ADJUSTMENTS & OPERATION
Feed Rod and Leadscrew
Warning!
Only shift the gearbox levers when the spindle speed is less than 500 RPM
and the gearbox speed range lever is in neutral.
1. The leadscrew/feed rod lever (A) Fig.20 engages and disengages the leadscrew
and feed rods simultaneously. When moved up or down, the rotation of the lead
screw and feed rods are simultaneously reversed.
2. The gearbox high/low range lever (B) Fig.20 will put the gearbox in high range (H),
low range (L) or neutral (I).
Warning!
Make sure to loosen the carriage lock bolt (A) Fig.21 before any power feed
or threading operations. This carriage lock bolt is used to increase stability
when performing facing operations.
Gearbox Ratio Levers
Warning!
Only shift the gearbox levers when the spindle speed is less than 500 RPM
and the gearbox speed range lever is in neutral.
The gearbox has a series of levers used for controlling the feed rod and leadscrew
feed rates in relation to the spindle speed. Based on the threading and feed rate
chart, you can shift the gearbox to accomodate and large range of feed speeds.
1. The 3 gearbox range levers (A, B & C) Fig.22 which have multiple lettered positions,
when placed according to the threading chart and example shown in Fig.24, you
can quickly change the feed rate.
2. The example in Fig.24 shows the lathe set up for 3.5mm metric thread.
3. For threading, make sure the change gears (A) Fig.23 are set as shown in the
metric/imperial threading gear positions illustration (A) Fig.24.
4. In the metric thread chart (B) Fig.24, a combination of letters and numbers
appear next to the 3.5mm (LCR8Y), position levers in the corresponding positions
as shown in Fig.24.
FIGURE 20
FIGURE 24
FIGURE 21
FIGURE 22
FIGURE 23
