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TRAK Machine Tools
Southwestern Industries, Inc.
TRAK VMC Mills with ProtoTRAK RMX CNC Safety, Installation, Maintenance, Service & Parts List
4.7 Diagnostics Table
There are two types of motion we discuss regarding the automatic tool changer, the inward and outward
motion of the tool changer sliding assembly, and the rotational movement of the tooling carousel. The
following table will attempt to simplify problem diagnosis:
Symptom
Possible Cause
Remedy
ATC will not advance
towards the spindle.
•
The front sliding door is open
•
Compressed air is not being supplied
to the machine.
•
The in-line air switch is in the closed
position
•
Low air pressure
•
The solenoid is not receiving an
electrical signal. Is the solenoid LED
illuminated?
•
The blue polyurethane tube supplying
air to advance the sliding mechanism
toward the spindle became pinched
or obstructed.
•
An obstruction is preventing
movement.
•
Close the door or defeat the safety
interlock limit switch.
•
Supply 90 psi air to the machine
•
Make certain the in-line air switch is
in the open position (upward) please
refer to pneumatic assembly drawing
26930 found at the rear of this
manual.
•
Find the cause of the low air
pressure. Pressure should be 90 psi
at the
machine’s
regulator.
•
Check that the solenoid has not been
manually over ridden.
•
Replace and re-route pinched tubing.
•
Remove the obstruction
ATC will not retract
away from the
spindle
Automatic Draw Bar has failed to release
the tool from the spindle
Re-set the air gap between the
automatic draw bar actuator, and the
automatic draw bar (5mm)
The ATC is
command
ed “In”,
however, the ATC
advances towards
the spindle, pauses
then retracts on it’s
own.
•
The ATC “IN” limit switch is not being
recognized.
•
Air pressure is too low
•
Low air pressure sensor is not set or
functioning properly
•
The ATC “IN” limit switch is
not
functioning properly
•
Remove the obstruction that is
preventing the ATC from reaching
the limit switch
•
Check the system air pressure at the
regulator, it should read 90 psi
•
Check the Low air pressure sensor, it
is set at the factory to trigger at 60
psi
•
Replace the ATC “IN” limit switch