Indexable Cutting Insert Change; Adjusting The Milling Cutter: Adjustable Groove Cutter (Optional Accessories) - Mafell NFU 50 Manual De Instrucciones Original


Close the mobile guard 28 (Fig. 3) and press the
locking lever 19 (Fig. 2) downwards.

4.4 Indexable cutting insert change

Danger
Always pull the power plug before
making changes or adjustments.
Install and remove the cutters in
accordance with instructions in the
operating manual. Utmost caution
is mandatory!
Ensure clean clamping surfaces.
Observe the specified tightening
torques! The clamping screws must
be tightened only with the tools of
the same dimensions included in
delivery. No striking tools, levers,
extensions or other tools may be
used.
All blades must always be fitted in
order to prevent imbalance.
The milling head (scope of supply) is equipped with
12 interchangeable carbide indexable cutting inserts.
Cumbersome and time-consuming sharpening is not
possible as the carbide indexable cutting inserts can
only be turned or replaced when the blades are dull.
The adjustable groove cutter (optional accessories)
30 (Fig. 5) is equipped with 12 carbide indexable
cutting inserts 32.

Remove the tool from the machine (see 4.3 Tool
change, page 24).

Loosen the countersunk screws on the tool with
the wrench included in the supply.

Clean all parts and cutter chambers of the tool.

Turn the carbide indexable cutting inserts or
replace them with new carbide indexable cutting
inserts after they have been turned three times.

Fasten the turned or new indexable cutting
inserts with the countersunk screws and
retighten the screws with the torx screw driver
22 (Fig 7) with 4 Nm.
Aluminium tools may only be
deresinified with solvents which do
not corrode the aluminium.

Re-install the tool (see 4.3 Tool change, page
24).
4.5 Adjusting the milling cutter: Adjustable
groove cutter (optional accessories)
The adjustable groove cutter 30 (Fig. 5) is an
adjustable groove cutter with indexable cutting
inserts, which can be adjusted to milling widths
between 22 and 40 mm. Different spacers are
included with the adjustable groove cutter. These can
be used to realise different intermediate widths.
Follow the procedure below:

First compile the required adjustable groove
cutter width with the enclosed spacers (the
adjustable groove cutter without spacers has a
groove width of 22 mm).

Place the compiled spacer packet onto the pins
in the rear part of the adjustable groove cutter
(side without labelling).

Then join the front part of the adjustable groove
cutter 30 (Fig. 5) and the inserted spacer
packet. Place the spacers that are not required
onto the front part of the adjustable groove
cutter.

Now fasten both parts of the adjustable groove
cutter with the front flange of the adjustable
groove cutter and mount the entire adjustable
groove cutter onto the drive flange of the
NFU50.
The adjustment range specified on
the adjustable groove cutter may
on no account be exceeded.
Ensure that all the enclosed
spacers are fitted at all times.
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