Haas TSC-300/1K User Manual

How it Works
The Through-Spindle Coolant (TSC-300/1K) with Auto-Clean
filter uses a gear-driven pump that is mounted in the coolant tank
to move pressurized coolant through the cutting tool. The coolant
then returns to the coolant tank. The coolant continuously cycles
through the coolant system.
1. TSC Auto-Clean Coolant Pump: Pressurizes and pumps the
coolant from the coolant tank through the TSC system. The auto-
clean pneumatic cylinder eliminates the need for an inline filter.
When the pump stops, the pneumatic cylinder activates, cleaning
the filter and preventing chips from entering the TSC system. A
vacuum sensor detects if the filter is clogged.
2. Check Valve: A one-way valve that lets coolant flow through in
one direction. It does not let the 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 maintain a seal between the TRP and the top of the drawbar.
or
TSC Union Solenoid (50-Taper or inline): During TSC operation, the coolant union solenoid applies low-pressure air
to the coolant union. This helps to maintain a seal between the rotating and non-rotating parts.
TSC-300 Pump Diagram
Haas Technical Documentation
TSC-300/1K - How it Works and
Troubleshooting Guide
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Copyright 2020 by Haas Automation, Inc. No unauthorized reproduction | Last Published On December 26, 2016 1/8

Haas TSC-300/1K Specifications

General

Brand	Haas
Model	TSC-300/1K
Category	Industrial Equipment
Language	English

Summary

How the TSC System Works

TSC Auto-Clean Coolant Pump

Pressurizes and pumps coolant; auto-clean pneumatic cylinder cleans filter. Vacuum sensor detects clogs.

Check Valve Function

A one-way valve allowing coolant flow in one direction, preventing backflow when the pump is off.

Vacuum Generator

Creates a vacuum effect to remove excess coolant from the TSC system.

Precharge/Union Solenoid

Applies low-pressure air to maintain seals between rotating and non-rotating parts or drawbar.

TSC Pump Diagram and Performance

TSC Operation Commands

Use M88 to activate TSC, M89 to deactivate, or press [AUX CLNT].

Pressure vs. Tool Orifice Diameter

Graph showing approximate pressure versus tool orifice diameters for TSC 1000 and TSC 300.

Troubleshooting Alarm 151

Alarm 151: Electrical Faults

Addresses short circuits in pump motor/cable, blown fuses, or tripped breakers.

Alarm 151: Incorrect Power Phasing

Details how incorrect power phasing causes the pump motor to run backward.

Alarm 151: Pump Head Assembly Issues

Covers damage to motor shaft key, collar, or wear in the pump head assembly.

Alarm 151: Pressure Sensor Malfunction

Discusses a defective TSC pressure sensor affecting system readings.

Troubleshooting Low Coolant Flow

Low Flow: Tank and Return Issues

Addresses slow coolant return to tank and low coolant levels.

Low Flow: Pump Internal Issues

Covers damaged pressure relief springs and clogged filters/strainers.

Low Flow: Auto-Clean Filter Issues

Troubleshoots the auto-clean coolant pump filter if it fails to operate.

Section 1: Electrical Checks

Checking Fuses and Breakers

Verify fuses on the power supply PCB (TSC-300) or circuit breaker (TSC-1K).

Testing Pump Motor for Shorts

Measure pump cable leads to ground to detect short circuits.

Checking Motor Binding

Inspect the TSC motor for binding that could cause over-amperage.

Section 2: Power Phasing

Phase Detect Indicators

Check neon indicators on the power supply PCB for correct power phasing.

Correcting Power Phasing

Swap incoming power cables at the main transformer if phasing is incorrect.

Section 3: Pump Head Assembly

Checking Pump Coupling and Shaft

Rotate pump motor fan and coupling; check for damaged key on motor shaft.

Section 4: Pressure Sensor

Diagnosing Pressure Sensor Issues

Short sensor leads to check I/O diagnostics bit state.

Verifying Pressure Readings

Use inline gauge to verify pressure after sensor check; replace if over 40 psi.

Section 5: Coolant Tank and Return

Clearing Auger Trough and Drains

Remove chips from the auger trough and coolant return drains.

Coolant Tank Maintenance

Remove chips from tank, fill tank, and check coolant level sensor.

Section 6: Pump Relief Spring

Inspecting Pressure Relief Components

Remove pump, plugs, and inspect spring and valve pin for damage.

Section 7: Filter and Strainer Maintenance

Cleaning Filter (Post-March 2015)

Press plunger to clean; check auto-clean plunger activation and solenoid.

Cleaning Filter (Pre-March 2015)

Remove filter retaining ring and screen; clean with soapy water.

Cleaning Chip Basket Strainer

Remove chip basket and mesh strainer; clean all chips from the strainer.