9
B. Thread Tables
Thread table for a metric leadscrew
Thread table for an imperial leadscrew
7.3 Thread Cutting Operation
In order to obtain the desired thread, all the correct change gears must be installed in
strict accordance with the chart. Failure to do so will give incorrect threads.
Rotate the leadscrew by operating the feed/selector to any position and be sure the
feed selector handle is engaged. Operate the thread cutting engagement lever
downwards to engage with the leadscrew to obtain the longitudinal travel of the
carriage, i.e. the thread cutting feed. Make sure that the feed axis selector is
disengaged (at the neutral position) before operating the thread cutting engagement
lever as there is an interlock mechanism between the auto feeding and thread cutting
engagement. The direction of the thread can be chosen by turning the feed directing
Summary of Contents for Crusader VS
Page 7: ...7 6 2 Operation Symbols ...
Page 14: ...14 10 Parts List and Diagrams Bed Assembly 1 2 ...
Page 17: ...17 Bed Assembly 2 2 ...
Page 19: ...19 Headstock Assembly 1 3 ...