Sharp 1118H Operations Manual & Parts List page 19

Place lever "G" (Figure 38) in center position and engage lead screw nut "J" (Figure 40),
by moving ball handled lever "H" (Figure 40) clockwise. Set two carriage stops "M" (Figure
39) approximately 1/2" from both ends of carriage. Loosen screw "K" (Figure 39) to make
area location of stops. Loosen lock screw "N" (Figure 39) and turn stop screw "L" (Figure 39)
to make fine adjustment. With threading tool away from work toward operator, make a trial
run with the carriage. Pick up the exact relation between the tool and the shoulder or end of
the thread by using the tool post slide. Run carriage to the right, checking the stop. Make
adjustments so tool will clear end of work by 1/4".
Figure 38-Headstock and Gearbox
※ CAUTION： ： ： ： LOCK CARRIAGE STOPS SECURELY BEFORE STARTING
TO CUT THE THREADS. DO NOT RELEASE CARRIAGE
NUT "J" UNTIL THREADING OPERATION IS COMPLETED.
G
Figure 40-Thread Length Control
Figure 39-Thread Length Control
H
17
K
N
L
M
J