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TRAK Machine Tools
Southwestern Industries, Inc.
TRAK TRL Lathe, ProtoTRAK RLX CNC Safety, Installation, Maintenance, Service & Parts List
2.20 Mounting of an Buck Zero Set Chuck- RX Lathe
WARNING!
The Buck chuck requires a certain amount of torque to be properly mounted to the faceplate.
Please use the following chart to ensure safe operation and check the torque occasionally.
Improper installation of the chuck could result in injury or death. The 12” chuck sold from SWI
will come with a special wrench if installed in the field to adjust the chuck to the required
specifications.
Chuck Model
Mounting Bolt
Torque (foot pound)
8”
M10x1.5P
31.8 ft/lb
12”
M16x2P
137.4 ft/lb
The 1630HSRX lathe has an Buck Zero Set spindle and requires a chuck of this type. Use the following
procedure to mount this style chuck. This chuck is also used on the 1630RX, 1845RX and 2470RX lathes.
Bolt the chuck adapter plate to the spindle with (4) M10 X 50 SHCS. The key on the spindle orientates the
adaptor.
Then bolt the chuck to the adaptor plate with (3) M8 x 70 SHCS. The chucks SWI provides are self-aligning
and need no adjustment.
Tools required;
Magnetic indicator base with a 0.0001” reading indicator
Cam lock wrench
Chuck wrench
Allen wrench 3/8”
Allen wrench 5/16”
Alignment bar
Lift for chuck
Tool post, tool holder and turning tool with insert
Procedure:
Note
: this procedure needs to be performed after the spindle taper test
1.
On lathes with gears, put in neutral for ease of spinning chuck.
2.
Clean the face and outside taper of the spindle
3.
Clean the face and inside taper of the adapter plate
4.
Verify the cam lock studs are set evenly and at the correct location. The groove on cam the lock
stud should line up with adapter plate.
5.
Install the adapter plate onto the spindle
a.
Snug the cam locks one at a time.
b.
Once all 6 cam locks are adjusted, continue around tightening all cam locks
c.
Continue around tightening the cam locks until no further movement of the cam locks is
detected
d.
Check to verify the mark on the cam lock is between the marks on the spindle. See photo 1.
e.
Verify there is no gap between the rear of the adapter plate and the face of the spindle.
