Diamond Products CB515 Manual del usuario - Página 9

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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.

Ensure both the core bit and the machine spindle are clean. Any debris could cause excessive run-out of the

mounted core bit. Excessive run-out can cause premature failure of the core bit and/or a safety hazard.

Tighten the bit to the spindle using two wrenches.

Choosing the correct core bit for the job:

Ensure that the bit you are using is suitable for the material you are drilling. There are two main types of

diamond core bit:

-Wet bits (Always use water with wet bits)

-Dry bits

2) WATER SUPPLY

Water is a basic requirement for diamond core drilling. The water serves as a

Open

coolant to avoid the working surface at the tip of the bit from overheating.

Water Feed Valve

To connect the water supply. Attach the quick-release water coupling to a

Closed

water hose.

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).

Use a water collector with a wet vacuum to collect cooling water if nearby objects could be damaged by water.

WARNING: Never allow water to enter the motor. A perfectly functioning water collector set up must be

used for any drilling performed at an upward angle.

3) SELECTING SPEEDS

There are 2 speed ranges to suit the bit size and work piece hardness.

CAUTION: Never attempt to change gears on a running machine! Only

Release Button

adjust when the machine is at rest.

Select the desired gear range by pressing the release button and then turning

the gear selector either clockwise or counterclockwise into the desired gear. It

will usually be necessary to turn the spindle by hand a little to get it to shift all

Gear Selector

the way.