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Function and handling
34
01.00|ROTA THWplus |en
NOTICE
The chuck piston (item 3) must not be moved so long as the jaw
change key (item 90) is located in one of the jaw-change bolts
(item 8) for the chuck.
Risk of damage to the chuck.
NOTICE
The mechanical system of the chuck is opened when the protec-
tion sleeve (item 4) is changed. No chips may penetrate into the
mechanical system of the chuck. If no protection sleeve is in-
stalled in the chuck, then the chuck must not be actuated and
the chuck piston (item 5) must not be moved!
Risk of damage to the chuck.
CAUTION
Risk of crushing due to mechanical system of the chuck being
open when the protection sleeve is being changed.
Do not reach into the open mechanical system of the chuck!
Wear protective gloves.
Base jaw position
A marking line between the jaw guides is milled on the face side of
the chuck (see drawing
). This marking line is the
positioning aid for the base jaws or top jaws. The outermost base
jaw or monoblock position is reached when the front face of the
base jaw or the unsplit top jaw agrees with the marking line in the
jaw change position (chuck open).
It is vital that this jaw position is adhered to so that all teeth are
engaged for the force transmission from the wedge bars to the
base jaws or top jaws.
Change or supplement of jaws
Jaws for highest repeatability must be bored and ground in the
chuck under clamping pressure.
• When boring and grinding it is important that the boring ring or
the boring bolts are clamped
by the top jaws
– and not by the
base jaws. Keep base and top jaws screwed together for later
tasks.
8.3
8.4
Содержание ROTA THW plus 165-43
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