21
Increasing drilling accuracy
Comment
Use the following setting to
achieve a flush dowelled joint
a) Setting horizontal drilling unit
• Set the drilling distance (Z) of the
horizontal drilling unit to 8 mm or to
9.5 mm
• Give the machine a trial run
• Check drilling distance with pin (E6)
for bore holes with a 10-mm Ø, or
with straight pin (F2) for holes with
an 8-mm Ø and adjusting block (F1)
• Correct drilling distance (Z) if neces-
sary
b) Setting worktable to drilling dis-
tance
• Clamp adjusting pins (E6) in first and
last drill chucks
• Insert drilling head parallel to ruler
• Attach adjusting blocks (F1) to ad-
justing pins (E6)
Comment
If the drilling distance is to
be 8 or 9.5 mm, mount the
adjustment blocks with the
corresponding dimensions (16
or 19) against the ruler.
• Set worktable to a drilling distance
of approx. 50 mm according to the
scale
!
!
Working with MTZ.2880
F
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