repairs

Repair Log

Every repair is documented and feeds back into the knowledge base. Patterns are detected automatically.

8

Total Repairs

71 min

Avg Fix Time

1

Critical

3

Equipment Affected

Recurring Issue Detected: 3 coolant-related repairs on Haas VF-2

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

Pattern Emerging: 2 filter-related repairs on Haas VF-2

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

Pattern Emerging: 2 hydraulic-related repairs on Haas VF-2

Dates: Mar 5, Jan 28. Consider a root-cause investigation or preventive maintenance adjustment.

Pattern Emerging: 2 spindle-related repairs on Haas VF-2

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

major
Haas VF-2 CNC Vertical Machining Center

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
minor
Haas VF-2 CNC Vertical Machining Center

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
major
Haas VF-2 CNC Vertical Machining Center

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
minor
DMG Mori NLX 2500/700 CNC Turning Center

Hydraulic unit warning light on. Oil temperature reading 68°C — above 60°C warning threshold. Machine still operational but derated.

Mar 5, 2026

Daryl Boatwright

Root Cause

Hydraulic oil cooler airflow blocked by accumulated shop debris — no PM schedule existed for this equipment (undocumented)

20 min
major
Mazak Quick Turn 250 CNC Turning Center

Turret not indexing to position 8. Alarm 3025 (turret position error). Other positions index fine.

Feb 19, 2026

Kenji Watanabe

Root Cause

Metal chip wedged in Hirth coupling teeth at turret position 8 preventing mechanical lock

50 min
major
Haas VF-2 CNC Vertical Machining Center

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
critical
Mazak Quick Turn 250 CNC Turning Center

Chuck grip force measured at 38 kN during PM check — below minimum 45 kN spec. No alarm but parts occasionally shifting in chuck during heavy cuts.

Jan 28, 2026

Kenji Watanabe

Root Cause

Draw tube hairline crack reducing hydraulic clamping force. Would have been missed if hydraulic pressure was simply increased.

180 min2 partsSOP-005
minor
Haas VF-2 CNC Vertical Machining Center

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