PRO 5 PB/PBE/PBC
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10
3.2. Installing (removing) the mandrel and adjusting the clearance
Loosen the nut and use the 6 mm hex wrench to loosen the set screw (
1
, Fig. 3), and
insert the mandrel into the machine (
2
). Make sure that tool bits installed are not in
contact with the mandrel. Next, rotate the spoke handles to the right (
3
) by at least 10
turns until the mandrel engages with the machine completely. Then, tighten the set
screw
(
4
)
and check whether the spoke handles can be rotated in both directions
easily.
If the screw is too tight, readjust it. Finally, tighten the lock nut (
5
).
Fig. 3.
Installing the mandrel into the machine
If the expanding mandrel becomes loose causing vibrations of the tool bits during
machining, perform the above actions without removing the mandrel from the machine.
To remove the mandrel, loosen the nut and use the 6 mm hex wrench to loosen
the set
screw
(
1
,
Fig.
3)
by
at
least
one
turn.
Then,
rotate
the
spoke handles
to the left
to disengage the mandrel from the machine.
1
2
4
5
3
3
