E&OE
© 2020 Baumr-AG
41
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. 12. 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, to account for wear and ensure the
slide moves evenly and smoothly, proceed as follows:
38. 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.
39. Screw out each jib screw by one quarter of a turn ONLY, and nip up the lock nuts
40. Test again, by turning the handle. The movement should be even and smooth along its complete length.
41. 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.
42. Tighten all lock nuts taking care to ensure you do not move the jib screws whilst doing so.
43. 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 handle. Remove the handle and pull off the collar with the scale taking great
care to retain the small spring plate which sits in a groove beneath the collar.
Clean the assembly and reassemble in reverse order. It will be necessary to hold the spring plate in place with a
small screwdriver, or similar tool, and pushing down on it to allow the collar to be correctly located on to the
shaft.
Compound Slide Adjustments
Compound slide adjustments are made in the same way as those for the cross-slide. The jib screws are to be
found on the left-hand side of the slide, i.e. facing the front of the lathe.
NOTE
: It is important that the cross-slide and compound slide adjustments are correctly carried out and that
there is no 'sloppiness' of action. Any maladjustments will have a serious effect on the quality of your work, as
they will all be transferred to the tool tip. It is vital that there is as little movement of the tool as possible.
