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TRAK Machine Tools
Southwestern Industries, Inc.
TRAK TRL Lathe, ProtoTRAK RLX CNC Safety, Installation, Maintenance, Service & Parts List
See Machine Tool & Setup, Section 4.1
X gib too tight or loose
See Gib Adjustment
,
Section 5.2.1
Loose bearing problem
Looseness in the spindle bearings. Adjust spindle preload.
Ball screw misalignment,
See Mechanical Drive Train (X, Z), Section 4.2. See
Spindle Bearing Preload
,
Section 5.1.17
Poor Thread Finish
Use Service Code 510 to verify the encounter count
matches the RPM selected on the Pendant
3.2.2 Turning Diameters Out of Round
Parts are not round within .0004” TIR for 2470, .0006” TIR for the 1630RX and 1845RX, and
0.0002” for the 1630HSRX. Runout for the spindle is best measured by using a .0001” dial indicator
and mounting to the inside taper of the spindle. Rotate the spindle and measure the indicator
movement.
NOTE
: The typical geared head engine lathe is not capable of more precise diameters. Careful
adjustments to this turning machine will insure to maintain this accuracy. Better accuracy should
not be expected from a lathe of this class.
Perform the following service code and procedures:
Possible Cause
Check This
Tooling problem
Improper tooling, workpiece not properly supported.
See Machine Tool & Setup, Section 4.1
Loose bearing problem
Looseness in the spindle bearings. See Mechanical Drive Train (X, Z),
Section 4.2. Spindle bearing not preloaded correctly. Reseat bearing and
preload. See Adjust Spindle Bearing Preload, Section 5.1.17
3.2.3 Cutting Taper
Parts are considered to be cutting on a taper if there is a difference in diameter of more than .0008”
over 6 inches. This is best measured by using a .0001” micrometer.
Possible Cause
Check This
Machine set-up problem
Machine not leveled properly
See Leveling - Section 2.9
Tooling problem
Improper tooling; Work piece not properly supported. Use steady rest or
follow rest, reduce overhang from chuck headstock or tailstock.
Looseness in the gib or
misalignment of ball screw
Gib adjustment.
See Gib Adjustment - Section 5.2.1
See Z Ball screw Alignment - Section 5.1.15
Loose bearing problem
Looseness in the spindle bearings.
See Mechanical Drive Train (X, Z) - 4.2
See Spindle Bearing Preload - Section 5.1.17
Headstock and/or tailstock
not aligned
See Adjust Headstock for Taper - Section 5.1.16
To adjust tailstock from side to side, adjust grub screw. See Section
5.1.18
3.2.4 Parts Have Incorrect Dimensions
Parts are being machined with dimensions that are different than those programmed. Typical
accuracy expectations should be:
