7: TROUBLESHOOTING
©Tormach® 2021
Specifications subject to change without notice.
Page 66 UM10753: 8L Operator's Manual (Version 0321B)
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Cause: There's a defective motor or motor connection.
Probability How-To Steps Need More?
Low
1. Power off the machine (see "Power Off the Machine" (page35)).
4. Remove the motor leads from the axis driver, and examine the motor for
signs of coolant contamination.
5. Measure the resistance of windings at the green connector on the axis
driver (see Motor Resistance Reference).
6. If the resistance is out of range, carefully check the wiring:
a. Locate the axis motor connector near the motor and repeat the
resistance test.
b. If the resistance is out of spec again, then the motor is defective.
c. If the resistance is within spec, then inspect the cable and
connectors between the axis motor and axis driver.
When making resistance
measurements on motors and other
devices with low resistance, always
take a tare reading on the meter
before doing the resistance
measurement on the motor or device.
Cause: The gibs are too tight or too loose.
Probability How-To Steps Need More?
Low
Adjust the gibs.
Gibs that are too tight result in too
much friction in the ways. Gibs that are
too loose can cause binding.
Cause: Oil isn't getting to the ways and ball screw.
Probability How-To Steps
Low
1. Examine the oil level in the oiler.
2. Investigate the oiling system for lack of oil and/or plugged lines (See Tormach service bulletin SB0031).
Cause: There's oil residue from long-term storage.
Probability How-To Steps
Low
Repeatedly pump oil and slowly jog the axis.
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