18
10.6
Steady rest
The steady rest (Figure 25) 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.
10.7
Setting the steady rest
1. Loosen three hex nuts (1, Figure 26).
2.
Loosen knurled screw (3, Figure 26) and open
the sliding fingers (2, Figure 26) 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 26). 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 re-milled.
10.8
Follow rest
The follow rest (Figure 27) 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
workpieces. 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.
10.9
Stand (optional)
A steel stand specially designed for this lathe is
available from JET (Figure 28). Contact your
distributor or JET to order.
Stand # 321375 for BDB-919 Lathe.
Stand # 321377 for BDB-929 Lathe.
Figure 25
Figure 26
Figure 27
Figure 28
Summary of Contents for 321378
Page 25: ...25 13 2 1 Drive Belt Assembly Exploded View...
Page 29: ...29 13 5 1 Electrical Exploded View...
Page 32: ...32 13 7 1 Gear Box Exploded View...
Page 35: ...35 13 8 1 Apron I Exploded View...
Page 38: ...38 13 10 2 Saddle and Cross Slide Exploded View...
Page 40: ...40 13 11 1 Compound Slide Exploded View...
Page 42: ...42 13 12 1 Tailstock Exploded View...
Page 46: ...46 13 15 1 BD 919 Bed Assembly Exploded View...
Page 48: ...48 13 16 1 BDB 929 Bed Assembly Exploded View...
Page 54: ...54 15 0 Speed and threading charts...
Page 56: ...56 427 New Sanford Road LaVergne Tennessee 37086 Phone 800 274 6848 www jettools com...
