WOHLHAUPTER 248 Mode D'emploi page 12

English
– Insert holder
Insert holders are equipped with a slot.
The insert holders are fitted to the preci-
sion tool at a position along the slot to
suit the machining diameter required.
This is the preliminary adjustment.
Tighten the cap screw 9 applying a
torque of 2 Nm (17.7 in. lbs.) (figure 4).
d) Preliminary diameter adjustment
Example:
Fine boring tool 248 001 (249 001)
– Boring range: 15.9 to 18.5 mm
(.625" to .728"):
Before fixing takes place, move the
insert holder in the direction indicated by
the arrow (figure 7).
Small boring range
Ø 15,9 – 18,5 mm
(.625" – .728")
– Boring range:
17,5 to 20,1 mm (.689 to .791"):
Before fixing takes place, move the
insert holder in the direction indicated by
the arrow (figure 8).
Wide boring range
Ø 17.5 – 20.1 mm
(.689" – .791")
e) Final diameter setting
The chrome-plated dial
reading of the diameter setting. The dis-
tance of the adjustment is limited. Please
follow the sequence of operations for set-
ting the diameter as set out below (figure 9).
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figure 7
figure 8
7
gives an exact
To avoid damage to parts, never
use force when carrying out
adjustment!
1. Slacken cap screw
2. For the diameter setting, adjust the
tool by turning the dial
– on a tool setting device or
– by carrying out a trial drilling or
gauge cut on the machine.
One revolution of the dial is equivalent
to the adjusting pin (and hence also
the cutter on the tool) undergoing a
diameter adjustment of 0.2 mm (.01").
One division on the dial corresponds
to a diameter adjustment of 0.01 mm
(.0005"). Rotation clockwise produces
feed-in the diameter (figure 9).
7
2a) To readjust the tool (i.e. increase
diameter).
– Readjust the dial by the value requi-
red. The smallest value on the dial
will give a diameter adjustment of
0.01 mm (.0005"). Lower feed-in
values are possible.
or
2b) Setting the tool back (i.e. decrease
diameter).
– read off the value set on the tool
(figure 10a, example: no. 6 on dial)
a)
b)
figure 10
– turn the dial back (i.e. anti-clockwise)
approx. half of one full turn. Left turn
direction (figure 10b).
– set the new (smaller) value
(figure 10c, example: no. 5 on dial).
6
(figure 2/11).
7
either
figure 9
c)