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- Mark the surface of the work at the point where the cut is to end, i.e. the shoulder, using a
scriber or similar means, and move the saddle so that the cutting tool is directly opposite the
mark, then wind in the cross-slide so that the tool touches the surface of the work.
- Whilst carrying out these maneuvres, rotate the chuck by hand to ensure that nothing will come
into contact with it when turning takes place, i.e. there is adequate clearance between the saddle,
cross-slide, tool post or cutting tool and the chuck.
- When satisfied, retract the cutting tool and wind the saddle away from the headstock, then wind
the cutting tool up to the work, somewhere along the length to be cut, whilst rotating the work
by hand, using the chuck.
- Continue to advance the cutting tool slowly until it just touches the surface. Record this position
by zeroing the scale on the cross-slide, i.e. turn the movable scale until the tool is a short dis-
tance from the right hand edge of the work. Wind in the cross-slide again one full turn until the
zero marks again coincide (Fig. 3). IMPORTANT: If you go past the zero marks, back off
again at least one half of a turn, then slowly bring the marks back together. Whenever you use
the scale as an indicator to advance the cross-slide or compound slide, always use this procedure
to align the marks. This is to take into account backlash and other clearances in the gearing and
slides etc.
- Continue to turn the handle an amount equivalent to your desired depth of cut.
- NOTE: We recommend that for rough cutting you do not exceed 0,25mm as your depth of
cut.
- The setup is now complete to begin your cutting operation but before starting, check that the
position of the clutch for changing the manual and auto feeding is set to left (hand-symbol).
- Switch on the machine as described in chapter “Starting procedure” and slowly feed the cutting
tool into the work using the manual feed handle. Proceed until you reach the previously marked
line on the work, then retract the tool one or two complete turns on the cross-slide feed handle.
Wind the saddle back to the beginning, then wind the tool the same number of turns “in”, plus
the depth of desired cut, and proceed to cut once more.
- IMPORTANT: Your left hand should always be free in order to hit the emergency stop
switch should it become necessary.
SETTINGS AND ADJUSTMENTS
Occasionally it may be necessary to readjust various components in order to maintain optimum per-
formance. The adjustments that may be performed are the following:
A. Cross-slide adjustments
The cross-slide is mounted on a dovetail slide as shown in figure 4. Between the sloping surfaces on
one side of the dovetail, a jib strip is inserted which may be tightened against the dovetail under the
influence of three adjuster screws. The adjuster screws are located on the right hand side of the
slide, directly beneath the compound slide handle. In time, wear will occur on the mating surfaces
resulting in vibration. To adjust the jib strip, account for wear and ensure the slide moves evenly
and smoothly, proceed as follows:
1. Slacken off all lock nuts and screw in the adjuster screws evenly, i.e. use the same torque for
each screw. The slide should be held firmly. Test by trying to turn the handle but do not force it.
2. Screw out each adjuster screw by one quarter of a turn only and nip up the lock nuts.
3. Test again by turning the handle. The movement should be even and smooth along its complete
length.
4. If the movement is too slack, screw all adjusters “in” by one eight of a turn and try again. Simi-
larly, if the movement is too stiff, screw “out” the adjusters by one eight of a turn until the cor-
rect adjustment is attained.
5. Tighten all lock nuts taking care to ensure you do not move the adjuster screws whilst doing so.