EQ-001
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Haas VF-2 CNC Vertical Machining Center

Haas Automation · CNC Mill · Bay 1, Cell A

Documented

5

Total Repairs

63

Avg Fix Time (min)

0

Critical

3

Major

5

Unique Parts Used

Recurring Issue Detected: 3 coolant-related repairs on Haas VF-2 CNC Vertical Machining Center

Dates: Jan 15, Mar 12, Apr 10. Consider a root-cause investigation or preventive maintenance adjustment.

Pattern Emerging: 2 filter-related repairs on Haas VF-2 CNC Vertical Machining Center

Dates: Jan 15, Mar 12. Consider a root-cause investigation or preventive maintenance adjustment.

Pattern Emerging: 2 spindle-related repairs on Haas VF-2 CNC Vertical Machining Center

Dates: Feb 8, Apr 2. Consider a root-cause investigation or preventive maintenance adjustment.

Root Cause Summary

  • RPR-008Way oil over-lubrication contaminating coolant system. Bacteria growth from tramp oil caused foaming and odor.
  • RPR-006Spindle drive belt worn and glazed after 2,400 hours — manufacturer recommends replacement at 2,000 hours
  • RPR-003Coolant filter housing O-ring degradation causing slow leak and gradual pressure drop
  • RPR-002Loose spindle drive cooling fan connector causing intermittent overheating of servo amplifier
  • RPR-001Coolant filter clogged — exceeded 500-hour change interval by 200 hours due to heavy aluminum cutting

Repair Timeline

RPR-001

minor

Coolant flow dropped below 1 GPM during heavy roughing pass. Machine threw Alarm 410 (low coolant pressure).

Jan 15, 2026

Marisol Vega

Root cause: Coolant filter clogged — exceeded 500-hour change interval by 200 hours due to heavy aluminum cutting

35 min2 partsSOP-001

RPR-002

major

Recurring Alarm 332 (spindle drive fault). Reset clears it temporarily but it returns within 20 minutes of high-speed operation.

Feb 8, 2026

Marisol Vega

Root cause: Loose spindle drive cooling fan connector causing intermittent overheating of servo amplifier

25 minSOP-003

RPR-003

major

Coolant not reaching tool tip during deep pocket milling. No alarm, but parts showing burn marks from dry cutting.

Mar 12, 2026

Tom Reilly

Root cause: Coolant filter housing O-ring degradation causing slow leak and gradual pressure drop

45 min2 partsSOP-001

RPR-006

minor

Spindle belt squealing during high-speed operation above 6000 RPM. Intermittent vibration visible on surface finish.

Apr 2, 2026

Tom Reilly

Root cause: Spindle drive belt worn and glazed after 2,400 hours — manufacturer recommends replacement at 2,000 hours

90 min1 partSOP-003

RPR-008

major

Coolant smell and foaming. Milky appearance. Refractometer reading dropped from 8% to 3% concentration.

Apr 10, 2026

Marisol Vega

Root cause: Way oil over-lubrication contaminating coolant system. Bacteria growth from tramp oil caused foaming and odor.

120 min2 partsSOP-001