Southwestern Industries TRAK 2OP M11, Safety, Installation, Maintenance, Service And Parts List

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Southwestern Industries, Inc.
TRAK

2
OP
M11 Installation, Maintenance, Service, & Part List Manual
4.7.4 Spindle Runs Backwards
The spindle motor runs in the opposite direction. The direction should be set at the factory and
so this should not be the case in the field. Since the spindle motor is run with an AC drive,
switching the power wires coming into the machine will have no effect on direction.
DANGER!
Take extreme caution when working with high voltage. There is possibility of death by
electrocution!
Possible Cause Check This
3-Phase wires backwards Switch any 2 of the 3 wires either coming out of the
AC Drive (T1, T2 & T3) or going into the Spindle
Motor (U, V & W). Caution: Be sure to shut off all
power to the machine before attempting to switch any
wires.
Wiring to AC drive incorrect. Verify that the wiring to the AC Drive is correct and
that the correct command is given. See section 5.6
4.7.5 Head Noise
Head noise pertains to any unusual noises coming from the head under load and no load
situations. Most often head noise will only be noticeable under load situations. It is important to
try to distinguish between problems with components in the head versus problems caused by the
setup or tooling being used on a particular job. Use the table below to try to pinpoint the
possible cause.
Possible Cause Check This
Machine setup or tooling problem If the noise is most evident under load (cutting situations)
then it is important to look at setup and tooling being used.
Ask the following questions.
Is the cutter dull? Is the tool loose in the holder? Am I
taking a bigger cut then is possible on the machine? Is the
part moving in the vice? Am I using realistic speeds and
feeds?
Any one of these can have a significant impact.
Spindle bearings are worn out This is categorized by a high pitch sound and is most
evident at high RPMs. It should also cause chatter under
load. Replace the spindle cartridge if this is the case. See
spindle replacement in Section 6.10.