EN
WWW.BORMANNTOOLS.COM
4
Application
Diamond drill, also called concrete drill is a new type of tool which can drill on RC, brick and stone, rock, other fireproof materials. It holds such characteristics
as drilling without dust, high efficiency, smooth hole wall and accurate size. The machine has automatic clutch system, power-off protection for overload, and
it is easy for carrying, safe and reliable. There are stepless speed variation and 2-speed gear shift for speed-adjustable diamond core drill. It can work with dif
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ferent sizes core drill bits and drill holes on hard or soft materials. Adjustable-speed motor is of, constant power, overload protection, stepless speed variation
function.
Operation
Attention:
Our company does not assume any responsibility because the machine is not solid or fixed safety facilities are not in appropriate place cause acci
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dent.
1. The fixation of expansion bolt: Drill a hole by impact drill in the set position, screw the expansion bolt, make sure it is tight, fix the diamond drill machine on
it, and adjust the four regulating screws to keep the drill machine from swinging.
2. The fixation of support rod : determine the drilling location, supporting rod, adjusting the length of the push rod, and adjust the fastening screws, so that the
drilling rig substructure full contact face, and ensure the drill bit and drill vertical face ,no swing.
3. Fix the drill bit, connect the power and water supply, move adjusting tools, switch on when the drill machine is no load, check the drill bit and sound, if
everything is fine, then open the water tap, the machine can start to drill when water flow from the drill bit.
4. Take it slow when at first, when the drill bit cut in the wall, change to normal speed.
5. Both mechanical and electronic protections exist in drill machine. When drilling, if the motor is working, while the drill bit is not moving, means the drill bit
need sharpened or feeding speed is too fast, please pull out the drill bit then re-feed. If the motor stop short when drilling, please return on the machine and
slow down the feed speed.
6. After using period of time, the abrasion of friction plate may cause slip. Please take the clutch gear out of gearbox and change friction plates to unified size,
tight the screws. Then put the gear back to gearbox (This step should be done by trained person).
Instruction of Shifting Gear
In order to improve the efficiency, some machines are designed with 2-speed gear shift, high speed(H speed) and low speed(L speed). H speed is for drilling
on soft material with small drill bit , L speed is for drilling on hard material with large drill bit. Shift when the machine stops or will stop. Shift in place. If the spin
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dle doesn’t rotate or there is some noise after starting up, the gear may not shift in place. Turn off the machine immediately, and then shift the gear to proper
place, rotate the spindle back and forth (easy to shift) at the same time till shift in place. Do not shift when the machine is full-speed operated, over load or
stuck.
Maintenance
Warning: Always and on principle pull the mains plug before beginning with works of maintenance or repairs.
Clean the machine with a dry or moist cleaning-rag and not with a jet of water, make sure the water does not go into the motor and switch box. Keep the ven
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tilation apertures clean, do not forget to clean the core bit thread and grease it, get all screws checked and tighten. Have your tool only repaired by qualified
personnel and only with original spare parts. Or else, it may cause damage to person or machine.
Carbon Brush
After you have used the machine for about 300 hours you should check the carbon brushes for wear and replace them if necessary. Like any other work on the
motor this must be done by an electrical specialist.
Notice: In order to constantly improve products, our company reserves the right
to change technical data without prior inform.
Technical Data
Voltage/Frequency
230V-50HZ
Input Power
4250W
No Load Speed
580/860RPM
Drill Capacity
255MM
