Applies to machines built from: June, 2017
Push [POWER OFF].
Set the main circuit breaker to the OFF position. Lock the main circuit breaker. Use an approved lock with an approved safety tag.
Remove the spindle head covers.
Install the spindle lock tool (T-1635) onto the spindle.
|Symptom||Possible Cause||Corrective Action|
|A large flow of coolant comes out of the drain when the TSC is turned on for the first time.||The union piston is not seated.||Turn on TSC again with a TSC tool in the spindle and then quickly turn it off. The back pressure, or the TSC Purge cycle will likely push the piston down. Or, disconnect the hydraulic hose from the top of the union and use a screwdriver to manually seat the piston.|
|The amount of coolant flow from the drain tube is more than a few drops.||Runout on the carbide tip or damage to the piston cup seal||Check the motor shaft for runout. Inspect the piston cup seal.|
|The union is leaking coolant.||Leaky drain tube or no air supply to the union.||The drain tube connection is not watertight and requires glue to seal it during union assembly, make sure the hose clamp is tight. Check the solenoid and hose for air supply problems.|
|The union makes a high pitch ringing noise when running TSC that does not go away after a few minutes of running.||TSC union alignment, or shaft runout.||Check the motor shaft for runout. Inspect the piston cup seal. Re-align the union with no hoses connected.|
|The union makes a high pitch ringing noise when running TAB that does not go away after a few minutes of running.||Excessive back pressure.||Try using a tool with larger orifices to reduce back pressure or try turning on TSC briefly to lubricate the seals.|