Owner`s manual

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gear of mesh with the lead screw tightly when out in use.
a. IMPERIAL THREADS ON IMPERIAL LEADSCREW MACHINES OR
METRIC THREADS ON METEIC LEADSCREW MACHINES
For these threads it is recommended that the thread dial indicator be used this
allows the half nut of lead screw to be engaged at the end of each thread cutting pass,
provided that are reengaged in accordance with the indicator table mounted on the
left hand side of the apron .
b. IMPERIAL THREADS ON METRIC LEADSCREW MACHINES OR METRIC
THREADS ON IMPERIAL LEADSCREW MACHINES AND DIAMETRAL
PITCH, MODULE PITCH THREADS ON IMPERIAL OR METRIC
LEADSCREW MACHINES
For these threads the half nut is kept engaged throughout the cutting of any one
thread. This involves reversing the whole drive by means of the spindle forward
/reverse switch (No. 3 ) at each end of the thread cutting pass while at the same time
relieving or increasing the cut as required .
7.LATHE ALIGNMENT
When the lathe is installed and ready for use , it is recommened to check the
machine alignment before starting work .
Aligment and leveling should be checked regularly to ensure continued
accuracy.
(A) Headstock
If headstock appears that the alignment is not correct any more , proceed as
fallows :
Take a steel bar with a diameter of appr.50mm and a length of appr.200mm.
Span it in the chuck without using the center.
Then cut off a chip over a length of 150mm and measure the difference in A and
B . To correct a possible difference, loosen the screws (E,F) clamping the heastock on
the bed . Adjust the headstock with set screws (C,D) . Tighten all screws and repeat
the above procedure until all measurings tally. The lathe will be cutting correctly.