General Condition

• Check machine level - verify within 0.02mm/m
• Inspect way covers for dents and corrosion
• Run a test fire - listen for unusual sounds from servo motor
• Check all axis movement for smoothness and backlash

Power Supply and Dielectric System

• Verify power supply voltage matches your facility
• Test dielectric pump pressure (should be 2-4 bar)
• Inspect filters - replace if dirty
• Check resin tank condition and capacity

CNC Controller and Software

• Power cycle twice - watch for alarm codes on startup
• Verify backup battery voltage (under 3V means replace soon)
• Check that all parameters are saved (ask for parameter backup)
• Load a sample NC program and dry run

Critical Measurements

• X/Y/Z axis accuracy: check with laser interferometer
• Table flatness: should be within 0.01mm
• Spindle/head alignment
• Wire tension gauge reading (for wire EDM)

Paperwork to Request

• Maintenance logs for past 2 years
• List of spare parts included
• Original manual (electronic copy acceptable)
• List of recent repairs

Always ask for a test run cutting a sample part before committing.

延伸阅读
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