAL CIRCLIP IS18 2709034 SLIDER GEAR-CD M1.75 x 36T 2709035 LAY GEAR M1.5 x 46T 2709036...
- Page 22 DP PART # DESCRIPTION 2709070 BULLS-EYE LEVEL 2709071 SELECTOR DISC 2709072 SELECTOR DISC 2709073 LED OVERLOAD LAMP 110V & 220V 2709074 LAMP COVER 2709075 EXTENSION SPACER 2903249 SOCKET CAP SCREW M8 x 80 2902221 SOCKET CAP SCREW M8 x 65 2709103 WRENCH M32 6078471...
- Page 23 Notes...
- Page 24 (1) year from the date of shipment to Customer. The responsibility of Diamond Products under this Warranty is limited to replacement or repair of defective parts at Diamond Products’ Elyria, Ohio...