Southbend South Bend 16 SPEED GEARHEAD LATHE SB1053 - Manual (Page 63)

For Machines Mfg. Since 3/11 16-Speed Gearhead Lathe
-61-
O P E R A T I O N
The chip drawer shown in Figure 96 catches
swarf and metal chips during the machining
process. It easily slides open to provide access to
swarf during cleanup.
Also, the chip drawer contains a screen that
allows run-off coolant to drain back into the
reservoir.
Chip Drawer 1 ⁄
4
or 3 ⁄
4
Fractional TPI
For TPI that have a 1 ⁄
4
or 3 ⁄
4
fraction, use position
1 on the thread dial (see Figure 94).
2 7 ⁄
8
TPI
The thread dial is not used for 2 7 ⁄
8
threading
or metric threading (see Figure 95). The half
nut must stay engaged with the leadscrew
throughout the entire threading operations.
Figure 96. Chip drawer.
Chip
Drawer
Figure 94. Position for 1 ⁄
4
or 3 ⁄
4
fractional TPI.
Position
1 Only 2¼,2¾,
3¼,3¾
TPI
Figure 95. Half nut stays engaged for 2 7 ⁄
8
TPI.
2 7 ⁄
8
Same as
Metric
Threads
Thread Dial
Not Used
If pulled out quickly and more than halfway,
the drawer could fall out and hit your legs and
feet, causing serious injury. Therefore, open
the drawer slowly and avoid opening it more
than halfway.