General Operating Instructions; Tool Changing; General Safety Points; Milling Head Adjustment - Axminster SIEG SC6 User Manual

Warning. Do not operate the mill in any function unless the head clamping lever is
!
tightened.

TOOL CHANGING

Note. The taper socket in the spindle mandrel does not have a 'drive flat' and all
including the drill chuck is secured and driven by the taper lock and the draw bar.
Make sure the power is switched off or better still remove the power from the machine.
Locate and put to hand the 19mm A/F spanner and the tommy bar. Remove the Draw Bar Cover.
Hold the quill immovable by inserting the tommy bar into the quill hold pocket and loosen the
draw bar. Unscrew two or three turns and then strike sharply with a hammer (preferably a copper
face, to prevent the head of the draw bar peining over) this will break the lock between the tool
and the spindle tapers .
Unscrew the draw bar from the tool. Ensure the tool is supported, i.e. will not fall onto the
workpiece/table et al. When it is free put the tool carefully aside, remove the draw bar, check the
thread, check the taper and the thread of the new tool are clean and undamaged, introduce the
new tool into the taper, re-insert the draw bar and screw into the top of the tool.
Screw in the draw bar finger tight. Hold the quill immovable and tighten with the spanner. DO NOT
OVERTIGHTEN. Replace the draw bar cover.
Remove all tooling and reconnect the machine. Ensure the tool path is clear, switch on, and check
that the tool is correctly seated, is running true etc. If all is O.K, proceed.
Milling (all cases)
Along the longitudinal
Axis (X)
Along the Traverse Axis (Y)
Milling or Drilling Vertically
(Z)

Milling head adjustment

The Milling Head is mounted over a dovetail section. In order to maintain the 'tightness' of the fit;
between the sloping surface of the component and its mating surface, on the right hand side, a
gybe strip has been inserted. To adjust the gybe strip, use the supplied allen key and spanner,
release the lock nuts and screw the gybe strip grubscrews clockwise to compensate for any slack-
ness or anti-clockwise to loosen the movement. Check, using the rise and fall drive feed handles,
that the head moves smoothly, If not, repeat the adjustments until the movement is smooth and
tight over the whole of the travel.
Ensure the workpiece is securely clamped to the table.
Ensure that the quill is locked in position before
milling is commenced. Ensure the traverse slide lock
is tightened.
Ensure that the quill is locked in position before milling is
commenced. Ensure the worktable lock is tightened.
Ensure the traverse slide and the worktable locks are
tightened.
43

GENERAL OPERATING INSTRUCTIONS

tooling,