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Sintered bits, also known as wet type, are much longer lasting but require operator knowledge
for best results. Water is absolutely always required with sintered bits. The bit is impregnated
with many layers of diamond in its metal matrix. As the matrix (bond) wears, new diamonds are
exposed. If the bit becomes glazed, it can be resharpened by dressing with an appropriate
alumina oxide or silicon carbide dressing stick. There are many variables with sintered diamond
core bits, such as diamond grade and type, diamond grit size, bond type, bond hardness,
and bit wall thickness. Consult with your diamond core bit supplier for the best bit for your
application. Tiles vary widely in hardness. Granite and porcelain are especially hard.
2. Water Supply
CAUTION: Never use this machine without water feed. Running dry will overheat and destroy its
spindle water seals.
Water is a basic requirement for diamond core drilling. The water serves as a coolant to avoid
the working surface at the tip of the bit from overheating. When the diamond bit becomes
overheated, even the diamonds break down. The most frequent cause of diamond drill
damage is drilling without enough coolant water.
Water should always be used to cool and lubricate the bit and to flush out abrasive particles
formed while drilling.
To connect the water supply. Attach the quick-release water coupling to a water hose. Use
the water feed valve to adjust water flow as
needed.
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).
Use the water collector with a wet vacuum to collect cooling water if nearby objects could be
damaged by water.
Water Collector
Mount the water collector device to the base using the
hand knob. Attach the hose of a wet-type vacuum cleaner
to the vacuum port. The water collector also incorporates a
centering aid pointer. When the pointer is opened against
the spring tension, it indicates the exact center of cut. When
released, it automatically returns to the stowed position.
Water Valve
Quick-Release
Water Coupling
Open
Closed
Spring-Loaded Centering Aid
Open position
Содержание TC100
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