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Check Hydraulic Pressure

Navigate to CURRENT COMMANDS > DIAGNOSTICS and verify hydraulic pressure reads 800-1000 PSI. Check Parameter 800 (Hydraulic Pressure) for current reading.

Never operate with hydraulic pressure below 700 PSI

Inspect Hydraulic Filter

Check hydraulic filter for contamination or clogging. Replace filter if dirty or if pressure differential exceeds 25 PSI across filter.

Mark filter replacement date on filter housing for tracking

Verify Hydraulic Pump Operation

Listen for unusual pump noise and check for hydraulic leaks around pump assembly and pressure lines. Monitor pump cycle time in diagnostics.

Shut down machine immediately if hydraulic fluid leaks are detected

Check Input 1030 Status

Go to CURRENT COMMANDS > DIAGNOSTICS > INPUTS and monitor Input 1030 (Tool Clamp) while manually cycling the drawbar. Signal should toggle between active/inactive.

Use a metal object to test proximity switch sensitivity if accessible

Inspect Switch Mounting

Check proximity switch mounting bracket for looseness or misalignment. Switch should be positioned 2-4mm from target when drawbar is clamped.

Ensure spindle is stopped and locked out before accessing drawbar area

Test Switch Continuity

With power off, disconnect proximity switch connector and test continuity with multimeter. Replace switch if readings are inconsistent or infinite resistance.

Follow lockout/tagout procedures before electrical testing

Inspect Drawbar Movement

Manually cycle drawbar using MANUAL > SPINDLE > TOOL RELEASE and observe smooth operation. Check for binding, unusual noise, or incomplete travel.

Listen for consistent 'click' sound when drawbar engages and releases

Clean Drawbar Assembly

Remove accumulated chips and coolant from drawbar area. Use compressed air and appropriate cleaning solvent. Lubricate per maintenance schedule.

Ensure spindle orientation pin is engaged before drawbar maintenance

Check Drawbar Spring Tension

Verify drawbar spring provides adequate tension for tool retention. Inspect for spring fatigue, breakage, or improper installation.

Compressed springs store significant energy - handle with caution

Inspect Tool Holder

Remove tool holder and inspect retention knob for damage, wear, or contamination. Check for proper CAT/BT taper specification matching spindle.

Use retention knob gauge to verify proper dimensions and thread condition

Check Spindle Taper

Clean spindle taper thoroughly and inspect for damage, scoring, or contamination. Use spindle taper cleaning tools and verify surface finish.

Never use abrasive materials on precision spindle taper surfaces

Test Tool Holder Seating

Install known good tool holder and verify proper seating depth and clamp engagement. Compare with suspect tool holder behavior.

Mark tool holders that consistently cause issues for replacement or repair

Inspect Wiring Harness

Trace wiring from drawbar proximity switch to control cabinet, checking for damage, wear, or pinch points. Pay attention to cable track areas.

Disconnect power before inspecting electrical connections

Check Connector Integrity

Inspect all connectors in Input 1030 circuit for corrosion, loose pins, or contamination. Clean with electrical contact cleaner if needed.

Apply dielectric grease to connectors in coolant-exposed areas

Verify Signal Continuity

Use multimeter to test continuity from proximity switch through to control input terminal. Check for proper voltage levels per electrical schematic.

Use only approved test equipment rated for machine voltage levels