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Section 5

Symptoms:

 Low coolant flow, no alarm. Low coolant flow, the

pump cavitates (cavitation sounds like heavy grit in the pump
head, or a suction sound) or is otherwise noisy.

Possible Cause:

 The coolant does not return to the coolant tank

fast enough. The coolant level in the coolant tank is low.

Chips build up in the auger trough [1], and the coolant return
drain [2] on the enclosure pan. This slows the coolant from
returning to the coolant tank.

Corrective Action:

Remove all chips from the the auger trough [1], and the coolant
return drain [2].

Click the links, or go to 

diy.haascnc.com

 to complete these tasks:

Remove chips from the coolant tank. Excessive chips in the coolant tank reduce the amount of coolant the tank can
store. Watch the video 

Machine Tool Coolant - Cleaning Your Tank - Video

.

Fill the coolant tank. Watch the video 

Standard Coolant – Simplified - Filling your Tank … and More

.

Make sure the coolant level sensor operates correctly. Go to the document 

diy.haascnc.com

 to troubleshoot the

coolant level sensor..

Section 6

Symptoms:

 Low coolant flow, no alarm. Low coolant flow, the

pump cavitates (cavitation sounds like heavy grit in the pump
head, or a suction sound) or is otherwise noisy.

Possible Cause:

 The pressure relief spring in the pump head is

damaged.

Corrective Action:

1.  Remove the TSC pump from the tank.
2.  Remove the pressure relief plugs.
3.  Inspect the spring and valve pin. Replace the spring if it is

broken and the pin if it is pitted or worn.

Copyright 2020 by Haas Automation, Inc. No unauthorized reproduction | Last Published On December 26, 2016

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Summary of Contents for TSC-300/1K

Page 1: ...e coolant flow back down into the tank when the pump is powered off The pressure sensor in the check valve tells the control that the system is working 3 Vacuum Generator This creates a vacuum effect to remove excess coolant from the TSC system 4 Precharge Solenoid 40 Taper belt driven During TSC operation the precharge solenoid applies low pressure air to the Tool Release Piston This helps to mai...

Page 2: ... pressure vs tool orifice diameters Use M88 to activate TSC and M89 to deactivate it You can also press AUX CLNT to activate and deactivate TSC Copyright 2020 by Haas Automation Inc No unauthorized reproduction Last Published On December 26 2016 2 8 ...

Page 3: ...nt pressure sensor 4 Low coolant flow no alarm Low coolant flow the pump cavitates cavitation sounds like heavy grit in the pump head or a suction sound or is otherwise noisy Damage to the motor shaft key shaft collar or wear in other parts of the pump head assembly Inspect the motor shaft pump head assembly 3 The coolant does not return to the coolant tank fast enough Remove chip buildup from the...

Page 4: ...it breaker trips again check for a short circuit in the TSC pump Note On pumps made before December 2016 you must use water based coolants with The TSC 1K system Thicker fluids like cutting oil will overload the pump and trip the breaker 2 Check the pump for shorts Measure the 3 leads 3 to ground 4 on the TSC power cable If all leads 3 test open to ground 4 the pump and cable do not have a short I...

Page 5: ...he incoming power is phased correctly Orange Light The incoming power is incorrectly phased Both Lights A phase is missing there is a loose cable in the system If the electrical power is phased incorrectly Set the main circuit breaker on the machine to the OFF position Lock the main circuit breaker Use an approved lock with an approved safety tag Swap the 74 and 75 incoming power cables at the mai...

Page 6: ...damaged key on the motor shaft Section 4 Symptom Alarm 151 LOW THROUGH SPINDLE COOLANT Possible Cause The TSC pressure sensor does not work Some coolant flow may occur if this is the case Corrective Action Press PARAM DGNOS Go to the I O diagnostics page Short the sensor connector leads The Low TSC Pressure bit state should change from 1 to 0 If it does not change then the cable or the I O PCB is ...

Page 7: ...duce the amount of coolant the tank can store Watch the video Machine Tool Coolant Cleaning Your Tank Video Fill the coolant tank Watch the video Standard Coolant Simplified Filling your Tank and More Make sure the coolant level sensor operates correctly Go to the document diy haascnc com to troubleshoot the coolant level sensor Section 6 Symptoms Low coolant flow no alarm Low coolant flow the pum...

Page 8: ...he tray lid 3 from the filter 4 Use a brush to clean the filter Install the filter tray to the bottom of the TSC pump assembly If the solenoid operates and it outputs air check the air tube for kinks or breaks Machines made before March 2015 Remove the filter retaining ring 1 and filter screen 2 from the bottom of the TSC pump assembly Clean the filter screen 2 with warm soapy water and a soft bru...

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