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Model G0740 (Mfg. Since 11/12)
Apron Threading Controls
The half nut lever engages the carriage with the
leadscrew, which moves the carriage and cutting
tool along the length of the workpiece for thread-
ing operations (see Figure 80).
Important: Make sure the feed selection lever
is in the disengaged (middle) position before
attempting to engage the half nut.
Figure 80. Apron threading controls.
Cross Slide
Disengaged
Feed Selection
Lever
Carriage
Engaged
Halfnut
Lever
Disengaged
Thread Dial
The numbers on the thread dial are used with the
thread dial chart to show when to engage the half
nut during inch threading. The thread dial gear
must be engaged with the leadscrew for this to
work. Loosen the knurled knob on the thread dial,
pivot the dial gear toward the leadscrew so that it
properly meshes with the leadscrew threads, then
re-tighten the knob, as shown Figure 81.
Figure 81. Thread dial engaged with the
leadscrew.
Dial Gear
Leadscrew
Knurled
Knob
When threading, we recommend using the
slowest speed possible and avoiding deep
cuts, so you are able to disengage the half
nut when required and prevent an apron
crash!
Feed Selection
Lever
Half Nut
Lever