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TRAK Machine Tools
Southwestern Industries, Inc.
TRAK TRL Lathe, ProtoTRAK RLX CNC Safety, Installation, Maintenance, Service & Parts List
3.3.1 Run Away Axis
The axis makes an unwanted move at rapid speed in one direction and faults out. This is usually
caused by an encoder signal being interrupted.
Perform the following Service Codes:
Code 33
Software Identification. This is needed if you call SWI Customer Service.
Code 131 Manual DRO
.
Used to move the axes to verify the encoders are counting.
Possible Cause
Check This
The home position or tools are not set
correctly
See the Controls Programming, Operations and Care
manual.
Bad Motor Encoder
See Motor diagnostics Section 4.4
3.3.2 Slow Down Axis
The axis slows down and moves at a feedrate that is lower than rapid or than the programmed
feedrate.
Perform the following Service Codes:
Code 33
Software Identification. This is needed if you call SWI Customer Service.
Code 131
Used to check the maximum feedrate of an axis and if the encoders are counting.
Code 129
Set's the maximum allowable arc accuracy error. This applies to arcs only.
Possible Cause
Check This
The maximum allowable Arc Accuracy is
set too low.
This value will only slow down the machine during arc moves.
The factory default is set at 0.005". Perform Code 129 to
check or change this value. See Service Codes section.
Values lower than 0.005” may reduce the feedrate.
Incoming AC voltage is inadequate
Perform Code 100. See Service Codes - Section 4.8 and
Electrical Section 4.6
Inadequate or no Lubrication to
Ballscrews and Way surfaces
Make sure all the Way surfaces are getting proper lubrication.
If not, check to make sure that the lube pump is functioning
properly. Also check for any pinched or blocked oil lines. See
Lubrication Section 4.1.3
X and Z-axis Gibs are not adjusted
properly
Check the adjustment of the X and Z-axis Gibs using the X
and Z-axis Gib adjustment procedures.
Binding in the Drive Train
Check Repeatability using the Repeatability and Positional
Accuracy procedure. Check the torque reading of the Drive
Train. Step by step, carefully inspect the Drive Train for any
binding. It may be necessary to disassemble and then
reassemble the Drive Train. See Mechanical Drive Train (X, Z)
Section 4.2
Servo Drive failure
See Servo Drive Section 4.5
Motor failure
See Motor Section 4.4
3.3.3 Axis Motor Motion Is Not Smooth
While under motor power, the motion is not smooth. The motion appears to be "rough" or jerky”.
Perform the following Service Codes and procedures:
