Carriage/Cross Feed Lever; Half-Nut Lever And Inch Threading - Grizzly g4003g Owner's Manual

carriage/cross feed
lever
longitudinal and cross slide powered motions are
controlled by the carriage/cross feed lever. the
lever pivots through two stops that require moving
the lever left and right as well as up and down.
Moving this lever upward activates the automatic
longitudinal feed. Moving the lever down activates
the cross slide (figure 30).
figure 30. Carriage/cross feed lever in neutral
position.
-30-
half-nut lever and
inch threading
the half-nut lever clamps and releases the half-
nut, which clamps around the leadscrew (figure
31). the lever is only engaged while cutting
threads.
note: If the apron feed lever is engaged, the half-
nut lever is blocked from use; and when the half-
nut lever is engaged the apron lever is blocked
from use. If both levers were engaged at the same
time apron damage would occur.
After the carriage has been returned, the thread
dial tells you when to re-engage the half-nut and
resume threading (figure 31).
dial
half-nut
lever
figure 31. threading dial and half-nut lever.
When the cap screw is loosened, the thread dial
housing pivots so its gear can be engaged or
disengaged from the lead screw. When engaged,
the dial will turn when the lead screw and spindle
are turning.
Model g4003g (Mfg. since 4/08)
Cap screw