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SETTINGS AND ADJUSTMENTS
Occasionally, it may be necessary to readjust various components in order to
maintain optimum performance. The adjustments that may be performed are
as follows.
CROSS-SLIDE ADJUSTMENTS
The cross-slide is mounted on a dovetail slide, as shown in fig. 13. 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, or ’jib’
screws, mounted along its’ length.
The jib screws are to be found 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 a ‘sloppiness’ of action.
To adjust the jib strip so as to account for wear, and ensure the slide moves
evenly and smoothly, proceed as follows:
1. Slacken off all lock nuts and screw
in the jib 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 jib 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 eighth of a turn,
and re-try. Similarly, if the movement is too stiff, screw ‘out’ the adjusters by
one eighth of a turn until the correct adjustment is attained.
5. Tighten all lock nuts taking care to ensure you do not move the jib screws
whilst doing so.
6. When completed, retract the slide fully and apply oil to all mating surfaces
and the feed screw thread, then wind the slide back to its normal position.
CROSS-SLIDE FEED HANDLE
The cross slide feed should run smoothly and the scale must rotate with the
handle.
If any stiffness occurs it is probably the result of swarf lodging between the
mating surfaces. Undo the securing hex socket head screw securing the
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