ADJUSTMENTS & OPERATION
Feed and Thread Selection
To set the desired feed rate and thread selection, look at the charts in
Fig’s.4 & 6 and determine the feed rate desired in relation to the thread to
be cut. Once you have determined the job at hand, place the selectors (A
& B) Fig.15 in the appropriate positions.
If Metric Threads are desired, change gears must be installed as shown in
chart Fig.5 and as described below.
Change gears
To obtain imperial or metric threads the proper change gears must be
installed inside the left side cover. Unscrew cover lock knob to gain access
to the left side of the headstock.
Before changing gears, determine the thread pitch desired and look at
which gear configuration is needed. See Thread charts as reference.
Before trying to remove a gear, all the gears need to be distanced from
each in order to be removed. To distance the gears from each other,
unscrew cap screw (A) Fig.16 which secures the pivot bracket (B). This will
allow you to lower the center gear assembly. Now unscrew special lock
screw (C) and slide the center gears off the pivot bracket (B). Now all the
gears are distanced and ready to be changed.
To replace the top gear (A) Fig 17, remove “C” clip (B) which holds it in
place. Replace with appropriate gear and secure with “C” clip (B).
To replace the bottom gear (C), remove cap screw and washer (D).
Replace with appropriate gear and secure it using the same cap screw and
washer (D) removed previously.
The rear middle gear with 127T (E) does not get interchanged but the front
middle gear (F) does. To replace the front middle gear (F), remove the
retaining plate (G). Replace with appropriate gear and secure with
retaining plate (G).
Once the change gears are in place, slide middle gears (E & F) back onto
the pivot bracket until it snug against the bottom gear (C), secure with
special lock screw (H) and make sure the retaining plate (G) is in place
before securing middle gears. Raise the middle gears assembly upwards
until it is snug with the top gear (A) and secure pivot bracket cap screw (A
& B) Fig.16. Close the side cover and lock it using the same lock knob
unscrewed previously.
FIGURE 15
FIGURE 16
FIGURE 17
