Distar DDR Operation Manual page 17

destruction of the drill, which is extremely dangerous!
The liquid coolant consumption rate at drilling shall be at least as specified in Table 3.
Important! Liquid coolant should be supplied continuously. Failure to comply with this
requirement can affect the negative working capacity of the drill and lead to the destruction
of the drill, which is extremely dangerous!
Practice method of liquid coolant:
1. For drills with D12 landing mounting (drilling with using an electric drill), it is con-
sidered acceptable the fed of liquid coolant from the third side to the drilling zone. For this
purpose, you can use a hose, which is mounted on a water tap or a special cylinder which is
pressurized by a hand pump (not included in the drill fitting), which is mounted on a water tap
or a special cylinder which is pressurized by a hand pump (not included in the complete drill).
2. For drills with M14 landing mounting (drilling with using a manual angle grinder),
it is considered acceptable only the fed of liquid coolant inside drill. For this purpose, you
should use a special manual angle grinder, where the fed of liquid coolant is performed
through the shaft or with using a special adapter (which is not included in the complete drill).
The recommended rotation speed of the tool-spindle unit shaft and the power of the
drive of the equipment are given in Table 3, "Recommended drilling modes". Failure to comply
with this recommendation could have a negative impact on the working capacity of the drill!
For drilling, it is recommended to use a conductor template (not included in the com-
plete drill), which is connected to the material with claw flanges, suction cups or other means
to ensure its strong retention on the material to be processed. Drilling without use of a con-
ductor template can lead to destruction of a diamond drill, which is extremely dangerous!
Vibration and strikes are prohibited during work of a diamond drill. The regular feed
shall be smooth and without any jerks. To avoid jamming, it is necessary to use light rotation-
al motions (by swinging the drill from the vertical axis of the drill by 1-5 degrees – this will
provide an additional discharge of wet dust from the drilling zone.
Strikes and sharp increases in the drilling depth are prohibited during the work of a
diamond tool.
Prevent twisting and jamming of diamond tool, it can lead to the destruction of dia-
mond tool, which is extremely dangerous!
Excessive loading is not allowed. Failure to comply with this requirement can affect
the negative working capacity of the drill and lead to the destruction of the drill, which is
extremely dangerous!
Minimize pressure and angle of rotation of the drill when exiting from the hole.
Attention! Hold down the drill during complete perforation to prevent impact on the
supporting surface of the material to be processed. Failure to comply with this requirement
can affect the negative working capacity of the drill and lead to the destruction of the drill,
which is extremely dangerous!