Jet BD-920W Operating Instructions And Parts Manual page 17

Steady Rest
The steady rest (Figure 26) serves as a support for
shafts on the free tailstock end. For many
operations, the tailstock cannot be used as it
obstructs the turning tool or drilling tool, and
therefore, must be removed from the machine.
The steady rest, which functions as an end support,
ensures chatter-free operation. The steady rest is
mounted on the bedways and is secured from
below with a locking plate. The sliding fingers
require continuous lubrication at the contact points
to prevent premature wear.
Setting the Steady Rest
1. Loosen three hex nuts (1, Figure 27).
2.
Loosen knurled screw (3, Figure 27) and open
the sliding fingers (2, Figure 27) until the steady
rest can be moved with its fingers around the
workpiece. Secure the steady rest in position.
3.
Tighten knurled screws so that fingers are snug
but not tight against the workpiece. Tighten
three nuts (1, Figure 27). Lubricate the sliding
points with machine oil.
4.
When, after prolonged operation, the jaws
show wear, the tips of the fingers may be filed
or remilled.
Follow Rest
The follow rest (Figure 28) is mounted on the
saddle and follows the movement of the turning
tool. Only two sliding fingers are required. The
place of the third finger is taken by the turning tool.
The follow rest is used for turning operations on
long, slender workpiece. It prevents flexing of the
workpiece under pressure from the turning tool.
Set the fingers snug to the workpiece but not overly
tight. Lubricate the fingers during operation to
prevent premature wear.
17
Figure 26
Figure 27
Figure 28