BUG-O Systems PBM-2000 - Manual (Page 12)

12
HOW TO CHANGE INSERTS
SAFETY WARNING: UNPLUG PBM-2000 FROM POWER SUPPLY BEFORE INSPECTING OR
REPLACING ANY INSERTS!
Machine PBM-2000 is equipped with a double milling head, containing twelve cermetallic inserts. Recom-
mended PBM-2000 inserts are only made for this machine. In case of average quality construction steel,
life expectancy of those inserts is around 492 running ft. (150 running meters) per each side of inserts and
depends on user experience. Before you replace inserts for new ones make sure that all four sides of each
insert were used. Take the Housing (9) off the machine. To do this, undo two levers (22). It is normally not
necessary to take both Milling Heads (25) off the Spindle (23). Using Allen wrench s3 (63) undo screws
(28) and remove inserts.
When changing inserts make sure that all inserts newly placed in the milling head are installed square
and are pushed as far back (into the holder) as possible. Before pushing new inserts into the milling head
always remove all swarfs. Drawing No. 3 shows how inserts should overlap each other. Make sure that the
necessary gap of about .008'' (0.2 mm) is always made.
If both milling heads were removed and then replaced on the main shaft, make sure that they are installed
in the right direction and that tips of each milling head are shifted relative to each other for smoother work. If
the width of cut is small then swap all inserts according to drawing No 4, thus extending their life even longer.
0.008 - 0.019" (0.2-0.3 mm)