Diamond Products CB700 Operation Manual
Diamond Products CB700 is a 3HP (2.2kW) core drill designed for coring operations up to 8" (203MM) in diameter. Its features include a variable speed setting, water system for dust control and cooling, and a mechanical clutch for safety. The CB700 is suitable for both wet and dry coring, and its versatility makes it ideal for a variety of applications.
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CORE DRILL OPERATIONS MANUAL DIAMOND PRODUCTS MODEL : CB700 SAFETY To maintain the operation safety, make sure to read and understand this instruction book BEFORE operating this equipment. SAFETY 1. When operating the drill, be sure to wear proper safety gear, such as safety glasses, dust mask, glove, and hearing protection. A hard hat is also recommended. 2. Never operate unless proper footing and balance is possible at all time. 3. Wear proper apparel. Do not wear loose clothing or accessories. Keep hair and body parts away from openings and moving parts. 4. Wet coring bits MUST be used with water. Flow should be kept at sufficient rate and volume. 5. Use ONLY diamond impregnated core bits with this drill. 6. Do not force the machine. Use the drill properly and as intended. 7. Anchor bolts should always be used to secure the base on a cracked, uneven or vertical surfaces. 8. Maintain alertness while operating the machine. attention, by the operator, may lead to serious injury. Failure to maintain 9. Do no operate the machine when you are tired or while under the influence of drugs, alcohol or any medication. 10. Use common sense when operating any power tool. 1 11. Keep work area clean and well lit. 12. Never operate this unit when flammable materials or vapors are present. Electrical devices produces sparks or arcs which can cause a fire or explosion. 13. Do not expose the drill to rain or wet conditions to minimize electric shock. 14. Do not obstruct motor air intake or outtake to maximize performance. 15. Before beginning work, familiarize self with the work site and its surrounding. Take notice of circumstances which may impede work or traffic, observe soil conditions (good bearing or not) and take measures to ensure safety (e.g. the shielding of road works from public traffic). 16. Take measures to ensure that the drill is in a safe and trouble-free condition to operate. Use the drill only when all protective devices (i.e. guards, noise absorbers, emergency-off devices) are in place and in working order. 17. A visual check of the machine must be made at least once a shift to ensure that early signs of problems are noticed. Any such indication (including changes in machine performance or behavior) must be reported to the appropriate supervisor. 18. In the case of a malfunction, stop the drill immediately, unplug and secure it. Fix the problem as soon as possible. 19. To stop and start the drill follow the operating instructions and observe any indicator lights. 20. Keep the drill out of reach of children. 2 21. Make sure power is in “OFF” position before plugging in power cord to prevent any accidental activation. 22. If cord/plug is damaged do not operate. 23. Plug should be of proper type to mate to outlet. Never modify the plug in any way. Adapter plugs should not be used either for grounded power tools. Power received must be as specified on the drill nameplate. 24. Be sure to connect the plug to a properly grounded receptacle to reduce the risk of electric shock. 25. To reduce the risk of electrical shock, we recommend the use of GFCI and to refer servicing to a qualified professional. Avoid body contact with earthed or grounded surfaces such as metal objects. 26. Before operating, be sure the activated drill will be of no danger to anyone. Check to make sure all adjusting key or wrench were removed. 27. When machine is plugged in do not leave it unattended. Unplug prior to servicing, when changing accessories, and when not in use. 28. Never carry machine by cord. Do not pull cord to unplug. Keep cord away from heat, sharp edges and oil. 29. When using an extension cord, make sure it is in good condition and heavy enough to carry the current drawn by the machine. Refer to the extension cord table in the “Electrical Specifications” section for the correct gauge depending on the desired cord length and the machine’s horsepower and voltage. 30. Service on the drill should only be performed by a qualified technician. 3 HEALTH WARNING 1. Some dust created by power sanding, sawing, grinding, drilling, and other construction activities contain chemicals known to cause cancer, birth defects or other reproductive harm. Some examples of these chemicals are: A. Lead from lead-based paints B. Crystalline silica from bricks, cement and other masonry products C. Arsenic and chromium from chemically-treated lumber 2. 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. 4 UNPACKING 1. Open the carton containing the drill motor. Remove the drill and place it on a flat, level working area. Be sure that the followings items are removed before discarding the carton: A. Size 36 Open box wrench B. Size 48 Open box wrench 5 SETUP NOTE: The drill motor should not be plugged in and the spindle should be static when following any of the following procedures! 1. Mounting the Drill Motor A. Attached to the drill body is a universal mounting block. Study the block and drill stand carriage mounting holes. If it is determined the block is not required, remove it so that the drill may mount properly to the carriage. B. First install the appropriate key size into the available key way. Next line up the mounting holes from the drill motor to the holes on the carriage. The screws must pass through the carriage first then into the motor body. C. Once the screw are tighten, look at the assembly from the side. Both the drill motor and carriage mounting face must sit flush against each other. D. The carriage must be properly adjusted to the drill stand column. Check that the drill motor is secure by shaking the motor using moderate force. No movement should be possible. If movement is felt independent from the column, the carriage needs to be adjusted. See the drill stand manual for proper adjustment instructions. 2. Installing a Core Bit A. Raise the mounted drill motor to the proper height. The core bit should be able to sit directly underneath the spindle. B. Apply grease to the spindle thread to prevent corrosion and easier core bit removal. C. If a copper washer or slip collar is available, slide it onto the spindle. 6 D. Lastly position the core bit directly underneath the spindle and screw it on. 3. Setting the Proper Spindle Speed A. Located on the side of the drill motor is a circular speed select knob. Loosen the knob by rotating it counter-clockwise. B. Slide the knob to the left for low speed (600RPM) or to the right for high speed (1200RPM) coring. C. After selecting the required speed, lock the knob by rotating it clockwise. 4. Attaching a Hose to the Water System A. Pre-attached to the swivel collar is a male quick-disconnect water fitting with a built water control valve. The swivel assemble allows a hose to attach to the drill motor from any angle rotated about the spindle axis. Water will be fed through the spindle and down the core bit. B. Attach a water hose with the proper female quick-disconnect fitting to the drill motor’s water inlet. C. Allow water to flow through the system to make sure flow is continuous and the rate is sufficient. Shut-off the flow by turning the valve on the swivel collar. 7 FEATURES 8 SPECIFICATIONS Model Spec CB700 VOLTAGE POWER SPEED PHASE APPLICABLE BIT DIAMETER WEIGHT 115V (60Hz) 3HP (2.2kW), 20A 600 ~ 1200 RPM 1 1" (25MM) ~ 8" (203MM) 48 LBS (21.8 KG) 9 OPERATION 1. Coring Operation A. Place water collecting ring in place as necessary. B. Make sure the drill stand is properly secured to the work surface. If not follow the instructions provided in the drill stand manual. C. Check that the spindle speed is at the correct setting. If not adjust as instructed in the “setup” section. NOTE: The motor must be OFF and the spindle must not be in motion when changing the speed setting. Failure to follow these conditions can result in gear or motor damage. D. Turn the water valve on the drill motor on. There must be sufficient flow of water to the core bit. E. Activate the drill and allow the spindle to achieve peak RPM before letting the bit engage the work surface. F. During the initial portion of the coring process, the bit may wander. Apply a light amount of force at first until the bit appears to have cored out a groove. G. While coring do not apply too much downward force. Refer to the motor load ammeter as reference. To achieve constant even and sufficient force, keep the yellow LED lit. Do not allow the red LED to become lit. WARNING: Warning do not core upwards! 10 H. When the coring process is complete, the material removed or inner core may become lodged inside the bit. Leave the drill running and raise the drill from the work surface. I. Turn off the drill and turn the water valve on the drill motor off. 11 MAINTENANCE WARNING: For your safety, before performing any maintenance on the drill turn OFF the power switch and UNPLUG the power cord. 1. General Rules A. Always clean the machine before performing any maintenance/repair. B. A clean machine makes visual inspection for problems easier to notice. 2. Steps to Follow When Cleaning A. Please do not use aggressive cleaners (i.e. containing solvents). Do not use high-pressure water jets, aggressive detergents or solutions and liquids with a temperature exceeding 86ºF! Use a fluff-free cloth only. B. For the sake of safety, no water/cleaning liquid/vapor may penetrate into the electric motor, connectors/plugs, switches, etc. Cover all apertures, holes in the housing, connectors or plugs, etc. or seal them with adhesive tape! C. Use a cloth which may be lightly moistened only for removing dust and dirt. Hard packed dirt can be removed with a soft brush. D. After cleaning, remove all covers and adhesive tape! All screws/nuts which you may have loosened must be tightened again! After wet cleaning, try the machine on a power outlet which is equipped with a power breaker (i.e. fault current circuit breaker). If the fault current circuit breaker cuts the power supply, the machine must be inspected by an authorized dealer prior to use! 12 3. Carbon Brush Replacement A. Unplug the drill motor before proceeding any further. B. Locate the carbon brush caps found near the air inlet of the motor housing. They are on opposing sides. Remove the caps using a flat screw driver. The brushes contact leads should pop out as soon as the caps are off; if not, use the screw driver to nudge them out. C. When installing the new brushes, make sure they fit snuggly into the slots. Do not modify the replacement brushes (i.e. file them down) or use non OEM brushes, as it may damage the armature and in doing so voids the manufacturer warranty. D. Perform steps one through three in reverse to reinstall the caps. Note do not over tighten the caps are they may be damaged. 4. Adjusting the Mechanical Clutch A. Unplug the drill motor before proceeding any further. B. If, while coring, the clutch slips when the ammeter only illuminates the green or yellow LED indicator, then the clutch nut needs to be tightened. C. To begin a special tool is needed to engage the clutch. Contact your nearest authorized distributor or service center for parts. D. Locate the four recessed socket head screws holding the gear housing together and remove them. 13 E. Gently pull the gear housing apart. Only a small separation is needed to fit two flat screw drivers into the housing’s gap. The screw drivers should be inserted in opposing directions. Gently apply an even amount of force on both tools to complete the housing separation. F. Using the supplied open box wrench, hold the spindle in place. G. Insert the torque wrench with a compatible clutch tool onto the gear housing clutch nut as shown below. Rotate the wrench clockwise until the gauge reads 20N-m . I. With the clutch nut properly tightened, reassemble the housing. To reassemble press the two halves of the housing together. Make sure the orientation and internal components mate correctly. Now sit the drill on the motor’s back side so the spindle faces upwards. Using a mallet lightly tap the housing closed. Every so often turn the spindle to guarantee the gears are meshing together instead of interfering. Force must be distributed evenly around the housing to keep the two halves level as they come together. J. Reattach the four screws to complete the gear housing assembly. 14 WIRING DIAGRAM 1. Electrical Specifications: 3HP (2.2kW) 115V 20A 600~1200 RPM 60Hz 1 Phase 2. Recommendations A. It is recommended that a 20 amp circuit be used while operating this drill machine. This will prevent any loss of power or interruption. B. Always plug the motor as close as possible to the power source while operating. This will allow you to receive optimum electricity. 3. Electrical Wiring Diagram 15 TROUBLESHOOTING Problem: Bit is jammed while coring. Possible Cause: Solution: Possible Cause: Solution: Debris is lodged between core and bit. Rotate bit in both directions using spanner to release debris then inspect bit. Drill stand is not secured to work surface. Reset base and secure properly using vacuum base or anchor. Diamond rims have worn away. Replace core bit. Problem: Coring speed has reduced. Possible Cause: Solution: Possible Cause: Solution: Possible Cause: Solution: Possible Cause: Solution: Bit has encountered rebar. Adjust feed pressure to avoid motor overload. Diamonds have glazed over. Dress diamond rim on bit and check water feed rate. Diamond rims have worn away. Replace core bit. New core bit. Core at a slow rate during first 2-3 coring cycles. Problem: Core bit appears to sway. Possible Cause: Solution: Possible Cause: Solution: Possible Cause: Solution: Shaft was been damaged. Replace shaft and check bearing arrangement. Bit is deformed or damaged. Replace core bit. Chips are attaching to the bit. Inspect core bit and increase water flow rate. Possible Cause: Solution: 16 EXPLODED VIEW CB700 PARTS LIST CB700 # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 ITEM Gear case Main shaft Seal 48x34x8 Bearing 6206ZZ/C2 Bearing 6206LLU Snap ring R62 Snap ring S30 Metal collar Brass collar 35x29x12 First gear Metal collar Snap ring S28 Shift ring Shift lever O-ring Metal collar Brass collar 28x22x9 Second gear Metal collar Snap ring S22 Bearing 6202Z O-ring 60x2.0 Water supply cover Snap ring S63 Water cock Bearing 6201Z First pinion Woodruff key 5x5x12 Snap ring Third gear QTY 1 1 2 1 1 1 1 2 1 1 1 1 1 1 1 2 1 1 1 1 2 2 1 1 1 3 1 1 1 1 PART NO. 6063050 6063051 6063052 6063053 6063054 6063055 6063056 6063057 6063058 6063059 6063060 6063061 6063062 6063063 6063064 6063065 6063066 6063067 6063068 6063069 6063070 6063071 6063072 6063073 6063074 6063075 6063076 6063077 6063078 6063079 PARTS LIST CB700 # 31 32 33 34 35 36 37 38 39 40 41 41-1 ITEM Second pinion Metal collar Forth gear Plate Friction plate Brass collar Fifth gear Disk spring 35.2x18.3x2.0 Metal collar 5T Fine U-nut Diaphragm Socket head cap screw M8x1.25x60L 41-2 Spring washer M8 ODx13.6 ODx1.8T 42 Speed change knob 43 Rubber washer 44 Plug 45 Baffle 46 Bearing 6201LLU 47 Armature 48 Bearing 6200ZZ 49 Filling ring 6200 50 O-ring 51 Field 52 Round head phillip screw cone point M5x85 53 Spring washer 5MM 54 Flat washer 5MM 55 Motor house QTY PART NO. 1 1 1 1 1 1 1 4 1 1 1 4 6063080 6063081 6063082 6063083 6063084 6063085 6063086 6063087 6063088 6063089 6063090 6063091 4 6063092 1 1 1 1 1 1 1 1 1 1 2 6063093 6063094 6063095 6063096 6063097 6063098 6063099 6063100 6063101 6063102 6063103 2 2 1 6063104 6063105 6063106 PARTS LIST CB700 # 56 56-1 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 ITEM Brush tube Brush tube screw M5x10 Carbon brushes (2) Brush cover Socket head cap screw M6x1.0x45 Spring washer M6 ODx10.5 ODx1.5T Washer 1/4x13x1 Electric power Cable cover Switch box with LED indicator Switch Switch cover Switch plate Flat head phillip screw cone point M3x4 (1/8x1/4) Seal 47.5x36x2 Cable 24cm Cable 8cm Earth cable Round head phillip screw flat point M4x0.7x6L Spanner 36 Spanner 48 Cooper screw 1/4 pipe thread T-shape key 10x10x105 Spacer block 15mm Socket head cap screw M8x20 QTY PART NO. 2 2 2 2 4 6063107 6063108 6063109 6063110 6063111 4 6063112 4 1 1 1 1 1 1 2 6063113 2704063 6063115 6063116 2704059 2704060 2704061 2704062 1 1 1 1 1 1 1 1 4 1 1 4 6063121 6063122 6063123 6063124 6063125 2704103 2704104 6063126 6063127 6063128 6063129 PARTS LIST CB700 # 80 81 82 83 84 85 ITEM Pin 5x15 O-ring 32x2 Cable plate Round head phillips screw - cone head M4x12 Plate Rubber tube QTY PART NO. 1 1 1 4 6063130 6063131 6063132 6063133 1 1 6063134 6063135 Please call us if for any reason you are having difficulty that cannot be resolved with the troubleshooting guide included in this manual. We would like to help. Give us a call at 1-800-321-5336 or e-mail us at [email protected] To better service our customers as expediently as possible, please make sure that you have the manufacturing serial number at hand before contacting us. DIAMOND PRODUCTS 333 Prospect Street • Elyria, OHIO 44035 • USA ">

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Key features
- 3HP (2.2kW) power
- Variable speed
- Water system
- Mechanical clutch
- 8" max core bit diameter
- 115V operation
Frequently asked questions
The CB700 can accommodate core bits with a maximum diameter of 8" (203MM).
The CB700 has a circular speed select knob located on the side of the drill motor. Loosen the knob by rotating it counter-clockwise, slide it to the left for low speed (600RPM) or to the right for high speed (1200RPM), then lock the knob by rotating it clockwise.
The CB700 is designed to be used only with diamond impregnated core bits.